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Operator
Good day, and welcome to the First Financial and MainSource Merger Announcement and Second Quarter 2017 Earnings Conference Call and webcast.
(Operator Instructions) Please note this event is being recorded.
I would now like to turn the conference over to Mr. Scott Crawley, Corporate Controller.
Please go ahead.
Scott Crawley
Thanks, Allison.
Good morning, and welcome to the First Financial Bancorp and MainSource Financial Group Merger Announcement and Second Quarter 2017 Earnings Conference Call and Webcast.
The merger press release and the company's slide presentation issued yesterday and First Financial second quarter earnings release and the company's presentation are available on First Financial's website at www.bankatfirst.com under the Investor Relations section.
MainSource's second quarter earnings release is available as well on the company's website at www.mainsourcebank.com, also under Investor Relations.
We will make reference to the slides contained in the presentation accompanying yesterday's merger announcement during today's call.
Additionally, please refer to the forward-looking statement disclosure contained in the second quarter 2017 earnings release, as well as the SEC filings for a full discussion of the company's risk factors.
The financial information provided today is accurate as of June 30, 2017, and First Financial and MainSource will not be updating any forward-looking statements to reflect facts or circumstances after this call.
Participating on today's call from First Financial will be Claude Davis, Chief Executive Officer; Tony Stollings, Chief Banking Officer; and John Gavigan, Chief Financial Officer.
Also joining us today from MainSource are Archie Brown, Chairman, President and Chief Executive Officer; and Jimmy Anderson, Chief Financial Officer.
I will now turn the call over to Claude Davis.
Claude E. Davis - CEO & Director
Thank you, Scott, and good morning, everyone.
Thanks for joining us on today's call.
We are obviously very pleased and excited to announce the strategic merger between First Financial and MainSource.
We both believe we are bringing together 2 strong companies with shared cultures to create a high-performing bank serving communities throughout the Midwest.
As Scott mentioned, in addition to the management team from First Financial, we also have 2 important guests with us from MainSource to help discuss the transaction.
Archie Brown, Chairman, President, and CEO; and Jamie Anderson, CFO.
Due to the timing of the announcement in conjunction with our respective second quarter earnings releases, we're going to take a few minutes for some comments on quarterly results for both companies and then focus the rest of our discussion on the merger.
At the conclusion, we will open the call for questions.
With that, I'll now turn the call over to Tony and Jamie for remarks on quarterly results.
Tony?
Anthony M. Stollings - President & Chief Banking Officer
Thank you, Claude.
Yesterday afternoon when we announced our financial results for the second quarter, including net income of $22.7 million or $0.37 per diluted share, representing another solid quarter of performance and our 107th consecutive quarter of profitability.
Year-to-date through the second quarter, we have [grown] earnings per share 12% compared to the same period last year.
Our second quarter results reflect consistent earnings, strong loan and deposit growth, disciplined expense management and solid credit metrics.
Though overall performance fell slightly short of our expectations, primarily related to the net interest margin.
From a balance sheet perspective, the quarter's loan growth of $120 million was exceptionally strong as both Commercial and Commercial Real Estate contributed to an annualized end-of-period linked-quarter growth rate of 8.3%.
Average deposits grew $128 million during the quarter as increases in both savings and noninterest-bearing deposits more than offset the intentional runoff of [brokered CDs].
Credit metrics also improved as declines in nonperforming and classified assets helped offset the impact from a small net increase in nonaccrual loans during the period.
Earnings in the income statement.
Net interest margin underwhelmed and weighed on an otherwise solid performance.
Net interest income was $68.5 million, down slightly from the first quarter as higher interest income earning assets was offset by a sharp decline in loan fees and increased funding costs.
Reflecting these impacts as well as the balance sheet fluctuations during the period, our net interest margins declined 14 basis points to 3.56% on a fully tax-equivalent basis.
Slide 6 in our second quarter earnings deck provides additional margin details for the quarter, showing a decline in loan prepayment fees was the primary driver of the lower margin, though higher nonaccrual loan balances, our earning assets and [funding mix] and other factors contributed as well.
It's worth noting that, while prepayment fees can be volatile and the declines negatively impacted income to margin for this quarter, our preference over the long term is always to retain client relationships as well as earning asset balances.
