AeroVironment Wins Its Biggest Defense Contract Ever

Investors had reason to cheer last week. But the valuation on this drone stock remains sky high.I've been following military drone manufacturer AeroVironment (AVAV -2.32%) for a very long time -- ever since it was just a newborn babe of a defense stock after its 2007 initial public offering (IPO), in fact. And I have to tell you that, over all this time, I've never seen AeroVironment win a defense contract as big as the one that it won last Tuesday: $1 billion.Well,$990 million to be exact.The Aug. 27 edit ...