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Operator
Good morning. My name is David, and I'll be your conference operator today. At this time, I'd like to welcome everyone to the Enterprise Financial Services Corp. Q1 2023 Earnings Conference Call. Today's conference is being recorded. (Operator Instructions)
Jim Lally, President and CEO You may begin your conference.
James Brian Lally - President, CEO & Director
Well, thank you, David, and thank you all very much for joining us this morning, and welcome to our 2023 first quarter earnings call. Joining me this morning is Keene Turner, EFSC's Chief Financial and Chief Operating Officer; and Scott Goodman, President of Enterprise Bank & Trust.
Before we begin, I would like to remind everybody on the call that a copy of the release and accompanying presentation can be found on our website. The presentation and earnings release were furnished on SEC Form 8-K yesterday. Please refer to Slide 2 of the presentation titled Forward-Looking Statements and our most recent 10-K and 10-Q for reasons why actual results may vary from any forward-looking statements that we make today.
Our company entered 2023 with a great deal of momentum. Loan pipelines were good. Our newer markets and businesses were contributing as expected. Credit was in great shape and clients are doing very well. Along the way, the industry disruption experienced in early March tested our relationship model and the results from our first quarter, in particular, how we ended the quarter with respect to deposit growth, liquidity, cost of deposits, borrowing capacity and capital ratios show that we passed this test with flying colors.
During our fourth quarter call, I spoke about the relationship aspect of our depository businesses. We knew that 2023 would be a year that would require us to find the appropriate balance between retaining and growing the space while being mindful of competition and rising rates. What we did not know is that this would be put to the test in a matter of days and weeks in early March.
I was impressed, but certainly not surprised by 2 things: first, our team's commitment and ability to reach out to our clients to explain what was happening and to reinforce our strength and differentiation versus those, who are experiencing issues. And secondly, the incredible confidence that our client base had in our company. Since then, we have been working with these clients to remix their deposits, seeking the appropriate balance between yield and safety, using all products and resources available to them. Scott and Keene will provide much more details on this in their comments.
The financial highlights for the first quarter can be found on Slide 3. While we can't entirely control how events impact us, I do like our position. We start from a position of strength, both from an earnings and balance sheet perspective. First, net income was $56 million or $1.46 per diluted share for the quarter and we produced a return on assets of 1.72% and return on tangible common equity of 20%.
Our profitability is supported and aided by our short-duration asset-sensitive balance sheet that is a result of the execution of our business model. Despite intense deposit competition and pressure in the first quarter, we were able to expand our net interest margin by 5 basis points to 4.71%. And with 2 fewer days in the first quarter, net interest income grew to $139 million.
While deposit remixing and repricing in the quarter was intense, our total cost of deposits for the month of March was just over 1%. This again reflects the strength and position of our balance sheet and my confidence in our ability to continue to generate superior asset yields and growth to mitigate pricing pressure on funding and deposits.
Earnings, combined with our strong asset position in addition to a well-managed investment portfolio resulted in the tangible common equity to tangible assets ratio expanding during the quarter to 8.81%. Additionally, our earnings helped to contribute to just under $2 per share to our tangible book value during the first quarter, which closed at $30.55.
Turning to Slide 4. You can see that our loan growth remained strong during the quarter as it increased $275 million. This represented an annualized growth rate of 11% and like in previous quarters, this growth emanated from just about all of our businesses and regions with a focus on quality and a full relationship. We were able to fund this growth with our deposit growth as this grew by $325 million during the quarter and included the use of brokered CDs. At quarter end, our loan-to-deposit ratio stood at 90% and due to the aforementioned remixing of our deposits, DDA percentage of deposits to total reduced to 38%.
We recognize that the ability to fund our expected loan growth with core deposits will be our greatest challenge for the remainder of the year. We are seeing all the great work we have done over the past several years, diversifying our deposit base and geographies paying off. We are prepared to defend our deposit base and know that deposit costs will continue to rise. However, our C&I-focused variable rate weighted loan portfolio should provide a good buffer to defend our NIM. Credit quality remained pristine with continued low charge-off activity and low level of nonperforming assets and a healthy allowance level.
Slide 5 shows where we will be focused for the remainder of the year. I would expect that the momentum with which we enter the year will continue for the foreseeable future. Those of you who know us well, know that we typically perform extremely well when there is a bit of uncertainty. We grew well coming out of the great recession. We acquired 2 companies during the COVID pandemic, and I'm confident that we will do what it takes to defend well what we have, while having an eye towards taking advantage of what our markets will give us to acquire new clients, new teams and possibly new businesses.
With that, I would like to turn the call over to Scott Goodman, who will provide much more details about our markets and our businesses. Scott?
Scott R. Goodman - President
Thank you, Jim, and good morning, everybody. Q1 was a quarter defined by follow-through on a steady and well-balanced loan pipeline and active outreach to our client base for consultation, defense and exploration of new opportunities around deposit relationships. While the events of March certainly ramped up the volume of client touches, in many ways, this activity was not a departure from the advisory-based approach and consultative sale processes that we have traditionally driven our business model through the years.
In that regard, our ability to deploy specific event-driven talking points, content and product sets into our existing marketing, CRM and sales management systems resulted in rapid, transparent and productive client engagement. I'm very proud of how our client-facing and operational teams across the company responded to the circumstances, but our client cities and have created many new opportunities as a result.