As to go-forward expectations, our near-term outlook is for the basic net interest margins to remain stable, while loan fees could create volatility in either direction.
We're certainly disappointed with the margin performance this quarter and are taking steps to improve margins and offset the bottom line impact.
First, we are increasing monitoring efforts around loan pricing and assets yields, balancing this with competitive market pressures.
Second, we are taking steps to lower deposit costs, including a shift away from the index money market product towards more managed [rate] products.
Third, we continue to focus on strategies to grow noninterest income, and have seen year-over-year improvements from strategies implemented last year.
Fourth, we have accelerated efficiency efforts [aimed at bringing] our quarterly operating expense base down to approximately $50 million per quarter.
As a result, we have lowered our full year expense guidance to 1% to 2% growth, excluding one-time charges associated with those efforts.
We believe these efforts will help improve margins and bottom line results for future periods.
Finally, we are optimistic that the late second quarter loan production and solid near-term pipeline expectations position us for continued growth during the second half of the year.
With that, I will turn the call over to Jamie for some comments on MainSource's second quarter results.
James Michael Anderson - CFO and EVP
Thank you, Tony.
We also announced our financial results yesterday after [viewing the] second quarter of 2017, and we were pleased with our overall performance.
Excluding nonoperating items primarily related to the acquisition of FCB Bancorp, operating income was $13.6 million, which represents earnings per share of $0.53 and an 18% increase from $0.45 a year ago.
The addition of FCB Bancorp in late April, organic loan growth over the past 12 months and a strong net interest margin were key drivers of our improved earnings performance.
In addition, we are achieving the operating leverage that we expected from our recent acquisitions, which helps drive our core efficiency ratio to 60% in the second quarter.
While we were pleased with our earnings for the quarter, we did not achieve the loan growth we anticipated.
Loan balances, excluding the loans acquired in the FCB acquisition, were virtually flat on a linked-quarter basis as loan origination activity was softer than expected.
However, our loan pipelines indicate stronger performance and we are optimistic that we can achieve loan growth in the second half of 2017, similar to our historic norms of mid- to high- single digits.
Despite the lack of [loan growth, our] net interest margin remained strong and was 3.77% for the second quarter of 2017.
This was an increase of 1 basis point on a linked-quarter basis and an increase of 14 basis points from the same period a year ago.
A slight increase in purchased accounting accretion and the ability to lag deposit pricing and the stagnant short-term rates higher led to the increase in the margin.
Credit quality remained excellent during the second quarter as nonperforming loans declined on a linked-quarter basis.
In addition, net charge-offs were at historic lows at only 2 basis points on an annualized basis.
Credit quality trends, coupled with flat loan balances, resulted in a lower level of loan loss provision expense for the second quarter.
As previously mentioned, we completed our acquisition of FCB Bancorp during the second quarter.
This transaction closed on April 30, and we converted operating systems in late June.
With the addition of their 7 branches and 365 [loans and] deposits, we improved [to 9th] in market share and (inaudible).
So far, the transition has gone very well, and we are excited to have a meaningful presence (inaudible).
I will now turn the call back over to Claude to discuss the transaction.
Claude E. Davis - CEO & Director
Thank you, Jamie.
Before we discuss the details of the merger, I want to take the opportunity to welcome our future colleagues from MainSource.
We believe this is an excellent partnership for both parties, and look forward to working with you and your team to grow and enhance the excellent franchise you've worked so hard to establish.
Turning our attention to Slide 4 in the investor deck.
After the market closed yesterday, we announced that we've entered into an agreement to merge with MainSource, creating a high-performing $13 billion Midwest community bank.
In our view, this is a transaction that meets each of the criteria one could hope for in a deal of this magnitude.
Geographically, we view each other as complementary across Ohio, Indiana and Kentucky.
With continued expansion in key markets such as Cincinnati and Indianapolis as well as MainSource's recent entry into the attractive (inaudible) market, we believe that MainSource is a perfect complement to First Financial's existing franchise.
Operationally, these 2 banks have long (inaudible) histories built on strong core values.
The more time we spent discussing [this essential] combination, it became [clear to us how] similar our cultures and operating philosophies are.
As a result, we believe the organization will integrate in a smooth and efficient manner.
We have known and competed with MainSource for quite some time, and our comprehensive due diligence process confirm a strong cultural fit, solid credit portfolios, complementary operational strength and ability to combine management and key associates to assist with the transition and help grow this collective franchise going forward.
