shares of glencore plc glen inched down 028 to £531 friday on what proved to be an allaround grim trading session for the stock market with the ftse 100 index ukx falling 127 to 733212 glencore plc closed 4070 pence short of its 52week high £572 which the company achieved on december 5 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