Income per Share

12 Months Ended

Dec. 31, 2019

Income per Share

Income per Share

10. Income per Share

The following is a summary of basic and diluted income per share (in thousands, except share and per share amounts):

	Year Ended December 31,
	2019		2018		2017
Net income available to common stockholders	$	493,011	$	249,930	$	173,148
Weighted average shares outstanding—basic		208,325,823		206,035,408		174,059,386
Potentially dilutive common shares:
Unvested incentive units		165,185		141,260		141,136
Forward equity offering		813,073		33,315		124,527
Market performance-based awards		158,166		463,488		570,049
Weighted average shares outstanding—diluted		209,462,247		206,673,471		174,895,098
Income per share:
Basic	$	2.37	$	1.21	$	0.99
Diluted	$	2.35	$	1.21	$	0.99

We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:

	Year Ended December 31,
	2019	2018	2017
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	9,087,726	8,227,463	3,996,550
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Stock	1,695,765	1,876,584	540,773
Potentially dilutive Series F Cumulative Redeemable Preferred Stock	—	—	463,301
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	2,102,655	2,326,861	2,261,153
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	789,846	3,409,772	3,313,484
Potentially dilutive Series I Cumulative Redeemable Preferred Stock	2,105,116	2,329,584	2,263,799
Potentially dilutive Series J Cumulative Redeemable Preferred Stock	1,679,534	1,858,622	720,803
Potentially dilutive Series K Cumulative Redeemable Preferred Stock	1,334,691	—	—
Potentially dilutive Series L Cumulative Redeemable Preferred Stock	670,823	—	—
Total	19,466,156	20,028,886	13,559,863