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Operator
Good afternoon.
My name is Celosia, and I will be your conference operator today.
At this time, I would like to welcome everyone to the Second Quarter 2018 Discover Financial Services Earnings Conference Call.
(Operator Instructions) Thank you.
I will now turn the call over to Mr. Craig Streem, Head of Investor Relations.
Please go ahead.
Craig A. Streem - VP of IR
Thank you, Celosia.
Welcome, everyone, to our call this afternoon.
As always, I'll begin on Slide 2 of our earnings presentation, which you can find in the Financial Section of our Investor Relations website, investorrelations.discover.com.
Our discussion today contains certain forward-looking statements about the company's future financial performance and business prospects, which are subject to risks and uncertainties and speak only as of today.
Factors that could cause actual results to differ materially from these forward-looking statements are set forth within today's earnings press release, which was provided to the SEC in an 8-K report and in our 10-K in first quarter 10-Q, which are on our website and on file with the SEC.
In the second quarter 2018 earnings materials, we've provided information that compares and reconciles the company's non-GAAP financial measures with GAAP financial information, and we also explained why these measures are useful to management and investors.
We urge you to review that information in conjunction with today's call.
Our call will include remarks from David Nelms, our Chairman and Chief Executive Officer, covering second quarter highlights and developments; and then Mark Graf, our Chief Financial Officer will take you through the rest of the earnings presentation.
And then as Celosia said, we will have time for Q&As following the formal comments.
(Operator Instructions)
Now it's my pleasure to turn the call over to David.
David W. Nelms - Chairman & CEO
Thanks, Craig, and thanks to our listeners for joining today's call.
In our second quarter, we earned $669 million after tax or $1.91 per share, generating the return on equity of 25%.
This performance reflects a simple strategy: Focus on the customer, maintain a disciplined approach to credit and invest for long-term profitable growth.
And as you can see from our results, effective execution of this strategy continues to generate outstanding returns.
These returns primarily reflect strong revenue growth, which itself is a function of outstanding receivables growth, particularly in the card business.
Over time, we've invested in brand advertising, in marketing analytics, in superior service and in enhancements to our rewards offerings.
And together, these investments continue to drive profitable loan and revenue growth from a balanced mix of new accounts and existing card holders.
Turning to our other lending products.
In student loans, we are just entering the peak season and early origination activity looks good, and it's consistent with our internal projections.
In personal loans, competition continues to intensify.
Just to illustrate, the industry set more direct mail for personal loans in the first half of this year than it set for credit cards.
And industry pricing and credit standards seemed to be focused more on near-term growth than long-term returns.
As a result, we are continuing to cut back on origination activity as we see less opportunity for profitable growth in this portfolio in the near term.
In fact, we expect personal loans receivables to be flat to potentially down over the second half of this year.
Turning to credit.
Performance remains strong with charge-offs flat and delinquencies down 15 basis points on a sequential basis.
This reflects a number of factors: first, we've maintained our disciplined approach to underwriting.
Second, we've seen meaningful benefit from our investments in advanced analytics, modeling and machine learning.
And finally, the strength of the U.S. economy has certainly helped.
In addition to our Direct Banking business, in Payment Services, good business momentum drove a 14% increase in volume and an 11% increase in income before tax on a year-over-year basis.
During the quarter, we returned $656 million of capital through dividends and share repurchases and have raised our quarterly common stock dividend by another $0.05 or 14%.
In summary, this was another very solid quarter led by the terrific performance of our card business.
Looking in at our -- at the economic environment for prime consumers, all indications suggest that economic conditions remain favorable.
Overall, we feel very good about our ability to continue to generate strong risk-adjusted returns with a continued tailwind from the economy, enhancing our ability to deliver profitable growth.
I'll now ask Mark to discuss our financial results in more detail.
Mark?
R. Mark Graf - Executive VP & CFO
Thanks, David, and good afternoon to everyone.
I'll begin by addressing our summary of financial results on Slide 4.
Looking at key elements of the income statement.
Revenue growth of 8% this quarter was driven primarily by strong loan growth.
The increase in provision was largely consistent with ongoing supply-driven normalization in the consumer credit industry as well as the seasoning of loan growth.
Operating expenses rose 8% year-over-year as a result of the investments David alluded to, in support of growth and new capabilities.
Turning to Slide 5. Total loans increased 9% over the prior year, led by 10% growth in credit card receivables.
Growth in standard merchandise balances drove much of this increase, spurred by accelerating sales growth.
Promotional balances were a modest contributor to our strong performance, although balance transfer volume came in above our expectations for the quarter.
Looking forward, we expect balance transfer activity to slow and for the mix of promotional balances in the portfolio to gradually decline.
Looking at our other primary lending products.
Year-over-year growth in personal loans was 5%, and as David said, originations are expected to continue to slow.
Private student loan balances rose 2% in aggregate, but our organic portfolio increased 10% year-over-year.
Moving to the results from our payment segment.
On the right-hand side of Slide 5, you can see the proprietary volume rose 9% year-over-year, up from 8% last quarter.
This increase was driven by 2 primary factors: first, a high level of customer engagement with our 5% category, which was supermarkets this quarter; and second, higher gas prices.
In our Payment Services segment, PULSE volume growth was once again strong this quarter with 14% higher volume compared to the prior year, driven by both new issuers as well as incremental volume from existing issuers.
Diners Club volume rose 8% from the prior year on strength from newer franchises.
And Network Partners volume increased 33%, driven by AribaPay volume.
Moving to revenue on Slide 6. Net interest income increased $191 million or 10% from a year ago, driven by a combination of higher loan balances and higher market rates.
