First Midwest Bancorp (ONBPP) 8-K Results of Operations and Financial Condition

		Exhibit 99.1
	FOR IMMEDIATE RELEASE

FIRST MIDWEST BANCORP, INC. ANNOUNCES

2017 SECOND QUARTER RESULTS

ITASCA, IL, July 25, 2017 - First Midwest Bancorp, Inc. (the "Company" or "First Midwest") (NASDAQ NGS: FMBI), the holding company of First Midwest Bank (the "Bank"), today reported results of operations and financial condition for the second quarter of 2017. Net income for the second quarter of 2017 was $35.0 million, or $0.34 per share. This compares to $22.9 million, or $0.23 per share, for the first quarter of 2017, and $25.3 million, or $0.31 per share, for the second quarter of 2016.

Reported results for all periods presented were impacted by certain significant transactions, which include acquisition and integration related expenses associated with completed and pending acquisitions. Excluding these certain significant transactions, earnings per share ⁽¹⁾ was $0.35 for the second quarter of 2017, compared to $0.34 for the first quarter of 2017 and $0.32 for the second quarter of 2016.

SELECT SECOND QUARTER HIGHLIGHTS

• Increased earnings per share to $0.35, up 9% from the second quarter of 2016 and 3%, or 12% annualized, from the first quarter of 2017, excluding certain significant transactions ⁽¹⁾.

• Improved return on average tangible common equity to 13.37%, up from 11.94% for the second quarter of 2016.

• Grew loans to $10.2 billion, up 28% from June 30, 2016 and 7% annualized from March 31, 2017.

• Expanded net interest income to $118 million, up 31% from the second quarter of 2016 and 2% from the first quarter of 2017.

• Increased net interest margin to 3.88%, up from 3.72% for the second quarter of 2016 and consistent with 3.89% for the first quarter of 2017. Excluding acquired loan accretion, net interest margin ⁽¹⁾ grew 9 basis points to 3.60% from the first quarter of 2017.

• Grew fee-based revenues to $41 million, an increase of 15% from the second quarter of 2016 and 9% from the first quarter of 2017.

• Improved efficiency ratio ⁽¹⁾ to 59%, down from 61% for both the second quarter of 2016 and the first quarter of 2017.

• Increased dividends per share to $0.10, up 11% from the second quarter of 2016 and the first quarter of 2017.

"Performance for the quarter was strong, reflective of balanced delivery across our business," said Michael L. Scudder, President and Chief Executive Officer of the Company. "Earnings per share of $0.34 stood 10% higher from a year ago, benefiting from the expected revenue growth and improved operating efficiency accompanying our successful acquisition of Standard Bancshares in early January. Lending activity was solid, with late quarter closings providing added earnings momentum. At the same time, targeted efforts to expand and diversify our fee-based revenues are also evident, up 9% compared to last quarter."

Mr. Scudder concluded, "As we look ahead, we continue to navigate the backdrop of a more favorable rate environment as well as elevated market competition. As we do so, our focus remains centered on those actions that accrue to the long-term benefit of our shareholders – helping our clients to achieve financial success."

⁽¹⁾ These metrics are non-GAAP financial measures. For details on the calculation of these metrics, see the sections titled "Non-GAAP Financial Information" and "Non-GAAP Reconciliations" presented later in this release.

First Midwest Bancorp, Inc. | One Pierce Place | Suite 1500 | Itasca | Illinois | 60143

OPERATING PERFORMANCE

Net Interest Income and Margin Analysis

(Dollar amounts in thousands)

	Quarters Ended
	June 30, 2017							March 31, 2017							June 30, 2016
	Average Balance			Interest			Yield/ Rate (%)	Average Balance			Interest			Yield/ Rate (%)	Average Balance			Interest			Yield/ Rate (%)
Assets:
Other interest-earning assets	$	262,206		$	686		1.05	$	215,915		$	441		0.83	$	300,945		$	426		0.57
Securities (1)	1,983,341			11,482			2.32	2,021,157			11,535			2.28	1,721,781			10,636			2.47
Federal Home Loan Bank ("FHLB") and   Federal Reserve Bank ("FRB") stock	57,073			441			3.09	54,219			368			2.71	42,561			200			1.88
Loans (1)	10,064,119			115,949			4.62	9,920,513			113,409			4.64	7,883,806			87,481			4.46
Total interest-earning assets (1)	12,366,739			128,558			4.17	12,211,804			125,753			4.17	9,949,093			98,743			3.99
Cash and due from banks	188,886							176,953							154,693
Allowance for loan losses	(92,152		)					(89,065		)					(80,561		)
Other assets	1,497,370							1,373,433							945,291
Total assets	$	13,960,843						$	13,673,125						$	10,968,516
Liabilities and Stockholders' Equity:
Interest-bearing core deposits (2)	$	6,025,167		1,705			0.11	$	5,837,150		1,497			0.10	$	4,941,779		991			0.08
Time deposits	1,538,845			2,024			0.53	1,515,597			1,712			0.46	1,277,694			1,491			0.47
Borrowed funds	553,046			2,099			1.52	734,091			2,194			1.21	461,363			1,499			1.31
Senior and subordinated debt	194,819			3,105			6.39	194,677			3,099			6.46	162,836			2,588			6.39
Total interest-bearing liabilities	8,311,877			8,933			0.43	8,281,515			8,502			0.42	6,843,672			6,569			0.39
Demand deposits (2)	3,538,049							3,355,674							2,771,813
Total funding sources	11,849,926							11,637,189							9,615,485
Other liabilities	280,381							272,398							117,534
Stockholders' equity - common	1,830,536							1,763,538							1,235,497
Total liabilities and   stockholders' equity	$	13,960,843						$	13,673,125						$	10,968,516
Tax-equivalent net interest   income/margin (1)				119,625			3.88				117,251			3.89				92,174			3.72
Tax-equivalent adjustment				(2,042		)					(2,054		)					(2,193		)
Net interest income (GAAP) (1)				$	117,583						$	115,197						$	89,981
Impact of acquired loan accretion (1)				$	8,757		0.28				$	11,345		0.38				$	4,927		0.20
Tax-equivalent net interest income/   margin, excluding the impact of   acquired loan accretion (1)				$	110,868		3.60				$	105,906		3.51				$	87,247		3.52

⁽¹⁾ Interest income and yields on tax-exempt securities and loans are presented on a tax-equivalent basis, assuming a federal income tax rate of 35%. The corresponding income tax impact related to tax-exempt items is recorded in income tax expense. These adjustments have no impact on net income. For further details on the calculation of tax-equivalent net interest income/margin, net interest income (GAAP), and tax-equivalent net interest income/margin, excluding the impact of acquired loan accretion, see the sections titled "Non-GAAP Financial Information" and "Non-GAAP Reconciliations" presented later in this release.

⁽²⁾ See the Deposit Composition table presented later in this release for average balance detail by category.

Net interest income increased by 2.1% from the first quarter of 2017 and 30.7% compared to the second quarter of 2016. The rise in net interest income compared to the first quarter of 2017 resulted primarily from higher interest rates and loan growth, partially offset by a decrease in acquired loan accretion. Compared to the second quarter of 2016, higher interest rates, combined with loan growth and the acquisition of interest-earning assets and acquired loan accretion from the Standard Bancshares, Inc. ("Standard") transaction early in the first quarter of 2017, contributed to the increase in net interest income.

Acquired loan accretion contributed $8.8 million, $11.3 million, and $4.9 million to net interest income for the second quarter of 2017, the first quarter of 2017, and the second quarter of 2016, respectively.