Turning to loans summarized on Slides 6 through 8, growth in the quarter was $275 million or 11.4% annualized and 12.2% year-over-year net of PPP. Over the past year, we've experienced growth across all major categories of the business as we continue to prioritize the diversification of our production and the resulting loan portfolios.
For Q1, broken out on Slide 8. seasonally typical levels of origination were complemented by slightly lower payoff activity and a modest increase in revolving line usage to produce these results. Growth in C&I reflects success in onboarding new regional commercial banking relationships as well as the aforementioned uptick in revolving line usage. Growth in commercial real estate and construction development are reflective of new asset acquisition and investment opportunities with larger existing relationships as well as draws on fixed lines representing progress on construction loans closed in prior quarters.
In our specialty loan categories, sponsor finance posted solid growth of $43 million in Q1 as we saw a number of closings get pushed from a typically strong fiscal Q4 into the first quarter. Sponsors continue to deploy a strong base of capital in their existing funds, albeit with some patience and discipline around purchase multiples. Life insurance premium finance also experienced growth of $43 million in the quarter with steady new originations and a typical seasonal uptick in advances for premiums paid on existing deals.
Following strong growth in Q4, SBA was essentially flat for the quarter. Origination activity was consistent with typical Q1 levels. However, elevated payoff activity muted net growth. Competitive pressures from traditional banks and lower fixed rates have been a headwind to retention of existing loans. We are defending solid credit profile loans in this book with alternative rate structures and we continue to execute well on the production side of the business. We also expect this channel to be well positioned to take advantage of any potential credit tightening or liquidity restraints that may affect the loan appetite from traditional bank lenders.
Tax credits posted a modest reduction in outstandings reflecting paydown activity from the sale of tax credit inventory, which is typical of the first quarter in this business. There has also been some delay in closings of new projects due to higher interest and construction costs as developers source additional funding. Overall, though, we expect originations to ramp back up and also anticipate activity from newer state affordable housing programs to add some additional new opportunities going forward.
Regionally, we posted growth across our footprint as reflected on Slide 9. The Southwest posted strong results totaling $85 million of increased loans in the quarter. The region benefited from continued traction from our newest team in Texas as they onboarded new business, including several significant new relationships with food distribution, industrial storage and medical service companies.
Arizona also closed larger loans for new asset acquisitions with existing clients in the storage and hospitality industries. In the Midwest region, the Kansas City and St. Louis teams produced solid origination activity, including funding of a new industrial development with a large existing engineering client and acquisition of equipment with a new transportation company relationship. This region also benefited most from the elevated revolving line activity given the heavier C&I makeup of those portfolios.
And in our West region of Southern California, the portfolio edged up modestly in the quarter, adding to annual growth year-over-year of $75 million or 4.7%. We began to gain traction in the second half of 2022 as we cultivate an expansion of strategy in this market, having added new C&I talent to the acquired base of commercial real estate originators in our L.A. and Orange County markets.
Payoff and paydown activity has moderated from the levels experienced earlier last year, and the C&I pipeline activity has been building. We also successfully expanded some key legacy relationships in this portfolio during Q1, including new closings for hospitality, investor retail and industrial clients.
Turning to deposits, which are broken out for the last 12 months and the quarter on Slides 10 and 11. I'll provide some high-level commentary and color around what we're seeing from clients. And then Keene will provide more detail on funding costs and category movements in his comments.
Year-over-year, deposits are down $540 million (sic) [$549 million] or 4.7%. The largest area of decline is noninterest-bearing accounts with nearly 2/3 of that occurring during Q1 of 2023. Offsetting a material portion of this decline has been strong growth from our specialty deposit businesses, including $307 million of growth in Q1, as shown on Slide 11.
During the first quarter, we grew deposits overall by $326 million. Historically, Q1 has been a seasonally soft quarter for deposit growth in our company with outflows from tax, dividend and bonus payments. This year, net of brokered CDs, we grew overall customer deposits by $75 million. We did see significant remixing of balances, particularly during the month of March, spurred early on by the publicity of bank failures driving depositors towards perceived risk-free alternatives and more lately due to elevated focus on deposit rates. Consequently, declines in noninterest-bearing accounts have been shifted mostly to the categories of money market interest-bearing demand and time deposits.
Slide 12 shows the regional breakout of deposit portfolios. Net of broker deposits, which are reflected within the Midwest balances, core client balances in the geographic markets declined modestly during Q1. Aside from typical seasonal declines related to bonus and tax payments, we did see some consumer clients moving concentrated balances to larger banks as well as larger commercial clients investing some excess balances in higher-yielding accounts and U.S. treasuries.
In general, though, we are not losing core relationships, and we have been successful in using FDIC insured options such as ICS and CDARS to hold on to larger balanced commercial accounts. We have also selectively structured a variety of pricing options to retain high-value relationships.
Our specialized deposit channels, which are broken out on Slide 13, continue to perform well and are contributing strong growth in a turbulent market for deposits. These business lines comprised of community associations, property management and third-party escrow accounts provide a steady source of new accounts with somewhat limited competition. Other specialty balances are inclusive of sponsor finance and declined in the quarter.
