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Operator
Greetings and welcome to the Juniper Networks first quarter 2010 financial results conference call. (Operator Instructions). It is now my pleasure to introduce your host, Ms. Kathleen Bela, Vice President of Investor Relations for Juniper Networks. Thank you. Ms. Bela, you may begin.
- VP of IR
Thank you, Manny. Good afternoon, and thank you for joining us today. Here today are Kevin Johnson, Chief Executive Officer, and Robyn Denholm, Chief Financial Officer. A couple of housekeeping items before we begin. First, as a reminder, there is a slide deck that accompanies today's conference call. To access the slides, please go to the IR section of our website at www.juniper.net. Also we have included a full look into our geographic revenue distribution in our slide deck. This call will also be available to download as a Podcast. For details, visit our website.
I'm also pleased to announce that starting today, you can follow Juniper IR on Twitter belajnpr. Over the next few weeks, the IR group will be posting items to our corporate blog, The Network Ahead; and we would, of course, love to hear your input on how best to use social media to communicate with you. With that, I would like to remind everyone that statements made during this call concerning Juniper's business outlook, economic and market outlook, future financial operating results and overall future prospects are forward-looking statements that involve a number of risks and uncertainties.
Actual results could differ materially from those anticipated in these forward-looking statements as a result of certain factors, including economic conditions generally or in the networking industry, changes in overall technology spending, the network capacity requirements of service providers, the timing of orders and shipments, manufacturing and supply chain constraints, variation in the mix of products sold, customer perception and acceptance of our products, litigation and other factors listed in our most recent report on Form 10-K which we file with the SEC. All statements made during this call are made only as of today. Juniper undertakes no obligation to update the information in this conference call in the event facts or circumstances subsequently change after the date of this call.
In discussing the financial results today, Robyn will first present results on a GAAP basis, and for purposes of today's discussion will also review non-GAAP results. For important commentary on why the management team considers non-GAAP information a useful view of the Company's financial results, please consult our 8-K filed with the SEC. For the detailed reconciliation between GAAP and non-GAAP results, please see today's press release. In general, non-GAAP results exclude certain nonrecurring charges, amortization of purchased intangibles, other acquisition-related charges and expenses related to stock-based compensation. In today's call, Robyn will also be providing forward-looking guidance. As a reminder, guidance is provided on a non-GAAP basis.
All guidance is forward-looking, and actual results may vary for the reasons I noted earlier. GAAP guidance measures are not available on a forward-looking basis due to the high variability and low visibility with respect to the charges, which are generally excluded from the non-GAAP guidance estimates. Please note that today's call is scheduled to last for one hour, and please limit your questions to one per firm. With that, I will turn the call over to Kevin.
- CEO
Thanks, Kathleen and thanks, everyone, for joining us today. Our first quarter results reflect continued good execution throughout the Company as we establish a solid foundation for growth. On our January call and at the February financial analyst meeting we laid out a set of operating principal principles for the year. Primary among them is that we see 2010 as a year of growth. The performance we are reporting today reinforces our posture for growth and increases our conviction of that view as we look ahead. The economic environment continues to evolve constructively for us overall; and as we commented in the past, the pace and trajectory of the recovery will vary by geography.
We continue to see the US economic situation improving, with Western Europe economic indicators somewhat less favorable than those of the US. Macroeconomic indicators in Asia remain strong with the exception of Japan. And at a global level, demand for high performance networking continues to grow and we are seeing good momentum in critical areas of the business, particularly with the traction we're gaining in new products and our efforts to expand routes to market. In addition to driving growth, we are also evolving our internal processes, systems and execution capability. We're aggressively pursuing the opportunities presented by the transformation of the network, and at the same time we are strengthening our organization to best support our growth objectives both near and long-term. Our entire Company has done a great job embracing this transformation, staying focused and delivering financially for our shareholders. I'll get into more detail on the actions we're taking internally, but first let's take a look at the business environment starting with the service provider market.
After a very strong finish to Q4 of 2009, our outlook for the first quarter implied a slight quarter on quarter contraction of carrier spending. Our Q1 result was in line with that expectation. As we enter Q2, we are already seeing positive signs in the pipeline of US carrier spending for the upcoming quarter and for the year. We were also pleased to see the resumption in investment during the quarter by our content service provider customers. In short, we expect it to be a good year for service provider spending overall, and our outlook supports that. This quarter we continued to make progress in core routing, as we secured five new customer wins for the TX Matrix Plus. We reaffirmed our leadership in 100 gig ethernet networking during a trial that covered a 1,000-mile optically amplified section of the Verizon network.
We announced advances in silicon that will enable customers to upgrade their existing T-series core routers to a system capacity of four terabits per second without service interruption. We believe the combination of increased demand for core routing, share gains we observed in Q4 of 2009, innovation in 100 gig ethernet trials, advances in silicon and new customer adoption of our TX Matrix Plus as positive signs for our business in core routing. In the area of edge routing, we are pleased with the customer response to the MX 3D, and we are seeing some strong early bookings of the dense 10 gig ethernet line card, as well as several beta trials of the low end MX80. We have expanded our solutions footprint into the areas of mobility and video. Mobility and video represent significant drivers of network expansion, and they are areas that complement the MX 3D edge router and our programmable Junos platform.
For example, our Traffic Direct solution is running in production of early adopters and will be generally available to all customers this quarter. This solution is the first deliverable from project Falcon and enables wireless operators to offload bulk data traffic directly to the Internet and migrate seamlessly to next gen network architectures, including 4G. We launched the Junos Space platform late last year to enable partners and customers to drive automation, reduce operating expenses and better support high performance networks. At the end of Q1, we had over 60 service providers executing trials of Junos Space. We introduced our Mobile Secure solution that is tailored for the new world of anywhere, any time, any device connectivity, and we're pleased to note that Verizon, Sprint and AT&T have all expanded their infrastructure routing base to include the high end SRX solution to secure mobile traffic.
