Net Income Per Share Attributable to Common Stockholders
Basic net income per share attributable to common stockholders is calculated by dividing net income attributable to common stockholders by the weighted-average shares outstanding during the period, without consideration for common stock equivalents. Diluted net income per share attributable to common stockholders is computed by dividing the net income by the weighted-average number of shares of common stock and common stock equivalents outstanding for the period. Common stock equivalents consist of common stock issuable upon (1) exercise of stock options and (2) vesting of restricted stock awards, restricted stock units and performance-based restricted stock units (collectively, “restricted stock”).
For the years ended December 31, 2025, 2024 and 2023, there were (1) 571 thousand, 236 thousand and 897 thousand, respectively, common stock equivalents outstanding in the form of stock options, and (2) 1 thousand, 1 thousand and zero, respectively, in unvested restricted stock that have been excluded from the calculation of diluted net income per common share as their effect would be anti-dilutive.
Years Ended December 31,
(in thousands, except per share data)202520242023
Numerator:
Net income
$204,831 $89,159 $10,932 
Denominator:
Weighted-average basic common shares28,944 28,592 27,154 
Dilutive effect of stock options and unvested restricted stock1,007 1,148 598 
Weighted-average diluted common shares29,951 29,740 27,752 
Net income per common share—basic
$7.08 $3.12 $0.40 
Net income per common share—diluted
$6.84 $3.00 $0.39 

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.