Total noninterest income was down $7 million due to a decline in net discount and interchange revenue.
Gross discount and interchange revenue grew in line with sales, but higher rewards costs more than offset that impact due to higher customer engagement in the 5% promotional rewards category.
As I mentioned earlier, this was driven by our decision to feature groceries this quarter.
We remain comfortable with our expectation for the rewards rate for the year.
As shown on Slide 7, our net interest margin rose 10 basis points from the prior year and was down 2 basis points sequentially, ending the quarter at 10.21%.
Relative to the second quarter of last year, the net benefit of a higher prime rate and a favorable shift in funding mix were partially offset by an increase in promotional balances and higher interest charge-offs.
Relative to this year's first quarter, the net benefit of a higher prime rate was more than offset by strong engagement on the part of transactors and higher promotional balances, which as I noted earlier, are expected to decline as a percentage of the portfolio over the remainder of the year.
On balance, we remain comfortable with our outlook for net interest margin for the full year.
Total loan yield increased 30 basis points from a year ago to 12.28% as a result of a 22-basis-point increase in card yield and a 60-basis-point increase in private student loan yield.
Prime rate increases and a modest increase in the revolve rate led card yields higher, partially offset by the impact of somewhat larger promotional balances and higher charge-offs.
Higher short-term interest rates drove the increase in student loan yields where about 60% of the organic portfolio is variable rate in nature.
On the liability side of the balance sheet, consumer deposits grew faster than loans at 12%, up 2 points sequentially.
Consumer deposit rates rose during the quarter, increasing 12 basis points sequentially and 42 basis points year-over-year.
Deposit betas have continued to rise, but at this point, remain below our cycle to date expectations.
Turning to Slide 8. Operating expenses rose $72 million from the prior year.
Employee compensation and benefits was higher, the result of increased technology and volume-related headcount to support business growth as well as higher average salaries.
Marketing expenses were up as a result of greater investment in account acquisition and increased brand advertising.
Information processing costs increased due to investments in infrastructure as well as analytic capabilities.
We remain comfortable with our operating expense guidance for the full year.
I'll now discuss credit results on Slide 9. Total net charge-off rates rose 40 basis points from the prior year and 2 basis points sequentially.
As we've talked about over the last year or so, supply-driven credit normalization, along with the seasoning of loan growth in the past few years, have been the primary drivers of the year-over-year increase in charge-offs.
Credit card net charge-offs rose 40 basis points year-over-year.
However, from a sequential perspective, this quarter represented the third consecutive quarter of slowing year-over-year increases in card charge-offs.
In addition, delinquency formation slowed.
The credit card 30-plus delinquency rate was up 16 basis points year-over-year, but down 17 basis points sequentially.
Private student loan net charge-offs rose 7 basis points year-over-year and were flat sequentially.
Personal loan net charge-offs increased 79 basis points from the prior year, but fell 6 basis points sequentially.
The 30-plus delinquency rate was up 28 basis points year-over-year and 5 basis points sequentially.
Taking into account the delinquency trends as well as the competitive conditions, we have chosen to slow personal loan originations, as David noted earlier.
Looking at capital on Slide 10.
Our common equity Tier 1 ratio decreased 30 basis points sequentially as loan balances grew.
Our payout ratio for the last 12 months was 118%.
On June 28, in conjunction with our seat of our CCAR nonobjection, we announced our capital plan for the 4 quarters ending June 30, 2019.
Specifically, we disclosed plan share repurchases of $1.85 billion over the next 4 quarters as well as a $0.05 per share increase in our quarterly common stock dividend.
We remain focused on efficiently deploying our shareholders capital by driving profitable and disciplined asset growth and returning excess capital via dividends and share repurchases.
To sum up the quarter on Slide 11, we generated 9% total loan growth and a 25% return on equity.
Our consumer deposit business also boasted robust growth of 12%, while deposit rates increased 42 basis points year-over-year.
With a respect to credit, while our charge-off rates have risen as credit conditions normalize in loan growth seasons, performance remains consistent with both our expectations and our return targets.
And we're continuing to execute on our capital plan with strong loan growth and a leading payout ratio helping to bring our capital ratio closer to target levels.
In conclusion, we're pleased with our performance this quarter and are confident in our outlook for the balance of the year.
That concludes our formal remarks.
So now I'll turn the call back to our operator, Celosia, to open the line for Q&A.
Operator
(Operator Instructions) We will take our first question from Sanjay Sakhrani with Keefe, Bruyette, & Woods.
Sanjay Harkishin Sakhrani - MD
David or Mark, maybe you could talk about the personal loan product and your decision to slow it down.
What's the nature of the competition entering the market?
Is it kind of the fintech players?
Or is it more traditional players?
And how do you envision it playing out in terms of getting back in if you wanted to?
David W. Nelms - Chairman & CEO
Well, first, we're not in any way exiting that business.
It's a great business and we basically need to pull back the growth to maintain our returns, but we're still putting on new accounts, just probably will be fewer than needed to replace attrition by the end of this year.
And I would say that a lot of it is fintechs.
I don't know -- I guess, you'd call Goldman.
I don't know if you really called him a fintech, but you've got some people like them that haven't traditionally been in the business that are also entering.
It is, by far, the easiest product to enter.
A lot easier than credit cards or student loans.
And we have seen this in past cycles where people enter and a lot of times, a crisis sort of things -- a credit cycle sorts things out.
But I would just say that mainly these new entrants have produced, as I mentioned, more direct mail in the first half of this year in credit cards and that market is about 15% the size of credit cards.
So there is a lot going out there, and that impacts cost per account.
