Accretion (M&A)
In mergers and acquisitions, accretion describes the increase in an acquirer's earnings per share that results from completing a transaction, meaning the combined company's pro forma EPS is higher than the acquirer's standalone EPS — a condition generally viewed as favorable by equity analysts and a key criterion boards use when evaluating deal financial terms.
When a company announces an acquisition, equity analysts and investors immediately perform an accretion/dilution analysis to assess whether the deal is financially beneficial to existing acquirer shareholders on an EPS basis. Accretion occurs when the after-tax earnings added by the acquired business — adjusted for synergies and financing costs — exceed the additional shares issued or interest expense incurred to fund the transaction.
The mechanics of accretion analysis depend on the deal structure. In an all-cash deal financed with debt, the acquirer adds the target's net income to its own but incurs after-tax interest expense on the acquisition debt. Accretion results when the target's earnings yield (net income divided by the purchase price) exceeds the after-tax cost of the acquisition debt. In an all-stock deal, accretion depends on whether the target's P/E ratio is lower than the acquirer's — if an acquirer trading at 20x earnings buys a target at 15x earnings using its own shares as currency, it is purchasing earnings cheaply and the deal is immediately accretive.
Investment bankers describe a deal as 'X percent accretive in year one' to indicate how much higher the combined company's EPS will be compared to the acquirer's standalone forecast. A deal that is 5 percent accretive in year one means pro forma EPS is 5 percent above what the acquirer would have earned without the transaction, assuming synergies are realized on schedule.
Accretion and dilution analyses are typically presented on both a GAAP and cash EPS basis. GAAP figures include purchase accounting adjustments — primarily amortization of acquired intangible assets — that can convert an otherwise accretive deal to dilutive on a reported basis. Cash EPS or adjusted EPS analyses add back non-cash amortization to show the underlying economic EPS impact, and this adjusted view is typically emphasized by management and analysts when evaluating deal merit.
While accretion is commonly treated as a positive indicator, it is not sufficient proof that a deal creates value. An acquisition can be accretive while simultaneously overpaying for the target relative to its true intrinsic value — particularly if the accretion is achieved by issuing high-priced acquirer stock or by modeling aggressive synergy assumptions. Value creation requires that the present value of incremental free cash flows exceeds the premium paid, a standard that EPS accretion alone does not guarantee.