Our segment information for the three and nine months ended September 30, 2018 and 2017 is as follows:



(Dollars in thousands)	Global Commercial Bank (1)			SVB Private Bank			SVB Capital (1)			Other Items (2)			Total
Three months ended September 30, 2018
Net interest income	$	431,036		$	14,919		$	6		$	47,261		$	493,222
(Provision for) reduction of credit losses	(19,074		)	(362		)	—			2,262			(17,174		)
Noninterest income	114,123			605			24,423			70,919			210,070
Noninterest expense (3)	(206,487		)	(6,760		)	(6,469		)	(89,729		)	(309,445		)
Income before income tax expense (4)	$	319,598		$	8,402		$	17,960		$	30,713		$	376,673
Total average loans, net of unearned income	$	22,925,909		$	2,928,576		$	—		$	476,892		$	26,331,377
Total average assets (5)	54,296,808			2,538,662			388,531			(758,964		)	56,465,037
Total average deposits	47,037,693			1,505,746			—			548,801			49,092,240
Three months ended September 30, 2017
Net interest income	$	337,860		$	14,600		$	15		$	21,499		$	373,974
Provision for credit losses	(20,874		)	(1,535		)	—			(1,113		)	(23,522		)
Noninterest income	97,227			460			13,913			47,178			158,778
Noninterest expense (3)	(178,306		)	(4,706		)	(4,873		)	(69,876		)	(257,761		)
Income (loss) before income tax expense (4)	$	235,907		$	8,819		$	9,055		$	(2,312	)	$	251,469
Total average loans, net of unearned income	$	18,807,616		$	2,499,507		$	—		$	277,769		$	21,584,892
Total average assets (5)	47,809,890			2,538,400			323,417			(876,341		)	49,795,366
Total average deposits	42,376,024			1,231,390			—			435,428			44,042,842
Nine months ended September 30, 2018
Net interest income	$	1,209,960		$	46,811		$	22		$	122,735		$	1,379,528
Provision for credit losses	(71,704		)	(2,384		)	—			(138		)	(74,226		)
Noninterest income	326,714			1,677			81,832			148,054			558,277
Noninterest expense (3)	(591,434		)	(18,729		)	(17,182		)	(253,256		)	(880,601		)
Income before income tax expense (4)	$	873,536		$	27,375		$	64,672		$	17,395		$	982,978
Total average loans, net of unearned income	$	21,781,557		$	2,791,910		$	—		$	434,810		$	25,008,277
Total average assets (5)	52,277,701			2,548,184			379,809			(773,042		)	54,432,652
Total average deposits	45,701,317			1,519,200			—			513,845			47,734,362
Nine months ended September 30, 2017
Net interest income	$	924,789		$	42,952		$	41		$	58,881		$	1,026,663
Provision for credit losses	(65,007		)	(2,266		)	—			(2,789		)	(70,062		)
Noninterest income	260,650			1,715			45,707			96,893			404,965
Noninterest expense (3)	(528,807		)	(12,675		)	(14,537		)	(190,621		)	(746,640		)
Income (loss) before income tax expense (4)	$	591,625		$	29,726		$	31,211		$	(37,636	)	$	614,926
Total average loans, net of unearned income	$	18,125,020		$	2,371,027		$	—		$	230,420		$	20,726,467
Total average assets (5)	45,408,476			2,403,777			333,439			(580,641		)	47,565,051
Total average deposits	40,398,413			1,289,990			—			373,232			42,061,635


(1)	Global Commercial Bank’s and SVB Capital’s components of net interest income, noninterest income, noninterest expense and total average assets are shown net of noncontrolling interests for all periods presented. Noncontrolling interest is included within “Other Items."

(2)

The “Other Items” column reflects the adjustments necessary to reconcile the results of the operating segments to the consolidated financial statements prepared in conformity with GAAP. Net interest income consists primarily of interest earned from our fixed income investment portfolio, net of FTP. Noninterest income consists primarily of gains on equity warrant assets and gains or losses on the sale of fixed income investments and equity securities from exercised warrant assets. Noninterest expense consists primarily of expenses associated with corporate support functions such as finance, human resources, marketing, legal and other expenses.


(3)	The Global Commercial Bank segment includes direct depreciation and amortization of $5.5 million and $6.1 million for the three months ended September 30, 2018 and 2017, respectively, and $16.6 million and $19.4 million for the nine months ended September 30, 2018 and 2017, respectively.


(4)	The internal reporting model used by management to assess segment performance does not calculate income tax expense by segment. Our effective tax rate is a reasonable approximation of the segment rates.


(5)	Total average assets equal the greater of total average assets or the sum of total average liabilities and total average stockholders’ equity for each segment to reconcile the results to the consolidated financial statements prepared in conformity with GAAP.