Earnings Per Share
The following table summarizes earnings per share calculations for the years ended December 31, 2025, 2024 and 2023:
202520242023
Basic earnings per common share
Net (loss) income attributable to Quaker Chemical Corporation$(2,488)$116,644 $112,748 
Less: loss (income) allocated to participating securities20 (375)(555)
Net (loss) income available to common shareholders$(2,468)$116,269 $112,193 
Basic weighted average common shares outstanding17,472,90717,850,46217,892,461
Basic (loss) earnings per common share$(0.14)$6.51 $6.27 
Diluted earnings per common share
Net (loss) income attributable to Quaker Chemical Corporation$(2,488)$116,644 $112,748 
Less: loss (income) allocated to participating securities20 (375)(554)
Net (loss) income available to common shareholders$(2,468)$116,269 $112,194 
Basic weighted average common shares outstanding17,472,90717,850,46217,892,461
Effect of dilutive securities— 19,60522,348
Diluted weighted average common shares outstanding17,472,90717,870,06717,914,809
Diluted (loss) earnings per common share$(0.14)$6.51 $6.26 
Certain stock options, restricted stock units and PSUs are not included in the diluted earnings per share calculation when the effect would be anti-dilutive. The number of anti-dilutive shares were 79,144, 32,353, and 10,621 for the years ended December 31, 2025, 2024 and 2023, respectively.

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.