The Merger Arbitrage Spread: 2008-2012 Trend and Factors Affecting the Spread

The purpose of this paper serves to act as a continuation of a prior study conducted by Gaurav Jetley and Xinyu Ji explaining the decrease in merger arbitrage spread returns for the time period 1990-2007. Based on further research and analysis, it was concluded the merger arbitrage spread has continued to decline for the years 2008-2012. Part of the decline may be explained by a reduction in trading costs associated to merger arbitrage, capacity constraints (given an increase in devoted capital to the merger arbitrage investment strategy with a limited number of deals), as well as decreased risks. The narrowing arbitrage spread can also be attributed to transaction characteristics and their effect on deals' spreads. The findings conclude that a portion of the decline is likely to be permanent, and that investors seeking to invest using the merger arbitrage strategy should consider spread returns from the most recent years and over a shorter time period.