Income Per Share Information
The calculations of basic and diluted income per share attributable to CBRE Group, Inc. stockholders are as follows (dollars in millions, except share and per share data):
Year Ended December 31,
202420232022
Basic Income Per Share
Net income attributable to CBRE Group, Inc. stockholders$968 $986 $1,407 
Weighted average shares outstanding for basic income per share305,859,458 308,430,080 322,813,345 
Basic income per share attributable to CBRE Group, Inc. stockholders$3.16 $3.20 $4.36 
Diluted Income Per Share
Net income attributable to CBRE Group, Inc. stockholders$968 $986 $1,407 
Weighted average shares outstanding for basic income per share305,859,458 308,430,080 322,813,345 
Dilutive effect of contingently issuable shares2,174,154 4,120,862 4,882,770 
Weighted average shares outstanding for diluted income per share308,033,612 312,550,942 327,696,115 
Diluted income per share attributable to CBRE Group, Inc. stockholders$3.14 $3.15 $4.29 
For the years ended December 31, 2024, 2023 and 2022, 9,222, 338,711 and 1,312,197, respectively, of contingently issuable shares were excluded from the computation of diluted income per share because their inclusion would have had an anti-dilutive effect.

About Earnings Per Share Disclosures

The earnings per share disclosure breaks down the calculation from net income to both basic and diluted EPS, revealing the full impact of a company's capital structure on per-share economics. The reconciliation between basic and diluted share counts exposes how many stock options, RSUs, convertible securities, and warrants are potentially dilutive to existing shareholders.

Key signals: a widening gap between basic and diluted shares indicates growing dilution from equity compensation or convertible instruments. Anti-dilutive securities excluded from the diluted calculation deserve attention — they represent latent dilution that will materialize if the stock price rises. Watch for the effect of share buybacks on per-share metrics: EPS growth driven primarily by repurchases rather than income growth signals weakening fundamentals. Compare year-over-year changes in the diluted share count against equity compensation expense to assess whether management is effectively managing dilution.