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Operator
Greetings and welcome to the Proto Lab's fourth-quarter 2015 earnings conference call.
(Operator Instructions)
As a reminder, this conference is being recorded. It is now my pleasure to introduce your host, Bill Dietrick, Vice President of Marketing for Proto Labs. Please go ahead, sir.
- VP of Marketing
Thank you, Operator, and good morning, everyone. This morning before the market opened Proto Labs issued a press release announcing its fourth-quarter and full-year financial results for the period ended December 31, 2015. The release is available on the Company's website at protolabs.com.
Before we get started during the course of this conference call, the Company will provide financial projections and make other statements about its business that are forward-looking and subject to many risks and uncertainties that could cause actual results to differ materially from expectations. A detailed discussion of the risks and uncertainties that affect the business is contained in the Company's annual report filed on form 10K and other SEC filing, particularly under the heading risk factors. Copies of these filings are available online from the SEC or on the Proto Labs website. The Company's projections and other forward-looking statements are based on factors that are subject to change and therefore these statements speak only as of the date they are given. The Company does not undertake to update any projection or forward-looking statement.
In addition, to supplement the GAAP numbers, we have provided revenue growth on a constant-currency basis for both total revenue and revenue earned through legacy operations, adjusted consolidated statements of operations and adjusted net income and basic and diluted net income per share information on a non-GAAP basis. The non-GAAP adjusted consolidated statements of operations and non-GAAP adjusted net income each exclude the costs of stock compensation, amortization of intangibles, unrealized foreign currency activity and transaction costs and a bargain gain related to the Alphaform acquisition. We believe that these non-GAAP metrics provide meaningful supplemental information, are indicative of our core operating results and are helpful in assessing our historical and future performance. A table reconciling the GAAP information to the non-GAAP information is included in our financial release.
Now I would like to turn the call over to Vicki Holt, President and Chief Executive Officer of Proto Labs. Vicki.
- President & CEO
Good morning, everyone. Thank you for joining us on our fourth-quarter conference call. With me today is John Way, our Chief Financial Officer. The fourth quarter was a strong end to another very good year for Proto Labs.
I will begin today with an overview of the fourth-quarter financial performance and some operational highlights. I will also review some of our key accomplishment in 2015. Then John will provide a more detailed look at our financial performance for the fourth-quarter and full-year 2015.
Following that, we will talk about our priorities for 2016 and offer comments on the financial outlook for the first quarter and full year of 2016. Finally, we will provide information as to our current thinking on our long-term financial targets. After that we will be happy to take your questions.
2015 marked another year of strong growth, illustrating the tremendous value our technology-enabled digital manufacturing model brings to our customers. Proto Labs once again delivered significantly more quality custom parts reliably and quickly to an increasing number of product developers, allowing them to take their ideas from concept through to commercialization faster and more effectively and with less risk.
In the fourth quarter of 2015, Proto Labs generated $74 million in revenue, a 32% increase over the prior year and another quarterly record for the Company. Alphaform the German company we acquired in the fourth quarter, contributed approximately $5.1 million in revenue in Q4. Excluding Alphaform, revenue in the fourth quarter was $68.7 million, an increase of 22.5% year over year.
Foreign currency had a $1.4 million impact on revenue in the quarter. Adjusting for this impact, revenue grew 34% in constant currency, 25% excluding Alphaform. Adjusted net income in the quarter was $13.4 million or $0.50 per diluted share. Alphaform operations generated a loss of approximately $500,000 or $0.02 per share.
The Alphaform performance was slightly better than our initial expectations, driven by favorable revenue in the quarter due to continued orders on a terminated contract during a transition period that will not recur in the first quarter. We saw excellent growth in constant currencies across geographies. Europe, excluding Alphaform, remained strong at 35% growth. Japan grew 54% and revenue in the US was up 22%.
Unique product developers and engineers served continues to be a key metric for our organization, as it represents not only our ability to attract new customers but also captures our penetration of our existing accounts. During the fourth quarter, we served 12,414 product developers. This represented an increase of 21.3% over the prior year.
Looking at revenue by business line on a consolidated basis, injection molding grew 23% year over year to $44 million, setting another quarterly record for this business line. Liquid silicone rubber continues to gain traction we have been very pleased with the growth in its sales. We expect continued strength from injection molding, as new marketing efforts and sales incentive targeted at driving this business are implemented in 2016.