2

Tax-equivalent net interest margin for the current quarter was 3.88%, consistent with the first quarter of 2017 and increasing by 16 basis points from the second quarter of 2016. Tax-equivalent net interest margin compared to the first quarter of 2017 was impacted by a 10 basis point decrease in acquired loan accretion, which was mostly offset by the positive impact of higher interest rates. The cost of total average interest-bearing liabilities was consistent with the first quarter of 2017. The increase in tax-equivalent net interest margin compared to the second quarter of 2016 was driven primarily by an 8 basis point increase in acquired loan accretion and higher interest rates.

For the second quarter of 2017, total average interest-earning assets rose by $154.9 million from the first quarter of 2017 and $2.4 billion from the second quarter of 2016. The increase compared to the first quarter of 2017 resulted from loan growth while the increase from the second quarter of 2016 reflected the impact of the Standard transaction, loan growth, and security purchases.

Total average funding sources increased by $212.7 million from the first quarter of 2017 and $2.2 billion from the second quarter of 2016. The increase compared to the first quarter of 2017 resulted from growth in core deposits which was partially offset by a decrease in FHLB advances. Compared to the second quarter of 2016, the rise in average funding sources was impacted by deposits acquired in the Standard transaction and the addition of FHLB advances.

Fee-based Revenues and Total Noninterest Income Analysis

(Dollar amounts in thousands)

	Quarters Ended						June 30, 2017 Percent Change From
	June 30, 2017		March 31, 2017		June 30, 2016		March 31, 2017		June 30, 2016
Service charges on deposit accounts	$	12,153	$	11,365	$	10,169	6.9		19.5
Wealth management fees	10,525		9,660		8,642		9.0		21.8
Card-based fees	8,832		8,116		7,592		8.8		16.3
Merchant servicing fees	3,197		3,135		3,170		2.0		0.9
Mortgage banking income	1,645		1,888		1,863		(12.9	)	(11.7	)
Capital market products income	2,217		1,376		2,066		61.1		7.3
Other service charges, commissions, and fees	2,659		2,307		2,432		15.3		9.3
Total fee-based revenues	41,228		37,847		35,934		8.9		14.7
Net securities gains	284		—		23		—		N/M
Other income	3,433		2,104		1,865		63.2		84.1
Total noninterest income	$	44,945	$	39,951	$	37,822	12.5		18.8

N/M - Not meaningful.

Total fee-based revenues of $41.2 million grew by $3.4 million, or 8.9%, compared to the first quarter of 2017 and by $5.3 million, or 14.7%, compared to the second quarter of 2016. The increase in fee-based revenues compared to the second quarter of 2016 resulted primarily from services provided to customers acquired in the Standard and Premier Asset Management LLC ("Premier") transactions completed in the first quarter of 2017.

Compared to the first quarter of 2017, the increase in service charges on deposit accounts was impacted by growth and seasonality in treasury management services and other consumer deposit transactions. The increase in wealth management fees benefited from the full quarter impact of the Premier acquisition completed late in the first quarter of 2017. The rise in card-based fees from the first quarter of 2017 reflects seasonally higher transaction volumes.

Mortgage banking income resulted primarily from sales of $59.5 million of 1-4 family mortgage loans in the secondary market during the second quarter of 2017, compared to $54.6 million in the first quarter of 2017 and $52.1 million in the second quarter of 2016. In addition, mortgage banking income for the second quarter of 2017 was impacted by a decrease in the fair value of mortgage servicing rights, which fluctuate from quarter to quarter. Growth in capital market products income for the second quarter of 2017 compared to both prior periods was driven by increased sales to commercial clients.

Total noninterest income of $44.9 million grew 12.5% and 18.8% from the first quarter of 2017 and the second quarter of 2016, respectively. Other income increased in the second quarter of 2017 due to net gains from the disposition of branch properties and other miscellaneous items.

3

Noninterest Expense Analysis

(Dollar amounts in thousands)

	Quarters Ended						June 30, 2017 Percent Change From
	June 30, 2017		March 31, 2017		June 30, 2016		March 31, 2017		June 30, 2016
Salaries and employee benefits:
Salaries and wages	$	44,194	$	44,890	$	37,916	(1.6	)	16.6
Retirement and other employee benefits	10,381		10,882		8,351		(4.6	)	24.3
Total salaries and employee benefits	54,575		55,772		46,267		(2.1	)	18.0
Net occupancy and equipment expense	12,485		12,325		9,928		1.3		25.8
Professional services	9,112		8,463		5,292		7.7		72.2
Technology and related costs	4,485		4,433		3,669		1.2		22.2
Merchant card expense	2,632		2,585		2,724		1.8		(3.4	)
Advertising and promotions	1,693		1,066		1,927		58.8		(12.1	)
Cardholder expenses	1,682		1,764		1,512		(4.6	)	11.2
Net other real estate owned ("OREO") expense	1,631		1,700		1,122		(4.1	)	45.4
Other expenses	10,282		9,969		8,295		3.1		24.0
Total noninterest expense excluding   certain significant transactions (1)	98,577		98,077		80,736		0.5		22.1
Acquisition and integration related expenses	1,174		18,565		618		(93.7	)	90.0
Total noninterest expense	$	99,751	$	116,642	$	81,354	(14.5	)	22.6

⁽¹⁾ Total noninterest expense, excluding certain significant transactions, is a non-GAAP financial measure. See the Non-GAAP Financial Information discussion for detail.

Total noninterest expense decreased by 14.5% compared to the first quarter of 2017 and increased by 22.6% compared to the second quarter of 2016. Excluding certain significant transactions, total noninterest expense was consistent with the first quarter of 2017 and increased by 22.1% compared to the second quarter of 2016.

The decrease in salaries and employee benefits compared to the first quarter of 2017 was driven primarily by higher levels of deferred salaries due to loan growth and a reduction in other salaries and benefits that fluctuate with organizational needs. Professional services increased compared to the first quarter of 2017 as a result of certain costs associated with organizational growth. The increase in advertising and promotions expense compared to the first quarter of 2017 resulted from the timing of certain advertising costs.

Compared to the second quarter of 2016, the increase in total noninterest expense, excluding certain significant transactions, largely resulted from operating costs associated with the Standard and Premier transactions, which impacted most expense categories. In addition, compensation costs associated with merit increases and investments in additional talent to support growth contributed to the rise in salaries and employee benefits. Professional services was impacted by higher loan remediation expenses and certain costs associated with organizational growth. The increase in net OREO expense compared to the second quarter of 2016 resulted primarily from higher valuation adjustments.

Acquisition and integration related expenses for the first and second quarters of 2017 resulted from the acquisitions of Standard and Premier completed during the first quarter of 2017. For the second quarter of 2016, acquisition and integration related expenses resulted from the acquisition of NI Bancshares Corporation completed during the first quarter of 2016. These expenses fluctuate based on the size and timing of each transaction.