At the Mobile World Congress, we also announced Junos Pulse, which is software to secure FSL VPN and user access control experience, running on board a range of mobile devices including notebooks, netbooks, SmartPhones and feature phones. We expanded Junos Pulse to now run on Android, Symbian, Windows Phone; and earlier this month, Apple announced the secure mobile capability as part of their iPhone O S4 announcement. In addition to our progress in mobility, we recently announced an agreement to acquire Ankeena Networks, which closed yesterday. The combination aligns with our strategy. First, their technology enables rich media content caching and distribution within the network, as well as smooth streaming of video to end user devices. It also directly integrates with our MX 3D edge router solution. As a partner, Ankeena developed their technology in alignment with the Junos platform. We believe this strengthens our value proposition not only for edge routing, but it expands our addressable market now to include the ICDN solutions.
Second, we have a roadmap of additional media and content capabilities that leverage Junos, Junos Space and potentially Junos Pulse to further transform the economics and the user experience of video distribution and consumption. Finally, as part of the media flow solution, our salesforce has been working with Ankeena to develop an opportunity pipeline across a number of service providers. We believe this tuck-in acquisition reinforces our vision of the new network ecosystem, expands our portfolio of edge routing solutions and delivers unique value to our customers. It also opens up a new addressable ICDN market for Juniper, which in turn creates additional shareholder value. Let me now shift to the enterprise market. We grew our enterprise business in 2009, and this quarter represented a great start to 2010. We're gaining traction in the enterprise because of our ability to deliver a portfolio of routing, switching and security solutions. Our EX switch portfolio continues to grow on a sequential and year-over-year basis.
We expanded the EX portfolio with the EX2200. We achieved engineering milestones on the Stratus project, which advances our vision for how data centers will be architected in the future, and our product portfolio continues to expand. This is fueling several landmark customer wins. One example in public sector is the US Joint Forces Command, where we are enabling a comprehensive core to edge network for realtime training of Army, Navy and Air Force personnel. We continue to expand in the financial services sector as well. We recently announced our work with the Tokyo Stock Exchange to provide a low latency, ultra reliable, high capacity network that supports its next generation securities trading system. At the Agricultural Bank of China, we announced Juniper as the provider for their new nationwide backbone network.
These are just a few examples of the opportunities we are winning in the enterprise. We're seeing more opportunity for growth in the enterprise, and we intend to ramp up in our engagement with the channel and our field and sales marketing with a goal of further accelerating our market penetration of the EX and the Enterprise Solution portfolio. From an operational perspective, we implemented several improvements in Q1 that strengthened our operational ability and support the growth agenda for the Company. Specifically, we implemented a new field operating model with specific operating area aligned by our service provider and enterprise sectors. This provides more line of sight visibility on execution and accountability at the field level. We implemented a new customer relationship management system that supports our sales, marketing and services execution engine, and we also created the Junos Ready Software Business group to amplify our focus on software that leverages Junos, Junos Space and Junos Pulse.
In summary, we have a clear strategy, and it's working. We are building a foundation to drive disciplined execution and long-term growth at Juniper. We have a big opportunity, and we're going after it. Now I'll turn it over to Robyn to tell you a little bit more about the numbers. Robyn?
- CFO & EVP
Thank you, Kevin, and good afternoon, everyone. We established a good foundation that quarter for growth throughout 2010. As a result of continued market position wins and solid execution, our revenue and gross margin came within our expected range, Whilst operating margins and earnings per share came in above our forecasted ranges. We continued to deliver strong performance in both the service provider and enterprise markets. As expected, service provider declined modestly following an exceptional fourth quarter, and showed good year-over-year growth. Our momentum in the enterprise continued to build, with another record revenue quarter.
Overall, our underlying demand indicators this quarter were healthy, with another record deferred revenue quarter and a book to bill of approximately one. Now on to a review of the numbers. As you read in the press release, we early adopted the new revenue accounting rules. For the purposes of today's discussion, all Q1 2010 results reflect these new rules. On a GAAP basis, total revenue for the first quarter was $913 million. This is a 19% increase from the prior year first quarter and a 3% decline from Q4 2009. The $913 million includes $25 million of recognized under the new revenue accounting. All of the $25 million related to orders that were booked and shipped during the quarter. GAAP diluted earnings per share were $0.30 for the first quarter compared to $0.04 per share in the fourth quarter of 2009 and a $0.01 loss per share in the prior year first quarter.
GAAP net income includes the impact of the new revenue recognition rules of approximately $0.02 per share and a nonrecurring income tax benefit of $54 million or $0.10 per share. This relates to a change in the tax treatment of stock-based compensation and R&D cost sharing arrangements due to a Federal appellate court ruling in the (Inaudible) case earlier this quarter -- earlier in Q2. Sorry, during the quarter in Q1. We also recognized the final portion of the 2009 restructuring costs in the amount of $8.1 million or approximately $0.01 per share. Non-GAAP earnings per diluted share were $0.27, an increase of $0.10 compared to the prior year first quarter and down $0.05 sequentially.
Looking more closely at revenue, I'll give you color on the regions, business segments and markets; and for additional detailed commentary, please refer to the slide deck. Looking at our revenue by region, for the quarter the Americas was approximately 53% of total revenue, EMEA was 29% and APAC was 18%. The Americas revenue increased 36% year over year and decreased 5% sequentially. As anticipated, the sequential decline primarily reflects lower spending by certain US carriers compared an exceptionally strong Q4 of 2009. EMEA revenue was up 18% year over year and 4% sequentially due to strength in the UK and Germany. APAC revenue declined 12% on a year-over-year basis and 7% sequentially due to declines in Japan's service provider. The rest of APAC grew 8% year over year, with significant service provider design wins. Total APAC enterprise grew 14% year over year and 1% sequentially.
