Hot-shot hedge fund manager, Kenneth Griffin, gets crushed

Kenneth Griffin, who manages the massive Citadel Investment Group Inc. hedge fund, has produced a sterling record over the past 20 years. Actually, he's one of the world's top money managers.

But, in "Black September," Griffin's tracked record got trashed. Apparently, his flagship fund is down as much as 22% for 2008.

Interestingly enough, Wall Street has been abuzz with rumors that Citadel is dumping lots of shares – putting further pressure on the markets (and may have accounted for some of yesterday's losses on the Dow and S&P).

But Citadel is not alone. Other hedge fund operators have also suffered major losses.

One key issue has been the erratic regulatory response to short selling (essentially, the ban made it illegal for hedge funds to make profits). Of course, investors have also been requesting redemptions.

In fact, it looks like some key hedge fund managers are staying on the sidelines (can you really make money when the markets look irrational?)

As for Citadel, the fund had some other problems. For example, Griffin loaded up on convertible securities. While such things are okay in normal times, they can become illiquid during periods of crisis. Besides, the short-selling ban made it excruciatingly difficult to employ arbitrage strategies.

Something else: with the significant losses, hedge funds will have a hard to getting incentive fees. The reason is that they need to recoup the losses (this is known as the high-water mark). As a result, many hedge funds may decide to close shop.

Tom Taulli is the author of various books, including The Complete M&A Handbook and The Streetsmart Guide to Short Selling: Techniques the Pros Use to Profit in Any Market. He is also the founder of BizEquity, a valuation website.