4

LOAN PORTFOLIO AND ASSET QUALITY

Loan Portfolio Composition

(Dollar amounts in thousands)

	As of						June 30, 2017 Percent Change From
	June 30,   2017		March 31,   2017		June 30,   2016		March 31,   2017		June 30,   2016
Commercial and industrial	$	3,410,748	$	3,370,780	$	2,699,742	1.2		26.3
Agricultural	433,424		422,784		401,858		2.5		7.9
Commercial real estate:
Office, retail, and industrial	1,983,802		1,988,979		1,529,811		(0.3	)	29.7
Multi-family	681,032		671,710		587,123		1.4		16.0
Construction	543,892		568,460		371,016		(4.3	)	46.6
Other commercial real estate	1,383,937		1,357,781		1,000,829		1.9		38.3
Total commercial real estate	4,592,663		4,586,930		3,488,779		0.1		31.6
Total corporate loans	8,436,835		8,380,494		6,590,379		0.7		28.0
Home equity	865,656		880,667		738,263		(1.7	)	17.3
1-4 family mortgages	614,818		540,148		427,050		13.8		44.0
Installment	314,850		253,061		223,845		24.4		40.7
Total consumer loans	1,795,324		1,673,876		1,389,158		7.3		29.2
Total loans	$	10,232,159	$	10,054,370	$	7,979,537	1.8		28.2

Total loans of $10.2 billion increased by 7.1% annualized, from March 31, 2017, and 28.2% from June 30, 2016. Excluding loans acquired in the Standard transaction of $1.6 billion as of June 30, 2017, total loans grew by 8.1% from June 30, 2016. The addition of 1-4 family mortgages and installment loans contributed to the increase in total loans compared to both prior periods. Growth in consumer loans was also impacted by the addition of shorter-duration, floating rate home equity loans compared to June 30, 2016.

Compared to both prior periods, growth in commercial and industrial loans, primarily within our sector-based lending business units, and multi-family loans contributed to the rise in total loans. Construction loans increased compared to June 30, 2016, driven primarily by select commercial projects for which permanent financing is expected upon their completion.

5

Asset Quality

(Dollar amounts in thousands)

	As of									June 30, 2017 Percent Change From
	June 30, 2017			March 31, 2017			June 30, 2016			March 31, 2017		June 30, 2016
Asset quality
Non-accrual loans	$	79,196		$	54,294		$	37,312		45.9		112.3
90 days or more past due loans, still accruing   interest (1)	2,059			2,633			5,406			(21.8	)	(61.9	)
Total non-performing loans	81,255			56,927			42,718			42.7		90.2
Accruing troubled debt restructurings   ("TDRs")	2,029			2,112			2,491			(3.9	)	(18.5	)
OREO	26,493			29,140			29,990			(9.1	)	(11.7	)
Total non-performing assets	$	109,777		$	88,179		$	75,199		24.5		46.0
30-89 days past due loans (1)	$	19,081		$	23,641		$	23,380
Non-accrual loans to total loans	0.77		%	0.54		%	0.47		%
Non-performing loans to total loans	0.79		%	0.57		%	0.54		%
Non-performing assets to total loans plus   OREO (2)	1.07		%	0.87		%	0.94		%
Allowance for credit losses
Allowance for loan losses	$	92,371		$	88,163		$	80,105
Reserve for unfunded commitments	1,000			1,000			1,400
Total allowance for credit losses	$	93,371		$	89,163		$	81,505
Allowance for credit losses to total loans (2)	0.91		%	0.89		%	1.02		%
Allowance for credit losses to loans, excluding   acquired loans	1.10		%	1.11		%	1.11		%
Allowance for credit losses to non-accrual   loans	117.90		%	164.22		%	218.44		%

⁽¹⁾ Purchased credit impaired loans with an accretable yield are considered current and are not included in past due loan totals.

⁽²⁾ This ratio includes acquired loans that are recorded at fair value through an acquisition adjustment, which incorporates credit risk as of the acquisition date with no allowance for credit losses being established at that time. As the acquisition adjustment is accreted into income over future periods, an allowance for credit losses on acquired loans is established as necessary to reflect credit deterioration.

Total non-performing assets represented 1.07% of total loans and OREO at June 30, 2017, up from 0.87% at March 31, 2017 and 0.94% at June 30, 2016. Total OREO includes $6.9 million and $8.4 million as of June 30, 2017 and March 31, 2017, respectively, that was acquired in the Standard transaction during the first quarter of 2017.

Non-accrual loans increased by $24.9 million from March 31, 2017, due primarily to the transfer of two loan relationships from corporate performing potential problem loans to non-accrual status during the second quarter of 2017, driven by operating pressures unique to these borrowers. The Company has established specific reserves and implemented remediation plans associated with these borrowers.

6

Charge-Off Data

(Dollar amounts in thousands)

	Quarters Ended
	June 30, 2017			% of Total		March 31, 2017			% of Total		June 30, 2016			% of Total
Net loan charge-offs (1):
Commercial and industrial	$	1,721		42.7		$	1,894		66.8		$	1,450		28.3
Agricultural	836			20.7		514			18.1		—			—
Office, retail, and industrial	(8		)	(0.2	)	(848		)	(29.9	)	1,633			31.8
Multi-family	(6		)	(0.2	)	(28		)	(1.0	)	83			1.6
Construction	27			0.7		(222		)	(7.8	)	(12		)	(0.2	)
Other commercial real estate	228			5.7		307			10.8		810			15.8
Consumer	1,233			30.6		1,221			43.0		1,166			22.7
Total net loan charge-offs	$	4,031		100.0		$	2,838		100.0		$	5,130		100.0
Total recoveries included above	$	828				$	3,440				$	1,003
Net loan charge-offs to average   loans, annualized:
Quarter-to-date	0.16		%			0.12		%			0.26		%
Year-to-date	0.14		%			0.12		%			0.24		%

⁽¹⁾ Amounts represent charge-offs, net of recoveries.

Net loan charge-offs to average loans, annualized were 0.16%, up from 0.12% for the first quarter of 2017 and down from 0.26% for the second quarter of 2016.

DEPOSIT PORTFOLIO

Deposit Composition

(Dollar amounts in thousands)

	Average for the Quarters Ended						June 30, 2017 Percent Change From
	June 30, 2017		March 31, 2017		June 30, 2016		March 31, 2017	June 30, 2016
Demand deposits	$	3,538,049	$	3,355,674	$	2,771,813	5.4	27.6
Savings deposits	2,072,343		2,029,631		1,655,566		2.1	25.2
NOW accounts	2,010,152		1,916,816		1,615,677		4.9	24.4
Money market accounts	1,942,672		1,890,703		1,670,536		2.7	16.3
Core deposits	9,563,216		9,192,824		7,713,592		4.0	24.0
Time deposits	1,538,845		1,515,597		1,277,694		1.5	20.4
Total deposits	$	11,102,061	$	10,708,421	$	8,991,286	3.7	23.5

Average core deposits of $9.6 billion for the second quarter of 2017 increased by 4.0% and 24.0% compared to the first quarter of 2017 and second quarter of 2016, respectively. The rise in average core deposits compared to the first quarter of 2017 resulted primarily from the seasonal increase in average municipal deposits of nearly $220.0 million and organic growth. Compared to the second quarter of 2016, the rise in average core deposits was primarily driven by deposits assumed in the Standard transaction which contributed $1.6 billion to average core deposits in the second quarter of 2017.

7

CAPITAL MANAGEMENT

Capital Ratios

	As of
	June 30, 2017		March 31, 2017		December 31, 2016		June 30, 2016
Company regulatory capital ratios:
Total capital to risk-weighted assets	11.69	%	11.48	%	12.23	%	10.68	%
Tier 1 capital to risk-weighted assets	9.71	%	9.53	%	9.90	%	9.83	%
Common equity Tier 1 ("CET1") to risk-weighted assets	9.30	%	9.11	%	9.39	%	9.32	%
Tier 1 capital to average assets	8.93	%	8.89	%	8.99	%	8.94	%
Company tangible common equity ratios (1)(2):
Tangible common equity to tangible assets	8.20	%	8.07	%	8.05	%	8.29	%
Tangible common equity, excluding accumulated other comprehensive   income ("AOCI"), to tangible assets	8.48	%	8.38	%	8.42	%	8.37	%
Tangible common equity to risk-weighted assets	8.90	%	8.68	%	8.88	%	9.14	%

⁽¹⁾ These ratios are not subject to formal Federal Reserve regulatory guidance.

