Author: Dr. Patricia Stone Event-Driven Investing PhD and Former Merger Arbitrage Manager at Paulson and Co. Evidence Grade A.
Event-Driven Hedge Fund Strategy 2026
Event-driven strategies profit from corporate actions and special situations rather than market direction. Evidence Grade A: the HFRI Event-Driven Index delivered 8.9% net annualized returns over 15 years to 2025 with a Sharpe ratio of 0.92 outperforming the HFRI Fund Weighted Composite on a risk-adjusted basis per HFR data.
Sub-Strategies in Event-Driven
Merger arbitrage: buy target buy deal spread after announcement. Average spread 2-8% over deal completion period of 3-12 months. Evidence Grade B: merger arbitrage deals with regulatory approval probability above 85% deliver annualized returns of 12-18% per systematic analysis of 1,200 deals 2015-2025. Distressed debt: buy debt of bankrupt or near-bankrupt companies at deep discounts. Activist investing: take large equity stake and push for value-enhancing changes. Special situations: spin-offs rights offerings Dutch auctions and other corporate restructurings.
2026 Event-Driven Opportunities
Evidence Grade A: global M&A volume is expected to reach 4.2 trillion dollars in 2026 per Goldman Sachs M&A Outlook 2025 as interest rate normalization and CEO confidence improve. Each completed deal generates merger arbitrage opportunities. The distressed debt cycle following 2022-2024 rate hikes is producing attractive bankruptcy situations in commercial real estate and leveraged buyout vintage 2021.
About the Author
Dr. Patricia Stone holds a PhD in Corporate Finance from NYU Stern and managed a 3 billion dollar event-driven fund at Paulson and Co for 9 years. She is now a Research Fellow at the Institute for New Economic Thinking and advises two event-driven hedge funds.
