It often seems that Wall Street picks the latest "hot" tech stocks based on little more than a sexy name. In the biotechnology arena, especially, there's a surfeit of both sexy names (Ariad, Biomatrix, Mitotix, Valentis) and uninformed investors. When President Bill Clinton and British Prime Minister Tony Blair issued a joint statement in March endorsing the immediate release of raw DNA sequence data by labs doing genomic research, flighty investors assumed that the two governments planned to restrict the patenting of human genes, sending the stocks of firms such as Celera and Incyte into a nosedive. In fact, both Britain and the United States already openly share genetic data. Investors "don't understand what they're investing in," one industry expert told Science magazine.

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