But it also, the availability of credit will grew impact credit.
And so to maintain our discipline, we need to selectively tighten and be more selective on how we are marketing.
R. Mark Graf - Executive VP & CFO
Sanjay, I'd just add to that.
I mean, we've been pretty consistent all along in saying global domination in this business has never made sense, right?
It's a business where discipline and humility matter a great deal and risk-adjusted returns rule the way we think about things at Discover.
So it's just time to feather the accelerator a little bit.
Sanjay Harkishin Sakhrani - MD
Appreciate that.
I guess my follow-up question is, obviously, you've -- I am sure, you've seen today's announcement of Walmart, sort of, switching issuers.
I'm curious if you have any updated views on the private-label space or even the co-brand space if the -- if an opportunity presented itself.
Maybe you could talk about your appetite to get into that market.
And then also, how the backdrop is with the BSA/AML issue in terms of making a deal of any sort?
David W. Nelms - Chairman & CEO
Yes, I think -- while the private-label business, I think could fit strategically.
I think the entry paths are limited, and I think it's probably unlikely for us, at least in the near term.
What was your second question?
R. Mark Graf - Executive VP & CFO
Co-brand.
David W. Nelms - Chairman & CEO
The co-brands?
Co-brands, one of the things we have is the Discover brand.
We are not issuing Visa MasterCards.
We have differentiation.
We have leading service.
And frankly, optimizing and extending Discover branded products, I think, has shown to produce the highest returns and we're also outgrowing at the moment all those people who actually have co-brand programs.
Operator
Your next question comes from the line of Don Fandetti with Wells Fargo.
Donald James Fandetti - Senior Analyst
Mark, just want to talk a little bit more about the NIM.
I know it looks like you came in a little bit lower than expected around some promo activity, but you're keeping the full year guidance.
I mean, it implies a nice uptick.
I guess wanted just, kind of, get a sense of your confidence there, just given that it can be so variable based on the mix of the portfolio.
R. Mark Graf - Executive VP & CFO
Yes, absolutely.
I would say, Don, maybe the right place to start is a quick walk to Q1.
So if you think about the benefit of the Fed rate increase, we saw go through there.
Just on a pure rate -- per rate basis point, that was a 10-basis-point good guy in the quarter to NIM.
We'd had 12 basis points of bad guys that were essentially half and half.
BT and promo mix in the portfolio coming in higher than we thought it would be.
And then a real uptick in transactor volume, which obviously is a good guy on the gross interchange side of the equation and the sales growth side of the equation.
So maybe dilutive to margin in that regard, but obviously a good guy elsewhere on the income statement.
Got really good visibility into the BT and the promo mix.
Already see that coming down, so very comfortable there.
Promos, right now, are about 21% of the book roughly.
And we see that declining over the remainder of the year pretty significantly.
So again, feel good about that.
Transactor volume is obviously the wildcard.
If we continue to see a stronger level of transactor engagement that could mute it somewhat, but it would still make its way into the range that we've set out for the full year.
Operator
Your next question comes from the line of Ryan Nash with Goldman Sachs.
Ryan Matthew Nash - MD
Mark, maybe just picking up on the back of that last question.
Just given your expectations for promos to come down from the 21% level, do you have any thoughts on what that could mean for loan growth?
And David, as a follow-up to that, can you just maybe talk about what you're seeing in the competitive environment for loan growth?
Are you seeing any changes to competitive behavior?
And what do you think it means for loan growth at this point in the cycle?
R. Mark Graf - Executive VP & CFO
So from my perspective, Ryan, I'd say, we continue to feel good about that 7% to 9% range we've talked about for total loan growth for the year.
Card, obviously, came in above that range.
It came in at 10% this quarter, although down somewhat, still rounded to 10%, but down somewhat from where it was last quarter.
Obviously, with a little less BT and promo volume, we would expect to see some slowing in card loan growth there as we go on through the course of the year.
And that's reflected not only in the -- our NIM thoughts for the year, but also our overall financial outlook for the year at this point as well.
David W. Nelms - Chairman & CEO
And I would say the competitive environment has been -- is pretty stable compared to the last 2 quarters.
It's still well-off.
It's, I guess, brought the year stage from a year, 1.5 years ago.
And I think, generally, I've seen most of the prime competitors just maybe slowing loan growth to low single digits if you take out any acquisitions that they might have had.
And sales growth pretty close to where we are, maybe a touch higher.
But this quarter, we -- our sales growth really moved up quite a bit, and we are right there with the other guys on sales.
And I think generally, people -- my take is people started seeing higher rewards cost a year ago and most recently, and started making some adjustments.
So we have seen some tapering off of some of the most aggressive rewards programs.
We've seen some taping off of marketing spend and volumes, and that has really helped us with some cost per accounts that look really attractive and our ability to maintain a pretty stable rewards rate and good -- stable pricing, but still growing faster.
Ryan Matthew Nash - MD
Got it.
And then maybe if I could squeeze in one follow-up on credits.
Mark, you highlighted second derivative improvement in card.
It looks like most products in terms of year-over-year you're seeing better loss rates.
So I can just -- I was just hoping you can maybe talk about what you're seeing from the customer base from a credit perspective.
David, you alluded to this in your opening remarks.
We've heard from a handful of companies, other consumer lenders that severity of loss is improving, given that customers are in a little bit better shape.
I was just wondering if you are seeing the same thing.
And given the improvement that you're seeing, can you talk about what it means for your outlook for charge-offs, could we end up being on the low end of that 3% to 3.25%?
R. Mark Graf - Executive VP & CFO
While end there, Ryan?
Try to touch on all of it.
