Although short selling -- the practice of selling borrowed shares with the hope of repaying the loan by buying back the shares at a lower price -- goes against the American belief that stocks always go up, I have long been fascinated with it. Short Stories discusses what works, what doesn't, and what some of the leading lights in shorting stocks think about its opportunities and threats. I describe possible short trades and seek your comments and questions for story ideas. I don't offer any investment advice and I don't trade on any of the posts I write.

Bally Total Fitness Holdings Inc. (Other OTC: BFTH), which I suggested shorting back in November, has filed for bankruptcy. According to Reuters, Bally listed $396.8 million of assets and $761.3 million of debts as of December 31. Its bankruptcy plan would wipe out common shareholders reduce debt by $150 million and provide $90 million of capital through a rights offering. Bally also lined up $292 million of financing to fund operations during and after bankruptcy proceedings. Today's announcement is confusing since it reportedly filed for bankruptcy in June, as well.

When I first suggested shorting Bally, I thought it was losing so much money that it would not be able to pay back its debts. It also had lots of accounting problems and was in violation of the terms of its lending agreements. But I was concerned that JPMorgan Chase & Co. (NYSE: JPM) had offered a rescue finance package and that hedge fund guru, Stevie Cohen was a big Bally investor.

But I turned out to be right and investors who had followed my advice and covered today would be 709% richer since Bally dropped from $2.59 to $0.32.

Peter Cohan is President of Peter S. Cohan & Associates, a management consulting and venture capital firm. He also teaches management at Babson College and edits The Cohan Letter. He has no financial interest in Bally.