First Interstate BancSystem (FIBK) 8-K Other Events

Exhibit 99.3

Exchange-Traded Nationwide Banks With Total Assets $10 Billion—$15 Billion¹
Financials as of June 30, 2018 unless otherwise noted					Market Data (as of 10/10/2018)																	YTD Profitability						Balance Sheet Ratios
Company Name	City, St	Ticker	Total Assets ($mm)		Mkt Cap ($mm)		Stock Price ($)		Price/ Tang. Book Value (%)		Price/ YTD Ann. EPS (x)		Price/ Est. 2018 EPS (x)		Price/ Est. 2019 EPS (x)		Div. Yield (%)		1 Yr Price Change (%)			YTD Eff. Ratio (%)		YTD NIM (%)		YTD ROAA (%)		TCE/ TA (%)		CRE Conc. Ratio (%)		Loan/ Dpts (%)		NP As/ Assets (%)
Home BancShares, Inc.	Conway, AR	HOMB		14,924		3,794		21.72		289		12.6		12.3		11.3		2.2		(15.6	)		37		4.43		2.09		9.4		286		102		0.49
Hope Bancorp, Inc.	Los Angeles, CA	HOPE		14,870		2,099		16.15		149		10.9		11.1		10.5		3.5		(10.3	)		49		3.61		1.37		9.9		348		100		1.02
First Midwest Bancorp, Inc.	Chicago, IL	FMBI		14,818		2,746		26.62		243		21.8		16.3		13.0		1.7		13.0			59		3.82		0.88		8.0		210		95		0.46
South State Corporation	Columbia, SC	SSB		14,566		2,954		80.50		232		17.9		14.2		13.5		1.7		(13.3	)		56		4.20		1.14		9.5		215		93		0.29
First Financial Bancorp.	Cincinnati, OH	FFBC		13,920		2,860		29.21		265		17.4		13.2		12.4		2.7		10.0			53		3.99		1.17		8.4		219		88		0.46
Hilltop Holdings Inc.	Dallas, TX	HTH		13,689		1,891		19.99		116		16.7		13.3		11.6		1.4		(24.0	)		88		3.47		0.89		12.1		148		109		0.34
Trustmark Corporation	Jackson, MS	TRMK		13,525		2,294		33.92		193		15.0		15.1		14.7		2.7		0.2			66		3.49		1.13		9.1		205		82		0.76
Union Bankshares Corporation	Richmond, VA	UBSH		13,066		2,541		38.51		232		19.9		15.1		13.2		2.4		7.9			56		3.73		0.98		8.9		309		95		0.38
Columbia Banking System, Inc.	Tacoma, WA	COLB		12,629		2,792		38.10		243		17.0		15.4		14.1		2.7		(9.6	)		55		4.26		1.30		9.7		191		81		0.73
United Community Banks, Inc.	Blairsville, GA	UCBI		12,386		2,165		27.36		206		14.1		12.8		11.6		2.2		(4.5	)		55		3.82		1.27		8.7		199		83		0.58
Great Western Bancorp, Inc.	Sioux Falls, SD	GWB		12,009		2,467		41.87		231		10.7		14.1		12.5		2.4		2.5			47		3.92		1.31		9.5		238		98		1.42
International Bancshares Corporation	Laredo, TX	IBOC		11,989		2,828		42.76		177		13.3		—		—		2.0		1.7			51		3.77		1.80		13.6		180		74		0.77
Berkshire Hills Bancorp, Inc.	Boston, MA	BHLB		11,902		1,842		40.55		200		15.7		14.6		13.4		2.2		3.7			59		3.44		1.02		8.1		226		100		0.31
Glacier Bancorp, Inc.	Kalispell, MT	GBCI		11,898		3,703		43.81		327		21.9		19.5		17.9		2.4		16.1			55		4.11		1.50		9.8		200		85		0.83
Cadence Bancorporation	Houston, TX	CADE		11,306		2,079		24.86		193		12.0		12.3		10.7		2.4		8.9			49		3.62		1.57		9.8		94		97		0.58
Heartland Financial USA, Inc.	Dubuque, IA	HTLF		11,302		1,981		57.53		244		17.8		15.2		13.3		1.0		13.9			67		4.22		1.00		7.5		188		79		0.61
Ameris Bancorp	Moultrie, GA	ABCB		11,191		2,131		44.86		262		24.4		13.6		10.5		0.9		(12.1	)		57		3.90		0.88		7.7		280		98		0.86
Customers Bancorp, Inc.	Wyomissing, PA	CUBI		11,093		737		23.28		105		9.0		8.7		7.5		0.0		(29.6	)		61		2.63		0.91		6.3		440		125		0.35
WesBanco, Inc.	Wheeling, WV	WSBC		10,947		2,348		43.03		231		14.6		13.9		13.1		2.7		1.3			54		3.39		1.28		8.4		210		89		0.39
TowneBank	Portsmouth, VA	TOWN		10,832		2,184		30.51		226		18.2		15.2		13.9		2.1		(12.5	)		63		3.60		1.22		9.4		250		102		0.47
Community Bank System, Inc.	De Witt, NY	CBU		10,633		3,134		61.33		353		18.6		19.2		19.0		2.5		9.1			57		3.69		1.58		8.6		82		73		0.26
Renasant Corporation	Tupelo, MS	RNST		10,544		2,334		39.73		212		13.9		13.1		11.7		2.0		(7.9	)		60		4.14		1.38		9.3		242		96		0.38
CenterState Bank Corporation	Winter Haven, FL	CSFL		10,537		2,616		27.38		261		16.9		13.5		12.2		1.5		0.1			51		4.41		1.32		8.9		282		86		0.37
Banner Corporation	Walla Walla, WA	BANR		10,379		1,964		60.62		198		16.0		16.2		14.4		2.5		(2.1	)		66		4.34		1.20		9.8		286		91		0.27
Banc of California, Inc.	Santa Ana, CA	BANC		10,319		945		18.65		140		37.3		28.4		15.6		2.8		(9.5	)		75		2.97		0.46		6.6		291		99		0.28

