What is merger arbitrage: Answer Guide 2027
Merger arbitrage is buying a takeover target's shares below the announced deal price and holding until the deal closes, pocketing the spread as compensation for deal-break risk. In a merger arbitrage interview, explain the spread mechanics, the annualized return math, and the risks that justify the return.
Merger Arbitrage Interview Questions: What They Test
The spread is the whole game. If an acquirer offers $50 cash and the target trades at $48, the $2 spread is the market's pricing of closing risk and time value. Annualize it: $2 on $48 over three months is roughly a 17% annualized return — attractive for what is largely market-neutral risk.
Interviewers want the risk taxonomy: regulatory blocks, shareholder votes failing, financing falling through, and material adverse changes. Stock deals add complexity — the arbitrageur typically shorts the acquirer's shares to lock in the exchange ratio, creating a hedged pair. Wider spreads mean the market assigns higher break odds, not free money.
How to Answer a Merger Arbitrage Interview Question
- Define it. "Buy the target below the deal price; earn the spread if the deal closes."
- Annualize an example. "$48 on a $50 deal closing in three months is about 17% annualized — the math is the pitch."
- List break risks. "Regulators, shareholder votes, financing, and MAC clauses — the spread prices all of them."
- Cover stock deals. "Short the acquirer's stock to hedge the exchange ratio and isolate the spread."
Common Mistakes in Merger Arbitrage Interview Answers
- Calling the spread "free money." The spread is risk compensation — saying otherwise reveals you do not understand the trade.
- Forgetting to annualize. A $2 spread means nothing without the timeline — always convert to an annualized return.
- Ignoring deal terms. Collars, walk-away rights, and proration in stock deals change the payoff — read the merger agreement logic.
Merger arb is the cleanest event-driven example to master — one spread, one timeline, one probability — and interviewers return to it constantly.
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FAQ
Q: How is the merger arbitrage spread calculated? A: Deal price minus the target's current market price, usually expressed as an annualized return based on the expected time to closing.
Q: Why does the spread exist? A: It compensates arbitrageurs for the risk the deal breaks and for the time value of money tied up until closing.
Q: What happens to the trade if the deal breaks? A: The target's price typically collapses toward its pre-announcement level, producing a sharp loss on the long position.
Q: How do arbitrageurs handle stock-for-stock deals? A: By shorting the acquirer's shares in the deal's exchange ratio, locking in the spread regardless of the acquirer's price moves.
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