Note 3: Earnings per Common Share

Basic earnings per share is calculated by dividing net income available to common stockholders by the weighted average number of common shares outstanding during the period. Net income available to common stockholders is net income to FSB Bancorp, Inc. The Company has not granted any restricted stock awards or stock options during the periods ended September 30, 2017 and 2016, and therefore had no potentially dilutive common stock equivalents. Unallocated common shares held by the ESOP are not included in the weighted-average number of common shares outstanding for purposes of calculating earnings per common share until they are committed to be released.

The following tables set forth the calculation of basic earnings per share. Historical share and per share data have been adjusted by the exchange ratio of 1.0884 used in the conversion and offering.

	Three months ended
	September 30,
(In thousands, except per share data)	2017		2016
Basic Earnings Per Common Share
Net income available to common stockholders	$	202	$	252
Weighted average common shares outstanding		1,892		1,905
Basic earnings per common share	$	0.11	$	0.13

	Nine months ended
	September 30,
(In thousands, except per share data)	2017		2016
Basic Earnings Per Common Share
Net income available to common stockholders	$	453	$	439
Weighted average common shares outstanding		1,903		1,899
Basic earnings per common share	$	0.24	$	0.23