As we move throughout the year, we expect the geographical mix of revenues to fluctuate quarter to quarter, in keeping with our view that the pace of the economic recovery will vary by geography. Overall we are planning for 2010 to be a growth year for Juniper. On a segment basis, total IPG revenue of $679 million was up about 20% year over year, driven by both net new customer wins and expansion in our current install base, and down 2% sequentially. IPG saw growth on a sequential and year-over-year basis in MX products. We are pleased with the strong customer acceptance of our recently launched MX 3D line cards, which continues to fuel the growth of our overall MX product platform. We also crossed a significant milestone, achieving over $1 billion of revenue for the MX product line since it first shipped in Q1 of 2007, making it one of our fastest ramping product families to date.
We saw a continuing resumption of customer investment in the core, and we are pleased with the performance of our TX Matrix Plus series core routers. This performance reflects both existing projects and new design wins. EX revenue grew to $77 million, more than double the revenue level of the prior year quarter and a 4% sequential increase. The momentum we're seeing from our EX Switch business continues to drive good results as we expand our market penetration and build our install base. SLT delivered revenue of $234 million, which represents a 19% increase on a year-over-year basis and a 5% decrease sequentially. The increase was driven by growth in SRX, which contributed $60 million in product revenue. The SRX product line continues to gain traction and is now at an annual run rate of about $240 million.
Looking more closely at the markets we address, service provider revenue was 67% and enterprise revenue was 33% of total revenue. Service provider revenue was up 17% on a year-over-year basis and down 5% sequentially. We saw a resumption in spending content service providers globally, as well as regional North American carriers. This was the result of new design wins with new customers and expansion of projects with existing customers. We also saw reasonable growth in the European carriers. Verizon was greater than 10% of our revenue for the quarter. This was driven by the expansion of multiple ongoing projects, as well as new design wins. We are very pleased with our strong relationship with Verizon. Enterprise revenue was up 25% year over year and up 1% sequentially. IPG was up 36% year over year and 20% sequentially.
EX was up more than double year over year and up 11% sequentially. SLT was up 1% year over year and reported a seasonal decline of 10% sequentially. These results were a reflection of our ongoing go-to market strategy and increased focus on our sales of routing, switching and security into the enterprise. We saw good traction in the financial services, government and healthcare markets. On a non-GAAP basis, total gross margins for the quarter were 67.6% of revenue, which is within our long-term model of 66% to 68%. Product gross margins were 69.3% of revenue, up from 67.6% in the first quarter of last year and up from 68.5% in the fourth quarter of 2009. This improvement is the result of cost reductions and mix.
Service gross margins were 61% of revenue compared to 62.4% in the first quarter of last year and compared to 64.1% in the fourth quarter of 2009. This decline is the result of higher services costs, driven by increased headcount and higher spares purchases to support the continued growth in the business. Moving on to our operating expenses, for Q1, non-GAAP operating expenses totaled $405 million, or 44.4% of revenue. Relative to the fourth quarter and slightly better than expected, operating expenses declined marginally. Year over year, operating expenses increased 23 million or 6%. Factors affecting Q1 expenses include new hires as we continue to invest in R&D, sales and services and seasonal factors including bonus accruals and the reset of the FICA taxes.
R&D expenses were $189 million or 20.7% of revenue, up 17 million compared to the fourth quarter. Sales and marketing expenses totaled $180 million or 19.7% of revenue, a $20 million decrease sequentially due to lower marketing expenses and a reduction in sales commissions. G&A expenses totaled $36 million or 4% of revenue, up slightly sequentially. I'm pleased with our non-GAAP operating margin for the quarter, which was better than expected at 23.2%. This represents a 1.2 point sequential decline, which was primarily a function revenue. These results overall reflect continued good execution against our operating principles and support our long-term operating margin goal of 25% or higher. I'd like to thank our employees for their continued dedication to innovation, customer focus and operational excellence.
Looking at the operating margins by segment, IPG operating margin was 26% compared to 19.7% in the first quarter of last year and 26.3% in the prior quarter. As a reminder, our investments in both EX and Projects Stratus and Falcon are included within the IPG segments. SLT operating margin was 15% compared to 6.6% in the first quarter of last year and 19.3% in the prior quarter. The sequential decrease was primarily due to seasonally lower revenue and higher costs, including costs related to the FICA. Turning to the bottom line, Juniper posted non-GAAP net income of $146 million for the quarter, up 60% year over year and down 16% sequentially.
As we noted earlier, we recorded a nonrecurring income tax benefit of $54 million, which resulted in the GAAP tax rate for the quarter being a benefit of 1.8%. As expected, the non-GAAP income tax rate for the quarter was approximately 30.6% which was higher than last quarter due primarily to the expiration of the R&D tax credit. Looking at the balance sheet, we ended the first quarter with nearly 2.8 billion in total cash and investments. This balance was up approximately 108 million from the prior quarter. We're pleased with our continued strength in cash generation. For the first quarter of 2010, Juniper generated cash from operations of $258 million before the litigation settlement payments of $169 million.
In late February, we announced that our Board of Directors approved a new stock repurchase program for up to $1 billion of common stock. During the quarter, we repurchased 2.8 million shares at an average price of $27.04 per share or approximately $74 million. Our weighted average shares outstanding for the first quarter were approximately 537 million shares on a diluted non-GAAP basis, roughly flat with the prior quarter. CapEx for the quarter totaled $38 million, and depreciation and amortization was $35 million, consistent with the prior quarters. DSO was 40 days compared to 44 days reported in the fourth quarter. Total deferred revenue was a record $790 million. Product deferred revenue was up 71% or $104 million year over year, and up 4% or approximately $9 million sequentially.
