Charles Biderman (born 1946) is the Founder and Chief Executive Officer of TrimTabs Investment Research, Inc., an independent investment research firm based in Sausalito, CA that specializes in publishing detailed daily coverage of stock market liquidity He is is interviewed regularly on CNBC and Bloomberg TV and is quoted frequently in the financial media, including Barron's Magazine, the Wall Street Journal, Forbes, and Investor's Business Daily. He is the author of TrimTabs Investing: Using Liquidity Theory to Beat the Stock Market (John Wiley & Sons, 2005). He holds a BA from Brooklyn College and an MBA from Harvard Business School.

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