When a company that is going through bankruptcy proceedings is listed on the pink sheets or OTCBB, the letter "Q" is added to the end of the company's ticker symbol to differentiate it from other companies. For example, if a company with the ticker symbol ABC was placed on the OTCBB due to chapter 11, its new ticker symbol would be ABCQ.
Sometimes after a reorganization, a company will issue new stock that is considered different from the pre-reorganization stock. If this occurs, investors will need to know whether the company has given its shareholders the opportunity to exchange the old stock for new stock, because the old stock will usually be considered useless when the new stock is issued.
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