6. PER SHARE INFORMATION: The amounts used to compute basic and diluted earnings per share attributable to common stock consisted of the following (in thousands): | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three Months Ended | | Nine Months Ended | | | September 30, | | September 30, | | | 2026 | | 2025 | | 2026 | | 2025 | | Amounts attributable to common stock: | | | | | | | | | | Net income attributable to common stock | | $ | 694,859 | | | $ | 339,420 | | | $ | 1,366,865 | | | $ | 712,928 | | | | | | | | | | | | Weighted average shares: | | | | | | | | | | Weighted average shares outstanding for basic earnings per share attributable to common stock | | 150,533 | | | 149,039 | | | 150,176 | | | 148,590 | | Effect of dilutive unvested non-participating stock-based awards (1) | | 2,160 | | | 2,457 | | | 2,212 | | | 2,538 | | | Weighted average shares outstanding for diluted earnings per share attributable to common stock | | 152,693 | | | 151,496 | | | 152,388 | | | 151,128 | |
(1) Performance stock units (PSUs) are included in the weighted-average common equivalent shares based on the number of shares that would be issued if the performance period ended on the last day of the reporting period, if the result would be dilutive.
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