i'm open to suggestion as far as finding e t f that employ merger arbitrage strategies, but i haven't run across one that i would feel confident enough to actually aplocate any money to. Chris cole is a fund manager with a firm called artemis capital, and he has come up with something called the dragon portfolio which you might describe as risk parody on steroids. The main problem i saw with at least the funds that available is that they just have low returns, so would be a drag in terms of the return profile. And then they are not sufficiently negatively correlated with your stocks to really give you a big diversification benefit.