Buyback (Share Repurchase)

When a company buys its own shares from the market, reducing outstanding shares.

What Is a Share Buyback?

A share buyback (or share repurchase) occurs when a company uses its cash to buy its own stock on the open market, reducing the total number of outstanding shares. This increases the ownership percentage and EPS for remaining shareholders.

How Buybacks Boost EPS

If a company earns $1 billion and has 1 billion shares outstanding, its EPS is $1.00. If it buys back 100 million shares, the same $1 billion in earnings is now spread across only 900 million shares — raising EPS to $1.11 without any improvement in the underlying business.

Buybacks vs. Dividends

Both are ways to return cash to shareholders. Buybacks are more tax-efficient (no immediate tax event for shareholders) and more flexible (companies can pause buybacks without the negative signal of cutting a dividend). However, dividends provide consistent income and demonstrate management confidence in future cash flows.

The Controversy

Critics argue that companies sometimes buy back stock at inflated prices, destroying shareholder value. The best buybacks happen when a stock is undervalued — which, ironically, is when companies often have the least cash to spend. Watch for buybacks announced alongside insider selling — that's a red flag.