Services deferred revenue increased 16% year over year or $74 million, and 5% or approximately $27 million sequentially. Even with the adoption of the new revenue recognition rules, we continue to defer product revenue for arrangements entered into prior to the beginning of the year, and we will recognize those revenues under the old rules. We ended the quarter with headcount of 7,453. The increases were in R&D, customer service, sales and marketing, and are all aimed at supporting growth in the business. Since the end of the first quarter, we announced and have now closed the acquisition of Ankeena Networks for cash plus the assumption of outstanding equity awards. The Ankeena acquisition reinforces our vision of the new network ecosystem and expands our portfolio of edge routing solutions and delivers unique value to our customers. It will also open up a new addressable ICDN market for Juniper. Total cash consideration at closing was less than $100 million.
Now let's turn to our guidance. As a reminder, guidance is provided on a non-GAAP basis, except for revenue and share count. We believe that the economic environment continues to improve. We also anticipate the continued resumption of spending by service providers in both the core and the edge, and that we will continue the momentum we've established in the enterprise sector. These factors are increasing our conviction that 2010 will be a year of growth for the Company. As a result, we're expecting revenue for the June quarter of $950 million, plus or minus $20 million. Gross margins for Q2 are expected to remain flat with the first quarter at approximately 67%. Operating expenses will increase modestly as we invest in sales and marketing and R&D to support growth in the business. Operating margin for the second quarter will be approximately 23%, plus or minus 50 basis points.
We remain committed to achieving our long-term targets on a sustainable basis. This would result in Q2 non-GAAP EPS of between $0.27 to $0.29. This assumes a flat share count and a tax rate of 31%, and guidance is prior to any acquisition-related costs which we expect to round up to $0.01 for Q2. For the full year, let me remind you of our operating principles. First, we assume the macroeconomic environment will continue to improve. We intend to accelerate out of the downturn and outpace the market recovery.
We will continue to invest in innovations that deliver long-term value to our customers, and we will drive year-over-year margin expansion by growing revenues faster than OpEx, and we will maintain a healthy balance sheet and generate strong cash flows. And with that, I'll hand it over to the operator for questions.
Operator
(Operator Instructions). Our first question is from the line of Simone Jankowski. Please go ahead.
- Analyst
Hi, thank you so much. Just a clarification first, and then a question. In terms of the clarification, Robyn, 25 million benefit to sales from the accounting change, was that an apples to apples comparison versus your guidance, or should we exclude that if we wanted to kind of compare the results versus guidance?
- CFO & EVP
Thanks, Simona. So in terms of the rules around the revenue recognition, they came into place in October of 2009; and as you could see from our K, we were continuing to evaluate that. What I will say is that in terms of the factors that we look for guidance, the deal that we recorded -- and it was a single customer that generated the 25 million -- it was in the pipeline at the time that we were pulling together our guidance, and it was actually booked and shipped in the quarter. So it isn't revenue that came off the balance sheet. It was actually booked and shipped in the quarter. So --
- Analyst
Okay. So in terms of kind of when you gave guidance, that was something that you had assumed would be recognized in this quarter or not?
- CFO & EVP
It was definitely in the pipeline in terms of one of the factors that we looked at for guidance for the quarter.
- Analyst
Okay. And then a question for Kevin. In terms of the environment on the service provider spending side, it sounds like the US is the strongest region, and even Europe is showing some signs of improvement; but can you give us a little color on the APAC region? It sounds like that's still not picking up; particular, if you can also help us think through the implications from the reduction in CapEx by the major Chinese carriers.
- CEO
Yes. I think as you pointed out from the comments, Simona, the US, we've got good is visibility and feel comfortable with what we see in the pipeline and the growth opportunities there. I think a little color on that, in the first quarter, some of the larger tier one service providers growth or spending was a bit lower consistent with their Q1 spending of a year ago; but a lot of the tier two service providers kicked in, and we've got good visibility on our larger tier ones. Europe was stronger, and we delivered year on year and quarter on quarter growth in Europe. And as you point out, Asia-Pacific -- the comparable on Asia-Pacific, a year ago, we had some significant revenue in Japan, and so we still had a significant amount of revenue but less than we had a year ago in Japan; and then when you look, a lot of Asia-Pacific is in some of the emerging markets or certainly strong GDP growth markets, China and India in particular, and I think we're making some good progress in some of those areas, and we've got work to do in other areas. And so Asia-Pacific I think remains a big opportunity for us.
- Analyst
Thank you.
Operator
Thank you. Our next question is from the line of Tal Liani with Banc of America. Please go ahead.
- analyst
Hi. Thank you. The question I have first of all is about the 25 million. How do we classify it in the quarter -- product services, enterprise and carriers? You said it came from a single customer, so I'm wondering if you can give us a little bit more color there. And then the question I have is about deferred revenues. Can you give us a little bit more color on deferred revenues? It's the second quarter where deferred revenues grow pretty substantially. What areas -- and is it geographical areas or customer segments? Or again, a little bit more color there. Thanks.
- CFO & EVP
Yes, Tal. In terms of 25 million, nearly all of it was product. A very small amount was services, and it was related to a single customer, and actually new business in the quarter. So under the recognition rules, it was -- anything that was booked or any POs that we'd received up until the end of the fourth quarter of last year actually remains under the old rules. It's only new business with customers that were transacted from the first of January onwards that the new rules apply; and what that means in terms of the future feature commitment area is that you still defer an amount of revenue, but the amount is commensurate with the value of those features as opposed to deferring the whole of the revenue amount.
