Biogen Inc BIIB Stages a Rebound as Shares Climb 226 in Active Trading RiverNorth Flexible Municipal Income Fund RFM Holds Steady Near 1437 Amid Flat Trading Session BTCS Inc BTCS Slips 35 Key Support Levels in Focus as Bearish Pressure Persists WidePoint WYY Surges 856 as Volume Picks Up Key Levels to Watch