CNC machining increased 19% in the fourth quarter to $19.6 million. The lathe process has been introduced globally. It has been well received by customers and is gaining momentum in the market. We anticipate continued strong growth of this service in 2016.
Finally, 3D printing remains very strong with the legacy business, excluding Alphaform, growing at 69% to $6.6 million in the fourth quarter, reflecting expanded customer awareness of our capabilities and our active cross-selling efforts. Including Alphaform, our 3D printing revenue exceeded $9 million and represented 12% of our consolidated revenue.
There is strong demand for 3D printed parts in Europe. We began with the organic launch of stereolithography services during the third quarter and accelerated the roll-out with the acquisition of Alphaform to offer our full suite of 3D printing services in Europe.
The integration of Alphaform is tracking to plan. During the fourth quarter we completed the training of our combined sales force on our full suite of service offerings. We implemented a manual order interface that allows us to take orders over Proto Labs' website to be fulfilled out of Germany. We've continued our outreach to the Alphaform customer base as well as to new accounts throughout Europe. Customer reaction to date has been positive and we are confident in the enhanced market opportunity.
We will hold off aggressively marketing SLS and DMLS until we've completed further integration with our digital manufacturing model in our new Munich manufacturing site to ensure we continue to meet our brand promise to our customers. And finally, our new team members from Alphaform are fully engaged and excited about Proto Labs' future in Europe.
Innovation is something we enable every day and we continue to seek worthy innovations to support through our Cool Idea Award program. During the fourth quarter there were two recipients.
Echo Laboratories has developed a hybrid microscope called Revolve that merges two different types of microscopes into one and replaces the conventional eyepieces with an iPad. It eliminates the need to purchase two separate instruments, resulting in cost-savings and freeing up lab space for users. Proto Labs Cool Idea Award provided machined aluminum parts for both prototyping and low-volume production for this microscope.
Ascent AeroSystems received a Cool Idea Award for prototype parts for its Sprite, a small durable drone the size of a water bottle. We are very proud of this program and the support Proto Labs provides to further innovation across a range of industries and applications.
I also want to call your attention to a white paper on our website illustrating the tremendous value Proto Labs business model brings to our customers, entitled Lockheed Martin's Small Drone with a Big Spirit. The article describes how Proto Labs' automated design for manufacturability feedback and quoting system accelerated development and commercialization of this new product for Lockheed Martin. We are very proud of the ways we help our customers reach their goals faster and more cost effectively.
I'm also very proud of what the Proto Labs team accomplished in 2015, positioning the Company for further profitable growth. We had another record year of financial results. We generated $264 million in revenue, an increase of 26% from 2014 or 29.6% on a constant-currency basis.
Net income was a record $46.5 million and we reported non-GAAP EPS of $1.97 per share. We generated $58.6 million in cash from operations and ended 2015 with a cash and investment balance of $146 million.
We completed our second acquisition in early October, purchasing Alphaform, a leading 3D printing company in Germany and are on schedule in integrating the operations. We are excited about the opportunity this acquisition provides in terms of expanding our European market presence with an established customer base, excellent workforce and solid manufacturing capabilities in Germany.
Our sales team has been very successful in its cross-selling initiatives. For example, FineLine, the US-based additive manufacturer we purchased in 2014, experienced approximately 20% growth in sales prior to the acquisition. In 2015, we increased the revenue growth in this service by 77%.
New product launches have been very significant and are going well. Sales of liquid silicone rubber, launched in mid 2014, have exceeded our plan. We've introduced lathe process globally and are seeing expanding customer interest.
The introduction of SLA capability in the UK was completed on schedule and is gaining momentum with customers in the UK and Europe. And our launch of SLS and DMLS capabilities was accelerated with our acquisition of Alphaform. The build-out of a new larger facility in Raleigh is on track and will support the continued growth we anticipate in 3D printing.
Our customers value our reliability, quality and speed. In support of our brand promise we added capacity to our manufacturing operations in the form of equipment and labor. In conjunction with this, we also initiated lean process improvement to help drive operating efficiency.
This was a very productive year for the Company and our success is a reflection of the strength, dedication and hard work of the Proto Labs employees. Before I provide more detail on our expectations for 2016, I'll turn the call over to John for further comment on our 2015 financial performance. John?