And in terms of the second question around deferred revenue balance, yes, we're pleased with the continued growth there in terms of the deferred revenue. As I just mentioned, anything that was under a deal that was -- we had a purchase order or a contract that the business was transacted prior to the end of last fiscal year is under the old rule. So even if we booked and shipped that in the quarter in Q1, it would still be deferred. In terms of the growth, I mentioned last quarter that it wasn't any one single customer that's driving that growth. It's a nice healthy diversified balance across a few customers.
- analyst
Thank you.
Operator
Thank you. Our next question is from the line of Ehud Gelblum with Morgan Stanley. Please go ahead.
- Analyst
Hi. Thank you very much. I hate keep going on the line of accounting types of things, but it's interesting. So the 25 million that was in pipeline, Robyn -- I'm sorry to keep harping on this one thing -- was that in SLT or IPG? And was that -- how did that impact your margin? Because I'd imagine there was no associated OpEx for that and so it just kind of came through fully -- the full gross margin of that flowed through to your operating margin, and I'm wondering if that is one of the reasons that you came through at a 23% operating margin versus you thought previously a 21, and if that's why going forward you are sort of at a 23, if you can kind of help with us that? And then what is this noncontrolling interest that cost you 1.5 million? Was that an investment in some of your -- some of the $50 million fund that you're starting to invest in, and how should we look is that? Is that a number that's going to grow as you make more investments? Because that was the difference between $0.27, and you would have -- in fact, it seems to have done $0.28 -- the business seems the $0.28, except for that 1.5 million in noncontrolling interest that seems to have nothing to do with Juniper, but just kind of flowed through the first time.
- CFO & EVP
Yes, Ehud. So let me answer the last question first. So in terms of the 1.5 million, that's to do with our equity investment in the joint venture with MSN on solutions that we're delivering on the service provider side, and that's an ongoing investment. We obviously will yield revenue as products come to market through that joint venture. In terms of the margin impact of the 25 million, you do record the costs associated with that and you also record the expenses associated with that. So it's not a windfall in terms of operating margin. In terms of -- I'll give you a little bit more color in terms of the customer profile and where that was. It was a non-US service provider customer, and it was a new deal -- new piece of business with that customer, and it was a service provider customer, and it booked and shipped in the quarter.
- Analyst
Okay. Great. So we should assume that it carried an operating margin very similar -- a 20 to 25% operating margin similar to your regular business and had no operating margin impact at all?
- CFO & EVP
Yes, that would be right, because it would record the expenses the same way, yes.
- Analyst
Okay, terrific. Thank you.
- CFO & EVP
Okay.
Operator
Thank you. Our next question is from the line of Jess Lubert with Wells Fargo Securities. Please go ahead.
- Analyst
Good afternoon. Thank you for taking the question. Just to follow-up on the operating margins, they came in -- looks like they came in much better than the guidance. Can you maybe discuss where you were able to drive leverage versus your expectations? And given your expectations for revenue to improve roughly 4% sequentially at the midpoint of the guidance, why wouldn't operating margins also improve sequentially? Thanks.
- CFO & EVP
Yes. So in terms of the Q1 numbers, the operating margin was slightly higher than we guided to, and it was around the operating expenses. So the team performed very well, and despite the headwinds that we have in Q1 with the FICA reset and the expenses to do with that, and obviously the resetting of bonus and commission plans as a result of the new fiscal year. So the team executed very well. As I mentioned in our guidance commentary, we're obviously very prudent with our expense management across the board. We've done a very good job on our cost structure over the last couple of years, and we will continue to do that as we move forward through the growth that we're seeing. But we do need to invest modestly in incremental sales and marketing areas to make sure that we are capturing the demand opportunity that's out there, and we'll do that prudently; and as I said, we do expect an operating margin for Q2 in that 23 plus or minus a half.
- Analyst
Thanks.
Operator
Thank you. Our next question is from the line of Nikos Theodosopoulos with UBS. Please go ahead.
- Analyst
Yes, thank you. I had a couple of quick ones. You mentioned the book to bill was about one. Can you comment on sequentially what the trend was -- up or down or flat -- on the six month rolling product backlog? And then I guess a question for Kevin on M&A. This is the first -- I mean, it's a small deal -- the Company's done in quite a while, and I know the Company's looked at several things over the last few years. What's your perspective on M&A going into a growth year, and what does this deal indicate for the types of deals the Company may or may not do in the future?
- CEO
Yes. I'll go ahead and take your second question, Nikos, and then hand over to Robyn for your first question. First of all, I think the strategy that we are on in many ways is driven primarily by the organic R&D that we are doing around the platform of Junos, Junos Space and Junos Pulse.
That said, we will complement that organic R&D strategy with strategic acquisitions where they make sense. And in this particular case, the fact that Ankeena had developed intellectual property in an area video that is a significant growth area and it complements edge routing, it made a lot of sense for us to go ahead and move forward with this acquisition -- kind of think of it as a tuck-in acquisition that aligns with our strategy. We will clearly look at other -- and we continue to look at other M&A opportunities that align strategically with the agenda that we've outlined at the analyst meeting and we continue to reinforce, and I think this is just representative of one of those that fit that model. Robyn, you want to take the first question?
- CFO & EVP
Yes. So in terms of the book to bill, Nikos, as I said, it was approximately one. It was just slightly under one under the new revenue rules. So -- but we are very pleased with our underlying demand metrics overall. We saw good activity; and as Kevin mentioned, that activity's continued into the early part of Q2.
- Analyst
So did the product backlog go up or down sequentially? It's hard for me to reconcile that with the deferred revenue changes and everything. I'm just trying to get a sense of how it trended.
- CFO & EVP
Yes, the product backlog itself was very, very marginally down, very slightly. But the deferred revenue is up, so there's -- from my perspective, if you net the two things together, they're actually a very healthy indicator that things are positive from a demand perspective.
