"Stock If the company's stock is publicly traded, a Chapter 11 filing generally causes it to be delisted from its primary stock exchange if listed on the New York Stock Exchange, the American Stock Exchange, or the NASDAQ. On the NASDAQ the identifying fifth letter "Q" at the end of a stock symbol indicates the company is in bankruptcy (formerly the "Q" was placed in front of the pre-existing stock symbol; a celebrated example was Penn Central, whose symbol was originally "PC" and became "QPC" after the company filed Chapter 11 in 1970). Many stocks that are delisted quickly resume listing as over-the-counter (OTC) stocks. In the overwhelming majority of cases, the Chapter 11 plan, when confirmed, terminates the shares of the company, rendering shares valueless."
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