A majority of the lost balances in this category totaling roughly $30 million were associated with companies that had been sold by our fund sponsor clients, but which had retained their accounts in Enterprise. Generally, these tend to leave over time as the new ownership groups consolidate with their existing banking relationships. However, we saw this behavior accelerate in March due mainly to the fallout from the bank failures.
Finally, we provided additional detail on our core funding mix and account activity for the quarter on Slide 14. This data further supports both the diversity and a relationship anchored orientation of our funding base. Balances are spread across 4 main channels with 38% of total funding and noninterest-bearing accounts. During Q1, our sales process continued to generate positive results with net increases in new account balances versus closed accounts across all major channels.
The net reduction in number of commercial and business banking accounts is primarily due to consolidation and account closures associated with the remixing of account types and the movement of some balances to treasuries and nonbank alternatives. There is also granularity to these portfolios, as you can see from the average account sizes. Our practice is to require the operating accounts for all C&I loan clients and 80% of all commercial balances are tied to treasury management or online banking products, which adds traction to these relationship deposits.
We've also seen a significant improvement in our insured deposits. We spent time confirming account titling and other similar attributes with clients during the latter part of March. This is most prolific in our specialized deposit areas as we view account titling as a competitive advantage in both HOA and property management. We ended the first quarter with approximately 70% of the deposit portfolio insured or collateralized.
With that, now I'd like to turn the call over to Keene Turner for his comments, Keene?
Keene S. Turner - Executive VP & CFO
Thanks, Scott, and good morning, everyone. I'm going to start with my typical comments on the quarterly financial results, and then I'll address the supplemental information that we provided.
Turning to Slide 15. We reported earnings per share of $1.46 in the first quarter on net income of $56 million. Our net interest margin expanded from the linked quarter, which combined with growth in earning assets helped to modestly expand net interest income. Additionally, fee income was comparable to a seasonally strong fourth quarter, leading to modest expansion of operating revenue in the first quarter.
The provision for credit losses was more significant for the first quarter, but not driven by adverse loan trends and noninterest expense was seasonally higher in the current quarter. All things considered, we're pleased with the performance of net interest margin, loan growth and funding. Our return profile thus far reflects a strong base on which to build the remainder of 2023.
Turning to Slide 16. Net interest income for the quarter was $139.5 million, compared to $138.8 million in the linked quarter, an increase of $0.7 million despite 2 fewer days. Net interest margin expanded 5 basis points in the first quarter to 4.71% on a tax equivalent basis. The margin performance reflects the expected results from fourth and first quarter increases to the Fed funds rate combined with continued growth, albeit at a more modest rate than we had forecasted. More details follow on Slide 17.
Earning assets grew $194 million on average in the first quarter and yields increased 44 basis points, compared to the linked quarter. Investment balances were higher by $84 million on average, reflecting purchase activity in the prior quarter combined with an increase in the fair value of the available-for-sale portion of our portfolio. The yield improved 12 basis points over the fourth quarter due to the full quarter impact of the securities we purchased last quarter. We already elected to pause additional portfolio investment in the first quarter, and we subsequently halted reinvestment of the majority of cash flows during the market [of people].
Portfolio loans grew $275 million in the first quarter and when combined with strong growth in December of 2022, were higher by $371 million on average compared to the prior period. The total loan yield improved by 46 basis points in the first quarter, which includes a 5 basis point negative impact from purchase accounting amortization and an additional 1 basis point reduction for received fixed swaps.
New loans were booked at a yield of 6.53% in the first quarter. Interest-bearing liabilities increased $355 million on average and the cost increased 65 basis points from the prior quarter. Average deposit balances declined $89 million in the quarter, including $282 million decrease in average noninterest-bearing balances. The decrease in noninterest-bearing balance -- noninterest-bearing accounts was driven by 2 distinct factors. First, a combination of customer deployment and rate focus early in the quarter resulted in modest net declines and remixing of balances into higher rate money market and CD accounts. And second and most materially, a flight to safety late in the quarter resulted in balances moving into reciprocal accounts or to other institutions for diversification of risk.
Of the $450 million decline in noninterest-bearing balances during the quarter, approximately $350 million of that occurred in the last 3 weeks of March. Interest-bearing checking and money market balances grew $90 million on average, but increased $445 million within the quarter. As noted, this was primarily a result of funds moving from noninterest-bearing accounts to higher-yielding products or in the FDIC insured reciprocal products. We also made the intentional decision to bring in additional balances off at higher interest rates to support balance sheet liquidity during the last few weeks of the quarter. These actions helped to defend against net reduction in balances that occurred as a result of industry stress late in the first quarter.
Time deposits increased $145 million on average, including $71 million of brokered funds. Total brokered time deposits grew $251 million within the quarter as we elected to add term funding and avoid reliance on our borrowing lines. Brokered funding adds an element of stability to the overall funding base, while we work through a combination of industry challenges and typical seasonality.
FHLB advances were higher by $102 million on average as we utilize short-term debt as a bridge funding alternative during the quarter until brokered CDs and other deposit strategies could be completed. In total, the ending FHLB balance was unchanged from the end of the fourth quarter to the end of the first. Maybe noteworthy here is that we do expect to see FHLB as a part of the funding stack moving forward as it provides flexibility for certain of our specialized deposit categories. These categories collect balances early in the month and then deploy them after the first couple of weeks.
