SOUTHWEST AIRLINES CO Earnings Per Share Disclosure
| Year ended December 31, | |||||||||||||||||
| 2025 | 2024 | 2023 | |||||||||||||||
| NUMERATOR: | |||||||||||||||||
| Net income | $ | 441 | $ | 465 | $ | 465 | |||||||||||
| Add: Interest expense (a) | 6 | 20 | 19 | ||||||||||||||
| Deduct: Unrealized mark-to market adjustment on forward contract (a)(b) | (5) | — | — | ||||||||||||||
| Net income attributable to common stockholders | $ | 442 | $ | 485 | $ | 484 | |||||||||||
| DENOMINATOR: | |||||||||||||||||
| Weighted-average shares outstanding, basic | 540 | 598 | 595 | ||||||||||||||
| Dilutive effects of convertible notes | 15 | 43 | 43 | ||||||||||||||
| Dilutive effect of restricted stock units | 3 | 2 | 2 | ||||||||||||||
| Adjusted weighted-average shares outstanding, diluted | 558 | 643 | 640 | ||||||||||||||
| NET INCOME PER SHARE: | |||||||||||||||||
| Basic | $ | 0.82 | $ | 0.78 | $ | 0.78 | |||||||||||
| Diluted | $ | 0.79 | $ | 0.76 | $ | 0.76 | |||||||||||
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.