Strategy

Event-Driven / Merger Arbitrage

Profit from corporate events like takeovers by capturing predictable price spreads.

medium riskHedge style

How it works

Event-driven investing profits from corporate events: mergers, spin-offs, bankruptcies, and restructurings. Its best-known form is merger arbitrage. When one company agrees to buy another, the target usually trades just below the offer price because a deal might fall through. The arbitrageur buys the target (and often shorts the acquirer in stock deals), capturing that spread as the deal closes over weeks or months. The return is largely independent of the market's direction, resembling insurance underwriting: you collect small, steady premiums for bearing deal-completion risk. The nightmare is a deal breaking on regulatory or financing grounds, which can erase many small gains in a single blow.

The trade-offs

✅ Strengths

  • Returns largely uncorrelated with the broad market
  • Predictable outcomes with defined timelines and payoffs
  • Steady 'bond-like' income in normal conditions

⚠️ Weaknesses

  • Deal breaks cause sharp losses ('nickels in front of a steamroller')
  • Spreads are thin, so leverage is often needed
  • Regulatory and antitrust risk is hard to handicap

Publicly associated with

John Paulson (early merger arb)Guy Wyser-PratteJoel Greenblatt (special situations)Warren Buffett (opportunistically)

Naming a practitioner is historical, educational context — never an endorsement.

Legends who play this way

Play the Event-Driven / Merger Arbitrage style in Conviction League

Draft a critter that trades this way, train it on a simulated market, and backtest it on the leaderboard — free and fully simulated, so there's zero real-money risk.