⁽²⁾ Tangible common equity ("TCE") represents common stockholders' equity less goodwill and identifiable intangible assets. For details of the calculation of these ratios, see the sections titled, "Non-GAAP Financial Information" and "Non-GAPP Reconciliations" presented later in this release.

The Company's regulatory capital ratios improved compared to March 31, 2017 as a result of an increase in retained earnings, offset partly by the impact of loan growth on risk-weighted assets. Overall, the Company's regulatory capital ratios decreased compared to December 31, 2016 and June 30, 2016 due to the Standard and Premier acquisitions. The issuance of $150.0 million of subordinated notes during the second half of 2016 more than offset the impact of these acquisitions and drove the increase in total capital to risk-weighted assets compared to June 30, 2016.

The Board of Directors approved a quarterly cash dividend of $0.10 per common share during the second quarter of 2017, an increase from $0.09 per common share during the first quarter of 2017.

Conference Call

A conference call to discuss the Company's results, outlook, and related matters will be held on Wednesday, July 26, 2017 at 11:00 A.M. (ET). Members of the public who would like to listen to the conference call should dial (877) 507-0639 (U.S. domestic) or (412) 317-6003 (International) and ask for the First Midwest Bancorp, Inc. Earnings Conference Call. The number should be dialed 10 to 15 minutes prior to the start of the conference call. There is no charge to access the call. The conference call will also be accessible as an audio webcast through the Investor Relations section of the Company's website, www.firstmidwest.com/investorrelations. For those unable to listen to the live broadcast, a replay will be available on the Company's website or by dialing (877) 344-7529 (U.S. domestic) or (412) 317-0088 (International) conference ID 10110139 beginning one hour after completion of the live call until 9:00 A.M. (ET) on August 9, 2017. Please direct any questions regarding obtaining access to the conference call to First Midwest Bancorp, Inc. Investor Relations, via e-mail, at investor.relations@firstmidwest.com.

Press Release and Additional Information Available on Website

This press release and the accompanying unaudited Selected Financial Information are available through the "Investor Relations" section of First Midwest's website at www.firstmidwest.com/investorrelations.

8

Forward-Looking Statements

This press release may contain certain "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. In some cases, forward-looking statements can be identified by the use of words such as "may," "might," "will," "would," "should," "could," "expect," "plan," "intend," "anticipate," "believe," "estimate," "predict," "probable," "potential," "possible," "target," "continue," "look forward," or "assume" and words of similar import. Forward-looking statements are not historical facts but instead express only management's beliefs regarding future results or events, many of which, by their nature, are inherently uncertain and outside of management's control. It is possible that actual results and events may differ, possibly materially, from the anticipated results or events indicated in these forward-looking statements. Forward-looking statements are not guarantees of future performance, and First Midwest cautions you not to place undue reliance on these statements. Forward-looking statements are made only as of the date of this press release, and First Midwest undertakes no obligation to update any forward-looking statements contained in this press release to reflect new information or events or conditions after the date hereof.

Forward-looking statements may be deemed to include, among other things, statements relating to our future financial performance, the performance of our loan or securities portfolio, the expected amount of future credit reserves or charge-offs, corporate strategies or objectives, anticipated trends in our business, regulatory developments, acquisition transactions, including estimated synergies, cost savings and financial benefits of pending or consummated transactions, and growth strategies, including possible future acquisitions. These statements are subject to certain risks, uncertainties and assumptions. For a discussion of these risks, uncertainties and assumptions, you should refer to the sections titled "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Annual Report on Form 10-K for the year ended December 31, 2016, as well as our subsequent filings made with the Securities and Exchange Commission. However, these risks and uncertainties are not exhaustive. Other sections of such reports describe additional factors that could adversely impact our business and financial performance.

Non-GAAP Financial Information

The Company's accounting and reporting policies conform to U.S. generally accepted accounting principles ("GAAP") and general practices within the banking industry. As a supplement to GAAP, the Company provides non-GAAP performance results, which the Company believes are useful because they assist investors in assessing the Company's operating performance. These non-GAAP financial measures include earnings per share ("EPS"), excluding certain significant transactions, the efficiency ratio, total noninterest expense, excluding certain significant transactions, return on average assets, excluding certain significant transactions, tax-equivalent net interest income (including its individual components), tax-equivalent net interest margin, tax-equivalent net interest margin, excluding the impact of acquired loan accretion, tangible common equity to tangible assets, tangible common equity, excluding accumulated other comprehensive loss, to tangible assets, tangible common equity to risk-weighted assets, return on average tangible common equity, and return on average tangible common equity, excluding certain significant transactions.

The Company presents EPS, the efficiency ratio, total noninterest expense, return on average assets, and return on average tangible common equity, all excluding certain significant transactions. Certain significant transactions include acquisition and integration related expenses (all periods presented), a net gain related to a sale-leaseback transaction (third quarter of 2016), and the lease cancellation fee (fourth quarter of 2016). Management believes excluding these transactions from EPS, the efficiency ratio, total noninterest expense, return on average assets, and return on average tangible common equity are useful in assessing the Company's underlying operational performance since these transactions do not pertain to its core business operations and their exclusion facilitates better comparability between periods. Management believes that excluding acquisition and integration related expenses from these metrics is useful to the Company, as well as analysts and investors, since these expenses can vary significantly based on the size, type, and structure of each acquisition. Additionally, management believes excluding these transactions from these metrics enhances comparability for peer comparison purposes.

The tax-equivalent adjustment to net interest income and net interest margin recognizes the income tax savings when comparing taxable and tax-exempt assets and assumes a 35% tax rate. Management believes that it is standard practice in the banking industry to present net interest income and net interest margin on a fully tax-equivalent basis and that it enhances comparability for peer comparison purposes. In addition, management believes that the tax-equivalent net interest margin, excluding the impact of acquired loan accretion, enhances comparability for peer comparison purposes and is useful to the Company, as well as analysts and investors, since acquired loan accretion income may fluctuate significantly based on the size of each acquisition.

In management's view, tangible common equity measures are capital adequacy metrics meaningful to the Company, as well as analysts and investors, in assessing the Company's use of equity and in facilitating comparisons with peers. These non-GAAP measures are valuable indicators of a financial institution's capital strength since they eliminate intangible assets from stockholders' equity and retain the effect of accumulated other comprehensive loss in stockholders' equity.

9

Although intended to enhance investors' understanding of the Company's business and performance, these non-GAAP financial measures should not be considered an alternative to GAAP. See the previously provided tables and the following reconciliations in the "Non-GAAP Reconciliations" section for details on the calculation of these measures to the extent presented herein.

About the Company

First Midwest is a relationship-focused financial institution and one of the largest independent publicly-traded bank holding companies based on assets headquartered in the Midwest, with approximately $14 billion in assets and $10 billion in trust assets under management. First Midwest's principal subsidiary, First Midwest Bank, and other affiliates provide a full range of commercial, equipment leasing, retail, wealth management, trust and private banking products and services through over 130 locations in metropolitan Chicago, northwest Indiana, central and western Illinois, and eastern Iowa. First Midwest's common stock is traded on the NASDAQ Stock Market under the symbol FMBI. First Midwest's website is www.firstmidwest.com.

