After the Fed announced QE2 would end in June, as originally planned, stocks continued to move up last week. This week, however, has been ugly, and not even Bin Laden's death can induce a rally. Is this a delayed reaction to QE2? Of course, the Fed may use other "tools" to pump money, but the fact they're ending QE2 has to mean something..at least symbolically. Or maybe it's a combination of the QE 2 ending announcement plus the traditional "sell in May" effect?