Trading Session Report for 21Vianet Group Inc (VNET)Stock Daily ReviewTracking current trading session activity on shares of 21Vianet Group Inc (VNET), we can see that the stock price recently hit 5.51. At the open, shares were trading at 5.17. Since the start of the session, the stock has topped out with a high of 5.59 ...21Vianet Group, Inc.