- CFO
Thank you, Vicki. We continue to produce excellent top-line growth, reporting revenue of $73.8 million in the fourth quarter, an increase of $17.7 million or 31.6% over the same quarter in 2014. Fourth-quarter legacy revenue came from 12,414 unique product developers, a 21% increase over the same quarter of 2014.
Consistent with historical seasonal patterns, the number of product developers in the fourth quarter was relatively flat with the third quarter. Average revenue per product developer increased 3% on a constant currency basis compared to last year. Our unique product developer count does not include Alphaform data, as this information is not available in a comparable quarter.
Gross profit for the quarter was $41.3 million, an increase of $7.7 million over the comparable period for the prior year. Gross margin was 56%. This compares with 59.9% in the fourth quarter of 2014 and 59.4% in the third quarter this year.
Alphaform had a negative 260 basis point impact on our gross margin. Foreign currency exchange rates had a negative impact on gross margin of 90 basis points year over year. The remaining fluctuation reflected additional investments in capacity across our broader portfolio of services to ensure we meet our brand promise.
Our operating expenses were $24.7 million or 33.5% of revenue in the quarter compared with 33.8% in the prior year. Our marketing and sales organization is critical to driving the continued growth of our business. Sales and marketing expense was in line with our previous guidance at $10.8 million or 14.6% of revenue for the quarter.
We invested $4.9 million or 6.6% of revenue in research and development this quarter. Fourth-quarter operating expenses also included transaction costs of $343,000 associated with the Alphaform acquisition. These costs have been added back to adjusted net income in our non-GAAP reporting.
Operating income was $16.6 million in the fourth quarter of 2015 compared to $14.7 million in the same quarter of 2014. On a adjusted non-GAAP basis operating income increased to $18.7 million or 25.3% of revenue compared to $16.1 million or 28.7% of revenue in the prior year.
In addition to the higher-than-anticipated contribution from Alphaform revenue and earnings, we also recorded a bargain purchase gain of $344,000 from the transaction. This gain is the result of the accounting treatment required when acquiring asset had a price below their fair market value. We have not yet finalized our purchase accounting on this transaction. This gain has been adjusted out of our non-GAAP earnings, as it is not derived from our core operations.
Our effective tax rate was 30.2% this quarter, reflecting the benefit of the permanent enactment of the R&D tax credit passed in December. The favorable effective tax rate, driven by the change in tax law resulted in a benefit of $0.01 per share that was not included in our previous guidance.
Net income in the quarter totaled $12 million, resulting in diluted earnings per share of $0.45. Adding back the after-tax costs of stock compensation, amortization of intangibles, the effect of the unrealized losses on foreign currency and adjusting for Alphaform transaction costs and bargain purchase gain, our non-GAAP diluted earnings per share in the quarter were $0.50.
For the full-year 2015, revenue was $264 million, a 26% increase over 2014. Adjusting for the negative foreign currency impact of $7.5 million, revenue growth was 29.6%.
Our operating income for the year was $67.1 million or 25.4% of revenue compared to $60.5 million or 28.9% in 2014. The drivers of the 350-basis point reduction in operating margin include the following: our business required increased investment in marketing and sales to continue to generate our strong growth rates into the future. These investments had 100-basis point impact on our margins.
The Alphaform acquisition had a negative 70 basis point impact on the year. We are confident the acquisition will prove to be a good investment over time, despite its dilution to our financial metrics in the short term. The remaining margin reduction was driven by our gross margins.
In addition to Alphaform, there are several factors that play into the reduction of our year-over-year gross margin percentage, including investments in capacity, foreign currency, investments in building out lean manufacturing processes, launching and scaling new service offerings and dilution from the exceptional growth in our slightly lower margin 3D printing business. We were able to mitigate a portion of these headwinds through productivity improvements in several areas of the business.
Now turning to our cash flow statement. Our capital spending was $44.4 million during 2015 as compared to our prior guidance of $48 million. The lower-than-anticipated capital expenditures related to timing of cash payments associated with our new facility in North Carolina that will be paid in 2016.
Included in the CapEx were investments associated with the Alphaform transaction of $4.7 million and costs associated with the acquisition and build-out of the North Carolina facility of $7.6 million. The balance represents investments in manufacturing equipment across all our services and computer software and hardware to support future growth of our business.
In 2015 we generated cash from operations of $58.6 million. Cash and investments increased $17.3 million during the year to $145.6 million at December 31, 2015.
I would now like to turn the call over to Vicki to begin our discussion of what to expect in 2016.
