'Momo' Stocks Dumped During Bloody October

BOSTON ( TheStreet) -- The U.S. stock market has risen almost 10% so far in October, one of the best monthly performances in two decades. But investors in companies including Netflix ( NFLX) and First Solar ( FSLR) have been left out of the rally.

Those are called momentum, or momo, stocks, which refers to companies that rise for intangible reasons, not for their fundamentals. Before this month, they outperformed the broader market since the March 2009 bottom. But as earnings growth expectations have been reined in due to fears of the debt crisis in Europe and a slowdown in emerging markets, some high-flier stocks have been decimated.

Netflix

Before Tuesday's 2% drop, the S&P 500 was on pace for its biggest monthly performance since 1991. Still, Netflix, for example, has dropped more than 30% in October. Investors who bet on high-flying stocks have learned a painful lesson in chasing momentum.

"Educate yourself on beta," Robert Pavlik, chief market strategist with Banyan Partners, says with a laugh. "That's what you get. When you play with a hot piano, your fingers get burned. A good way to put it is that it's an exercise in risk management. You have to get educated and prepared with risk management."

It's been mostly a string of bad headlines that have sunk momo stocks. Netflix has been the prime example after CEO Reed Hastings bungled the separation of the company's DVD-by-mail and Internet-streaming services, as well as an unfavorable price increase.

Shares of Netflix took a sharp hit Tuesday after the company said late Monday that subscribers were leaving the service at a rapid clip and its much-ballyhooed international expansion was more costly than expected. Before this month, its shares more than tripled since late 2008.

Green Mountain Coffee Roasters ( GMCR) has been another beaten-down momentum stock. After doubling over the past year, Green Mountain has tanked 30% this month after hedge fund manager David Einhorn gave a presentation on why he is shorting the stock, calling attention to insider sales of stock and the company's poor transparency.

Shoemaker Crocs ( CROX) dropped 30% on its third-quarter earnings report. The stock, which is up a whopping 1,000% over the past three years, tumbled after the company cut its earnings and revenue outlook, and guided fourth-quarter sales below analysts' estimates.

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