Finally, as we currently sit at $8.7 billion in assets, First Financial has evaluated the pros and cons of growing through the $10-billion asset threshold and weighed our potential strategic options.
By moving above $13 billion, we believe this transaction serves as an efficient and effective means of offsetting cost and moving beyond this critical threshold.
In terms of the economic impact, we believe we have structured the deal to be financially attractive for both parties, with room for upside for all shareholders.
Additionally, both companies have a history of successful acquisitions, which we believe serve us well in estimating potential cost saves as well as planning and executing the integration, resulting in a lower risk.
We [have vetted] the diligence process for over 2 months now, and have been preparing for crossing $10 billion for several years.
So we feel we are well prepared to move forward together successfully.
John will walk through the financial details of the transaction shortly, with the assumption used in transaction modeling as well as detail on our preparation for opting the $10 billion threshold.
On Slide 5 of the investor presentation, we give you a view on just how complementary our geographic footprints are.
While we have coexisted and competed in certain markets for years, this transaction introduces several new markets to both institutions.
The combined map also depicts the significant level of geographic redundancy we have, which drives the expected efficiencies we will discuss in greater detail later.
On Slide 6, we're illustrating the relative contribution of these 2 quality institutions and why this is viewed as a collaborative process from the offset of our -- outset of our conversations.
Both companies bring strong balance sheets and capital to the partnership.
Turning to Slide 7. MainSource's loan portfolio is the high-quality, low-risk portfolio that complements our [loaning] profile going forward.
Together, we will continue to maintain a diversified portfolio.
Most importantly, we believe that our broad commercial product suite and experience will create additional lending opportunities across MainSource's existing customer base and new markets.
Looking at Slide 8, I do want to spend a moment to talk about the strength of MainSource's retail base.
MainSource has an excellent franchise and favorable composition deposits, 97% of which are core, which generates an extremely low deposit cost at 16 basis points.
This is significantly more favorable than our own franchise and moves are across from 53 to 40 basis points on a combined basis.
We still believe that core funding is a critical component [to be in] banking, and we are excited to leverage MainSource's strength in retail banking across our footprint going forward.
Turning to Slide 9. Slide 9 covers the terms of the merger, with MainSource's shareholders having the right to receive 1.3875 shares of First Financial common stock for each share of MainSource stock that they own.
This is an all-stock deal with a [fixed] exchange ratio, so the economics are effectively fixed as the deal value and effective purchase price per share will move in tandem with First Financial's stock price.
Based on Tuesday's closing prices, this translates to a purchase price of [$38.99] per MainSource share or an approximately 15% premium to their closing price on Tuesday.
Upon closing of the merger, MainSource's shareholders grown approximately 37% as a combined company.
All of MainSource's options and warrants will carry over and be exercised [both for] First Financial stock under their respective terms.
Our company's headquarters will remain here in Cincinnati, and we anticipate the deal will close in the first quarter of next year.
We have collaborated to assemble an executive team, utilizing the talents of both organizations.
Upon closing the transaction, I will assume the role of Executive Chairman, and Archie will become President and CEO of the combined company.
Together, we will join (inaudible) strategy, management and performance.
We will also join the (inaudible) transition team to ensure a successful cultural integration.
A broader view of the team going forward is located in the appendix of the slide presentation.
Before we discuss some of the financial details of the merger, I'd like to turn the call over to Archie to share some of his thoughts regarding their strategic rationale for this combination.
Archie?
Archie M. Brown - Chairman, CEO & President
Thank you, Claude.
First of all, I would like to thank Claude and his team.
This has been a very collaborative process from the beginning.
We're very excited about the -- combining with First Financial Bancorp and the opportunities that lie ahead.
As you heard from Claude and will hear more detail from John in just a minute, this is a very compelling financial and strategic partnership that's both attractive to shareholders today as well as longer term.
In the last decade, we've made significant progress moving our company from a rural franchise with limited top line growth to one that now has close to half of its footprint in nearby metropolitan markets with an ability to consistently grow earning assets.
Even so, to move to a higher level requires that we make significant additional investments in these markets.
Doing so would likely have a much larger impact on our expenses over the intermediate term, then on the growth and assets and revenue.