- President & CEO
Thanks, John. We remain focused on our key strategic priorities for the year that will enable us to continue to expand our position as the world's fastest provider of custom injection molded, CNC machined and 3D printed parts. First, we must fully integrate Alphaform into our operations to ensure we will reliably deliver the customer experience and high-quality parts our customers have come to expect from us.
We will continue to focus on marketing and sales excellence, investing in activities that have proven to be successful in driving our revenue growth and refining strategies to drive sustainable long-term growth. These activities include leveraging our CRM and marketing automation platforms, investing in training and continued evolution of our marketing segmentation approach.
One change related to our marketing efforts that you may have noticed on this call is I have been referring to our business lines by their function versus their brand name. Instead of Protomold, Firstcut and FineLine, Proto Labs provides injection molding, CNC machining and 3D printing services.
We learned through our expanded outreach efforts that the branding was confusing to customers. For example, they asked was Protomold the same as Proto Labs? How does Firstcut relate? As a result, we have made the decision to deemphasize the service brand names to avoid this issue. With a focus on a single brand, Proto Labs, we believe we can more effectively leverage our marketing spend and enhance overall brand awareness.
Moving on to additional 2016 initiatives, we will increase our investment in R&D activities to continue to make advancements in our business. This includes enhancing our customer-facing web capabilities to continue to improve our customer's experience with Proto Labs. We will invest in our manufacturing software to expand our competitive moat and drive further envelope expansions across all our services. We will continue to develop and test new products and processes as part of our Protoworks effort.
One new product offering in our injection molding service that we anticipate introducing in 2016 is overmolding. Overmolding is a process which molds a part made with one material over a part made with a different material. Think of a toothbrush. It has a grip handle made with an elastomeric-type material molded over another rigid plastic like polypropylene. Overmolding, used often in medical, consumer electronics and other consumer products has been one of the envelope expansions our customers have been asking for years. We're very excited to have this technology available to our North American customers by year-end 2016.
Our strong growth in 3D printing and our growth in Japan will require us to add manufacturing facilities in 2016. The North Carolina move will happen in the first half of the year with the Japan move occurring in the second half of the year. These moves require careful coordination to ensure that we continue to deliver real parts, really fast. We have experience with these moves and are confident in our ability to execute.
And finally, we will focus on improving our operational efficiency through implementation of lean process improvement and other continuous improvement efforts. 2016 will be another exciting year for Proto Labs as we expand our capabilities globally to serve more product developers with more custom parts reliably and quickly.
We are very good at executing strategy and this year was no exception and 2016 will be no exception. We will continue to drive profitable growth despite the current economic environment, demonstrating the unique value we provide our customers.
I will turn the call back to John now for a discussion of the financial outlook for 2016.
- CFO
Thanks, Vicki. I would like to begin with some general thoughts on 2016. As a management team, we are focused on driving long-term growth in revenue, earnings and earnings per share. In order to accomplish these long-term goals, we will make investments and other decisions that may impact short-term financial metrics with the ultimate goal of driving sustainable growth in our operating results.
In an effort to align with the majority of your financial models, we will be providing guidance on an adjusted non-GAAP basis. This reporting will not impact how we manage or operate the business. We anticipate continued strong growth in our business, including the contribution from Alphaform. We are targeting revenue growth for 2016 between 25% and 30%.
We anticipate our GAAP operating income as a percentage of revenue to be between 23% and 26% and non-GAAP operating margins to be in the 25% to 28% range. This compares to GAAP operating margins of 25.4% and non-GAAP margins of 28.4% in 2015.
The primary drivers impacting our operating margins include the following: Alphaform will have a negative impact of 100 to 150 basis points on our operating margins. This impact is predominantly reflected in our gross margin line item. As we have stated previously, we expect Alphaform to breakeven in 2016 which impacts our financial metrics but not our operating earnings dollars. As we turn around this business, it will provide a meaningful contribution in future years.
The next driver is research and development. As Vicki noted previously, we will be increasing our research and development expense. These incremental investments will have in approximately 50-basis point impact on operating margins.
We will be expanding our operations in 3D printing and in Japan. These expansions will increase capacity and set us up to support our future growth but will carry greater costs in the short term. Moving facilities while maintaining our delivery requires coordination and will have an impact on productivity during the moves. The impact of these items will be partially mitigated by improved productivity and operational efficiency throughout our business.