I guess I would say, first and foremost, we continue to see quarter-over-quarter a -- what I guess, I would call a lessening of the slope of the normalization curve for 3 conservative quarters now, which -- in the card space, which feels very good.
This quarter, about 50% of the reserve build was driven by the front book, about 50% was driven by the back book.
That's a lesser percentage off the back book, which I tell you we, again, see the pace -- saw the pace of that normalization in the quarter continuing to mute.
I'm not ready to declare a seminal change at this point in time, based upon 1 quarter's trajectory.
But at the end of the day, clearly in the quarter, we saw improvement in the consumer's ability to service their debt.
Overall, macro factors continue to feel good.
Leverage is manageable on the part of the consumer.
Unemployment is strong.
You've got strong consumer confidence.
So the environment feels pretty good.
We are very confident in that 3% to 3.25% range we put out there for charge-offs on a full year basis.
Operator
Your next question comes from the line of Mark DeVries with Barclays.
Mark C. DeVries - Director & Senior Research Analyst
I had a follow-up question on credit.
I think, Mark, last call you alluded to potential benefits you are seeing from tax cuts.
I'm wondering if you still see signs of that.
And if so, also, whether you expect maybe you have a bigger impact towards the beginning of next year when refunds come in as opposed to what comes through just as a result of improved withholdings?
R. Mark Graf - Executive VP & CFO
Yes, so we did -- Mark, you're right.
We did see a coincidence improvement in credit along with the -- at the same time when payroll processors changed their withholding levels.
Can't prove causality there, but there was clearly a coincidence change.
Since that point in time, though, we think that produced about $100 in the pockets of our average customer, give or take.
Since that point in time, though, we've seen gas prices creep back up that would theoretically have eaten into that.
So it's a little unclear exactly what the net impact of tax reform is at this point.
I'm clearly not a bad guy in and of itself in isolation, but it's a little unclear how much of a good guy it is.
The overall improvement we're seeing in terms of that, again, that muting of the pace of growth in that normalization curve on the back boat -- back book would lead me to conclude that something more than $100 in the pockets of every individual consumer that's driving that.
But I would say tax definitely belongs as one of the good guys on the list.
In terms of what the refund scenario could look like at the beginning of next year.
Candidly, I don't think we spend a lot of time noodling over that one right now, but it's something good for us to think about as we move forward.
Mark C. DeVries - Director & Senior Research Analyst
Okay, great.
Just a question on the optics of delinquencies and charge-offs in the personnel loan portfolio, as you actually potentially shrink that in the coming quarters, and obviously, aren't adding as many receivables that are at the very early stages of their seasoning and don't have delinquency.
Should we expect that to kind of tick up in the coming quarters?
R. Mark Graf - Executive VP & CFO
Absolutely.
You will see a denominator effect, Mark, as that -- pig comes through the snake, that lapping of the slowing of the growth.
So I would expect charge-offs in that book to continue to rise from where they are right now.
You will have seasoning of the vintages we have booked.
You'll have the normalization that still continues that we just got done talking about in the card space, but clearly applies here as well.
You will have the effect of slowing growth from the subsegments we exited that we talked about over the course of the last couple of quarters.
And then you'll have the incremental effect of the pull-back we are doing here.
So the ultimate dollars of losses we take won't be any higher.
But because you won't be bringing on as many new accounts, that denominator effect will kick in and you'll see the loss rate pick up.
Operator
Your next question comes from the line of Eric Wasserstrom with UBS.
Eric Edmund Wasserstrom - MD & Consumer Finance Analyst
I just wanted to circle back on that issue of debt service.
Mark, you just pointed out, but there's been certainly some benefit to the consumer tax reform and then the wage growth we've seen.
But when we look at the aggregate data, we also see that leverage seems to be growing faster than disposable income.
So how do you think about that, particularly with respect to the fact that I think half your growth comes from your existing customer base?
So presumably, you're contributing to that growth in leverage.
Do you feel that there is an embedded credit risk there that's being fully acknowledged?
R. Mark Graf - Executive VP & CFO
Yes, I think, right now, as we look, Erick, we see the consumers' level of leverage in our book as measured by debt-to-income really coming back toward the levels it was at prior to the crisis, right?
So it's -- just call it normalization, but the nature of that leverage has changed pretty dramatically.
Prior to the crisis, the vast majority was variable rate in nature and was housed in an arm.
So as rates were rising, that consumer had a real double whammy and came under a significant degree of stress.
Today, less than 10% of the consumer debt out there is variable rate.
So you've got fixed rate and most of the growth has been -- that we've seen of recent years too has been really in fixed rate product.
It's been in federal student loans, it's been in auto loans, it's been in personal loans.
So it feels like the levels of leverage are kind of really returning to more normal levels, but that the composition of that leverage feels a little bit healthier than we saw before.
But clearly, that has been what's been driving the normalization that we've been experiencing along with all the other issuers in the back book.
We are not seeing big movements in incidence rates.
It's up a little, but we are not seeing big movements in incidence rates.
It's really severities that are up and that's just because when people go bad, they are carrying more debt and the losses that all the lenders take are bigger.
Eric Edmund Wasserstrom - MD & Consumer Finance Analyst
Sure.
And if I can just follow up one question on deposit pricing.
I think you indicated 31 basis points in the quarter, which looks to be about what effective Fed funds rate moved in the quarter.
So I know you are well below the -- through the cycle average, but how do we think about the marginal cost of deposit pricing from here and as it relates to your net interest margin?
R. Mark Graf - Executive VP & CFO
Yes, so the marginal beta was 10 basis points that we saw on the last Fed move.