Contact Information

Investors: Patrick S. Barrett
EVP, Chief Financial Officer
(630) 875-7273
pat.barrett@firstmidwest.com Media: James M. Roolf
SVP, Corporate Relations Officer
(630) 875-7533
jim.roolf@firstmidwest.com

10

Accompanying Unaudited Selected Financial Information

Consolidated Statements of Financial Condition (Unaudited) (Dollar amounts in thousands)
	As of
	June 30,			March 31,			December 31,			September 30,			June 30,
	2017			2017			2016			2016			2016
Period-End Balance Sheet
Assets
Cash and due from banks	$	181,171		$	174,268		$	155,055		$	139,538		$	149,957
Interest-bearing deposits in other banks	103,181			74,892			107,093			362,153			105,432
Trading securities, at fair value	19,545			19,130			17,920			18,351			17,693
Securities available-for-sale, at fair value	1,908,248			1,937,124			1,919,450			1,964,030			1,773,759
Securities held-to-maturity, at amortized cost	17,353			17,742			22,291			20,337			20,672
FHLB and FRB stock	66,333			46,306			59,131			53,506			44,506
Loans:
Commercial and industrial	3,410,748			3,370,780			2,827,658			2,849,399			2,699,742
Agricultural	433,424			422,784			389,496			409,571			401,858
Commercial real estate:
Office, retail, and industrial	1,983,802			1,988,979			1,581,967			1,537,181			1,529,811
Multi-family	681,032			671,710			614,052			625,324			587,123
Construction	543,892			568,460			451,540			401,857			371,016
Other commercial real estate	1,383,937			1,357,781			979,528			971,030			1,000,829
Home equity	865,656			880,667			747,983			748,571			738,263
1-4 family mortgages	614,818			540,148			423,922			396,819			427,050
Installment	314,850			253,061			237,999			232,030			223,845
Total loans	10,232,159			10,054,370			8,254,145			8,171,782			7,979,537
Allowance for loan losses	(92,371		)	(88,163		)	(86,083		)	(85,308		)	(80,105		)
Net loans	10,139,788			9,966,207			8,168,062			8,086,474			7,899,432
OREO	26,493			29,140			26,083			28,049			29,990
Premises, furniture, and equipment, net	135,745			140,653			82,577			82,443			140,554
Investment in bank-owned life insurance ("BOLI")	278,353			276,960			219,746			219,064			218,133
Goodwill and other intangible assets	752,413			754,621			366,876			367,961			369,962
Accrued interest receivable and other assets	340,517			336,428			278,271			236,291			225,720
Total assets	$	13,969,140		$	13,773,471		$	11,422,555		$	11,578,197		$	10,995,810
Liabilities and Stockholders' Equity
Noninterest-bearing deposits	$	3,525,905		$	3,492,987		$	2,766,748		$	2,766,265		$	2,683,495
Interest-bearing deposits	7,473,815			7,463,554			6,061,855			6,339,839			6,287,821
Total deposits	10,999,720			10,956,541			8,828,603			9,106,104			8,971,316
Borrowed funds	639,333			547,923			879,008			639,539			449,744
Senior and subordinated debt	194,886			194,745			194,603			309,444			162,876
Accrued interest payable and other liabilities	298,358			269,529			263,261			253,846			160,985
Stockholders' equity	1,836,843			1,804,733			1,257,080			1,269,264			1,250,889
Total liabilities and stockholders' equity	$	13,969,140		$	13,773,471		$	11,422,555		$	11,578,197		$	10,995,810
Stockholders' equity, excluding accumulated other comprehensive income ("AOCI")	$	1,873,410		$	1,844,997		$	1,297,990		$	1,282,666		$	1,259,692
Stockholders' equity, common	1,836,843			1,804,733			1,257,080			1,269,264			1,250,889

11

Condensed Consolidated Statements of Income (Unaudited) (Dollar amounts in thousands)
	Quarters Ended										Six Months Ended
	June 30,		March 31,		December 31,		September 30,		June 30,		June 30,		June 30,
	2017		2017		2016		2016		2016		2017		2016
Income Statement
Interest income	$	126,516	$	123,699	$	96,328	$	97,906	$	96,550	$	250,215	$	184,098
Interest expense	8,933		8,502		8,304		6,934		6,569		17,435		13,403
Net interest income	117,583		115,197		88,024		90,972		89,981		232,780		170,695
Provision for loan losses	8,239		4,918		5,307		9,998		8,085		13,157		15,678
Net interest income after provision for loan losses	109,344		110,279		82,717		80,974		81,896		219,623		155,017
Noninterest Income
Service charges on deposit accounts	12,153		11,365		10,315		10,708		10,169		23,518		19,642
Wealth management fees	10,525		9,660		8,375		8,495		8,642		20,185		16,201
Card-based fees	8,832		8,116		7,462		7,332		7,592		16,948		14,310
Merchant servicing fees	3,197		3,135		3,016		3,319		3,170		6,332		6,198
Mortgage banking income	1,645		1,888		3,537		3,394		1,863		3,533		3,231
Capital market products income	2,217		1,376		1,827		2,916		2,066		3,593		5,281
Other service charges, commissions, and fees	2,659		2,307		2,575		2,302		2,432		4,966		4,665
Total fee-based revenues	41,228		37,847		37,107		38,466		35,934		79,075		69,528
Net securities gains	284		—		323		187		23		284		910
Net gain on sale-leaseback   transaction	—		—		—		5,509		—		—		—
Other income	3,433		2,104		2,281		1,691		1,865		5,537		3,310
Total noninterest income	44,945		39,951		39,711		45,853		37,822		84,896		73,748
Noninterest Expense
Salaries and employee benefits:
Salaries and wages	44,194		44,890		39,257		37,872		37,916		89,084		74,212
Retirement and other employee benefits	10,381		10,882		8,160		8,500		8,351		21,263		16,649
Total salaries and employee benefits	54,575		55,772		47,417		46,372		46,267		110,347		90,861
Net occupancy and equipment expense	12,485		12,325		10,774		10,755		9,928		24,810		19,625
Professional services	9,112		8,463		7,138		6,772		5,292		17,575		11,212
Technology and related costs	4,485		4,433		3,514		3,881		3,669		8,918		7,370
Merchant card expense	2,632		2,585		2,603		2,857		2,724		5,217		5,322
Advertising and promotions	1,693		1,066		2,330		1,941		1,927		2,759		3,516
Cardholder expenses	1,682		1,764		1,426		1,515		1,512		3,446		2,871
Net OREO expense	1,631		1,700		925		313		1,122		3,331		1,786
Other expenses	10,282		9,969		8,050		7,310		8,295		20,251		15,742
Acquisition and integration related expenses	1,174		18,565		7,542		1,172		618		19,739		5,638
Lease cancellation fee	—		—		950		—		—		—		—
Total noninterest expense	99,751		116,642		92,669		82,888		81,354		216,393		163,943
Income before income tax expense	54,538		33,588		29,759		43,939		38,364		88,126		64,822
Income tax expense	19,588		10,733		9,041		15,537		13,097		30,321		21,593
Net income	$	34,950	$	22,855	$	20,718	$	28,402	$	25,267	$	57,805	$	43,229
Net income applicable to common shares	$	34,614	$	22,621	$	20,501	$	28,078	$	24,977	$	57,235	$	42,727
Net income applicable to common shares, excluding certain significant transactions (1)	$	35,318	$	33,760	$	25,596	$	25,476	$	25,348	$	69,078	$	46,110

Footnotes to Condensed Consolidated Statements of Income

⁽¹⁾  Certain significant transactions that are recorded in various periods presented include acquisition and integration related expenses associated with completed and pending acquisitions, the lease cancellation fee recognized as a result of the Company's planned 2018 corporate headquarters relocation, and a net gain on a sale-leaseback transaction.