Now some additional information to help you with your financial modeling. Due to the dilutive impact of Alphaform, we anticipate gross margins to be in the 56% to 59% range. We anticipate marketing and sales to be in the 14% to 15% of revenue range on a GAAP basis, resulting in 13.5% to 14.5% on a non-GAAP basis.
With the increased investment we expect GAAP R&D to be 7% to 8% of revenue, or 6.5% to 7.5% on a non-GAAP basis. GAAP general and administrative costs will be 10% to 12% of revenue or 9% to 10.5% on a non-GAAP basis.
We currently anticipate approximately $60 million in capital expenditures during 2016. This includes approximately $4 million carryover from 2015 related to the 3D printing facility. The estimate also includes an additional $10 million to $15 million in real estate, including the completion of the North Carolina facility, the Japan facility and potential initial investment associated with the expansion of our European operation at the end of 2016.
Maintenance capital approximates 2% of revenue or $5 million to $7 million. The remaining capital is manufacturing equipment and IT investments to support our growth worldwide.
Now I would like to turn to our expectations for the first quarter of 2016. We currently expect Q1 2016 revenue to be in the range of $72 million to $76 million, representing revenue growth of 23% to 30% over the prior year. This revenue guidance includes an estimated $4.5 million to $5 million related to the acquisition of Alphaform. While we enjoyed the benefits of the nonrecurring revenue in the fourth quarter at Alphaform, we will experience a short-term sequential revenue headwind in Q1 as a result.
We estimate exchange rates will have a $500,000 negative impact compared to the first quarter of 2015. Our Q1 margins will be impacted by costs associated with the building we are vacating in Germany and expenses associated with the continued build-out and move preparation in North Carolina.
We currently estimate our tax rate to be 32.5% in Q1. Stock compensation costs for the quarter will be approximately $1.6 million. Amortization of intangibles related to the FineLine acquisition will be $186,000. Taking into consideration all of the above, including $0.02 to $0.03 per share dilution from Alphaform, we expect our quarterly non-GAAP EPS to be between $0.43 and $0.48 per share.
Finally, I would like to provide a little color on our current thinking about our long-term financial model. A lot has changed in our business since our original target financial model was provided. We have acquired two businesses. We have added several services and we have recognized that we need to invest in our business to continue to achieve the exceptional financial performance this Company has produced.
These investments have impacted our short-term financial metrics but we believe that they were necessary to support our long-term objectives. As a result, we are refreshing our long-term financial targets to align with our expected returns on these investments.
We are moving our revenue growth target to a range. The old target model was approximately 25% annual growth. We remain extremely optimistic about the size and robustness of our markets and the outlook for continued strong growth.
We recognize, however, that the percentage revenue increase will fluctuate, not just quarter over quarter but year over year, particularly as we become larger. Therefore we are revising our annual revenue growth target to a range of 20% to 25%. We expect our GAAP operating income to be in the range of 26% to 29% of revenue and non-GAAP operating margin of 28% to 30%.
Finally, some additional information to help you with your financial modeling. We target gross margins of 58% to 62%, this is an improvement over the current level, as we improve the Alphaform margins and continue to drive operational efficiency in our manufacturing operations. We anticipate marketing and sales to be 13% to 15% of revenue on a GAAP basis, resulting in 12.5% to 14.5% on a non-GAAP basis as we continue to capitalize on the market opportunities in front of us.
We will continue to invest in R&D over the long term to drive our competitive advantage and as a result, we expect GAAP R&D to be 6.5% to 8% of revenue or 6% to 7.5% on a non-GAAP basis. GAAP general and administrative costs will be 9% to 10% of revenue or 8% to 9% on a non-GAAP basis. These modestly revised long-term target ranges demonstrate our continued confidence in Proto Labs' outlook for very strong revenue growth and profitability.
To assist you in better understanding the information just discussed, we have provided slides detailing our 2016 outlook and our long-term financial targets on our website under the investor relations section. That concludes our prepared remarks. Operator, will you now open up the call for questions?
Operator
(Operator Instructions)
Brian Drab, William Blair.
- Analyst
Good morning. Congratulations on a great 2015.
- President & CEO
Thanks, Brian.
- Analyst
Hey, John, did I miss it or did you give a range for EPS for 2016?
- CFO
I did not give a range for EPS. I provided it in the terms of our operating margins.
