Oh the markets are stable eh? This is a sustainable recovery? Greece isn't imploding? Spain and Portugal aren't in line to follow?
What the hell then was this?
What triggered the crash? Who knows? (us lowly retail folks may never know the real cause). Of course, there will be plenty of speculation that there was some type of trader mistake, a fat fingered trade, but the point is...if one trader fucking up can trip off a wave of massive (oft computer controlled selling), then how stable is the market? Stick a fork in it, this bear market rally is done.