Anybody here have any idea with what's going on with GOOG and GOOGL? The two have always traded within a few dollars of each other (GOOGL contains voting rights) and have been a good arb between each other. Recently the spread has blown up, with GOOG trading around $90 over GOOGL. Any insight here?
A rule of thumb when you consider arbitrage strategies is that all obvious dumb arbitrage opportunities you spot most probably have hidden costs which eat profits. Basically I would say time, knowledge and money you invested to find some arb opportunity directly correlates with its profitability.