- Analyst
Okay. And you said for non-GAAP G&A 9% to 10.5%?
- CFO
I want to make sure I'm consistent here. Non-GAAP G&A for 2016, yes, 9% to 10.5%.
- Analyst
Okay. And what was that on a GAAP basis? Because that seems a little bit high.
- CFO
10% to 12% on a GAAP basis. I think what you're seeing there is Alphaform. Alphaform has the majority of their costs from a G&A perspective hit that line. And as we grow into that business, I think there is a little bit of an increase there. That is probably what you are seeing.
- Analyst
Okay, okay, that makes sense. And can you quantify what the revenue was associated with those, sounded like end-of-life orders at Alpha in the fourth quarter?
- President & CEO
As we mentioned earlier when we did the acquisition, there were several contracts that were in place with Alphaform that frankly did not reflect the way we do business. Which is really based on the pricing of the geometry of the part and moving directly with the product developer. We have moved forward to cancel those contracts, renegotiate a different forward-looking position.
But our revenue going forward there is uncertain since it is a complete change in how we interface with those customers. So at this point, it's unlikely that will recur. It's not what I would call hugely significant, but because we hope to be replacing that volume with volume that we will generate from our website and our e-commerce-based business. But we will see an impact in the first quarter as we go through that transition between an old way of doing business and the new digital manufacturing e-commerce web-based approach that Proto Labs uses.
- Analyst
Okay. Is it fair, Vicki, to guess as the -- go ahead, John.
- CFO
To break it out 5.1% is what we recognized in the fourth quarter. I guided to 4.5% to 5%. The majority of the downside of that is those contracts.
- Analyst
Okay. And sorry to bounce around but I'm going to go back to the margin guidance for 2016. If you look the selling and marketing non-GAAP, I believe you said 13.5% to 14.5%, is it fair to assume that as we have lately that we still hover around the high end of that range in 2016?
- CFO
Yes, that's fair.
- Analyst
Okay. And then I'll ask one more question and then pass it on. But on gross margin, how much of -- this is a multi-part question -- how much of the 260 basis point impact from Alpha is transitory or one time in nature? And what gross margin level do you expect the Company to exit 2016 at?
- CFO
I think looking at that 250 to 260 basis point impact that we saw in the fourth quarter will recur at about the same level in Q1 for the full year. We're projecting an impact of 100 to 150 basis points on gross margin from Alphaform.
- President & CEO
We'll continue to see quarter-to-quarter improvement, particularly after Q1. Q1 we have got some additional costs associated with the building that we are exiting there.
But Q2, Q3, Q4 we will see quarter-to-quarter improvement as we begin to put our business model on the Alphaform assets and the great people that we have there. But that will be a transition period that will take us all the way through 2016 and probably well into 2017 with the intention of moving that business to gross margins that are closer to the level of our legacy 3D printing business.
- Analyst
Okay. Is this rough math accurate, or I guess roughly accurate? If you have a 260 basis points impact now, 100, 150 average for the year, is Alphaform like a 50 basis point headwind as -- when we complete 2016, is that the goal?
- CFO
It is probably in the right range as we look at it.
- Analyst
Okay, okay, thanks very much.
Operator
Jim Ricchiuti, Needham & Company.
- Analyst
Thank you, good morning. I just wanted to ask about the target gross margin longer term. Given the pieces of the business and given that the growth that you are seeing in 3D printing, that portion of the business, I wonder if you could help walk us through what might get you to the high end of that margin profile?
- CFO
I think as you look at it -- I think there is a lot of components within there, right? We have launched a number of new services in the last year and those services right now are sub-scale. And as we are growing into them, we have to add capacity. And when you add capacity to service that has lower revenue, it has a greater impact on the short-term margin. So as some of those scale up, we will see some improvements there.
We are also deploying our lean process of improvement initiatives and see some opportunities in that over time. As well as the 3D-printing margins have improved since we acquired FineLine. And we think we can continue to drive that growth there. I think it is just a combination of all of those components that will help us drive improved margins over time.
- Analyst
John, from a structural standpoint, doesn't sound like you see much of a drag longer term from 3D printing and the Alpha business.
- CFO
I think 3D printing will always have a little bit lower margins, as we have experienced. But we have been able to show that we can improve those margins through efficiency in our manufacturing operations. I think they will be --
- President & CEO
Lots of quick turns. There's things that we've done that have improved the margins pretty significantly in the FineLine acquisition. We'll be deploying those same tactics with the European operation. So through our business model, web-based approach, use of quick turns and continued focus on what we're calling Proto-Excellence, which is our operational lean continuous improvement effort, I think we have got margin opportunities across each one of our segments.