Our cost of deposits increased during the quarter as we continue to experience some of the pricing lag we expected from last year. Additionally, a combination of competitive, economic and industry-based factors push rates higher and the change in our deposit mix caused additional increases in our deposit costs beyond what we had anticipated.
Our average cost of interest-bearing deposits increased 62 basis points from the prior period, which equates to a 72% beta compared to the Fed funds effective rate. With that said, our cumulative interest-bearing deposit beta for this rate cycle stands at 32%, which is in line with our historical level and is only 18% for total deposits. With that said, we are pleased that the cost of deposits in the quarter was less than 1% given where the Fed funds target is, and we are sitting here today with a total cost of deposits at an estimated 1.25%.
With all that said, we see a path from first to second quarter to maintain a stable to slightly increasing level of net interest income, albeit that comes with some level of net interest margin compression. We believe that we will continue to see remixing and increased competition. However, the asset side of our balance sheet allows us to mostly absorb those costs. Assuming we can weather the repricing and remixing war in the second quarter, there is an opportunity for us to expand net interest income dollars thereafter.
Slide 18 shows our credit trends. We experienced modest net recoveries in the first quarter and the overall asset quality remained stable. Nonperforming assets remain less than 10 basis points of total assets. We recorded a $4.2 million provision for credit losses during the first quarter that was primarily related to an investment in Signature Bank subordinated debt. Our total investment was $5 million and was equivalent to the largest individual portion of sub debt or loan we would hold.
Slide 19 presents the allowance for credit losses. The allowance for credit losses increased by $1.4 million in the quarter to cover loan growth. The allowance for credit losses represents 1.38% of total loans, compared to 1.41% at the end of the year. When adjusting for government guarantees, the allowance to total loans was 1.53%.
On Slide 20, first quarter fee income of $17 million was stable with the fourth quarter although the composition of fee income did change slightly between certain categories. Overall, fee income remained at a consistent percentage of operating revenue in the first quarter.
Turning to Slide 21. First quarter noninterest expense was $81 million, an increase of $4 million, compared to $77 million for the fourth quarter. Compensation and benefits was the main driver of this increase, primarily from seasonally higher payroll taxes and 401(k) match. Also the run rate is a reflection of continued resource investment in the associate base both in the form of net hiring activity as well as a partial period of impact of merit increases.
Deposit service expenses declined from the linked quarter. We did expect this line item to expand sequentially, and we are pleased that it did not, however, requires some further explanation. First, as a reminder that the fourth quarter included the cumulative impact of the competitive decisions we made in that quarter of roughly $1 million to maintain certain client relationships. And second, we were accruing the line item to reflect that clients would be able to largely have expenses to offset against the earned credits. However, this ended up not being the case, and some of that expiration occurred in the first quarter. Thus, the run rate for the first quarter, we estimate was around $14 million and we expect that to expand from the first to the second quarter by $1 million to $2 million, reflecting both continued growth in balances and rates.
Overall, we expect noninterest expense to increase to $83 million to $85 million in the second quarter, reflecting both an increase in deposit service expense and anticipated higher commissions.
The first quarter's core efficiency ratio was 50.5%, an increase of 240 basis points compared to the fourth quarter driven primarily by a rise in both interest and noninterest expenses in the quarter. With some moderation of our net interest margin and net interest income expectations, we do expect core efficiency to move up slightly in the coming quarters to be roughly 52% to 53%, barring better fees or that we are too conservative on net interest income.
Our capital metrics are shown on Slide 22. Strong first quarter earnings and a $24 million improvement in accumulated other comprehensive income resulted in a nearly 7% expansion of tangible book value per share to $30.55. Right now, our earnings profile and high capital retention rate are supporting our flexibility in being defensive from a capital accretion perspective, while we are also comfortable building the franchise with existing and new client growth. We have always been thoughtful about our capital actions and how we manage the balance sheet, not doing too much of any one thing. This is reflected in our tangible common equity ratio nearing 9% and in our common equity Tier 1 ratio over 11%.
While we look at the investment portfolio on Slide 23, you can see that we apply the same principles and philosophy managing here. So while we use held to maturity to help manage volatility in tangible common equity and accumulated other comprehensive income, we did so at a measured level. Thus, after-tax unrealized losses on held to maturity are approximately 40 basis points of tangible common equity and total available for sale and held to maturity losses are approximately 150 basis points on common equity Tier 1 to roughly 9.7% common equity Tier 1 capital, including all unrealized securities losses.
Separately, we use the investment portfolio for 2 purposes. We have a shorter-term component, which is roughly 60% of the portfolio for liquidity, cash flow and municipal deposit pledging purposes. This would represent agency mortgage-backed and CMOs, T-bills and other government-sponsored securities. The remaining 40%, we invest in 10- to 15-year new issue municipal securities. We utilize this portion of the portfolio to stabilize our extreme asset sensitivity, because our loan portfolio is short duration with a 2.5-year weighted average life, and we have a portfolio of mostly saleable variable rate SBA loans.
In the first quarter, we sold $8.8 million of SBA loans and recognized a $0.5 million gain on the sale. The SBA sale was a practice for contingency planning as we had not executed any sales since acquiring Seacoast in 2020. Also in January, we sold roughly $30 million of lower-yielding securities at a gain and reinvested the proceeds at a higher yield.