Additionally, while in recent years, we've have made progress in printing our large number of branches, we continue to have a [structurally inefficient] branch network that will be exceedingly difficult to pair to a level needed to be competitive in the long term.
From a strategic view, this combination accelerates our plans for the footprint by several years.
We further benefit from combining the talent of 2 excellent banking companies with complementary franchises and filling gaps that we both currently have across the different aspects of our respective businesses.
Particularly, we're excited about the ability to leverage the [wealth-management] platform at First Financial across our branch network, which would have taken -- otherwise, taken years to build on our own.
This is a [powerful] combination.
We anticipate the combined company will be a top [quartile] performer from day 1, and we will be much better positioned for long-term growth and success, with the scale and strength [we won] the leading Midwest banking institutions.
We are very pleased with the positive impact this merger will have on the MainSource shareholders.
We are receiving a very attractive premium of over 15% at a time when we're trading at historically high levels, along with approximately 10% earnings per share accretion and a significant increase of approximately 40% in common dividends to shareholders today.
We [believe for these] strategic and financial reasons that partnering with First Financial represents an outstanding opportunity for our shareholders.
At this point, I'll turn the call over to John for additional comments on the transaction.
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Thank you, Archie.
Looking at the assumptions and financial impact on Slide 10, we believe we have agreed to a deal with pricing and economics that are attractive on many levels for the combined company and its shareholders.
Excluding one-time costs, we expect partial year earnings accretion in 2018 of approximately $0.09 per share or 5%.
An accretion of approximately $0.17 per share or 9% in 2019, which reflects the first full year of cost savings.
Tangible book value dilution at close is estimated to be 5.4%, and we project [to earn that back] in 3 years using the standard (inaudible).
Based on a simple earned-back method, we would earn back the dilution in a little under 4 years using 2019 earnings accretion.
And we calculate an internal [risk] rate of return in the upper teens, exceeding our internal [hurdles].
Regarding cost saves, both management teams spent a significant amount of time working together to identify efficiency opportunities.
We have identified 45 to 50 branches that can be consolidated, and expense reductions across both companies totaling approximately 13% of the combined current expense base, which we believe is conservative given the M&A expertise at both institutions and our demonstrated ability to execute.
We have performed a detailed credit review of each other's loan portfolios and have assumed a conservative 1% loan mark or 20 basis points when netted against MainSource's current reserves, along with several other fair value marks as shown here on the slide.
As a result of moving over $10 billion in assets upon closing, our estimates reflect 3 specific adjustments to account for that impact.
First, a combined $12 million pretax reduction in annual interchange fees from the Durbin Amendment.
Second, a $2 million pretax increase in annual regulatory and compliance cost, predominantly related to additional stress testing requirement and heightened regulatory oversight.
And third, a $500,000 after-tax reduction in annual dividend payment on Federal Reserve preferred stock due to the (inaudible).
In terms of timing, we expect the Durbin Amendment to be applicable in the back half of 2019 and fully phased-in for 2020.
While the other 2 adjustments are expected to have a 50% phase-in during 2018 and 100% thereafter.
As Claude mentioned earlier, this deal certainly helps offset the cost of crossing the $10 billion asset threshold.
Isolating this impact, the $10 billion [hurdle] reduces our combined net income by approximately $9.6 million after taxes or $0.10 per share after the merger.
This is fully reflected in our earnings accretion estimates.
Turning to Slide 11.
In terms of impact to the financial metrics, we obviously moved to over $13 billion in assets on a combined basis or closer to $14 billion if further organic growth expected between now and transaction closing to consider.
Given the all-stock nature of the deal, our strong capital levels carry through to the combined company, and we believe that we will be well positioned for further growth, whether organic or by acquisition, once the merger is completed and successfully integrated.
On a fully [phased-in] basis, this transaction results in an increase to our return ratios, with return on assets increasing approximately 17 basis points, and return on tangible common equity improving by approximately 150 basis points.
With respect to the combined efficiency ratio, we believe the merger will enable us to move into the low 50% range.
On Slide 12, with respect to the due diligence process, again, we feel that being experienced and disciplined acquirers gives us an advantage in successfully integrating the 2 companies.
Both companies performed extensive, mutual diligence over a few-months period, focusing on credit, cost structures, branch networks, regulatory and compliance, legal, as well as other areas.