- Analyst
Thank you.
Operator
Thank you. Our next question is from the line of Mark Sue with RBC Capital Markets. Please go ahead.
- Analyst
Thank you. I thought we'd bring on the cow since we beat the horse dead. But just on the revenue for next quarter, should we kind of think it as a relative comparison, really 925 million plus or minus 20 million? And what makes the 20 million plus or minus? That seems to be a weird way to explain it. Is it concentrated on one particular customer and revenue rack? And then, Kevin, just kind of how you feel about exceeding 20% top line growth this year?
- CEO
Okay. I'll take the second question, Mark, and I'll give the first question to Robyn. Thanks for the questions. First of all, do we see this as a 20 plus percent growth year? Well, we've delivered Q1 and we have guided for Q2. Our growth in Q1 is 19% year over year, and our guide at 950 plus or minus 20 million at the midpoint is 21% growth year over year. And so if you look at that trend, I think that supports the view that we're growing in that 20% range, and as we complete Q2, we'll offer guidance for Q3. But I think it's very consistent with what we outlined at the analyst meeting in February.
- CFO & EVP
Yes. I think in terms of the 950 plus or minus 20 million, what we're seeing obviously is good demand on the service provider side and the enterprise side. We expect that to continue. We expect a sequential increase in service provider spending, and the differential between the midpoint of the range and the high end of the range is whether or not that spending come in early enough to be recognized in the quarter. In terms of enterprise, we're seeing good year over year and sequential growth even in Q1, and we expect that to continue in Q2.
- Analyst
Thank you.
Operator
Thank you. Our next question is from the line of Ittai Kidron with Oppenheimer. Please go ahead.
- Analyst
Thanks, Robyn. Again, going back to that 25 million -- I'm sorry about that. With regard to the costs associated with this, I can understand how the cost of goods sold gets deferred as well when you defer such revenue, but it doesn't seem like there is OpEx is related to that. Is it fair to say that the operating margin of that 25 million was higher than your corporate average of low 20s? Just a simple yes or no, I would appreciate it.
- CFO & EVP
So I think the answer is no. The operating margin -- you do take the selling expenses into account in terms of the revenue that you recognize. So commission, sales, costs, all of that sort of thing are taken into account when we book that. And so it was no different to other deals of commensurate product that were booked in the quarter.
- Analyst
And with regards to the penny dilution you expect from the acquisition, should we expect that to be a recurring event now for some time? When does the acquisition become dilutive to your earnings?
- CFO & EVP
Yes. So for the Q2, what I said was that it would round up to a penny. It's actually sort of in that $5 million to $6 million range, which rounds up to a penny -- so it would be up to a penny. On an ongoing basis, I'll tell you next quarter. But the first quarter you normally have the integration costs as well as the ongoing R&D that you're assuming with the Company, but I'll give you an update on that as we're integrating the Company next quarter.
- Analyst
Thank you.
Operator
Thank you. Our next question is from the line of Jeff Kvaal with Barclays Capital.
- Analyst
Yes. Thank you very much. Kevin, Robyn, I'm noticing that AT&T is not a 10% customer this quarter; Verizon is. I'm wondering if you could tell us a little bit about some of the dynamics involved there, particularly I know there's a lot of controversy about AT&T and the domain project and what that implies for you folks. Thanks.
- CEO
Yes. Thanks for your question, Jeff. Look, we've got a lot of very important customers. Certainly AT&T is and remains a very important customer of us, and I think when we look at our opportunities going forward we anticipate they're going to continue to be a significant customer for us. And any questions regarding the domain decisions and what they're working on, I'd have to refer you to AT&T; but clearly our focus is on continuing to deliver value and grow our relationship with them.
- Analyst
Should we expect AT&T to be back in the 10% customer roster on maybe even an uneven basis across the year?
- CEO
Well, it's -- in terms of our growth, it's going to be a function of how all of our revenue is growing and enterprise and service providers and the flow of their spending on a quarterly basis. But clearly AT&T is and continues to be an important customer for us.
- Analyst
Okay. So it's right there, whether it's above or below any quarter is hard to predict?
- CEO
They're a significant customer and we're very focused on them.
- Analyst
Okay, got you. Thanks, Kevin.
- CEO
Thanks, Jeff.
Operator
Thank you. Our next question is from the line of Jeff Evenson with Sanford Bernstein. Please go ahead.
- Analyst
In October, you talked at the New York Stock Exchange about your open ecosystem. I'm wondering if you could give us an update on some of the progress in that area and also suggest some maybe external factors that we can look at to judge its success going forward.
- CEO
Yes Thanks for the question, Jeff. I think one of the things that we look at certainly is the number of third parties that have signed software developer kit license agreements with us and are actively building solutions based on Junos, Junos Pulse or Junos Space. And since we've announced that capability, I think now we're now at or slightly above 60 licensees of that software developer kit who are building -- and a high percentage of those are actively building solutions on top of Junos. So I think the two things, maybe a couple metrics to look at. Number one would be as we report the number of third parties that have licensed the SDK and are building solutions on Junos. And the second would be as those partners announce products and solutions that run on Junos, Junos Space or Junos Pulse, that would be indicators of the third-party ecosystem rallying around Junos as a platform.
- Analyst
Roughly how many of the 60 are service providers and what are the types of initiatives that they're taking with the SDK?
- CEO
Well, a small percentage of the 60 would be service providers -- and when I say small, I don't have the specific numbers. But there's a handful of service providers that are doing custom R&D on Junos in support of their strategy and the network services that they deliver to customers. Certainly there are large technology partners, IBM being one that has announced work that they're doing as part of the service provider delivery extensions and some work that we're doing there together with IBM who's innovating on it. And then there's a number of them that are also innovators that from different sized companies that basically are in the business of innovating and creating technology solution to address the needs of network. So there's quite a wide range of innovators that are coming to participate in this Junos as a platform approach.
