Presented below is a summary of the components used to calculate basic and diluted income per share. The Company applies the two-class method of computing income per share, as nonvested share-based awards that contain nonforfeitable rights to dividends are considered securities which participate in undistributed earnings with common stock. The two-class method requires the calculation of separate income per share amounts for the nonvested share-based awards and for common stock. Income per share attributable to common stock is shown in the table below. Nonvested share-based awards are further discussed in Note 13.



	For the Three Months Ended June 30				For the Six Months Ended June 30
(In thousands, except per share data)	2014		2013		2014		2013
Basic income per common share:
Net income attributable to Commerce Bancshares, Inc.	$	66,531	$	65,805	$	130,844	$	126,822
Less preferred stock dividends	—		—		—		—
Net income available to common shareholders	66,531		65,805		130,844		126,822
Less income allocated to nonvested restricted stock	856		750		1,658		1,344
Net income allocated to common stock	$	65,675	$	65,055	$	129,186	$	125,478
Weighted average common shares outstanding	93,529		94,273		94,148		94,496
Basic income per common share	$	.70	$	.69	$	1.37	$	1.33
Diluted income per common share:
Net income available to common shareholders	$	66,531	$	65,805	$	130,844	$	126,822
Less income allocated to nonvested restricted stock	854		747		1,653		1,340
Net income allocated to common stock	$	65,677	$	65,058	$	129,191	$	125,482
Weighted average common shares outstanding	93,529		94,273		94,148		94,496
Net effect of the assumed exercise of stock-based awards - based on
the treasury stock method using the average market price for the respective periods	384		394		402		320
Weighted average diluted common shares outstanding	93,913		94,667		94,550		94,816
Diluted income per common share	$	.70	$	.69	$	1.37	$	1.32