It's worth reiterating here that the loan portfolio was almost 65% variable rate, so while our 6-year investment portfolio duration may seem long on the surface, we use it purposely and we kept it proportionate in size to our long-term balance sheet targets despite having billions in excess cash in 2020 and 2021. We slow played investing that cash to be cautious of its resiliency and that strategy along with investing methodically over numerous quarters supports our current capital position, profitability and flexibility moving forward.
And finally, on Slide 24, we provided some additional context on liquidity. I'll first start by saying that roughly 70% of our deposits are insured or otherwise collateralized, reflecting collateral pledged to municipalities, use of CDARS, account titling for trustees and custodians and in some cases, surety bonds for our specialized deposit businesses. That means that the remaining 31% is above insurance limits and is within the available $4 billion of liquidity that we now have. You might expect, we spent a good portion of March, pledging additional collateral in case we needed to be defensive given the turmoil that occurred in banking.
Finally, and worth noting many of the balances that are greater than the insurance limits are with long-time clients, who have full banking relationships here and have grown with us over decades. With that, we feel our prospects are sound to fund the balance sheet with deposit growth in 2023 and our position in the profile, particularly in specialty deposit lends itself well to support that growth even in the face of an environment focused on deposit insurance.
Additionally, while the cost of deposits have increased, we believe our lending businesses are adequately positioned to continue to deflect and absorb some of those costs. While returns may decline modestly, they are doing so from a high starting point and our earnings profile remains differentiated and robust.
With that, I appreciate your attention today, and we're now going to open the line for analyst questions.
Operator
(Operator Instructions) We'll take our first question from Jeff Rulis with D.A. Davidson.
Jeffrey Allen Rulis - MD & Senior Research Analyst
I didn't -- I don't know if I missed it from Scott or Keene. Just the outlook on the loan growth and pipelines sounded optimistic and some seasonal items that could come in. But just wanted to kind of understand what your outlook there is on net growth for the remainder of the year?
Scott R. Goodman - President
Sure, Jeff. I can give you some color. I think maybe on the specialty side of the business, those continue to be very steady performers. I think maybe the only outlier was tax, which we've seen, as I mentioned, seasonal decline related to tax payments and some of the construction projects, just kind of waiting to re-bid. I think we're seeing that, and we fully expect that niche to perform as expected for the remainder of the year. The rest of those businesses continue to plug along. I think we've seen that in prior quarters, very steady businesses.
I think within the regions, we're seeing good opportunities, solid pipelines. Overall, we're seeing maybe some stress competitors back away from the market slightly. And I think we're going to get opportunities to look at higher quality loans, number one, and I think also prioritizing strong pricing there as well. So I think we feel very good about the opportunities that we're leaning into, and I think it bodes well for the pipeline for the rest of the year.
Jeffrey Allen Rulis - MD & Senior Research Analyst
To put a number to that, Scott, I mean, it had low double-digit growth this quarter. I -- it sounds positive, but high single digits.
James Brian Lally - President, CEO & Director
Yes, Jeff, this is Jim and I'll handle that one. So I would tell you we're still confident in that mid- to high single digits for the year. And I think being a little more judicious relative to pricing and what have you, we'll call some of -- one thing as Scott mentioned in his comments, we're not seeing the payoff activity as much. And what we're not going to do is, if we can acquire great families and great businesses in terms of bringing on new relationships, we're going to do it, because that really enhances the value long term for the company.
Jeffrey Allen Rulis - MD & Senior Research Analyst
Great. Let's see. Just wanted to maybe hop over to -- maybe -- well, I got you, Jim. Just on capital as it climbs. I know you've been -- you were conservative through the pandemic, and we've got more clouds forming, but as that capital does climb, it's not on -- you have been quick on the buyback, but any thought there or preserving or kind of eyeing acquisition opportunities to come? Just any thoughts on the capital side?
James Brian Lally - President, CEO & Director
Jeff, I think our posture is that, first and foremost, the capital we can use for our growth objectives, we've got a sound credit quality right now. I think there's a bit of slight recessionary times that we'll all have to combat through all this. So we're going to basically stay put relative to buybacks at this time. On acquisitions, that's a long-term view. We're always interested. We have to figure out when the dust settles, what can we use acquisitions for to enhance the value of the company, but that's something that's a little bit longer term for us at this point.
Jeffrey Allen Rulis - MD & Senior Research Analyst
Okay. And the last one, maybe for Scott, I'd love to just kind of hear just from a high level, as you look at the specialty loan breakout, just wanted to, in a more stressed environment, as you look at -- and I appreciate the breakout of the office detail, that was great. But within the specialty loan book, kind of your highest and lowest credit risk as you see it in those portfolios across SBA, sponsored, life insurance, tax credit. What areas are higher or lower on the risk profile from your perspective?
Scott R. Goodman - President
Yes. I think if you look at the 2 ends of the spectrum there, life insurance premium finance, just given the liquid collateral behind those loans, that's the lower risk end of the profile where we have to watch that portfolio is yield. And we've been pretty steady in terms of our expectations there, and we've been able to get the growth we're looking for. But that's certainly something we can turn off and on a little bit easier. I think on the sponsor finance side, probably not surprisingly at the other end of the spectrum, just given the nature of that book is cash flow based with a little higher leverage profile.
