Insiders sell like there's no tomorrow

Insiders sell like there's no tomorrow

NEW YORK (Fortune) -- Can hundreds of stock-selling insiders be wrong?

The stock market has mounted an historic rally since it hit a low in March. The S&P 500 is up 55%, as U.S. job losses have slowed and credit markets have stabilized.

But against that improving backdrop, one indicator has turned distinctly bearish: Corporate officers and directors have been selling shares at a pace last seen just before the onset of the subprime malaise two years ago.

While a wave of insider selling doesn't necessarily foretell a stock market downturn, it suggests that those with the first read on business trends don't believe current stock prices are justified by economic fundamentals.