The window for an initial public offering closed pretty quickly for most alternative investment firms, which were lining up to follow the likes of the Blackstone Group, Och-Ziff and Fortress Investment Group. In hindsight, for the few that managed to sell their shares, it's unclear whether the IPO was a blessing or a curse. They sold their shares at a decent price, but the aftermarket, as Fortune notes, has not been kind. Fortress and the Blackstone Group are down about 50 percent, with Och-Ziff not far behind. Still, you have to wonder whether this is a buying opportunity. There are those who believe the worst is over and that the top alternative investors are laying the groundwork for a revival of sorts, via distressed funds for example.  

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