That said, we look really hard at that portfolio. We review every loan in detail quarterly. And right now, we're really pleased with the performance of that book. The leverage is typically in the 3x and under range and coverage is strong. So -- but that would probably be the one that we're continuing to watch closely given the economic environment.
Jeffrey Allen Rulis - MD & Senior Research Analyst
Okay. You put SBA and maybe with the government backing and tax credit, you put those kind of in the middle in terms of risk profile of those 4 categories?
Scott R. Goodman - President
Yes. I would say it's closer to life insurance, right, than sponsor. As I mentioned, we're continuing to be bullish on origination activity there. What we've had to do in terms of holding some of the book though is shift a little bit to a fix structure, which holds some of those loans on the books, but does affect the ability to sell those loans in the market, and we'll just continue to evaluate that risk versus reward as we move forward. But I think that sector, certainly as we see banks pull back from traditional lending, maybe as the yield curve normalizes and if the economy does soften, that's a countercyclical niche that we should do well for us over time.
Operator
Next, we'll go to Andrew Liesch with Piper Sandler.
Andrew Brian Liesch - MD & Senior Research Analyst
Just the funding of the loan growth, recognizing that reinvesting in the securities portfolio, it doesn't sound like that's going to be a priority anymore. So I'm just curious, what are the cash flows coming off that? And then is that going to be sufficient to fund loan growth? It sounds like you're going to be bringing out some FHLB in keeping some of those in the funding mix. Just kind of curious the outlook of funding the loan growth.
Keene S. Turner - Executive VP & CFO
Yes, Andrew, thanks for the question, because I think maybe my comments misled a little bit of where we are. So we do not anticipate long-term remixing out of the investment portfolio in the loans. I think we haven't really remixed anything already. We're just -- we have an investment subsidiary and that cash that we didn't reinvest is just -- it's kind of sitting there. We wanted to get through the next 90 days, so to speak, 60 days, whatever it is. And then, I think, resume balance sheet management as normal.
In our view, the balance sheet has the right size and it has a target for the investment portfolio and where we were at the end of the year largely reflects that. So our assumption when we model out net interest income and margin is that we're going to keep the investment portfolio relatively the same size. Obviously, fair value has moved that around a little bit, but reinvest the roughly $250 million of cash flows that we expect this year. And that -- we think that's a sound approach from an interest rate risk management perspective.
And then I think based on my comments, although maybe the timing of this is uncertain, I think there is a path to generally customer funding the growth that we expect for this year. I think Enterprise has historically struggled to grow deposits in the first half of the year with the commercial base. We've got a lot of tax payments and after year-end bonuses that come out of the system and then certainly what happened in March caused some additional pressure there and maybe put us on our back foot a little bit in terms of use of broker versus overall flows.
But I think our path would be forward that, particularly as we ramp up the effort in recent weeks and then as we move into the second quarter and the remainder of the year that we're able to grow customer funding, we'll have some stabilization of the competition and the remixing in the industry. And while we'll use FHLB to manage the ups and downs of the specialized businesses, we expect that we're going to get growth overall. And we'll generally have some reasonable path to core funding the balance sheet in the second half.
So I think that's our expectation. I think that drives continued opportunity to defend the level of earnings per share and the operating revenue and we don't see it remixing, albeit it might be slightly more profitable in the short term. It creates, I think, some longer-term challenges and that concentrate interest rate risk in an environment where I think we're more exposed to down rates than we probably want to be. So I think it's -- as Jim said, continuing to build the franchise and moving forward with acquisition of relationships and really trying to find the funding along the way.
Andrew Brian Liesch - MD & Senior Research Analyst
Got it. You've covered all the other questions I had, I will step back.
Operator
(Operator Instructions) Next, we'll go to Damon DelMonte with KBW.
Damon Paul DelMonte - MD
I joined kind of late, so I apologize if this was covered. But when you look at the deposit mix, the noninterest-bearing are down to 38% of total deposits from 43% last quarter. Keene, can you just give a little perspective as to kind of where you see the ultimate remixing kind of landing for the noninterest-bearing deposits?
Keene S. Turner - Executive VP & CFO
I would say we don't necessarily have a hard and fast percentage that we've looked at. We are down subsequent to March 31, and that's primarily business flows and tax payments and a lot of that, as you would expect, comes out of DDA. We are seeing some remixing still in the CDs and CDARS shockingly. But we also saw some good activity in the specialized space that's made up for that in the first half of March. So we know it's down, and I think our forecast to guess there's further remixing. Whether that settles in at 35% or 31% or some other magical percentage, I really can't forecast that. I think we generally, to some of Scott's comments, have identified and are tracking vigorously the deposit flows more so than we ever have. And we're just making sure that if something left, we're at the table to follow up and see what we can do to get that back structurally.
So I think our overall expectation is that certainly, deposit costs are going to rise, I'll say, significantly from where they were from the first to the second quarter, but maybe not so materially from the 125 basis points that I indicated we were at in March, and that does assume some level of remixing. And I think that overall, when we look at the overall cost of the deposit base and how it's behaved relative to where Fed funds is and then when we look back historically to where, how it behaved in the overall cost, where it was like in 2019, we're at a similar level of cost for the deposit base today with almost twice the Fed funds rate.
So we feel pretty good about that. And we've got a little bit of room to give there on the DDA percentage while still maintaining net interest income and profitability. So I know you wanted a number, but I don't have a good one there, but that's how we're looking at it and how we're thinking about it.