12

Selected Financial Information (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Six Months Ended
	June 30,			March 31,			December 31,			September 30,			June 30,			June 30,			June 30,
	2017			2017			2016			2016			2016			2017			2016
Earnings Per Share
Basic earnings per common share ("EPS")	$	0.34		$	0.23		$	0.25		$	0.35		$	0.31		$	0.57		$	0.54
Diluted EPS	$	0.34		$	0.23		$	0.25		$	0.35		$	0.31		$	0.57		$	0.54
Diluted EPS, excluding certain significant transactions (1) (5)	$	0.35		$	0.34		$	0.32		$	0.32		$	0.32		$	0.68		$	0.58
Common Stock and Related Per Common Share Data
Book value	$	17.88		$	17.56		$	15.46		$	15.61		$	15.38		$	17.88		$	15.38
Tangible book value	$	10.55		$	10.22		$	10.95		$	11.08		$	10.83		$	10.55		$	10.83
Dividends declared per share	$	0.10		$	0.09		$	0.09		$	0.09		$	0.09		$	0.19		$	0.18
Closing price at period end	$	23.31		$	23.68		$	25.23		$	19.36		$	17.56		$	23.31		$	17.56
Closing price to book value	1.3			1.3			1.6			1.2			1.1			1.3			1.1
Period end shares outstanding	102,741			102,757			81,325			81,324			81,312			102,741			81,312
Period end treasury shares	9,604			9,586			9,959			9,957			9,965			9,604			9,965
Common dividends	$	9,281		$	9,126		$	7,315		$	7,408		$	7,240		$	18,407		$	14,468
Key Ratios/Data
Return on average common equity (2)	7.58		%	5.20		%	6.42		%	8.85		%	8.13		%	6.42		%	7.12		%
Return on average tangible common equity (2)	13.37		%	9.53		%	9.35		%	12.85		%	11.94		%	11.52		%	10.44		%
Return on average tangible common equity, excluding certain significant transactions (1) (2) (5)	13.64		%	13.99		%	11.60		%	11.69		%	12.11		%	13.81		%	11.24		%
Return on average assets (2)	1.00		%	0.68		%	0.72		%	1.00		%	0.93		%	0.84		%	0.83		%
Return on average assets, excluding certain significant transactions (1) (2) (5)	1.02		%	1.01		%	0.90		%	0.91		%	0.94		%	1.02		%	0.89		%
Loans to deposits	93.02		%	91.77		%	93.49		%	89.74		%	88.94		%	93.02		%	88.94		%
Efficiency ratio (1)	58.67		%	60.98		%	63.98		%	60.83		%	60.98		%	59.80		%	62.81		%
Net interest margin (3)	3.88		%	3.89		%	3.44		%	3.60		%	3.72		%	3.88		%	3.69		%
Yield on average interest-earning assets (3)	4.17		%	4.17		%	3.76		%	3.87		%	3.99		%	4.17		%	3.97		%
Cost of funds	0.43		%	0.42		%	0.47		%	0.39		%	0.39		%	0.42		%	0.41		%
Net noninterest expense to average assets	1.58		%	2.27		%	1.86		%	1.50		%	1.61		%	1.92		%	1.75		%
Effective income tax rate	35.92		%	31.95		%	30.38		%	35.36		%	34.14		%	34.41		%	33.31		%
Capital Ratios
Total capital to risk-weighted assets (1)	11.69		%	11.48		%	12.23		%	12.25		%	10.68		%	11.69		%	10.68		%
Tier 1 capital to risk-weighted assets (1)	9.71		%	9.53		%	9.90		%	9.89		%	9.83		%	9.71		%	9.83		%
CET1 to risk-weighted assets (1)	9.30		%	9.11		%	9.39		%	9.38		%	9.32		%	9.30		%	9.32		%
Tier 1 capital to average assets (1)	8.93		%	8.89		%	8.99		%	8.90		%	8.94		%	8.93		%	8.94		%
Tangible common equity to tangible assets (1)	8.20		%	8.07		%	8.05		%	8.04		%	8.29		%	8.20		%	8.29		%
Tangible common equity, excluding AOCI, to tangible assets (1)	8.48		%	8.38		%	8.42		%	8.16		%	8.37		%	8.48		%	8.37		%
Tangible common equity to risk-weighted assets (1)	8.90		%	8.68		%	8.88		%	9.13		%	9.14		%	8.90		%	9.14		%
Note: Selected Financial Information footnotes are located at the end of this section.

13

Selected Financial Information (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Six Months Ended
	June 30,			March 31,			December 31,			September 30,			June 30,			June 30,			June 30,
	2017			2017			2016			2016			2016			2017			2016
Asset Quality Performance Data
Non-performing assets
Commercial and industrial	$	51,400		$	21,514		$	29,938		$	13,823		$	6,303		$	51,400		$	6,303
Agricultural	387			1,283			181			184			475			387			475
Commercial real estate:
Office, retail, and industrial	15,031			19,505			17,277			17,670			16,815			15,031			16,815
Multi-family	158			163			311			316			321			158			321
Construction	197			198			286			287			360			197			360
Other commercial real estate	3,736			3,858			2,892			3,361			4,797			3,736			4,797
Consumer	8,287			7,773			8,404			8,648			8,241			8,287			8,241
Total non-accrual loans	79,196			54,294			59,289			44,289			37,312			79,196			37,312
90 days or more past due loans, still accruing interest	2,059			2,633			5,009			4,318			5,406			2,059			5,406
Total non-performing loans	81,255			56,927			64,298			48,607			42,718			81,255			42,718
Accruing TDRs	2,029			2,112			2,291			2,368			2,491			2,029			2,491
OREO	26,493			29,140			26,083			28,049			29,990			26,493			29,990
Total non-performing assets	$	109,777		$	88,179		$	92,672		$	79,024		$	75,199		$	109,777		$	75,199
30-89 days past due loans	$	19,081		$	23,641		$	21,043		$	26,140		$	23,380		$	19,081		$	23,380
Allowance for credit losses
Allowance for loan losses	$	92,371		$	88,163		$	86,083		$	85,308		$	80,105		$	92,371		$	80,105
Reserve for unfunded commitments	1,000			1,000			1,000			1,000			1,400			1,000			1,400
Total allowance for credit losses	$	93,371		$	89,163		$	87,083		$	86,308		$	81,505		$	93,371		$	81,505
Provision for loan losses	$	8,239		$	4,918		$	5,307		$	9,998		$	8,085		$	13,157		$	15,678
Net charge-offs by category
Commercial and industrial	$	1,721		$	1,894		$	3,540		$	1,145		$	1,450		$	3,615		$	2,846
Agricultural	836			514			—			—			—			1,350			—
Commercial real estate:
Office, retail, and industrial	(8		)	(848		)	165			2,151			1,633			(856		)	2,054
Multi-family	(6		)	(28		)	17			(69		)	83			(34		)	262
Construction	27			(222		)	(12		)	(9		)	(12		)	(195		)	99
Other commercial real estate	228			307			(111		)	415			810			535			2,104
Consumer	1,233			1,221			933			1,162			1,166			2,454			1,838
Total net charge-offs	$	4,031		$	2,838		$	4,532		$	4,795		$	5,130		$	6,869		$	9,203
Total recoveries included above	$	828		$	3,440		$	1,489		$	1,155		$	1,003		$	4,268		$	2,119
Note: Selected Financial Information footnotes are located at the end of this section.

