Traders are betting big against gun stocks (RGR, AOBC)

David Becker/Getty Images A strange and unexpected thing happens to gun stocks after a mass shooting: they go up. It adds a perverse twist to an already terrible situation, as firearm enthusiasts race to stockpile weapons out of fear that gun control legislation will hamper future purchases. It also exposes the dirty truth of gun stocks: rather than moving on more traditional fundamental factors, their direction is often largely dictated by developments in the ongoing gun control debate. That dy...