Neither parties identified any material risks to moving forward.
There is a possibility of a handful of required branch divestitures due to deposit concentration, but this is very limited in our view and should not have a material impact on our financial results or strategy.
In terms of $10 billion [preparedness], First Financial has been preparing for this hurdle for several years.
We believe we are well positioned to address these additional requirements, (inaudible) have accounted for all the various material costs that are incremental to our standalone forecast and our modeling assumptions.
Finally, on Slide 13, as we speak about integration, we also want to note that we have not included revenue synergies in our modeling.
However, we do see potential revenue upside in a few areas.
First, commercial earning asset group.
We believe we can advance our expertise in commercial lending across MainSource's customer base and geographic markets to create incremental lending volume.
Second, we also believe that [we can apply the] tenet of MainSource's successful consumer retail culture across our own existing customer base to attract new customers and generate additional business.
Third, we see additional cross-sell opportunities for our wealth management business, including our retirement planning and private banking services.
Fourth and finally, we see scale advantages to further optimizing our balance sheet and attracting some larger clients.
This concludes my comments, and I will now turn the call back to Claude.
Claude E. Davis - CEO & Director
Thanks, John.
I believe that we've now covered everything, but I would like to reiterate a real excitement about this combination.
We believe that First Financial and MainSource together will be significantly better positioned to serve our clients, communities and shareholders.
We look forward to spending the rest of the year focusing on smooth transition and positioning the combined company for continued success in the years to come.
As we prepare to open the call up for questions, I'll just briefly mention that in the interest of time and to be respectful of Archie and Jamie's availability, we'd like to focus questions on -- questions regarding the merger first, but certainly if there are questions pertaining to second quarter results for either company, we ask you to just hold those for the end or that you follow up with John or Jamie directly following this morning's call.
They will be happy to discuss any of those questions with you.
With that, Allison, I'll turn the -- turn it over to you to open the call up for questions.
Operator
(Operator Instructions) And our first question will come from Chris McGratty of KBW.
Christopher Edward McGratty - MD
Claude, maybe I start with just kind of a strategic question on the margin.
Obviously, this quarter had some pressures, but I think one of the merits of the deal is the funding -- the low-cost funding that MainSource brings.
Could you comment on how you see the transition of the deposit base from the lower-network deposits that have higher betas towards the more granular retail and how that's going to affect the margin maybe into next year?
Claude E. Davis - CEO & Director
Sure, Chris.
I'll (inaudible) and John can add anything he'd like, or Jamie.
One of the things that we see in this combination, obviously, a lot of strategic cultural fits.
Obviously, we also feel like that our business models fit well together.
And clearly, one of the real things that MainSource has done exceptionally well is to build an attractive low-cost deposit base and it's one that we think fits well with our asset growth platform as well as their asset growth platform.
And with our -- we feel good about our deposit base.
We think we've done a good job of building in as well.
We have had some migration more towards some of our money market accounts, which we're working to change.
So yes, I think this fit is very solid, and I think you'll see a positive and a market impact as a result.
And it obviously [manifests itself in the] EPS accretion as we -- that we [vowed] on.
John, if you would add anything to that.
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, Chris, I'll just add a few comments and I'll speak maybe a little bit more towards the current quarter and kind of near term.
Certainly, the margin fell short of our expectations here in the second quarter.
As Tony said, it weighed on an otherwise solid performance.
Outside of the impact on the loan fees, there are a number of variables that impacted the margin, and that's why we gave some of the additional details in the earning slide presentation as we did.
But ultimately, I would say, we didn't see the list that we expected on the asset side as a result of some of those variables that I mentioned.
So we're facing steps to improve the margin as they focus both on the asset side here as well as kind of shifting course a little bit on the funding side.
We had focused on some of the index deposits, which we were okay with when we expected the asset side to move up with that.
Since we're not seeing that, that's really what's driving us to make that shift there and focus on mandatory deposits a little more so going toward and trying to bring those costs down.
And then I would add to that, to some of Tony's comments earlier, I mean, in addition to the kind of balance sheet management strategies, continuing our efforts around noninterest income strategies as well as managing expenses even further to offset any bottom line impact.
Christopher Edward McGratty - MD
Okay, great.
If I can just sneak one in.
In terms of the follow-up between the margin outlook and the expenses.
