XML 30 R20.htm IDEA: XBRL DOCUMENT v3.25.3
Earnings Per Share
 9 Months Ended
Sep. 30, 2025
Earnings Per Share [Abstract]  
Earnings Per Share Earnings Per Share
The company uses the two-class method to calculate basic and diluted earnings per common share because the shares of its Series G preferred stock are participating securities. Under the two-class method, undistributed earnings are allocated to common stock and participating securities according to their respective rights in undistributed earnings, as if all of the earnings for the period had been distributed. Basic earnings per common share is computed by dividing the net income attributable to common shareholders by the weighted average number of common shares outstanding during the period. Net income attributable to common shareholders is reduced for preferred stock dividends earned during the period. Preferred stock also receives a proportionate allocation of undistributed or overdistributed earnings for the period because the shares of its Series G preferred stock have a contractual obligation to share in profits and losses of the company. Diluted earnings per share is computed by dividing the net income attributable to common shareholders by the weighted average number of common shares outstanding plus potentially dilutive common shares. Anti-dilutive stock awards were as follows for the periods presented:
Quarter Ended
September 30,		Nine Months Ended
September 30,
(in thousands)2025202420252024
Stock awards— 333 79 334 
Total— 333 79 334 
The following table presents the earnings per share calculation for the periods presented:
 Quarter Ended
September 30,		Nine Months Ended
September 30,
2025202420252024
Net Income (in millions)
$908.0 $912.8 $2,889.3 $2,651.2 
Less: preferred stock dividends(5.7)(5.3)(17.2)(15.8)
Less: undistributed earnings allocated to preferred stock(5.7)(6.2)(19.1)(17.6)
Net Income Attributable to Common Shareholders of CME Group$896.6 $901.3 $2,853.0 $2,617.8 
Weighted Average Number of Common Shares (in thousands):
Basic359,686 359,400 359,653 359,329 
Effect of restricted stock and performance shares736 589 677 570 
Diluted360,422 359,989 360,330 359,899 
Earnings per Common Share Attributable to Common Shareholders of CME Group:
Basic$2.49 $2.51 $7.93 $7.29 
Diluted2.49 2.50 7.92 7.27