takeover arbitrage(n = noun.act) risk arbitrage - arbitrage involving risk; as in the simultaneous purchase of stock in a target company and sale of stock in its potential acquirer; if the takeover fails the arbitrageur may lose a great deal of money;
is a kind of arbitrage

arbitrage, bust-up takeover, friendly takeover, hostile takeover, risk arbitrage, takeover, takeover attempt, takeover bid, takeover target