The cumulative beta thus far, since rates have started rising has been 46.
So continue to feel good about that.
There has been a high degree of variability in terms of -- I think with the excess liquidity the Fed pumped into the system with their QE and the tapering hasn't gone on long enough now.
You still have an excess of deposits kind of kicking around in the system a little bit.
And that's made the path of normalization in beta a little bit lumpier than it would have otherwise been.
But -- because we've seen betas on some rate moves as high as 80.
Again, the beta on the most recent move was 10 bps and cumulatively, we are sitting at a 46 since rates started to rise.
So we feel really good about that, and we think that a big chunk of that performance is tied to the fact that 60% of those depositors have got a relationship with us on the asset side of the balance sheet.
Operator
Your next question comes from the line of Rick Shane with JPMorgan.
Richard Barry Shane - Senior Equity Analyst
Mark, we definitely see what you're pointing out in terms of the trends on delinquencies and charge-offs starting to flatten out and I think one of the other trends that's emerging is normal seasonality is reemerging into the numbers.
As this occurs, I'm curious, will we see the year-over-year provision expense start to converge back towards asset growth?
R. Mark Graf - Executive VP & CFO
Yes, probably a step further than I'm prepared to go at this point in time would be the honest answer, Rick.
Not ready to declare victory on that point yet.
We've had a couple of quarters watching that normalization flatten, we've had a couple of quarters where normal seasonality seems to be occurring so I agree with all your data points.
Just not quite ready to make that call at this point in time.
But we do feel very good and constructive about the credit environment, and we're hopeful that we actually do get comfortable making that call at some point here.
Richard Barry Shane - Senior Equity Analyst
Okay.
So perhaps asking the question in a slightly different way.
Unlikely at this point that the reserve rate will continue to rise in the way that it has over the last year started to flatten -- or sort of started to stabilize the last couple of quarters?
R. Mark Graf - Executive VP & CFO
Yes, I would say that we set the reserves on a quarterly basis and we set them based on what we see emerge in the course of that quarter in terms of 12-month forward-looking losses.
So we're too early in the quarter this year for me to be able to sit back and prognosticate on exactly what that's going to look like.
I would be so bold as to say we continue to see that flattening that we talked about earlier continue thus far in the quarter.
So that's obviously a positive indicator, but reserves will set once we have the benefit of a lot more information as the quarter moves on.
Operator
Your next question comes from the line of Bob Napoli with William Blair.
Robert Paul Napoli - Partner and Co-Group Head of Financial Services & Technology
Solid quarter and you guys have been delivering solid numbers now for years.
It's been somewhat hidden as, I guess, I think Rick was getting into, the growth that had built up in provisions and it looks like credit losses are stabilizing.
And I know, Mark, you're not ready to make that call on credit.
But just as we look out, you've had -- essentially this company has had pretax income of $3.6 billion for 5 years in a row and it looks like you're ready to accelerate.
And you've reduced the share count dramatically.
So the combination of growing earnings and reducing share count, I guess, is what the market is looking for to improve your multiple.
But as we look out over the next few years, David, what is the model for this company?
Is it loan growth and operating efficiency is great, but can it improve?
How much should it improve?
I think technology is allowing improvement.
Do you expect loan growth 6% to 8%?
Should pretax earnings grow with 10% over the medium to long term?
What is the business model for Discover?
And what's going to drive those -- that growth?
David W. Nelms - Chairman & CEO
Well, I would say that we will continue to focus on trying to grow revenues faster than expenses.
And for a number of years, we've been having very nice revenue growth, but normalization pushes back against the PBT growth and yet we're earning very high returns, so a lot of the EPS growth has come from buybacks.
And if at some point, this -- the normalization slows, that would be what should allow us to then start growing PBT again.
But we're not providing guidance at this point, so I don't want to get into specific targets.
But I think it does feel -- I guess, one thing I would say is that our total asset base is much larger today than it was 5 years ago.
And so essentially, we've maintained a PBT while the ROA has gradually come down.
I think that's very healthy because I think a few years ago we were probably over earning.
We had a maybe an unsustainably high ROA if you look at the very long-term potential in a card business.
And so I think we're now starting off with a more reasonable ROA, and if we can then kind of get to a point where we maintain that ROA, but continue to grow our loans, that then translates into PBT growth.
Robert Paul Napoli - Partner and Co-Group Head of Financial Services & Technology
And I guess, that makes sense.
When you're -- will you revisit?
I mean, at one point, you had given targets and I think your last Investor Day and before that you had given longer-term targets.
Any thoughts of putting out longer-term targets or raising your ROE target?
R. Mark Graf - Executive VP & CFO
Bob, I would say on that front, that's something we evaluate every year and think about every year.
But those are really meant to be through the cycle guides as opposed to annual guides.
I just kind of -- I'd echo David's comments that the EPS drivers really are going to be, in this business, it's loan growth, it's NIM, it's expense management, it's capital management and it's underwriting, better performance, right?
Those are going to be the key levers.
And I appreciate in your question, given the way you asked it, because you're right, we focus on long-term value creation and those drivers that we control.
And we're not -- at Discover, we're really not going to get caught up in what folks are looking for this quarter or next quarter.
We're going run the compound shareholder value over the long haul.
David W. Nelms - Chairman & CEO
And Bob, one thing I would just add, we were just looking at some returns back from when we spun off, and our EPS over the year up till last year was 18% compounded EPS growth.
But essentially, it all came the first 4 year -- or there was a huge jump in the first couple of years.
That's when we had the huge jump in PBT.
But after the crisis, we had some big reserve releases, which gradually diminished.
