Income Per Share
The following table shows how we reconcile our net income and the number of shares used in computing basic and diluted net income per share:
(in millions, except per share amounts)202520242023
Basic net income per share:
Consolidated net income $374.2 $369.9 $141.1 
Weighted average common shares outstanding41.9 42.8 42.6 
Basic net income per share$8.93 $8.64 $3.31 
Diluted net income per share:
Consolidated net income$374.2 $369.9 $141.1 
Weighted average common shares outstanding41.9 42.8 42.6 
Net effect of dilutive stock awards0.3 0.3 0.3 
Weighted average common shares outstanding for computing diluted income per share42.2 43.1 42.9 
Diluted net income per share$8.87 $8.58 $3.29 
During the periods presented, we have outstanding restricted stock units (RSUs), market stock units (MSUs), and performance stock units (PSUs) that are excluded from our calculation of diluted earnings per share as their effect is antidilutive. The number of these potential antidilutive shares was immaterial.

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.