When a $7 a share biotechnology company like Dendreon Corp. (NASDAQ: DNDN) rockets 200% to over $20 a share in one day, like it did yesterday after reporting successful Phase 3 trials of its prostate cancer drug, investors get interested in any biotech stock under $10.But before investing in these speculative companies, you should have a clear understanding of how this niche operates. Marketing plays an important role in order for the companies to raise capital, therefore if you are interested in betting on a company's future, you should consider the risk factors and odds of success.
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