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Earnings Per Share | 6 Months Ended
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Jun. 30, 2026
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share The following table summarizes earnings per share calculations:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2026 |  | 2025 |  | 2026 |  | 2025
Basic earnings per common share |  |  |  |  |  |  |
Net income (loss) attributable to Quaker Chemical Corporation | $ | 26,835 |  |  | $ | (66,580) |  |  | $ | 46,504 |  |  | $ | (53,658) |
Less: (income) loss allocated to participating securities | (128) |  |  | 82 |  |  | (153) |  |  | 91 |
Net income (loss) available to common shareholders | $ | 26,707 |  |  | $ | (66,498) |  |  | $ | 46,351 |  |  | $ | (53,567) |
Basic weighted average common shares outstanding | 17,109,417 |  | 17,572,447 |  | 17,217,771 |  | 17,605,920
Basic earnings (loss) per common share | $ | 1.56 |  |  | $ | (3.78) |  |  | $ | 2.69 |  |  | $ | (3.04) |
Diluted earnings per common share |  |  |  |  |  |  |
Net income (loss) attributable to Quaker Chemical Corporation | $ | 26,835 |  |  | $ | (66,580) |  |  | $ | 46,504 |  |  | $ | (53,658) |
Less: (income) loss allocated to participating securities | (127) |  |  | 82 |  |  | (153) |  |  | 90 |
Net income (loss) available to common shareholders | $ | 26,708 |  |  | $ | (66,498) |  |  | $ | 46,351 |  |  | $ | (53,568) |
Basic weighted average common shares outstanding | 17,109,417 |  | 17,572,447 |  | 17,217,771 |  | 17,605,920
Effect of dilutive securities | 90,249 |  | 20,524 |  | 81,511 |  | 24,621
Diluted weighted average common shares outstanding | 17,199,666 |  | 17,592,971 |  | 17,299,282 |  | 17,630,541
Diluted earnings (loss) per common share | $ | 1.55 |  |  | $ | (3.78) |  |  | $ | 2.68 |  |  | $ | (3.04) |
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 28,040 and 39,405, respectively, for the three and six months ended June 30, 2026, compared to 60,117 and 67,575, respectively, for the three and six months ended June 30, 2025

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