14

Selected Financial Information (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended
	June 30,		March 31,		December 31,		September 30,		June 30,
	2017		2017		2016		2016		2016
Asset Quality ratios
Non-accrual loans to total loans	0.77	%	0.54	%	0.72	%	0.54	%	0.47	%
Non-performing loans to total loans	0.79	%	0.57	%	0.78	%	0.59	%	0.54	%
Non-performing assets to total loans plus OREO	1.07	%	0.87	%	1.12	%	0.96	%	0.94	%
Non-performing assets to tangible common equity plus allowance for credit losses	9.32	%	7.74	%	9.48	%	8.00	%	7.81	%
Non-accrual loans to total assets	0.57	%	0.39	%	0.52	%	0.38	%	0.34	%
Allowance for credit losses and net charge-off ratios
Allowance for credit losses to total loans (4)	0.91	%	0.89	%	1.06	%	1.06	%	1.02	%
Allowance for credit losses to loans, excluding acquired loans	1.10	%	1.11	%	1.11	%	1.13	%	1.11	%
Allowance for credit losses to non-accrual loans	117.90	%	164.22	%	146.88	%	194.87	%	218.44	%
Allowance for credit losses to non-performing loans	114.91	%	156.63	%	135.44	%	177.56	%	190.80	%
Net charge-offs to average loans (2)	0.16	%	0.12	%	0.22	%	0.24	%	0.26	%

Footnotes to Selected Financial Information

⁽¹⁾  See the Non-GAAP Reconciliations section for the detailed calculation.

⁽²⁾  Annualized based on the actual number of days for each period presented.

⁽³⁾  Presented on a tax-equivalent basis, which reflects federal and state tax benefits.

⁽⁴⁾  This ratio includes acquired loans that are recorded at fair value through an acquisition adjustment, which incorporates credit risk, as of the acquisition date with no allowance for credit losses being established at that time. As the acquisition adjustment is accreted into income over future periods, an allowance for credit losses is established on acquired loans as necessary to reflect credit deterioration.

⁽⁵⁾  Certain significant transactions that are recorded in various periods presented include acquisition and integration related expenses associated with completed and pending acquisitions, the lease cancellation fee recognized as a result of the Company's planned 2018 corporate headquarters relocation, and a net gain on a sale-leaseback transaction.

15

Non-GAAP Reconciliations (Unaudited) (Amounts in thousands, except per share data)
	Quarters Ended															Six Months Ended
	June 30,			March 31,			December 31,			September 30,			June 30,			June 30,			June 30,
	2017			2017			2016			2016			2016			2017			2016
Earnings Per Share
Net income	$	34,950		$	22,855		$	20,718		$	28,402		$	25,267		$	57,805		$	43,229
Net income applicable to non- vested restricted shares	(336		)	(234		)	(217		)	(324		)	(290		)	(570		)	(502		)
Net income applicable to common shares	34,614			22,621			20,501			28,078			24,977			57,235			42,727
Acquisition and integration related expenses	1,174			18,565			7,542			1,172			618			19,739			5,638
Tax effect of acquisition and integration related expenses	(470		)	(7,426		)	(3,017		)	(469		)	(247		)	(7,896		)	(2,255		)
Lease cancellation fee	—			—			950			—			—			—			—
Tax effect of lease cancellation fee	—			—			(380		)	—			—			—			—
Net gain on sale-leaseback transaction	—			—			—			(5,509		)	—			—			—
Tax effect of net gain on sale- leaseback transaction	—			—			—			2,204			—			—			—
Net income applicable to common shares, excluding certain significant transactions (1)	$	35,318		$	33,760		$	25,596		$	25,476		$	25,348		$	69,078		$	46,110
Weighted-average common shares outstanding:
Weighted-average common shares outstanding (basic)	101,743			100,411			80,415			80,396			80,383			101,081			79,182
Dilutive effect of common stock equivalents	20			21			15			13			13			20			12
Weighted-average diluted common shares outstanding	101,763			100,432			80,430			80,409			80,396			101,101			79,194
Basic EPS	$	0.34		$	0.23		$	0.25		$	0.35		$	0.31		$	0.57		$	0.54
Diluted EPS	$	0.34		$	0.23		$	0.25		$	0.35		$	0.31		$	0.57		$	0.54
Diluted EPS, excluding certain significant transactions (1)	$	0.35		$	0.34		$	0.32		$	0.32		$	0.32		$	0.68		$	0.58
Anti-dilutive shares not included in the computation of diluted EPS	195			343			445			454			469			269			539
Efficiency Ratio Calculation
Noninterest expense	$	99,751		$	116,642		$	92,669		$	82,888		$	81,354		$	216,393		$	163,943
Less:
Net OREO expense	(1,631		)	(1,700		)	(925		)	(313		)	(1,122		)	(3,331		)	(1,786		)
Acquisition and integration related expenses	(1,174		)	(18,565		)	(7,542		)	(1,172		)	(618		)	(19,739		)	(5,638		)
Lease cancellation fee	—			—			(950		)	—			—			—			—
Total	$	96,946		$	96,377		$	83,252		$	81,403		$	79,614		$	193,323		$	156,519
Tax-equivalent net interest income (2)	$	119,625		$	117,251		$	90,088		$	93,051		$	92,174		$	236,876		$	175,195
Fee-based revenues	41,228			37,847			37,107			38,466			35,934			79,075			69,528
Add:
Other income, excluding BOLI income	2,022			844			1,310			762			984			2,866			1,563
BOLI	1,411			1,260			971			929			881			2,671			1,747
Tax-equivalent adjustment of BOLI	941			840			647			619			587			1,781			1,165
Total	$	165,227		$	158,042		$	130,123		$	133,827		$	130,560		$	323,269		$	249,198
Efficiency ratio	58.67		%	60.98		%	63.98		%	60.83		%	60.98		%	59.80		%	62.81		%
Note: Non-GAAP Reconciliations footnotes are located at the end of this section.

