v3.26.3
Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2026
Earnings Per Share [Abstract]  
Schedule of Anti-dilutive Stock Awards Anti-dilutive stock awards were as follows for the periods presented:
Quarter Ended
September 30,		Nine Months Ended
September 30,
(in thousands)2026202520262025
Stock awards296 — 15 79 
Total296 — 15 79 
Schedule of Earnings Per Share Calculation
The following table presents the earnings per share calculation for the periods presented:
Quarter Ended
September 30,		Nine Months Ended
September 30,
2026202520262025
Net Income (in millions)
$1,036.9 $908.0 $3,233.0 $2,889.3 
Less: preferred stock dividends— (5.7)— (17.2)
Add: overdistributed earnings allocated to preferred stock— — 1.2 — 
Less: undistributed earnings allocated to preferred stock — (5.7)— (19.1)
Net Income Attributable to Common Shareholders of CME Group - Basic$1,036.9 $896.6 $3,234.2 $2,853.0 
Less: overdistributed earnings allocated to preferred stock— — (1.2)— 
Net Income Attributable to Common Shareholders of CME Group - Diluted $1,036.9 $896.6 $3,233.0 $2,853.0 
Weighted Average Number of Common Shares (in thousands):
Basic358,019 359,686 359,336 359,653 
Effect of restricted stock and performance shares622 736 624 677 
Effect of convertible preferred shares— — 1,058 — 
Diluted358,641 360,422 361,018 360,330 
Earnings per Common Share Attributable to Common Shareholders of CME Group:
Basic$2.90 $2.49 $9.00 $7.93 
Diluted2.89 2.49 8.96 7.92