As the question states, a company that has undergone a reverse stock split often gets the letter "D" attached to the end of its ticker symbol. This letter is used to designate a company that is undergoing a stock split of some sort (most often a reverse split), or some form of corporate reorganization. This letter is generally attached to the end of the ticker for approximately 20 trading days before it's removed.
Read more: How long does a stock that has done a reverse split keep the letter "D" at the end of its symbol?
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