- Analyst
Thanks.
Operator
Thank you. Our next question is from the line of Samuel Wilson with JMP Securities. Please go ahead.
- Analyst
Good afternoon. Just a question on competitive landscape with HP 3Com closing and Cisco seeming even more aggressive, just want to see on the enterprise side of the business how you see competitive landscape.
- CEO
Yes. Clearly HP, with their ProCurve offering and then recently closing 3Com, obviously they're very focused on the enterprise switching opportunity. The focus that we have really is on the value proposition we have beginning in the data center with what I would characterize as an architectural transition or an architectural disruption that is unfolding in data centers in the way they're architected, where these mega data centers just have massive numbers of servers and storage devices that need to be connected together. And strategically, we have a view that the traditional three tiered architecture is collapsing to two tiers, which we deliver today with our EX product family, and with the Stratus project it will collapse further to a single tier. And in many ways, that architectural disruption is driving a significant amount of dialogue and the design wins that we're getting with many of these large enterprise customers, and I think that's something independent of what else is going on in the competitive landscape. That's a unique aspect that we bring to the table and that is generating a lot of the dialogue and demand that we're engaging on together.
The second area that we're seeing a significant amount of discussion with customers and landmark wins is in the area of branch and access, where customers are looking to consolidate what typically would be multiple network appliances. And so with our low end SRX in the branch, the fact that we could do routing, switching, security in a single system -- single solution -- and with Junos as a platform, we continue to expand the range of solutions that are available that run on that system, and so that, too, is driving demand. So from a competitive approach we're very focused on what we refer to as the new network which is what we believe is a unique approach that dramatically changes the way that customers deploy capital and enable solutions in a way that leads to better economics and better expenses for their users.
- Analyst
Thank you.
Operator
Thank you. Our next is question is from Jason Ader with William Blair. Please go ahead.
- Analyst
Yes, thanks. I just want to continue on the enterprise side. If I'm correct, the revenues in Q4 are up 1% from Q3, and in Q1 it was up 1% from Q4, which is not bad, but I would say maybe a little bit below where I would have expected them to be just given your increased presence and portfolio in the enterprise. So I guess the question is, are you seeing any more pressure out there? And how do you accelerate your growth in share gains in the enterprise market?
- CEO
Yes, I think we continue to see strong demand and dialogue for the value proposition as we enter the enterprise. I think certainly we've done work to increase the -- I'll call it the unaided awareness of Juniper's offerings in the enterprise, recognizing certainly that there's some very significant competitors with big technology names that are also competing in that space. But I think within our enterprise growth sequentially this quarter, we saw an 11% growth in our EX Switch product line selling to the enterprise. You mentioned in Q4 we had a 1% growth in the enterprise, but we saw a 50% growth overall in our EX Switch revenue from Q3 to Q4, and much of that was driven by service providers that were investing in that Switch solution for Managed Services for Enterprise. So at the end of the day, sometimes the revenue - - whether it's through a Managed Services solution or delivered to a non-premise enterprise customer, can get landed in either enterprise or service provider.
But overall, I think that the proposition we have for enterprise data center computing and this new architectural paradigm is unique and it resonates with customers. I think the proposition that we have around Junos and automation through Junos Space allows customers to dramatically reduce the operating expenses associated with networking, and I think when it comes to unique solutions such as branch, we've got an integrated routing switching security platform with the SRX that does well. And going forward you say, you know, what can we do --
- Analyst
Yes. Tactically I want to know.
- CEO
Yes, tactically what do we do to accelerate? Well, I think right now is we have focused on these set of industry verticals to get landmark wins which we are feeding into our marketing campaigns, and you see now that some of the ads that we're running we're highlighting customers who are now running their enterprise networks on Juniper. I think this is an opportunity as we go into Q2. We will increase some of our focus on deeper engagement with the channel, and we're going to put some more resources behind enterprise sales and marketing, really looking at capturing a larger share of this growing opportunity that we see unfolding in the second half of this year.
- Analyst
Okay. Thank you.
Operator
Thank you. Our next question is from the line of Paul Silverstein with Credit Suisse. Please go ahead.
- Analyst
Hi. A clarification and two questions. Can you tell us what the combined contribution of MX, EX and SRX were, similar to what you did last quarter and the quarter before?
- CEO
Robyn's --
- CFO & EVP
I'm just calculating.
- CEO
Just tallying some things, Paul. Just a second here.
- Analyst
Robyn, if it's easier, just tell us the MX number because that's what I'm getting at.
- CFO & EVP
It was up sequentially. I don't have the number in front of me actually.
- VP of IR
(Inaudible).
- CFO & EVP
Yes, so --
- Analyst
I'm sorry?
- CFO & EVP
It was -- sorry, the three of them together?
- CEO
No. MX.
- CFO & EVP
MX was up about 15% sequentially.
- Analyst
MX was up 15% sequentially?
- CFO & EVP
Yes. I don't have the number in front of me.
- Analyst
Okay. You'd given us that number the last two quarters. That's why I asked. The questions are -- I guess I'm trying to understand the operating margin. It looks to me like all the upside was a function of gross margin as opposed to the strong OpEx control that you referenced in your comments. I recognize it wasn't much out of line with what you had projected for us, but that wasn't the source of the upside; it was the gross margin. So the question is, as we look forward, how much of the operating margin upside you're expecting is from OpEx as opposed to the gross margin rebounding back to that 67 plus level where it had been a year plus ago with better revenues?
