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Charles Biderman is an American businessman and investor. In 1990 Mr Biderman founded and became CEO of TrimTabs Investment Research and is the author of TrimTabs Investing: Using Liquidity Theory to Beat the Stock Market. During the 1990's, Charles specialized in short-selling and tracking mutual funds developing into the only independent research service publishing daily coverage of US stock market liquidity during the peak of his reign at Trimtabs Investing.
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