Skip to main content
The Why Markets
Investing Basics5 min read

How Stock Buybacks Work — And Whether They're Good for You

Apple buys back $90B of its own stock every year. Is that good for shareholders or just financial engineering? Here's what buybacks actually do to your shares.

The Why Markets
ShareXLinkedIn

What a Buyback Is

When a company buys back its own shares on the open market, those shares are retired (removed from circulation). Fewer shares outstanding means each remaining share represents a larger piece of the company.

Example: A company has 1,000 shares and earns $10,000. - EPS = $10,000 / 1,000 = $10 per share - Company buys back 100 shares → 900 shares remaining - EPS = $10,000 / 900 = $11.11 per share - Your EPS increased 11% without the company earning a single extra dollar

Why Companies Do Buybacks

  1. **Boost EPS:** The math above. Fewer shares = higher earnings per share.
  2. **Return cash to shareholders:** An alternative to dividends (more tax-efficient for investors in many cases).
  3. **Signal confidence:** "We think our stock is undervalued, so we're buying it ourselves."
  4. **Offset dilution:** Cancel out shares issued through employee stock options.

The Bull Case

  • Tax-efficient way to return capital (vs. dividends which are taxed immediately)
  • Flexible — company can stop buybacks if business conditions deteriorate
  • Increases your ownership percentage of the company
  • The biggest buyers in the stock market are the companies themselves

The Bear Case

  • Companies often buy back stock at the worst time (near highs when they feel flush with cash)
  • Can be used to artificially inflate EPS to hit executive bonus targets
  • Money spent on buybacks could be invested in R&D, hiring, or acquisitions
  • Doesn't create real economic value — just financial engineering

How to Evaluate a Buyback

A buyback is good when: - The stock is trading below intrinsic value (company is buying cheap) - The company has excess cash after investing in growth - Share count is actually decreasing year over year

A buyback is bad when: - The company is borrowing money to buy back stock - The stock is at all-time highs (buying expensive) - Share count isn't decreasing (buybacks just offset employee stock dilution)

Check the 10-K filing for "shares outstanding" over 3-5 years. If it's not declining despite billions in buybacks, the company is just treading water.

For informational purposes only — not financial advice.

buybacksshareholder-returnsepscapital-allocation
W
The Why Markets

Market intelligence for everyday investors. We explain what happened, why it matters, and what it means for your specific holdings — in plain English, every trading day.

More from The Why Markets →
Was this article helpful?
See how this affects your portfolio

Your daily brief connects market dynamics like these to your specific holdings.

Start Free
Related Reading
How to Read an Earnings Beat or Miss
Earnings · 6 min
What Beta Means for Your Portfolio
Investing Basics · 5 min
How to Read a Balance Sheet — The 5-Minute Version
Investing Basics · 5 min
← Previous
What Happens When the Fed Cuts Rates — A Sector-by-Sector Guide
Next →
Why Gold Rises During Uncertainty — And When It Doesn't