Accretion/Dilution Analysis

Accretion/dilution analysis is a critical component of M&A (mergers and acquisitions) financial modeling that evaluates whether a proposed transaction will increase (be accretive to) or decrease (be dilutive to) the acquiring company's earnings per share (EPS). A deal is accretive if the combined company's pro forma EPS is higher than the acquirer's standalone EPS, and dilutive if it is lower. The analysis considers several factors: the price paid (premium over market value), the financing method (cash, stock, debt, or a combination), the target's earnings contribution, expected cost synergies, foregone interest income or new interest expense, and the change in share count if stock is used as currency. As a general rule, when an acquirer with a high P/E ratio buys a target with a lower P/E ratio using stock, the deal tends to be accretive. Conversely, when a low P/E company acquires a high P/E target with stock, the deal tends to be dilutive. While accretion/dilution is an important metric, it should not be the sole criterion for evaluating M&A — a deal can be accretive but destroy shareholder value if the acquirer overpays, and a dilutive deal can create long-term value through strategic positioning.