The Uptick Rule & Fat Finger Idiocy

There's been no shortage of ridiculous explanations behind last Fridays stock market plunge which took the Dow Jones Industrial Average down 1,000 points. Perhaps the most preposterous of them all is the so called Fat Finger theory which suggests that some lone trader accidentally shorted S&P E-Mini futures contracts to the tune of $1 billion. This theory would be easily laughed away if it...