Income per Unit

12 Months Ended

Dec. 31, 2018

Digital Realty Trust, L.P.

Class of Stock [Line Items]

Income per Unit

Income per Unit

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

	Year Ended December 31,
	2018		2017		2016
Net income available to common unitholders	$	260,110	$	176,918	$	337,386
Weighted average units outstanding—basic	214,312,871		178,055,936		152,359,680
Potentially dilutive common units:
Stock options	—		—		9,726
Unvested incentive units	141,260		141,136		71,031
Forward equity offering	33,315		124,527		3,990
Market performance-based awards	463,488		570,049		641,279
Weighted average units outstanding—diluted	214,950,934		178,891,648		153,085,706
Income per unit:
Basic	$	1.21	$	0.99	$	2.21
Diluted	$	1.21	$	0.99	$	2.20

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

	Year Ended December 31,
	2018	2017	2016
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Units	1,876,584	540,773	—
Potentially dilutive Series E Cumulative Redeemable Preferred Units	—	—	2,880,254
Potentially dilutive Series F Cumulative Redeemable Preferred Units	—	463,301	1,939,905
Potentially dilutive Series G Cumulative Redeemable Preferred Units	2,326,861	2,261,153	2,652,503
Potentially dilutive Series H Cumulative Redeemable Preferred Units	3,409,772	3,313,484	3,886,966
Potentially dilutive Series I Cumulative Redeemable Preferred Units	2,329,584	2,263,799	2,655,607
Potentially dilutive Series J Cumulative Redeemable Preferred Units	1,858,622	720,803	—
	11,801,423	9,563,313	14,015,235