- Analyst
Okay, that's helpful. Just switching gears a little bit, was the production parts portion of the business -- can you give us a sense of what that was in the quarter? And given the concern some people have about slowing economic growth, I wonder, do you have any window into what is happening out there as it relates to that part of the business?
- CFO
The split in the production parts versus molds remained pretty consistent in Q4 compared to what it has been historically. The economic challenges are out there, but in our results that we've seen so far, it hasn't really impacted us that much.
- President & CEO
And remember, we play a role in prototyping low-volume production, helping customers commercialize new products they're continuing to innovate. We've got a lot of, actually, tailwinds behind us as manufacturers look to bring new innovative products to market in this period of time. We help them scale those very cost effectively. So our parts business is often part of that continuation between prototyping to testing and then on to commercialization as products launch.
- Analyst
Last question and I'll turn it over. Japan has been obviously a smaller market for you. You are stepping up some investments there. Can you talk a little bit about whether you are thinking about that market has changed at all? Or are these just some necessary investments you have to make?
- President & CEO
We're continuing to grow nicely in Japan. We are completely out of space. We've got no floor space to support what's been really nice growth there. We have continued to invest in our sales and marketing team in Japan, and you are starting to see the results.
Fourth quarter was 54% year-over-year increase, so it was really strong. It's continued investment in a market that has a good number of 3D CAD seats and it represents an opportunity for us to continue to build our number of product developers that we serve and go wide and deep with the customer base we're continuing to grow there.
- Analyst
Okay, thanks. Congrats on the quarter.
- CFO
Thank you.
Operator
Troy Jensen, Piper Jaffray.
- Analyst
Hey, Vicki and John. Congrats on another really strong quarter.
- President & CEO
Thanks, Troy.
- Analyst
So Vicki, just to follow-up on the previous question here. The industrial exposure that you guys have, are you seeing any specific verticals showing some signs of weakness now?
- President & CEO
You know how widespread we are across all the verticals. We service just about every vertical in the whole industrial-production mix. Frankly, we haven't seen any that have shown particular weakness year over year.
What I will say is that with our segmentation approach going a little bit more specific into the medical, the aerospace and the automotive markets, those are growing a little bit faster than our business in general, which is I think the result of a little more targeted approach in those markets. But the others have not really seen any big dip.
Again, I think it is a reflection of where we play in the whole product development life cycle. We are not in those big large mature end uses that might see a decline.
- Analyst
All right, that's fair. And then quickly on new services here. Overmolding, should we think of that as similar to LSR and lathe where the first full year it's low-single digit millions and ramping aggressively over that? And then to that point, is overmolding the service that Brad got everybody excited about, being kind of --
- President & CEO
(Laughter) Let me answer the first one first. Yes, I would think about it just like liquid silicone rubber in that the first few quarters after introduction it takes a while for customers to realize and understand what we are doing and incorporate us into their project planning.
Also, I want to gauge, and this I'm announcing a little bit early, we won't even be soft launching this product until probably early second quarter with a full launch at year end. This year the impact will be every small. But next year we will begin seeing that as customers adopt it. I think customers have been asking for this one for years, so I think our injection-molding customers will be very excited to have an ability to buy prototypes and low-volume production of overmolded products under our model. I think they'll be thrilled.
And I will say that this is one of the ideas that Brad contemplated when he was here. I wouldn't say it's the particular one that he was referencing when he talked about that a couple years ago.
- Analyst
All right, thank you. And then quickly on lathe and LSR, are those in the mid-single digit millions for you guys right now?
- President & CEO
Yes.
- Analyst
All right, perfect. Good luck in -- go ahead, John.
- President & CEO
Lathe's a little bit lower than that but LSR right in there.
- Analyst
All right, perfect. Good luck in 2016.
Operator
(Operator Instructions)
Ben Hearnsberger, Stephens, Inc.
- Analyst
Thanks for taking my question. This is Brandon in for Ben. Just real quick on the revenue per user. I see it grew pretty nicely year over year. Is this really a mix shift that is causing this? I would assume with FineLine growth that may be down a little bit.
- CFO
That is exactly what is causing it, that and foreign currency would be the two big components there.