- CFO & EVP
So gross margins were at about 67.6% for the quarter. They were roughly flat with last quarter, which is what we were expecting. The balance between products and services slightly favored the product side this quarter versus Q4. So it really was -- we were expecting expenses to increase sequentially slightly given the FICA reset and the bonuses, and actually we were able to manage it to a slight decline. So that was principally the difference between the guidance and the results as they yielded. We were very pleased with our ongoing performance on the gross margin side. And as I outlined in the financial analysts meeting, we're still working and continue to work on things in the supply chain and our ongoing activities on the cost side of our gross margin, and we continue to drive for value with our customer set as well.
- Analyst
Robyn, Kevin, one other question, if I might. In your guidance, can you give us any insight -- if you already addressed this, my apologies -- but can you give us any insight into how much of the growth is a function of your traditional carrier routing business as opposed to the newer EX and SRX on the enterprise side?
- CEO
Yes, go ahead, Robyn.
- CFO & EVP
Yes. So Paul, in terms of the 950 of guidance plus or minus 20 million, what we said was that we're expecting the strong increase in sequential enterprise, our momentum that we've had in that area to continue, and we expect an increase in the sequential revenues to deal with service provider. And more specifically, between the top end and the midpoints, or between the 20 million -- between the 950 and 970 -- that's primarily the difference in one level of revenue from service provider and another depending on when -- the timing of when they would bring in those orders, that type of thing.
- CEO
Yes. Let me just add to that. I mean, if you look at the 950 million midpoint on guidance and you sort of model a 2% to 3% upside growth quarter on quarter for SP and 8% to 9% on enterprise, you very quickly get to about the 950. And across the product set, certainly we sell EX products, SRX products and MX routers to service providers, and we sell those products to enterprise customers. I would expect all of those product areas to grow sequentially in that guidance. Now, certainly there's -- the range of plus or minus 20 means there's certainly some upside and some downside depending on timing. Most of that is timing of service provider orders. And so there could be some upside on the 950, depending on the timing of those orders. Likewise, there could be some downside. But if you just model at the mid point of 950, you'll get about a 2% to 3% on service provider, 8% to 9% on enterprise, and that gets you close to the numbers.
- CFO & EVP
Just to follow-up on your first question. product for EX, MX and SRX in the quarter combined with 270 million.
- Analyst
Thank you.
- CFO & EVP
Yes.
Operator
Thank you. Our next question is from the line of John Marchetti with Cowen and Company. Please go ahead.
- Analyst
Thanks very much. At a high level, when you look at what you're starting to come to market with stratus, as that initiative starts to mature, should that drive acceleration in your EX switch sales? Does that sort of pull through as you go through the whole effort of sort of flattening the network? And then looking at that on the opposite side as you talk about all this effort to sort of collapse networks and we look at the carrier market at the high level, do you start to look for ways to do the same on the carrier side? And does that mean you need to get into the access market to be able to do the same on the carrier side going core all the way to edge? Thanks.
- CEO
Yes. Thanks for your questions, John. First of all, I think that any time we've got a strong value proposition -- and certainly the architectural disruption in the data center and really transforming the architecture of data centers of the future, I think that creates product pull across the product line -- not just for the EX, but for our entire portfolio in the enterprise. And I think we're seeing that a bit today as we've seen growth in our MX, SRX and EX product lines in a complete solution focused on enterprise customers. And I think the Stratus project is just going to reinforce that and strengthen that. So the answer to your first question is yes. I think that creates -- if we execute well on that and we've got a strong value proposition, which I believe we do, I think that creates more pull for the overall portfolio of offerings and solutions we have in the enterprise.
Your second question then is do we see this type of consolidation and (inaudible) data centers and things affecting or impacting service providers? And certainly if you look at the architecture of next generation central offices and pops, certainly we think the architectural focus we have to help reduce the cost footprint and help those service providers consolidate some of those assets on a high performance network, that creates opportunity for us, and that opportunity does not require us to get into the access business. That's an opportunity that I think is very complementary to access solutions that they have in place today.
- Analyst
Thank you.
Operator
Thank you. We have time for one last question. Our last question comes from the line of Brian White with Ticonderoga. Please go ahead.
- Analyst
Yes. Kevin, I'm wondering if you can talk a little bit about the OEM agreement with IBM that started in the December quarter, how that's progressing, and also if the Dell OEM agreement is on target for the June quarter? Thank you.
- CEO
Yes. Thanks for your question, Brian. First of all, keep in mind our relationship with IBM, they resell Juniper network systems and they have an OEM version of the system that they can sell as well. And so what I look at is really how are we doing in the combination of what they resell plus the OEM systems that they are selling, and on that total number, we're pleased with this quarter and continued progress with IBM. There's obviously more work that we're working hard together on, but they continue to demonstrate progress in helping enable this route to market. That said, the mix between OEM and resell is not really the relevant issue. It's how we're working closely with the IBM field team and their services organization to deliver the right solution to their customers, and we continue to make progress there.
Certainly we announced, I think last October, the relationship with Dell and the OEM relationship. I think we are working on that, and I think we've got -- made a lot of progress with Dell. I would expect that will be released probably -- it might be the first couple weeks in July, late June-ish, but it's kind of near the end of this quarter, early next quarter that we're on track to enable that offering with Dell.
- Analyst
Okay. Thank you.
- CEO
Thank you.
Operator
Thank you.
- VP of IR
Okay. Go ahead, Manny.
Operator
I was going say let's turn the floor back over to management for any closing comments.
- VP of IR
Thank you so much. We would like to thank you again for joining us today. We look forward to meeting with you at IR events throughout the next couple quarters. I want to call out the fact that we are hosting our annual shareholder meeting here in Sunnyvale on may 12th. Thanks, again, and we look forward to speaking with you soon.
Operator
And ladies and gentlemen, this does conclude today's tell conference. You may disconnect your lines at this time. Thank you for your participation.