Damon Paul DelMonte - MD
That's okay. That's good color. And then did you say that the loss on the sub debt security was $5 million?
Keene S. Turner - Executive VP & CFO
Yes. We -- when -- there was no loan growth during the pandemic and PPP, obviously, a lot of banks were issuing sub debt. We participated to a modest degree in both the investment loan portfolio. Signature was one of very few $5 million positions, most were $1 million to $3 million positions and Signature at the time had a better credit rating than we did and was issuing at a nice coupon. And so we bought a small piece of that. So again, not ideal, but we did like we do with everything, we deploy cautiously and we try not to get drunk on anything. And so we're happy we kept that parameter to $5 million.
Damon Paul DelMonte - MD
Okay. So if you back out that $5 million from the loan loss provision this quarter, it kind of leaves you with not much of a provision for this quarter. So how do we kind of think about the provision in the coming quarters?
Keene S. Turner - Executive VP & CFO
Yes. So what's interesting is that the underlying economic data, unemployment and GDP in our model actually improved from the fourth quarter. And I think if you roll back the calendar for the prior 6 or 8 quarters, I mean, we tried to be conservative, because we kept feeling like the economy was going to have a more negative sentiment, and we built a lot of those things into our qualitative factors. And the good news is that credit quality and asset quality continues to be stellar. And with the passage of time, what happens is that the key factors that we have get more and more baked into the forecast. And so we have to be mindful of that and rotate out of that and be intellectually honest with what's going on.
So that's really what's driving that overall composition. And then obviously, also it's just both certain places where the growth -- how the growth formulates in the quarter and where we get the origination activity. So it's really a combination of those 3 factors in addition to a sequential reduction in the level and the reserve for unfunded commitments from 4Q to 1Q that really drove that. So I think you've got a modest provision for new loan growth, but then underlying that, there's some favorable remixing as well as composition between allowance for loan losses and unfunded commitments that's kind of baked net into that provision number.
Operator
Okay. Next, we'll go to Brian Martin with Janney.
Brian Joseph Martin - Director of Banks and Thrifts
Keene, just going back, maybe I missed it as I joined late a little bit as well. Just on your kind of your margin commentary. Just can you talk about just where the March margin was? I think you gave the spot rate for the funding, but just where the March margin was? And just kind of how you're thinking about NII or margin perspective? And I apologize if you already covered that.
Keene S. Turner - Executive VP & CFO
No, I didn't give an actual number. So obviously, first quarter margin was 4.71%, March was 4.64% and then our spot margin right now is just under 4.6%. Loan yield is roughly 6.4%. And then as I indicated, we've got about 1.25% rate that we're assuming on deposits, and we triple check that this morning through the first 24 days of March, and that data is still holding up. So all else equal, as long as that, we've got some level of degradation of funding costs in there for the remainder of April and then May and June. But when we look at that, combined with the growth that Scott and Jim talked about, that's what gets us to the second quarter net interest income dollars potentially being level here to the first quarter.
Brian Joseph Martin - Director of Banks and Thrifts
Okay. And then as far as kind of the balance of the year, it sounded like -- I thought your comment was your hope was to see the dollars of NII sequentially going up in the back half of the year? Is that...
Keene S. Turner - Executive VP & CFO
Yes. I mean -- I think, Brian, the way we're thinking about this is the level of competition intensity and remixing is still there, but it's lessening. And I think all of the big major moves and all the massive shifts out of DDA into CDARS or a CD or just playing out of the bank and having to replace those with incremental funding. I think our sense is that the chunkiness of that is slowing and we'll continue to experience some of that in the second quarter, but that if we can really get much of that remixing behind us, we have the benefit of day count moving forward. And our asset origination is -- we're being as thoughtful as we can about where to allocate that and as disciplined as we can, especially with Scott's comments about others potentially pulling back.
So there is a path to that. Now that's really dependent on the second quarter kind of being the final remixing quarter, so to speak, and being able to get back to some of the business, albeit with higher deposit costs across the industry and for ourselves. So I mean I think there's a path. I think for me to say that I can really predict 2 quarters out from here is extremely challenging. We don't control the environment. But I mean, I think that's how we're thinking about the rest of the year. But even if it's worse than we anticipated and we generally defend the net interest income dollars that we have, I think that still potentially shapes up to be pretty good and pretty strong for us to build on for the upcoming years.
Brian Joseph Martin - Director of Banks and Thrifts
Got you. Perfect. And I think you talked about also lessening some of the asset sensitivity, I guess, is that -- I guess, how are you thinking about potential rate cuts and just kind of managing the balance sheet there if you do see that?
Keene S. Turner - Executive VP & CFO
Yes. So we have done some swaps. So some receive-fixed swaps principally on variable rate loans, we had set out to do a decent portion of that. We've only executed a modest percentage at this point. So if we're going to try to do $500 million to $1 billion, we're at half to 25% of that level. So we're doing something. We'll continue to play that out as the interest rate environment shapes up. We certainly want to do, I think, a little bit more of that to protect the downside. And that is -- we did see the basis point here and some margin in the quarter. So it is having some effect.