- Analyst
Got it. And then, if you could, on the three-segment level, your long-term growth rate now op model, what kind of anticipated growth rates does this bake in for all three? Is it assumed 20%-plus in Firstcut, is Protomold going forward? How should we think about that?
- President & CEO
I think the way we really need to look at it is we have a portfolio of services with that product developer right in the center. We're going to supply that developer with injection-molded CNC machining or 3D-printed parts that meet their needs. And the growth rate by service is going to vary quarter to quarter and year over year. I think overall we feel very comfortable with the long-term model of 20% to 25% and this year, 2016, we feel good with the 25% to 30%.
- CFO
Yes, I would look at on a relative basis without giving specific growth rates for each. I think 3D printing will grow faster than the overall average. CNC machining will probably be in that range and the injection molding will be a little bit lower. But generally speaking, I think the combination of all of them will produce the growth ranges we have been providing.
- Analyst
Got it. Thanks for the color there, I appreciate it.
Operator
Bobby Burleson, Canaccord Genuity.
- Analyst
Hey, guys, thanks for taking my questions.
- President & CEO
Hi, Bobby.
- Analyst
Hi. Going back to your strategic initiatives, can you update us on the progress of the first of those initiatives, specifically it was the -- just wondering what the early results are coming out of the vertical market segmentation. And then also new customer acquisition. You guys are also trying to focus a little bit more on strategic customers. So wondering, early results that you're seeing there over the last year.
- President & CEO
The segmented approach to the market is really we call it is more of an evolution than a revolution. Just flip a switch. Initial focus has been taking a look at a couple of industry verticals that our business model really resonates with, where speed is important, where there's a lot of iterations and we bring a lot of value. So that would be medical, aerospace and automotive.
We're doing that with very tailored messaging, speaking the language of the industry and equipping our sales team with specific industry-specific talking tracks as they deal with customers and speak with them about their programs. And the early success has been -- growth in those segment has been a little bit higher than our average, so we are pleased with it. We're really in the early innings of segmentation and learning a lot about what works and doesn't work and continue to evolve it. But we're pleased with it and I think it's going to bring results.
In terms of strategic selling, we're continuing with training to develop strategic selling skills among our sales force. The growth in the number of larger customers continues to grow, so we get more and more companies who do $0.5 million more with us. So that means we're going wide and deep and continuing to build those more strategic partnerships. So that is going well. Again, those are two elements that are driving the nice growth rates and the results that you've seen.
- Analyst
Great. On the overmolding that gets soft launch early Q2, full launch end of this year, have you guys identified an overall TAM or the specific piece of the TAM that you guys can address?
- President & CEO
It really is hard to get that pinpointed in our space to really understand what portion of the overmolding market we're really -- to get that good size of what is overmolded and then also what portion is really relevant to our TAM. It is an important segment within injection molding. You know that the TAM that we've got out there in injection molding is almost a $4 billion -- I think it's a $3.8 billion TAM for injection molding. And I certainly think this is one of the envelope expansions that helps us with that.
- Analyst
Okay, great. The last piece of this is that 20% to 25% long-term growth. When we think about whether or not, given yours at the high end or the low end, do you see that mainly as a function of strength for your core Protomold business, how that performs in the year? Or is it really uncertainty about how sustainable these really high-growth rates are for 3D printing? What are the main dials that could push you to the high end or low end of that range?
- President & CEO
I think it could be -- again the variability that we have week to week and month to month in demand is pretty high. So it really could be all the services hitting and we have a really nice growth rate in that 25%-plus that could drive that. It reflects the variability in our business. The difficulty that we have in actually pinpointing it quarter to quarter -- we have a seven-day backlog in [pub] orders, so there will be variability. They're an on-demand manufacturer. Does that help?
- Analyst
Great, thank you. Yes, very helpful.
- President & CEO
Okay, thank you.
Operator
Thank you. We have reached the end of our question-and-answer session. I would like to turn the floor back over to Management for any further or closing comments.
- President & CEO
Thank you for joining us today. We are proud of the results we've generated in 2015 and we look forward to continuing our success in 2016. Once again, I would like to thank you all for being here today and I want to thank our employees for their outstanding performance. We look forward to updating you next quarter. Thank you.
Operator
Thank you. That does conclude today's teleconference. You may disconnect your lines at this time and have a wonderful day. We thank you for your participation today.