Earnings Per Common Share

12 Months Ended

Dec. 31, 2020

The calculation of earnings per common share is as follows:


	Years ended December 31,
In millions, except per share data	2020	2019	2018
Net income attributable to Invesco Ltd.	$524.8	$564.7	$882.8

Invesco Ltd:
Weighted average common shares outstanding - basic	459.5	437.8	412.4
Dilutive effect of non-participating common share-based awards	3.0	2.7	0.1
Weighted average common shares outstanding - diluted	462.5	440.5	412.5

Earnings per common share:
-basic	$1.14	$1.29	$2.14
-diluted	$1.13	$1.28	$2.14

See Note 12, “Common Share-Based Compensation,” for a summary of common share awards outstanding under the company's common share-based payment programs. These programs could result in the issuance of common shares that would affect the measurement of basic and diluted earnings per common share. There were 0.3 million common shares of performance-vested awards excluded from the computation of diluted earnings per common share during the year ended December 31, 2020 due to their inclusion being anti-dilutive (years ended December 31, 2019: 0.7 million; December 31, 2018: 0.5 million). There were no common shares of time-vested awards excluded from the computation of diluted earnings per common share during the year ended December 31, 2020 (years ended December 31, 2019: none; December 31, 2018: none). There were no contingently issuable common shares excluded from the diluted earnings per common share computation during the year ended December 31, 2020 (December 31, 2019: none; December 31, 2018: none ), because the necessary performance conditions for the common shares to be issuable had not yet been satisfied at the end of the respective period.