Note 5. Net Income Per Common Share

The following table shows the computation of basic and diluted net income per common share for the years ended June 30, 2025, 2024, and 2023 (in thousands, except per share amounts):

 Years Ended June 30,
 202520242023
Numerator:
Net income - basic$1,048,854 $1,152,666 $639,998 
Convertible Notes interest charge, net of tax5,726 1,480 — 
Net income - diluted$1,054,580 $1,154,146 $639,998 
Denominator:
Weighted-average shares outstanding - basic593,665555,878529,249
Effect of dilutive Convertible Notes4,6854,392
Effect of dilutive securities
30,05241,87630,455
Weighted-average shares outstanding - diluted628,402602,146 559,704 
Net income per common share - basic$1.77 $2.07 $1.21 
Net income per common share - diluted$1.68 $1.92 $1.14 

Potentially dilutive shares of common stock issuable upon conversion of our outstanding 2029 Convertible Notes, outstanding 2028 Convertible Notes, and outstanding 2030 Convertible Notes are determined using the if-converted method. For the year ended June 30, 2025, shares issuable upon conversion of the 2028 Convertible Notes and 2030 Convertible Notes were dilutive and were included within the numerator for interest and denominator for shares issuable upon conversion of the diluted net income per common share computation. For year ended June 30, 2025, shares issuable upon conversion of the 2029 Convertible Notes were anti-dilutive.

The following table presents the potentially dilutive shares that were excluded from the computation of diluted net income per share of common shares attributable to common stockholders, because their effect was anti-dilutive (in thousands):

 Years Ended June 30,
 202520242023
Stock-based awards
14,707 2,700 1,778 
Convertible notes20,673 — — 

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.