RadioShack (RSH) stock is tumbling over Tuesday's trading session. Earlier in the day, the company announced its executive vice president Troy Risch, responsible for store operations, had resigned. Until a permanent replacement is found, Risch's responsibilities will be assumed by other members of management.
Unit Corporation, RadioShack, Wal-Mart Stores, Euronet Worldwide and MoneyGram International highlighted as Zacks Bull and Bear of the DayYahoo 04/22 07:32 ET
Bear of the Day: RadioShack (RSH) - Bear of the Day
RadioShack suffered a serious setback in its turnaround efforts.