Exchange-Traded Nationwide Banks With Total Assets $10 Billion—$15 Billion¹
Financials as of June 30, 2018 unless otherwise noted					Market Data (as of 10/10/2018)																	YTD Profitability						Balance Sheet Ratios
Company Name	City, St	Ticker	Total Assets ($mm)		Mkt Cap ($mm)		Stock Price ($)		Price/ Tang. Book Value (%)		Price/ YTD Ann. EPS (x)		Price/ Est. 2018 EPS (x)		Price/ Est. 2019 EPS (x)		Div. Yield (%)		1 Yr Price Change (%)			YTD Eff. Ratio (%)		YTD NIM (%)		YTD ROAA (%)		TCE/ TA (%)		CRE Conc. Ratio (%)		Loan/ Dpts (%)		NP As/ Assets (%)
Independent Bank Group, Inc.	McKinney, TX	IBTX		10,017		2,024		66.40		263		16.3		14.4		12.1		0.8		7.4			49		4.01		1.32		8.3		394		102		0.17
		High		14,924		3,794		—		353		37.3		28.4		19.0		3.5		16.1			88		4.43		2.09		13.6		440		125		1.42
		Low		10,017		737		—		105		9.0		8.7		7.5		0.0		(29.6	)		37		2.63		0.46		6.3		82		73		0.17
		Mean		12,127		2,364		—		223		16.9		14.8		13.0		2.0		(2.1	)		57		3.81		1.23		9.1		239		93		0.53
		Median		11,900		2,314		—		231		16.5		14.2		13.0		2.2		0.2			56		3.82		1.24		9.0		223		95		0.46
First Interstate BancSystem, Inc.	Billings, MT	FIBK		12,236		2,781		45.90		278		16.5		15.6		14.0		2.4		18.1			59		3.78		1.29		8.2		185		78		0.75

Note:

1: First BanCorp. (NYSE: FBP) removed due to elevated NPAs / Assets of 8.19%

Financials not adjusted to reflect pending or recently completed acquisitions. Market cap reflects shares issued in transactions which have closed since June 30, 2018

Source: S&P Global Market Intelligence, excludes targets of announced mergers