Net Income Per Share
Basic net income per share is computed using the weighted average number of common shares outstanding for the period, excluding unvested RSUs and stock options. Diluted net income per share is based upon the weighted average common shares outstanding for the period plus dilutive potential common shares, including unvested RSUs and stock options using the treasury stock method.
The following table sets forth the computation of basic and diluted net income per share for fiscal years 2025, 2024 and 2023 (in thousands):
 Year Ended December 31,
 202520242023
Net income$45,496 $35,932 $110,269 
Shares used to compute basic net income per share35,290 35,330 35,878 
Dilutive potential common shares:
Stock options and employee stock purchase plan shares— 40 100 
Unvested restricted stock awards978 288 264 
Shares used to compute diluted net income per share36,268 35,658 36,242 
Basic net income per share$1.29 $1.02 $3.07 
Diluted net income per share$1.25 $1.01 $3.04 
Potentially dilutive shares included in the calculation2,953 1,157 1,034 
Anti-dilutive shares excluded from the calculation1,539 1,551 944 

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.