Stock repurchases, or share buybacks, occur when a company buys back its own shares from the stock market, reducing the number of shares outstanding. This practice is often used as a strategy to enhance shareholder value and optimize the company's capital structure.

In addition to increasing earnings per share (EPS) by reducing the share count, stock repurchases offer other significant benefits. They provide a flexible method for returning excess cash to shareholders without committing to regular payments like dividends. This flexibility can be particularly valuable during market uncertainty or fluctuating earnings.

Stock repurchases also help counteract dilution caused by stock option plans or convertible securities. For instance, when employees exercise stock options, the number of shares outstanding increases, potentially reducing EPS and ownership percentages. Buybacks can offset this effect, preserving shareholder value.

From a tax perspective, share buybacks can be more advantageous for shareholders than dividends, as capital gains taxes are often deferred until shares are sold and may be taxed at lower rates. Excessive buybacks might limit funds for growth opportunities like research and innovation. When executed responsibly, stock repurchases can signal confidence in a company's prospects and benefit shareholders.