The automaker's much-anticipated IPO includes plans to offer preferred stock in addition to the usual common stock. What's the difference between them, and which is a better investment? Here's a quick rundown.
A little more than a year ago, bankrupt GM required a massive government bail-out. Today the company began its return to Wall Street by formally filing to hold an IPO. Yet it remains unclear if the once-troubled automaker will be a good investment.