Earnings Per Share
Basic and diluted earnings per share were calculated as follows:
 Years ended December 31
In millions, except per share data202520242023
Net income$653.8 $625.4 $622.7 
Net income from continuing operations$649.5 $625.6 $622.9 
Weighted average ordinary shares outstanding
Basic164.1 165.6 165.1 
Dilutive impact of stock options and restricted stock awards1.4 1.5 1.2 
Diluted165.5 167.1 166.3 
Earnings per ordinary share
Basic
Continuing operations$3.96 $3.78 $3.77 
Discontinued operations0.03 — — 
Basic earnings per ordinary share $3.99 $3.78 $3.77 
Diluted
Continuing operations$3.93 $3.74 $3.75 
Discontinued operations0.03 — — 
Diluted earnings per ordinary share $3.96 $3.74 $3.75 
Anti-dilutive stock options excluded from the calculation of diluted earnings per share
0.1 0.1 0.3 

Historical Timeline

Fiscal YearFiled
2025Feb 24, 2026Showing above
2017Feb 27, 2018

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.