Stock Splits and Buybacks

A stock split gives every shareholder more shares at a proportionally lower price, so the value of each holding and of the company stays the same. A share buyback is different: the company spends real cash to buy its own shares and retire them, which shrinks the share count and returns money to the shareholders who sell.

In short: a split is like cutting a pizza into more slices. You have more pieces, but not more pizza. A buyback is the company buying some slices back from shareholders who want to sell. The remaining shareholders each own a slightly larger share of a company that now has less cash. Neither is automatically good or bad; what matters is the price paid and what else the money could have done.

Stock splits

In a forward split, each existing share becomes several. In a 2-for-1 split, one share becomes two; in a 10-for-1 split, one share becomes ten. The share price adjusts by the same factor, and so does every per-share figure: earnings per share, dividends per share, and the number of shares in the company’s outstanding count.

A worked example: a 10-for-1 split

You own 100 shares of a stock trading at $1,200.

	Before split	After 10-for-1 split
Your shares	100	1,000
Price per share	$1,200	$120
Value of your holding	$120,000	$120,000
Quarterly dividend per share	$0.10	$0.01
Your quarterly dividend	$10	$10

Nothing about the business changed. If the company had 2.4 billion shares outstanding at $1,200 (a market capitalization of $2.88 trillion), it now has 24 billion shares at $120: still $2.88 trillion.

A real case: Nvidia carried out a 10-for-1 split in June 2024. Shareholders of record on June 6, 2024 received nine additional shares for each share held after the close on June 7, and split-adjusted trading began on June 10. Its quarterly dividend went from $0.10 to $0.01 per share, the same total payout.

Why companies split

If splits change nothing in value, why do them?

• Accessibility. A lower per-share price was historically easier for small investors to buy in round lots of 100 shares. With fractional share trading now offered by many brokers, this reason matters less than it used to.
• Employee equity. Smaller per-share amounts can make stock compensation easier to administer.
• Index considerations. The Dow Jones Industrial Average is weighted by share price, so a very high-priced stock would dominate it. A split can make a company a more practical candidate. The mechanics are in what is a stock index.
• Signalling. Boards tend to split after a long rise, so a split announcement is sometimes read as management confidence. That is a reading of intent, not a change in value.

Index providers adjust for splits automatically, so a split does not change a stock’s weight in a market-cap-weighted index such as the S&P 500 or the S&P/TSX Composite.

Reverse splits

A reverse split combines shares. In a 1-for-10 reverse split, every ten shares become one, and the price multiplies by ten.

You own 5,000 shares at $0.40, worth 5,000 × $0.40 = $2,000. After a 1-for-10 reverse split you own 500 shares at about $4.00, still worth $2,000. If your holding doesn’t divide evenly, companies usually pay cash for the fractional share.

Reverse splits are often done by companies whose share price has fallen to a level that threatens their listing. Nasdaq, for example, requires most listed companies to keep a minimum bid price of $1.00. If a stock closes below that for 30 consecutive business days, the company gets a deficiency notice and generally has 180 calendar days to regain compliance. The NYSE has a similar $1.00 average-price standard. A reverse split can fix the price, but it does nothing about the business problems that pushed the price down, so many investors treat a reverse split as a yellow flag rather than good news.

Share buybacks

In a buyback (or share repurchase), a company uses cash to buy its own shares, usually on the open market over months or years. The repurchased shares are cancelled or held as treasury shares, and either way they stop counting as outstanding.

Buybacks are now larger than dividends among big US companies. S&P Dow Jones Indices reported that S&P 500 companies spent a record $942.5 billion on buybacks in calendar 2024, compared with $629.6 billion in dividends.

How they are done

• Open-market repurchases are the most common. In the US, SEC Rule 10b-18 gives a company a “safe harbor” from market-manipulation claims if its purchases meet conditions on timing, price, broker use, and volume (generally no more than 25% of the stock’s average daily trading volume).
• Normal course issuer bids (NCIBs) are the Canadian equivalent on the TSX. Under the TSX Company Manual, a company can buy back over 12 months up to the greater of 10% of its public float or 5% of its outstanding shares, with a daily limit generally equal to 25% of average daily trading volume.
• Tender offers (substantial issuer bids in Canada) offer to buy a set number of shares from all holders at a stated price, often a premium.
• Accelerated share repurchases use an investment bank to buy a large block up front.

