Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share, Basic and Diluted

The computation of earnings per share is as follows:

	Three Months Ended March 31,
	2018		2017
	(dollars in thousands, except share and per share data)
Net income (loss)	$	28,009	$	12,089
Net income (loss) attributable to redeemable non-controlling interests in consolidated subsidiaries and funds	11,156		9,105
Net income (loss) attributable to Cowen Inc.	16,853		2,984
Preferred stock dividends	1,698		1,698
Net income (loss) attributable to Cowen Inc. common stockholders	$	15,155	$	1,286
Shares for basic and diluted calculations:
Weighted average shares used in basic computation	29,625		27,061
Stock options	—		—
Performance based restricted stock	—		—
Stock appreciation rights	—		12
Restricted stock	867		1,328
Weighted average shares used in diluted computation	30,492		28,401
Earnings (loss) per share:
Basic	$	0.51	$	0.05
Diluted	$	0.50	$	0.05