What Is Multiple Expansion? Definition, How It Works and Examples

A valuation multiple divides a price by a measure of the business. Two common measures are earnings and revenue. A multiple of 10x means the price is ten times the measure. In private equity the usual measure is EBITDA, which is operating profit before interest, taxes, depreciation and amortization. The price in that case is the enterprise value, meaning the value of the whole business, debt included.

Multiple expansion is the change in that number between purchase and sale. Buy at 10x and sell at 12x, and the multiple has expanded by two turns. The sale price rises by two times the earnings, with no change in the business. The reverse is multiple contraction. An investor’s total gain comes from three sources: growth in earnings, a change in the multiple and money earned or repaid on debt.

In stocks, the usual multiple is the price-to-earnings ratio (P/E). It is the share price divided by the profit per share. A stock earning $5 a share at a P/E of 15 trades at $75. If profit stays at $5 and investors begin to pay 18 times earnings, the price rises to $90. That is a 20% gain from the multiple alone. Analysts call this a re-rating.

Investors pay a higher multiple when they expect faster growth, when interest rates fall or when they feel more confident about the market. The opposite moves bring contraction. A stock can fall even while its profit rises if the multiple shrinks faster.

Private equity (PE) firms buy companies with money from outside investors, run them for several years and sell. Many deals are a leveraged buyout (LBO). That is a purchase paid for partly with borrowed money, which the company itself then has to repay. Because debt covers part of the price, a change in the exit multiple moves the investors’ equity gain a lot. The table shows one invented deal.

The result is shown as the multiple on invested capital (MOIC), which divides the equity value at exit by the equity put in. The flat case returns 2.0x. The 12x case returns 2.6x. The 8x case returns 1.4x. The multiple moved the result by 0.6x in each direction, and the business was the same in all three.

Bain & Company, a consulting firm that tracks the industry, says this was a large part of the past decade. Its 2026 Global Private Equity Report states that low interest rates led to steadily rising multiples, which powered over 50% of all buyout returns. The report adds that easy multiple expansion is gone for the foreseeable future. Almost 80% of managers in the StepStone/Bain survey expect multiples to stay flat in 2026.

Bain built an illustrative US example to show what flat multiples mean. It asks how fast a company’s profit must grow for an investor to earn 2.5x in five years. In 2015 the answer was 5% a year. In 2025 it is 12%. The table lists the assumptions behind it.

For a private company outside the buyout world, the same logic applies in a different form. Many venture-backed companies have little profit, so investors price them on a multiple of revenue instead. A later round at a higher revenue multiple is multiple expansion, even if revenue is flat. A listing can reprice it again. IPO pop shows how the first-day price can differ from the last private round. In a sale of private shares, buyers may also apply a discount for lack of marketability, which lowers the price because the shares cannot be sold freely.

Common Mistakes

• Counting the multiple as business growthA higher multiple changes what buyers pay for the same earnings. It does not make the company bigger.
• Assuming multiples keep risingBain’s report says easy multiple expansion is gone, and most managers expect flat multiples in 2026.
• Comparing multiples of different measuresA multiple of EBITDA, of earnings and of revenue are not interchangeable.
• Ignoring debtBorrowed money magnifies a change in the multiple in both directions.
• Forgetting contractionA fall in the exit multiple can wipe out the gain from growth.

Multiple

A price divided by a measure of the business, such as earnings, EBITDA or revenue.

EBITDA

Operating profit before interest, taxes, depreciation and amortization.

Leveraged buyout

A purchase of a company paid for partly with borrowed money that the company repays.

Multiple contraction

A fall in the valuation multiple between purchase and sale.

MOIC

Multiple on invested capital: the value at exit divided by the money put in.

Enterprise value

The value of the whole business, including its debt.

Re-rating

A change in the multiple the market pays for a company.

Figures were last checked on October 13, 2026. The 2015 and 2025 assumptions come from Bain’s illustrative US example. The worked examples on this page are invented.