gsk plc gsk shares inched up 031 to £1430 tuesday on what proved to be an allaround poor trading session for the stock market with the ftse 100 index ukx falling 010 to 776295 gsk plc closed £1324 below its 52week high £2754 which the company reached on june 14 trading volume 31 m remained 54 million below its 50day average volume of 85 m editors note this story was autogenerated by automated insights an automation technology provider using data from dow jones and factset see our market data terms of use