That in turn gradually builds and so it's -- you almost have to look at it across the full cycle.
It looks great, but you -- depending on what part of the cycle is, it's lumpy.
You get huge surges and then you kind of give back the ROA for a period of time.
And so we feel really good that we've been able to maintain profitability even with a lot higher charge-off rate and much more normal charge-off rate of about 3% than when we were charging off at 2% and have reserve releases from a number of years ago.
Operator
Your next question comes from the line of Chris Donat with Sandler O'Neill.
Christopher Roy Donat - MD of Equity Research
Mark, I know you said you were comfortable with the expense guidance you've given.
But looking back over the last few years, at least in two of the last 3 years, you had about 50% of the annual expenses spent in the first half of the year.
And I know there were some unique things going on in some of those years like with higher regulatory expenses or things tied to some other things.
But just wondering if you expect the cadence of expenses this year to be a little bit more back end weighted given that you've already had like $1.9 billion in the first half of 2018.
R. Mark Graf - Executive VP & CFO
Yes, I would say the expense growth is really a function, Chris, of the business growth, right?
So we talked about at the beginning of the year when we gave that annual guidance that we were going to be investing a chunk of the benefits to tax reform not only into advanced data and analytics capabilities, but also into some growth-related activities.
Those continue throughout the course of the year and the pacing of those is not exactly linear, I would say, would be the right way to think about it.
At the end of the day, we do believe we have the ability to drive the efficiency ratio lower over time.
We definitely have a lot more expense leverage in the model than you're seeing out of this thus far this year, right?
But as a kid who grew up on a farm, I'll use my farm analogy and that is you make hay while the sun shines.
And we've got a great investment to invest for that growth, we've got a great opportunity to continue enhance our digital and analytic capability.
And back to that thought about running the business for the long haul, this is the year we're choosing to make those investments.
You saw 4% positive operating leverage out of this each of the last 2 years.
This is a business model that naturally produces that positive operating leverage.
It's just a choice we've made consciously to build for growth this year -- to invest for the future this year.
Christopher Roy Donat - MD of Equity Research
Okay.
And then for my follow-up comment on a very different topic.
So we recently got the Supreme Court's ruling in favor of American Express on antisteering rules.
Just wondering not so much on the American Express side, but Visa and Mastercard had their settlements they made, I think, in 2011 with the Department of Justice on some steering issues.
But I'm not sure much has changed in the market since that time, I think, waiting for what the outcome of the Amex litigation be.
Anyway, any changes you're expecting to make now that we're kind of through all this litigation?
Or is it pretty much the same as it ever was for issues around steering and your opportunity?
David W. Nelms - Chairman & CEO
Yes, for us, it kind of maintains the status quo and so I don't expect a business impact.
Operator
Your next question comes from the line of Betsy Graseck with Morgan Stanley.
Betsy Lynn Graseck - MD
Just a couple of questions.
Mark, I think you mentioned earlier around promo balances that you expect that they were going to be falling throughout the year.
I wasn't sure if that's a percentage of total, I think that's what you meant.
But maybe you could give us a little more color as to why you use the word rapidly and just your outlook there.
R. Mark Graf - Executive VP & CFO
Yes, we invested pretty heavily as part of that -- those growth expenses we talked about early in the year, Betsy, and part of that investment in that case went toward balance transfer activities.
That -- those mailings and those digital placements have not continued at anywhere near the same pace.
Normally, when you stop those mailings and digital placements, you start to see falloff in the volume that's coming on from those efforts sooner than we did this time.
So we are now seeing the falloff from those offers.
We're clearly seeing the pieces of the puzzle align that's very comfortable that with a much lower level of balance transfer offering going forward and having changed the program a little bit as well that, that trajectory is going to continue and feel good that we will see 1% or more reduction over the course of the year in the level of promo balances in the portfolio today.
Betsy Lynn Graseck - MD
Got it, okay.
So it's around 1%.
Okay.
And then second question was just on transactors, and I mean, you're looking more for revolvers than transactors, but maybe you can help us understand how you're balancing between wanting to grow sales and having offers that do attract transactors with the balance growth that you're really looking for.
David W. Nelms - Chairman & CEO
Yes, I'd say, Betsy, our strategy has been very consistent in that we target people that are credit worthy, but at least have some propensity to maybe revolve at some point.
I think everyone knows that if you think rewards pretty much offset interchange, if someone's a lifetime transactor, there's no revenue from that customer.
And so we've continued to therefore focus on profitable revolvers.
And some of our boost in transactor volume is more of a return to normal because there's fewer competitive offers that were pulling away some of the transactors from us a year ago and 2 years ago, particularly in some of the sands in Costco, awards and some of the people really targeting very high-end transactors.
And so to some degree, the grocery category also had an impact this quarter because that seems to be more transactive.
But generally, it's just bounced back to probably more normal levels where loan and sales growth are about the same for us this quarter.
Betsy Lynn Graseck - MD
And do you feel like gas had a material impact or even a noticeable impact on spend levels this quarter?
David W. Nelms - Chairman & CEO
It did.
Our gas purchases are up 25% year-over-year and that was a negative for several years and it's looked around to be a positive.
Operator
Your next question comes from the line of Bill Carcache with Nomura Instinet.
Bill Carcache - VP
Mark, can you give us an update on what's happening specifically with negative credit migration in the portfolio?
Just wondering whether along with the generally favorable credit trends that you've described, you're perhaps also seeing a notable lessening in the pace of customers that you've underwritten as prime credits, but are falling to subprime?
And if so, why you think that is?
R. Mark Graf - Executive VP & CFO
We have seen in the most recent quarters a slowdown in the rate of a drop-off from the above 660 into the below 660 book.
