Market Returns and Interim Risk in Mergers

Abstract

A primary concern in mergers and acquisitions is the risk the deal may be cancelled before it is completed. We document that “interim risk” varies asymmetrically with the aggregate market return. Deals tend to be renegotiated when the market rises, but cancelled when the market crashes. These effects are conditional on the method of payment and the contracting stage of the deal, consistent with a mechanism of ex post renegotiation. Variation in interim risk over time alters the method of payment in mergers and the firms that are targeted and acquired. This paper was accepted by Victoria Ivashina, finance. Supplemental Material: The e-companion and data are available at https://doi.org/10.1287/mnsc.2022.4315 .