I think you said 50 a quarter, it was kind of a near-term expectation.
You guys have had a lot of success keeping expenses controlled.
If we're kind of thinking about the 2 items together, does the dynamic of the margin -- is that more of a -- a bit of the headwind net of the expense opportunities that you see?
Or can you kind of -- as you look out a few quarters, perhaps get to kind of a breakeven between the two?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, I think, Chris, it's more of the latter and we're very focused on, as I've said, offsetting any online impact there and not letting it impact our full year results.
Operator
Our next question will come from Kevin Reevey at D.A. Davidson.
Kevin Kennedy Reevey - Senior VP & Senior Research Analyst
So either -- this question is for either John or Jamie.
How -- in your modeling for the deal, have you made any assumptions about any deposit attrition in your numbers?
And if so, what kind of deposit attrition are you assuming?
And this is on the MainSource part of the deal.
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, sure.
Kevin, this is John.
We've assumed some level of revenue loss related to the branch consolidation, and that's embedded in that cost save figures that we disclosed there.
We did not expect significant deposit attrition as a result of this.
I mean, both companies have a pretty strong track record of retaining their core deposit base.
And we expect to continue that going forward.
Kevin Kennedy Reevey - Senior VP & Senior Research Analyst
Great.
And then, Jamie, if I heard you correctly, do you say that there will be limited branch closures, and this should be -- have a pretty much a negligible effect on the outlook and assumptions?
James Michael Anderson - CFO and EVP
No, actually in the investor deck and in our comments, the branch closures -- because of the overlapping branches, that's a critical part for us getting to the cost savings, and we are projecting between 45 and 50 branch closures/consolidations.
Operator
Our next question will come from Erik Zwick of Stephens Inc.
Erik Edward Zwick - VP and Research Analyst
First Financial has traditionally been more of a commercial-focused bank, while MainSource has been more balanced between commercial and retail.
What would you expect that the growth mix of the pro forma company to look like?
Claude E. Davis - CEO & Director
I'll start.
This is Claude.
I -- yes, I think we would expect continued balance in all of those areas.
We don't see [that this would stump] the growth of anything that MainSource has traditionally done nor what we at First Financial has traditionally done.
And I think that said, we see it as a real synergy of this combination.
And then, in fact, we feel like there's things we can learn from each other to actually accelerate growth in areas.
I know it's certainly on the First Financial side, we feel like there are some areas that we can accelerate our growth in learning some of the things that MainSource has been successful at.
So we just see this as a real synergistic and value-add.
I don't know, Archie, if you'd add.
Archie M. Brown - Chairman, CEO & President
Sure.
Yes, Erik, this is Archie.
We -- I (inaudible) We look at this [and said] if you look at First Financial on the commercial side, we think they are ahead a little bit of us, and what they have developed and [how robust their] commercial business [is and] we think that's going to be a real positive to lay over on our footprint.
And then (inaudible), we think [when we go over] to the retail side is a strength for us and we will able to, again, put that on both companies and grow the retail business.
And then, First has a really robust and holistic wealth management business that we think will help our franchise.
So very complementary.
I think we'll see growth in all the key business lines as a result.
Erik Edward Zwick - VP and Research Analyst
And then would you expect any material change to the interest rate sensitivity profile of the pro forma company relative to the legacy First Financial?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, Eric, this is John.
Based on our modeling, we're moderately asset-sensitive, MainSource is moderately liability-sensitive.
We project on a pro forma basis that we'll be relatively neutral.
Operator
(Operator Instructions) Our next question will come from Andy Stapp of Hilliard Lyons.
Andrew Wesley Stapp - Analyst for Banking
Would you provide some details on the timing of the cost savings?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, sure, Andy.
This is John.
As we said on the -- in the prepared remarks, we expect the deal to close some time during the first quarter of 2018.
So you expect to realize approximately 75% of the cost saved in the first 12 months post-close, and then 100% thereafter.
Andrew Wesley Stapp - Analyst for Banking
Okay.
And when will the systems conversion occur?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Given a first quarter '18 expected closing, we would expect system conversions to take place some time 45 to 90 days post-closing.
So probably mid- to late-second quarter 2018.
Andrew Wesley Stapp - Analyst for Banking
Okay.
And would you provide some color on MainSource's retail CRE loans?
Archie M. Brown - Chairman, CEO & President
Andy, this is Archie.
