 Guggenheim Taxabl Mncpl Mngd Drtn Trst NYSE:GBAB was up 5.8 on Tuesday . The stock traded as high as 20.87 and last traded at 20.43, approximately 191,000 shares changed hands during mid-day trading. An increase of 84 from the average daily volume of 103,656 shares. The stock had previously closed at 19.31. The firm has ... 