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Glossary

Deal economics

What is accretion / dilution?

Whether an acquisition raises or lowers the buyer's earnings per share.

Paid in stock, a deal is accretive when the target's earnings yield on the price beats the buyer's own (1 ÷ P/E); paid in debt, when it beats the after-tax interest rate. Accretion says nothing about whether the price was right.

A worked example

An acquirer trades at 20x earnings. If it issues shares to buy a target at 15x earnings, it's swapping expensive paper for cheaper earnings, so EPS goes up: accretive. Pay 25x for the target and EPS goes down: dilutive.

Where it catches you in the game

  • Mandate cards show accretion at your number in years one and two; above the buyer's breakeven, bids disappoint.

It comes up most on the investment banking desk.

Related terms

Learn it by using it

Definitions stick once they've cost you money. Take a seat, make three calls a year and watch what accretion / dilution does to your returns.