The -- it's just very granular.
Quite a bit of that came over from a couple of the recent acquisitions first half [when we will] -- had a very granular, small, kind of, dollar retails (inaudible) portfolio, that's very stable, performs well.
We don't really have any kind of credit tenet -- national credit tenet kind of exposure in most of the portfolios.
So it's strong, solid smaller dollars performs well with limited risk and some of the things that you read about today.
Andrew Wesley Stapp - Analyst for Banking
Okay.
And then if I could get in one last question.
How would the deal impact the effective tax rate for First Financial?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, Andy, this is John.
If you look at our effective tax rate, approximately 33%.
MainSource, obviously, historically, has gone at a slightly lower effective tax rate, kind of in the upper -- mid-upper 20% range there.
On a pro forma basis, we expect a lot of [flat] tax planning strategy that MainSource has (inaudible) to carry over this combined companies, so it will be a blend and will probably be in the low 30% range.
Operator
Our next question will come from Nathan Race of Piper Jaffray.
Nathan James Race - Research Analyst
Quick question on capital levels.
Obviously, the deal is going to be accretive across most levels.
But was just curious if the transaction changes your thinking in terms of having the ATM program that was announced in March?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, Nathan, this is John.
If you look at the pro formas on Slide 11 of the investor presentation, the capital ratios on a pro forma basis really don't change materially.
So I don't really see a change in our view on capital right now.
We think on a combined basis we'll be -- we'll continue to be well capitalized and positioned for further growth.
Nathan James Race - Research Analyst
Got you.
And what kind of growth assumptions are you assuming at the pro forma company as we get into late 2018 and early 2019?
Claude E. Davis - CEO & Director
We both followed a, kind of, mid to -- mid-single digits to mid-to-high single-digit type organic growth model.
So we just assumed those as a part of our transaction.
Operator
(Operator Instructions) Our next question will come from Alexander Hamilton with MainSource.
Unidentified Analyst
I just want to ask a quick question.
So how will this affect our (inaudible), like, interest rates.
Do we expect any, like, big change with that?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Are you talking about deposit rates?
Unidentified Analyst
Yes.
Archie M. Brown - Chairman, CEO & President
No, I think we will continue to run the retail business, I think, very similar.
Both companies do it very similarly already.
So we'll continue to do what I think we're customed to doing.
Operator
And our next question will come from Daniel Cardenas with Raymond James.
Daniel Edward Cardenas - Research Analyst
Just a quick question.
Pro forma concentration ratios, what would those numbers look like for your CRE portfolio and your construction portfolio as a percentage to risk capital -- risk-related capital?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, Dan, we've included those on Slide 7 of the investor presentation kind of in the middle-left side of the slide.
Pro forma basis, 51% construction and development and 218% on the CRE.
So well below the kind of regulatory guidelines there.
Daniel Edward Cardenas - Research Analyst
Perfect, perfect.
All right.
And then, I know you just announced this deal, but as you think about the transaction once it closes, I mean, do you have an appetite for additional M&A?
Or is that kind of on the shelf as you digest this pretty sizable deal?
Claude E. Davis - CEO & Director
Dan, I'll start.
This is Claude.
I think we're going to focus for now on getting this deal integrated and make sure our associates and clients and communities are taken care of.
And once we get through that, as Archie and I talked about, certainly we'd like to see, looking forward, obviously, not on the organic growth side, but also are there other partners out there that would make sense for us, but that's well down the road once -- we need to get through this integration first.
Daniel Edward Cardenas - Research Analyst
And then last question here.
The one-time costs associated, are those going to get spread out throughout the remainder of this year in Q1?
Or is it mostly a Q1 event?
John M. Gavigan - CFO, SVP and CFO of First Financial Bank
Yes, it's probably about 50-50 premium post-close.
Operator
And having no further questions, this will conclude our question-and-answer session.
I would like to turn the conference back over to Mr. Claude Davis for any closing remarks.
Claude E. Davis - CEO & Director
Great, Allison.
Thank you.
And again, thanks for -- everyone, for your interest in First Financial and MainSource.
And again, just to reiterate, how excited I think we both are at the potential of this combination.
So thank you for joining our call today.
Operator
The conference has now concluded.
Thank you for attending today's presentation.
You may now disconnect your lines.