16

Non-GAAP Reconciliations (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Six Months Ended
	June 30,			March 31,			December 31,			September 30,			June 30,			June 30,			June 30,
	2017			2017			2016			2016			2016			2017			2016
Tax-Equivalent Net Interest Income
Net interest income	$	117,583		$	115,197		$	88,024		$	90,972		$	89,981		$	232,780		$	170,695
Tax-equivalent adjustment	2,042			2,054			2,064			2,079			2,193			4,096			4,500
Tax-equivalent net interest   income (2)	119,625			117,251			90,088			93,051			92,174			236,876			175,195
Less: acquired loan accretion	(8,757		)	(11,345		)	(2,663		)	(4,555		)	(4,927		)	(20,102		)	(7,350		)
Tax-equivalent net interest income, excluding the impact of acquired loan accretion	$	110,868		$	105,906		$	87,425		$	88,496		$	87,247		$	216,774		$	167,845
Average interest-earning assets	$	12,366,739		$	12,211,804		$	10,425,691		$	10,297,647		$	9,949,093		$	12,289,700		$	9,536,003
Net interest margin (GAAP)	3.81		%	3.83		%	3.36		%	3.51		%	3.64		%	3.82		%	3.60		%
Tax-equivalent net interest margin	3.88		%	3.89		%	3.44		%	3.60		%	3.72		%	3.88		%	3.69		%
Tax-equivalent net interest margin, excluding the impact of acquired loan accretion	3.60		%	3.51		%	3.34		%	3.42		%	3.52		%	3.55		%	3.54		%
Risk-Based Capital Data
Common stock	$	1,123		$	1,123		$	913		$	913		$	913		$	1,123		$	913
Additional paid-in capital	1,025,607			1,022,417			498,937			496,918			495,159			1,025,607			495,159
Retained earnings	1,056,072			1,030,403			1,016,674			1,003,271			982,277			1,056,072			982,277
Treasury stock, at cost	(209,392		)	(208,946		)	(218,534		)	(218,436		)	(218,657		)	(209,392		)	(218,657		)
Goodwill and other intangible assets, net of deferred tax liabilities	(740,236		)	(742,012		)	(356,477		)	(357,079		)	(358,582		)	(740,236		)	(358,582		)
Disallowed deferred tax assets	(472		)	(1,150		)	(198		)	(383		)	(2,263		)	(472		)	(2,263		)
CET1 capital	1,132,702			1,101,835			941,315			925,204			898,847			1,132,702			898,847
Trust-preferred securities	50,690			50,690			50,690			50,690			50,690			50,690			50,690
Other disallowed deferred tax assets	(118		)	(287		)	(132		)	(255		)	(1,508		)	(118		)	(1,508		)
Tier 1 capital	1,183,274			1,152,238			991,873			975,639			948,029			1,183,274			948,029
Tier 2 capital	240,121			235,825			233,656			232,792			81,505			240,121			81,505
Total capital	$	1,423,395		$	1,388,063		$	1,225,529		$	1,208,431		$	1,029,534		$	1,423,395		$	1,029,534
Risk-weighted assets	$	12,180,416		$	12,095,592		$	10,019,434		$	9,867,406		$	9,641,953		$	12,180,416		$	9,641,953
Adjusted average assets	$	13,245,499		$	12,965,450		$	11,036,835		$	10,959,119		$	10,608,085		$	13,245,499		$	10,608,085
Total capital to risk-weighted assets	11.69		%	11.48		%	12.23		%	12.25		%	10.68		%	11.69		%	10.68		%
Tier 1 capital to risk-weighted assets	9.71		%	9.53		%	9.90		%	9.89		%	9.83		%	9.71		%	9.83		%
CET1 to risk-weighted assets	9.30		%	9.11		%	9.39		%	9.38		%	9.32		%	9.30		%	9.32		%
Tier 1 capital to average assets	8.93		%	8.89		%	8.99		%	8.90		%	8.94		%	8.93		%	8.94		%
Tangible Common Equity
Stockholders' equity	$	1,836,843		$	1,804,733		$	1,257,080		$	1,269,264		$	1,250,889		$	1,836,843		$	1,250,889
Less: goodwill and other intangible assets	(752,413		)	(754,621		)	(366,876		)	(367,961		)	(369,962		)	(752,413		)	(369,962		)
Tangible common equity	1,084,430			1,050,112			890,204			901,303			880,927			1,084,430			880,927
Less: AOCI	36,567			40,264			40,910			13,402			8,803			36,567			8,803
Tangible common equity, excluding AOCI	$	1,120,997		$	1,090,376		$	931,114		$	914,705		$	889,730		$	1,120,997		$	889,730
Total assets	$	13,969,140		$	13,773,471		$	11,422,555		$	11,578,197		$	10,995,810		$	13,969,140		$	10,995,810
Less: goodwill and other intangible assets	(752,413		)	(754,621		)	(366,876		)	(367,961		)	(369,962		)	(752,413		)	(369,962		)
Tangible assets	$	13,216,727		$	13,018,850		$	11,055,679		$	11,210,236		$	10,625,848		$	13,216,727		$	10,625,848
Tangible common equity to tangible assets	8.20		%	8.07		%	8.05		%	8.04		%	8.29		%	8.20		%	8.29		%
Tangible common equity, excluding AOCI, to tangible assets	8.48		%	8.38		%	8.42		%	8.16		%	8.37		%	8.48		%	8.37		%
Tangible common equity to risk- weighted assets	8.90		%	8.68		%	8.88		%	9.13		%	9.14		%	8.90		%	9.14		%
Note: Non-GAAP Reconciliations footnotes are located at the end of this section.

17

Non-GAAP Reconciliations (Unaudited) (Amounts in thousands, except per share data)
	As of or for the
	Quarters Ended															Six Months Ended
	June 30,			March 31,			December 31,			September 30,			June 30,			June 30,			June 30,
	2017			2017			2016			2016			2016			2017			2016
Return on Average Common and Tangible Common Equity
Net income applicable to common shares	$	34,614		$	22,621		$	20,501		$	28,078		$	24,977		$	57,235		$	42,727
Intangibles amortization	2,163			1,965			1,207			1,245			1,245			4,128			2,230
Tax effect of intangibles amortization	(865		)	(786		)	(483		)	(498		)	(498		)	(1,651		)	(892		)
Net income applicable to common shares, excluding intangibles amortization	35,912			23,800			21,225			28,825			25,724			59,712			44,065
Acquisition and integration related expenses	1,174			18,565			7,542			1,172			618			19,739			5,638
Tax effect of acquisition and integration related expenses	(470		)	(7,426		)	(3,017		)	(469		)	(247		)	(7,896		)	(2,255		)
Lease cancellation fee	—			—			950			—			—			—			—
Tax effect of lease cancellation fee	—			—			(380		)	—			—			—			—
Net gain on sale-leaseback transaction	—			—			—			(5,509		)	—			—			—
Tax effect of net gain on sale- leaseback transaction	—			—			—			2,204			—			—			—
Net income applicable to common shares, excluding intangibles amortization and certain significant transactions (1)	$	36,616		$	34,939		$	26,320		$	26,223		$	26,095		$	71,555		$	47,448
Average stockholders' equity	$	1,830,536		$	1,763,538		$	1,269,993		$	1,261,702		$	1,235,497		1,797,222			$	1,207,043
Less: average intangible assets	(753,521		)	(750,589		)	(367,328		)	(369,281		)	(369,177		)	(752,063		)	(357,863		)
Average tangible common equity	$	1,077,015		$	1,012,949		$	902,665		$	892,421		$	866,320		$	1,045,159		$	849,180
Return on average common equity (3)	7.58		%	5.20		%	6.42		%	8.85		%	8.13		%	6.42		%	7.12		%
Return on average tangible common equity (3)	13.37		%	9.53		%	9.35		%	12.85		%	11.94		%	11.52		%	10.44		%
Return on average tangible common equity, excluding certain significant transactions (1) (3)	13.64		%	13.99		%	11.60		%	11.69		%	12.11		%	13.81		%	11.24		%
Return on Average Assets
Net income	$	34,950		$	22,855		$	20,718		$	28,402		$	25,267		$	57,805		$	43,229
Acquisition and integration related expenses	1,174			18,565			7,542			1,172			618			19,739			5,638
Tax effect of acquisition and integration related expenses	(470		)	(7,426		)	(3,017		)	(469		)	(247		)	(7,896		)	(2,255		)
Lease cancellation fee	—			—			950			—			—			—			—
Tax effect of lease cancellation fee	—			—			(380		)	—			—			—			—
Net gain on sale-leaseback transaction	—			—			—			(5,509		)	—			—			—
Tax effect of net gain on sale- leaseback transaction	—			—			—			2,204			—			—			—
Net income, excluding   certain significant   transactions (1)	$	35,654		$	33,994		$	25,813		$	25,800		$	25,638		$	69,648		$	46,612
Average assets	$	13,960,843		$	13,673,125		$	11,380,108		$	11,322,325		$	10,968,516		$	13,817,779		$	10,512,680
Return on average assets (3)	1.00		%	0.68		%	0.72		%	1.00		%	0.93		%	0.84		%	0.83		%
Return on average assets, excluding certain significant transactions (1) (3)	1.02		%	1.01		%	0.90		%	0.91		%	0.94		%	1.02		%	0.89		%

Footnotes to Non-GAAP Reconciliations

⁽¹⁾  Certain significant transactions that are recorded in various periods presented include acquisition and integration related expenses associated with completed and pending acquisitions, the lease cancellation fee recognized as a result of the Company's planned 2018 corporate headquarters relocation, and a net gain on a sale-leaseback transaction.

⁽²⁾  Presented on a tax-equivalent basis, which reflects federal and state tax benefits.

⁽³⁾  Annualized based on the actual number of days for each period presented.

18