Small-cap premarket losers include SXTC, MDCX, VCIG, BIYA, MI, TOPP

TradeXchange highlights small-cap negative movers in the premarket session: SXTC (-29%), MDCX (-24%), VCIG (-18%), BIYA (-16%), MI (-16%) and TOPP (-15%). The note also cites comments on unusual trading activity and says MDCX will effect a fifty-to-one consolidation.