The following table presents the calculation of basic and diluted earnings per share for our Common and Class B common stock:


	Quarter Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Basic Earnings per Share:
Net income attributable to Watsco, Inc. shareholders	$	86,578	$	90,155	$	117,080	$	125,192
Less: distributed and undistributed earnings allocated to non-vested restricted common stock		7,439		7,512		11,082		10,355

Earnings allocated to Watsco, Inc. shareholders	$	79,139	$	82,643	$	105,998	$	114,837


Weighted-average common shares outstanding—Basic		35,042,958		34,435,099		35,019,003		34,411,738

Basic earnings per share for Common and Class B common stock	$	2.26	$	2.40	$	3.03	$	3.34
Allocation of earnings for Basic:
Common stock	$	73,323	$	76,456	$	98,202	$	106,234
Class B common stock		5,816		6,187		7,796		8,603

	$	79,139	$	82,643	$	105,998	$	114,837

Diluted Earnings per Share:
Net income attributable to Watsco, Inc. shareholders	$	86,578	$	90,155	$	117,080	$	125,192
Less: distributed and undistributed earnings allocated to non-vested restricted common stock		7,439		7,511		11,082		10,354

Earnings allocated to Watsco, Inc. shareholders	$	79,139	$	82,644	$	105,998	$	114,838


Weighted-average common shares outstanding—Basic		35,042,958		34,435,099		35,019,003		34,411,738
Effect of dilutive stock options		21,753		27,861		25,347		21,210

Weighted-average common shares outstanding—Diluted		35,064,711		34,462,960		35,044,350		34,432,948


Diluted earnings per share for Common and Class B common stock	$	2.26	$	2.40	$	3.02	$	3.34

Anti-dilutive stock options not included above		208,641		174,457		182,122		213,270

Diluted earnings per share for our Common stock assumes the conversion of all of our Class B common stock into Common stock as of the beginning of the fiscal year; therefore, no allocation of earnings to Class B common stock is required. At June 30, 2020 and 2019, our outstanding Class B common stock was convertible into 2,575,482 and 2,577,858 shares of our Common stock, respectively.