Dime Bancorp is not being traded. DIMEQ is a litigation tracking warrant that used to have the symbol DIMEZ.
" In connection with Washington Mutual’s acquisition of Dime Bancorp, Inc., Washington Mutual assumed the obligations under Litigation Tracking Warrants that Dime had issued to holders of its common stock. As a result of Washington Mutual’s acquisition of Dime, the Litigation Tracking Warrants are now convertible into shares of Washington Mutual common stock upon receipt by Washington Mutual of any damages upon the final adjudication or settlement of Anchor Savings Bank FSB v. United States , litigation that Washington Mutual assumed upon the acquisition of Dime. Upon receipt by Washington Mutual of any final damages from this lawsuit, holders of Litigation Tracking Warrants will, in the aggregate, be entitled to receive shares of Washington Mutual common stock whose aggregate value will be based on the amount actually recovered in the lawsuit, if any, net of litigation costs and any taxes. "
Numbers don't lie, people do.