Buybacks and earnings per share

Buybacks raise earnings per share (EPS) by reducing the number of shares, even if total profit doesn’t change. That’s worth understanding, because it can make EPS growth look stronger than profit growth. (Earnings per share is defined in the glossary.)

A worked example. Maple Widgets Inc. (hypothetical) earns net income of $100 million and has 50 million shares outstanding, trading at $40.

• EPS before: $100,000,000 ÷ 50,000,000 = $2.00
• It spends $200 million of cash buying back shares at $40: $200,000,000 ÷ $40 = 5 million shares retired.
• Shares after: 50 million - 5 million = 45 million.

If net income stayed at $100 million, EPS would be $100,000,000 ÷ 45,000,000 = $2.22, up 11.1%, with no improvement in the business.

But the cash wasn’t idle. Suppose it earned 4% interest: $200 million × 4% = $8 million a year before tax, or $6 million after a 25% tax rate. Without that interest, net income drops to $94 million, and EPS is $94,000,000 ÷ 45,000,000 = $2.09, up about 4.4%. The real benefit is smaller than the headline share-count change suggests.

Buybacks vs dividends

The same $200 million could have been paid as a dividend of $200,000,000 ÷ 50,000,000 = $4.00 per share. In a simple world without taxes or price effects, the two are equivalent ways of returning cash:

• With the dividend, every shareholder gets $4.00 per share in cash, and keeps the same percentage ownership.
• With the buyback, only the shareholders who sell get cash. Those who keep their shares own a larger slice. If you own 1,000 shares, you own 1,000 ÷ 50,000,000 = 0.002% before, and 1,000 ÷ 45,000,000 = 0.00222% after.

In practice they differ in several ways:

• Taxes. Dividends are taxed when received in taxable accounts. A buyback creates no tax for shareholders who don’t sell; those who sell realize a gain or loss. This is one reason buybacks became popular in the US.
• Flexibility. Investors expect regular dividends to continue, so a cut is painful. Buyback programs can be slowed or paused with less fuss.
• Price paid. A buyback is good for remaining shareholders only if the company pays less than the shares are worth. Buying back at high prices destroys value.

Since January 1, 2023, US public companies pay a 1% federal excise tax on the net value of shares they repurchase (net of shares issued), introduced by the Inflation Reduction Act of 2022. Canada introduced a 2% tax on net equity repurchases by Canadian public corporations for repurchases from January 1, 2024. Tax rules change; check the current status. The dividend side of the comparison is covered in how dividends work.

Stock-based pay and the real share count

Many companies, especially in technology, pay employees partly in shares or stock options. Each new share issued for that purpose dilutes existing holders, and part of what companies spend on buybacks simply offsets that dilution.

Continue with Maple Widgets. Over a year it issues 3 million new shares to employees, and spends $200 million buying back 5 million shares at $40.

• Starting shares: 50 million
• Plus employee shares: 50 + 3 = 53 million
• Minus buybacks: 53 - 5 = 48 million

The buyback announcement said 5 million shares, but the share count fell by only 2 million, or 4%. Of the $200 million spent, about 3 million × $40 = $120 million went to absorbing employee issuance, and only about $80 million actually shrank the share count.

That doesn’t make the buyback wasteful: employee pay has to come from somewhere, and paying it in stock and then buying shares back is economically similar to paying it in cash. But it means you should judge a buyback program by what happens to diluted shares outstanding over several years, which companies report in their income statements and annual reports, rather than by the headline dollar amount.

What can go wrong

• Mistaking a split for a gain. A split doesn’t make anyone richer. Price moves after a split come from the market, not the split.
• Reverse splits as warning signs. They often come from companies fighting to keep a listing, sometimes followed by more share issuance.
• Buybacks that only offset dilution. Companies that pay employees heavily in stock may buy back shares just to keep the share count from rising. Check whether shares outstanding actually fall over time, in the annual report and the cash flow statement.
• Bad timing. Companies have often bought back the most when prices and profits were high, and cut back in downturns when shares were cheapest.
• Debt-funded buybacks. Borrowing to buy back shares raises financial risk for the shareholders who remain.

The takeaway

Splits and reverse splits change the number of shares and the price per share by the same factor; the value of your holding and the company don’t change. Buybacks use real cash to shrink the share count, which lifts EPS and each remaining holder’s ownership. Whether that helps depends on the price paid and what the cash would otherwise have earned.

Related: How Dividends Work · What Is a Stock? · How to Read a Cash Flow Statement