So yes, we have seen that.
I really don't want to hazard a guess for you here on the call in terms of exactly what the moving parts and pieces of that are other than to point back to what we've already talked about, and that being specifically the level of normalization that curve is beginning to become muted.
I think the people who were overleveraged are kind of working their way through the system at this point in time a little bit.
And at this point, looking at the roles in the buckets, looking at the current delinquency situation, credit is encouraging, right?
That's not saying we expect credit to turn around and start having reserve releases.
I don't want you to misunderstand.
But clearly, we see a very clear path where the health of the book is clearly still very good and any signs of stress are moderating.
Bill Carcache - VP
Understood.
If I may, as a follow-up, what's the level of deposit beta where you think we'll no longer see NIM flow-through benefit from additional rate hikes?
R. Mark Graf - Executive VP & CFO
Considerably high right now.
That 46 cumulative beta we're sitting at right now is well below what our through-the-cycle expectations are and the 10 basis point marginal beta on the most recent move is obviously -- the 40 beta, rather, with a 10 basis point move is obviously well below.
So I would say we still have rate good guys from the positioning of the balance sheet and the deposit book.
Operator
Your next question comes from the line of Chris Brendler with Buckingham.
Christopher Charles Brendler - Analyst
Mark, circle back on the NIM for a second, you did a nice job of sort of walking through the quarterly progression.
But can you maybe discuss the annual progression?
Like I just noticed 22 basis points on the card yield year-over-year after 100 basis points-plus of Fed moves.
I know there's lots of different factors that go into that, but you haven't really moved the subprime percentage that much.
The one thing we can see hasn't moved that much.
Obviously, transactors have an effect, promotional balances.
But 22 basis points seems real low and maybe is there a lag since you need to catch up with some of the Fed moves?
R. Mark Graf - Executive VP & CFO
So the book reprices, if you think about it on the next cycle date after a Fed move.
So there's not a particularly large lag on the revolving balances we have.
I think you rightly called out the moving parts and pieces.
It's the level of promotional activity, which is coming in higher than we expected it to in the first half of the year, which has had a muting effect on that card yield number for sure.
And the level of transactors we saw emerge in the book, obviously, has a muting effect as well because ultimately at the end of the day that's a 0% interest-earning balance you're carrying.
So our NIM guidance in terms of sticking to our full year thoughts, obviously implies we expect to see improvement in the combination of those categories.
So I would expect you to see more flow-through to card yield as we look forward here.
Christopher Charles Brendler - Analyst
Great.
And then a quick follow-up maybe for David, just an update on the checking account and the debit rewards product.
It seems like a really exciting opportunity and was hoping just additional update there in terms of traction and then when are you going to go full scale and launch that product?
David W. Nelms - Chairman & CEO
Well, we're very pleased with the results in the first half of the year.
We had virtually no marketing.
But with the redesign of the reward component early this year, we've seen a much higher per-month take-up rate, doubled our new accounts per month.
We do expect to do some marketing in the second half of the year.
We'll be introducing a new plastic design and some additional feature functionality here shortly, but it will probably be next year before we're really ready to put more serious marketing heft behind it as we continue to get experience on the marketing and the fraud patterns and adding more feature functionality.
We want to do this right.
It'll be a gradual build, and over the very long term, we think it's very important.
But we don't want to go too fast too early.
Operator
Your next question comes from the line of Moshe Orenbuch with Crédit Suisse.
Moshe Ari Orenbuch - MD and Equity Research Analyst
Most of my questions have been asked and answered, but I wanted to kind of just concur with your point on the mail volume in the personal loan business.
Your mail volume, though, is probably encouraged by the 2.5x your personal loan business, but you're still doing a couple hundred million pieces a year.
Could you talk a little bit about whether there's anything we should think about on your costs from reducing that?
Or are you going to be able to reallocate that to other activities?
David W. Nelms - Chairman & CEO
I wouldn't -- we're going to be pulling back, but I don't -- I'm not sure what percentage it is.
But don't think that, that volume is going to go away for us.
I mean, it's -- we're keeping disciplined.
We're mailing segments that work.
Our cost per account actually has held up remarkably well considering the volumes.
And in fact, one of the things that -- seems to be is a lot of that marketing that we're seeing out there is not going to the same people that we're sending to.
We're sending people -- send much more pieces -- many more pieces of mail than we think are good credit risk and we see some people going maybe in the subprime marketing, which obviously we're not in.
So I would think about maybe some expense pullback, but it's not going to be material to the company and it doesn't get us out of the range that Mark kind of reaffirmed that we expect for the year for the full company.
R. Mark Graf - Executive VP & CFO
Yes, I would say, Moshe, most of it gets reallocated, right.
To the extent there's pullback, we'll reallocate it because we continue to see great opportunities elsewhere to drive great risk-adjusted returns.
So this is not a reflection of some giant concern we have in our personal loan book.
It's really more reflective of what we said earlier.
There's times when, in this business, you want to be on the accelerator and there's times in this business where you want to slightly lighter foot.
So I think it's really more that and those expenses will get reallocated largely.
David W. Nelms - Chairman & CEO
And essentially, we'll continue to market down to the marginal return being strong.
And there's still a lot of good personal loan business out there that has strong marginal returns as long as one keeps the pricing and credit discipline, which we're doing.
R. Mark Graf - Executive VP & CFO
Well said.
Moshe Ari Orenbuch - MD and Equity Research Analyst
Just as a follow-up.
Mark, in the past, you've talked about a lot different factors kind of in addition to the underlying performance of your consumers.
