v3.26.1
Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2026
Earnings Per Share [Abstract]  
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Anti-dilutive stock awards were as follows for the periods presented:
Quarter Ended
March 31,
(in thousands)20262025
Stock awards34 44 
Total34 44 
Basic And Diluted Earnings Per Share
The following table presents the earnings per share calculation for the periods presented:
 Quarter Ended
March 31,
20262025
Net Income (in millions)
$1,154.3 $956.2 
Less: preferred stock dividends— (5.7)
Add: overdistributed earnings allocated to preferred stock13.7 — 
Less: undistributed earnings allocated to preferred stock — (6.3)
Net Income Attributable to Common Shareholders of CME Group - Basic$1,168.0 $944.2 
Less: overdistributed earnings allocated to preferred stock(13.7)— 
Net Income Attributable to Common Shareholders of CME Group - Diluted $1,154.3 $944.2 
Weighted Average Number of Common Shares (in thousands):
Basic359,318 359,613 
Effect of restricted stock and performance shares682 614 
Effect of convertible preferred shares3,208 — 
Diluted363,208 360,227 
Earnings per Common Share Attributable to Common Shareholders of CME Group:
Basic$3.25 $2.63 
Diluted3.18 2.62