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 pay nonforfeitable common stock 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)	2025		2024		2025		2024
Basic income per common share:
Net income attributable to Commerce Bancshares, Inc.	$	152,479	$	139,553	$	284,071	$	252,216
Less income allocated to nonvested restricted stock	1,461		1,313		2,720		2,357
Net income allocated to common stock	$	151,018	$	138,240	$	281,351	$	249,859
Weighted average common shares outstanding	132,455		134,881		132,685		135,187
Basic income per common share	$	1.14	$	1.03	$	2.12	$	1.85
Diluted income per common share:
Net income attributable to Commerce Bancshares, Inc.	$	152,479	$	139,553	$	284,071	$	252,216
Less income allocated to nonvested restricted stock	1,460		1,312		2,718		2,355
Net income allocated to common stock	$	151,019	$	138,241	$	281,353	$	249,861
Weighted average common shares outstanding	132,455		134,881		132,685		135,187

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	128		160		141		156
Weighted average diluted common shares outstanding	132,583		135,041		132,826		135,343
Diluted income per common share	$	1.14	$	1.03	$	2.12	$	1.85