But macro factors -- we talked a little bit about leverage.
Other macro factors when you think about the level of the reserve, how are they performing and how does that?
And how does that fit into your kind of reserve determination?
R. Mark Graf - Executive VP & CFO
So the big macros that go into the reserve, Moshe, would be unemployment is a biggie.
That one is obviously continuing to perform in a benign fashion as you think about the forward 12 months.
I think Moody's has been the outlier there in terms of forecasting and they continue to kick the can down the road on when they see that tick up.
I would say nonfarm payrolls would be a big input in terms of what we see and that continues to go well.
Initial bankruptcy claims are a big one.
We don't see a significant movement there at this point in time.
Consumer confidence is a big input, that remains strong, it has deteriorated a little bit, but remains very strong.
That's been just choppy with all the geopolitical and political noise out there.
HPI continues to be a big input, that has continued to be strong across the spectrum.
So that's why when we talk about a good environment, Moshe, in which to continue generating quality loans, the backdrop right now continues to feel very healthy on the part of the consumer.
It doesn't mean you don't look for those pockets where, okay, there are signs of things getting a little long in the tooth emerging a la some of these segments in personal loans and the like.
And you feather the accelerator there and you reallocate toward areas where you see additional opportunities.
Operator
Our final question comes from the line of Brian Foran with Autonomous.
Brian D. Foran - Partner, Universal and Regional Banks
My last question has 6 parts.
First, just to make sure I'm not doing anything stupid.
I mean, you went through each of the guidance lines individually.
So if I'm looking at the fourth quarter presentation and the 6 line items you gave ranges on, you're basically saying you're still comfortable with each of those 6 ranges -- loans, expenses, rewards, NIM, net charge-offs and tax rate.
It's all still the same in your mind?
R. Mark Graf - Executive VP & CFO
Yes, we didn't say anything about tax rate, but I'll go ahead and say we're comfortable with the tax rate.
Brian D. Foran - Partner, Universal and Regional Banks
And then just on the NIM trajectory, I mean, kind of listening to you, it sounds like it would build through 3Q and then build again into 4Q if it's promos going down and Fed funds going up as 2 key drivers.
I mean, are you kind of thinking like the exit run rate of NIM for the year is closer to like 10.50%?
Or I guess it just -- it seems optically like a big jump and I know you went through it onetime, but is that like the implication it's like a 10.50% exit run rate for the year?
R. Mark Graf - Executive VP & CFO
Yes, I wouldn't validate the 10.50% number, but I would validate that it's definitely a big jump.
There's no question.
I mean, through the first 2 quarters, we're sitting at a 10.22%.
That's not lost on us in any way, shape, means or form.
And obviously, we see a significant movement in the balance transfer and promo portion of the portfolio.
As you might imagine preparing for this call, and we spent a lot of time looking at that and making sure and pressure testing, we feel confident that we're going to see meaningful uptick in the NIM in the remainder of the year, and that for the full year basis, that guidance still feels good.
The other thing I would say is, just to be clear, maybe give you a little bit of a peek understanding in this regard, too.
It was never our expectation that NIM was going to be flat higher across the full course of the year anyway.
We knew some of the growth investments we were making earlier in the year would have some muting effect there as well.
Again, some of them just had more of a halo effect for longer than we thought they would.
Brian D. Foran - Partner, Universal and Regional Banks
And then if I could sneak 2 in -- small ones in on just these dynamics you're talking about.
On the balance transfers, is it just the dynamic around how many offers went out and what the take-up was?
Or has there been any change relative to what you thought on the maturing balance transfers sticking around at the standard rate?
So any thoughts you can give on retention of balance transfers?
And then on the transactor and seasonality in 2Q point and it's something you've brought up and Cap One brought up and USB brought up and it kind of wasn't even on my radar screen.
Is it that transactors were higher than expected?
Or is it just that the transactor drag, now that rates are higher, is a little bit more noticeable and we all kind of forgot about the seasonality when rates were at 0 for so long.
So maybe if you could just remind us, is that transactor thing something that was unusual this year or something we should think about seasonally every year going forward?
R. Mark Graf - Executive VP & CFO
So BT retention at the expiration of the BT continues to be economically positive, continues to perform well.
That being said, in a rising rate environment, there's only so much on your balance you want to allocate that BT volume.
And again, we -- kudos to our marketing team, they design stuff that really worked and stuck around longer and worked better than we expected it to.
So we ended up a little bit more on the balance sheet there.
And again, that feathers off as we move forward throughout the remainder of the year pretty meaningfully.
But I would say BTs remain economic, right?
At this point in time, the retention is good there and the NPV of those offers continues to be positive and good.
In terms of the transactor side of the question, I would say the answer to your question is it's a both and.
It is both transactors engage at a higher degree, higher level, higher degree of velocity.
They were a greater portion of our spend increase this quarter than they had been in a meaningful period of time, and the cost of carrying that transactor float is obviously a little bit higher, too, as rates have risen.
So our quarter-over-quarter comment really is reflective more of their percentage composition of the growth.
But as time goes on, obviously the cost of that float goes up and that will be a piece, too.
Brian D. Foran - Partner, Universal and Regional Banks
I think I got four in there so I'll stop there.
Craig A. Streem - VP of IR
You can call us back with the other two.
Alicia, I think we're done.
What do you think?
Operator
Yes, sir.
I will now turn the floor back over to Craig Streem for any additional or closing remarks.
Craig A. Streem - VP of IR
Sure.
Thanks for your interest, everyone.
And of course, we are available for any follow-up questions you might have.
Thank you.
Bye.
Operator
This concludes today's call.
You may now disconnect.