01The arithmetic, in round numbers
A company earns $100M with 100 million shares outstanding: EPS of $1.00. It buys back and retires 10 million shares. The following year it earns $100M again, but now across 90 million shares: EPS of $1.11.
That is 11% more earnings per share with no improvement whatsoever in the business. And if the market applies the same P/E as before, the share price rises by that 11%.
02When it genuinely creates value
A buyback is a purchase. And like any purchase, it creates or destroys value depending on the price: buying back below intrinsic value enriches whoever stays; buying back above it impoverishes them.
Management is buying its own company with shareholders' money. If it overpays, the shareholder who did not sell has funded a bad investment without being asked.
And the recurring pattern is the worst possible one: buybacks surge when cash is plentiful and the stock is expensive, and stop during crises, which is when the stock is cheap. Buying high and not buying low is the opposite of what an investor would do.
03The buyback that returns nothing
There is a very common case worth learning to spot: the buyback that only offsets the dilution from share-based compensation.
If a company issues new shares to pay its staff and then buys back roughly the same quantity, the share count does not fall: it stays flat. No capital is being returned to shareholders; payroll is being paid with cash from the balance sheet through a route that does not appear as salary in the income statement.
The check is direct: look at shares outstanding across several years. If the count does not fall despite the announced buybacks, you know where the money went.
04Four things to look at
- The share count, year by year. It is the only judge of whether the buyback was real.
- Total profit beside EPS. If one grows and the other does not, the difference is the share count.
- What price they paid. Companies publish the amount spent and the shares acquired; dividing gives the average price, which can be compared against where the stock trades today.
- Where the money came from. Buying back with surplus cash and buying back with borrowed money are two different decisions under the same headline.
Frequently asked questions
Why does a buyback increase EPS?
Because profit is divided among fewer shares. A company earning $100M with 100 million shares has EPS of $1.00; if it buys back and retires 10 million shares and earns $100M again, EPS becomes $1.11. That is 11% more with no improvement in the business, which is why total profit should always be read beside EPS.
Are stock buybacks good for shareholders?
It depends on the price. A buyback is a purchase, and like any purchase it creates value if paid below intrinsic value and destroys it if paid above. The usual pattern is the worst one: buybacks surge when cash is plentiful and the stock is expensive, and stop during crises, when it is cheap.
How can you tell if a buyback is real?
By looking at shares outstanding across several years. Many buybacks only offset the dilution from share-based compensation: the company issues new shares to pay staff and repurchases a similar quantity, so the count stays flat. In that case no capital is returned to shareholders; payroll is being funded from the balance sheet through a route that never appears as salary.
Which is better, a dividend or a buyback?
They are two ways of returning capital with different effects. A dividend is cash in your account and is taxed in the year you receive it; a buyback increases your stake with no taxable event until you sell. The buyback adds flexibility and the drawback of depending on management buying at a sensible price, which a dividend does not require.
The figures in the example are invented and rounded so the arithmetic can be redone by hand. They correspond to no real company.
This is information and analysis, not financial advice, and it contains no recommendation to buy or sell. See the disclaimer.
