Stock Splits and Buybacks: What They Do (and Don't Do) for Shareholders

Two kinds of corporate announcement regularly make headlines and move share prices: stock splits and share buybacks. One is mostly cosmetic; the other is a real use of the company’s cash. Here is how to tell the difference.

Stock splits: more slices, same pizza

In a 10-for-1 split, each share becomes ten shares, and the price per share falls to a tenth. If you owned 5 shares at $1,000 ($5,000 in total), you now own 50 shares at $100 — still $5,000. Nothing about the business has changed: same profits, same assets, same debt, same total market value.

A reverse split does the opposite, combining shares to raise the price, often to keep a struggling stock above an exchange’s minimum price requirement.

Why do companies split?

• Accessibility. A lower share price was once important because investors bought in round lots of 100 shares. Today many brokers let you buy fractional shares, so this matters less, though it can still help employees receiving stock and options traders (an option contract usually covers 100 shares).
• Index mechanics. The Dow Jones Industrial Average is price-weighted, so a very high share price can keep a company out of it or give it outsized weight. Splits have preceded some additions to the Dow.
• Signaling. Companies tend to split after their shares have risen a lot, which signals management confidence.

Stocks sometimes rise after a split announcement, but the split itself creates no value. Any lasting price change has to come from the business.

Buybacks: returning cash by shrinking the share count

In a share repurchase, a company uses its cash to buy its own shares on the market, then cancels them or holds them as treasury stock. With fewer shares outstanding, each remaining share represents a larger slice of the company.

A simple example

A company earns $100 million a year and has 100 million shares: earnings per share (EPS) is $1.00. It buys back 5 million shares. Profits are unchanged, but EPS rises to $100 million ÷ 95 million = about $1.05.

But the cash spent is gone. Whether shareholders benefit depends on the price paid:

• If the company buys shares below their true value, remaining shareholders gain, much as if they had bought more of a good business at a discount.
• If it buys above their true value, remaining shareholders lose. Companies have a mixed record here: buybacks tend to rise when profits and share prices are high and fall in recessions, when shares are cheapest.

Buybacks vs. dividends

Both return cash to shareholders. The differences:

• Flexibility. Dividends are sticky; cutting one is seen as a bad sign. Buybacks can be scaled up or down quietly.
• Taxes. Dividends are taxable to shareholders when paid. With a buyback, only shareholders who sell realize a gain; the others defer taxes. Since 2023, the United States has imposed a 1% excise tax on the net value of shares that large public companies repurchase, under the Inflation Reduction Act.
• Choice. With a buyback, each shareholder chooses whether to sell.

Things to watch

1. Net vs. gross buybacks. Many technology companies issue large amounts of stock to employees. A buyback may just offset that dilution, so the share count barely falls. Check the change in diluted shares outstanding over a few years.
2. Debt-funded buybacks. Borrowing to repurchase shares raises financial risk.
3. EPS targets. Because buybacks lift EPS without improving the business, compare growth in total net income, not just EPS.

The bottom line

A split is an accounting change: same company, more shares. A buyback is a capital-allocation decision: it can create value when shares are cheap and the company has spare cash, and destroy it when they are expensive or the money is borrowed. When reading the headline, ask what the company paid and why.