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Stock Buybacks: Why Companies Buy Their Own Shares

Beginner Investing • 6 min

When a company announces a $10 billion stock buyback, its earnings per share can rise even if the company's actual total profit doesn't grow at all. That's not a trick, exactly — it's simple math. If a company has 1 billion shares and buys back 100 million of them, the same total profit is now divided among 900 million shares instead of 1 billion, mechanically raising the profit-per-share number.

Companies buy back stock for real reasons: returning excess cash to shareholders (an alternative to paying a dividend), signaling confidence that the stock is undervalued, and offsetting the dilution from employee stock compensation.

Insider Angle: the criticism worth understanding: because so much of executive compensation is tied to per-share metrics (EPS, stock price), buybacks can boost the numbers that determine a CEO's bonus without the underlying business actually growing. Critics argue this creates an incentive to buy back stock instead of investing in R&D, wages, or expansion — supporters counter that buybacks simply return capital a company doesn't have a better use for, which is a legitimate, shareholder-friendly choice, not a red flag by itself.
Try This: Look up a large company's recent buyback announcement (the dollar amount) and compare it to its market cap — what percentage of the company's total value is that buyback, and what does that suggest about how much cash the company has beyond what it needs to reinvest?
Try This — Live Data

AAPL's real, most recently reported annual buyback dollar figure from SEC filings.

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