But really, the investment portfolio too also helps that. And we're just trying to sit tight and see what happens in terms of pressures to accumulate cash and shrink funding, which creates additional asset sensitivity and then going and putting on a receive-fixed swap. So I think what we're trying to do is resume business as usual and then use the swaps opportunistically to maybe change the downside, minus 100, minus 200 a couple of basis points here and there if there's an opportunity. So that's how we're thinking about it.
Brian Joseph Martin - Director of Banks and Thrifts
Got you. Cool. And then just -- it sounded like, Jim, I know you said that maybe kind of the same stance as last quarter on the buyback. I mean, I guess, just wondering what -- what's kind of -- what is the point where maybe if you're building capital and business kind of goes back to usual, do you get back to looking at the buyback? Or is that something that just you think for the remainder of the year, much of it is probably just off the table just until some of the dust settles here?
James Brian Lally - President, CEO & Director
I think that what you said is correct, Brian. Your lips to God's ears about getting back to normal and when it does, we'll certainly reassess that.
Brian Joseph Martin - Director of Banks and Thrifts
Okay. And maybe just one for Scott. I guess, on the -- just on the trends, I mean, credit quality is just very, very strong. Just on the trends in criticized this quarter, was there anything positive or negative on the criticized front that trend-wise that you're seeing, that you're watching?
Scott R. Goodman - President
No major trends. It's pretty flat, Brian. As I said, we're looking hard. So we feel really good about the quality of the portfolio right now.
Brian Joseph Martin - Director of Banks and Thrifts
Okay. Perfect. And just maybe the last one for me is just, Keene on with some of the lumpiness within fee income. Just any thoughts on -- I mean, the tax business kind of back this quarter from what we saw last quarter. Just how should we think about that? Or just kind of the bigger picture on fee income outside of kind of the lumpiness of the private equity and the CDE.
Keene S. Turner - Executive VP & CFO
Yes, I would say there's really no revelations on the change in the pause around fee income. I think as the environment pressures margin, I think that the tax credit business from a fair value perspective does hedge that slightly, and we saw that last year with some of the negatives last year with margins rapidly expanding. So this quarter was really a reflection of just a modest fair value change. And just even every quarter, even if rates don't change as we move forward, just present value of cash flows. You pick up a couple of hundred thousand dollars, just a fair value. And the longer term, 10-year SOFR rate moves down slightly obviously, your discount rate declines and then you're going to pick some of that back up.
So it's a little bit challenging to predict. The sensitivity hasn't changed about $800,000 for 10 basis points and I think our expectation moving forward is that second and third quarter will be fairly light on the nonrecurring items, and then we'll have a seasonally strong fourth quarter on tax credit and maybe we'll have some private equity or CDE hit along the way. But generally, our expectation is there are a couple of million dollars for each in total.
Operator
And we do have a follow-up question from Jeff Rulis with D.A. Davidson.
Jeffrey Allen Rulis - MD & Senior Research Analyst
Keene, I wanted to quickly follow up on the expense expectation to $83 million to $85 million. A little surprised that we're legging up again, I guess, with the seasonal kind of payroll, 401(k) step-up in the first quarter. I know you mentioned you're fortunate on the deposit costs and expect a step up in commissions. But I'm just trying to figure some of those comp costs in Q1 figured they might roll over a bit, trying to get to where you were in Q1 to continue to increase in the second quarter?
Keene S. Turner - Executive VP & CFO
Yes. Jeff, the way I think about the transition from 1Q to 2Q is that, I think, generally, comp tends to be level. So investments in the business and pick up in other items kind of tends to lag in, maybe it's down a little bit, but the commentary on commissions, I think, reflects more of the continued growth and progress that Scott noted. And then really, the big driver there is just I think the turnaround in the deposit cost. I mean, obviously, we were down in the quarter in the first quarter. So that showed better than we anticipated, but we're -- let's say, we're probably back to the level where if you followed it through and sequence that, we were going to already be in the second quarter.
So it didn't really totally step down, and that's a combination of 2 factors. The space continues to be competitive, and many of the banks that are struggling with funding are larger and fierce competitors in that space, number one. And number two, we continue to grow that business, that underlying business pretty substantially and at a healthy growth rate. And so that also contributes to that expense there. So I hear you on the comp and benefits and maybe we're tinge conservative there with expecting $2.5 million in the run rate, but we are continuing to add 2 positions and strengthen the organization selectively. And so I just -- I don't want to overpromise there. But really, the biggest driver is on that deposit business.
Jeffrey Allen Rulis - MD & Senior Research Analyst
I appreciate it. And I just wanted to confirm -- is that $83 million to $85 million, is that good for the remainder of the year or just 2Q alone, and then we'll review?
Keene S. Turner - Executive VP & CFO
I think deposit service charges continue to move up throughout the year. I think we expect that business to continue to grow and expand and then to the extent that there's any interest rate increases, that moves up for 25 basis points, that moves up probably $0.5 million a quarter just from a rate increase. So for what it's worth in terms of how to think about that and whatever you're putting in your models for Fed funds.
Operator
Okay. And I show that there are no further questions at this time. I'll now turn the call back over to Jim Lally, President and CEO, for any additional or closing remarks.
James Brian Lally - President, CEO & Director
Thanks, David, and thank you again for joining us this morning and your continued interest in our company. Everyone, have a great day, and we will talk again at the end of the second quarter. Thank you.
Operator
This does conclude today's conference call. You may now disconnect.