shares of national grid plc ng inched down 043 to £1031 monday on what proved to be an allaround positive trading session for the stock market with the ftse 100 index ukx rising 018 to 778467 national grid plc closed £241 short of its 52week high £1271 which the company reached on may 18 trading volume 32 m remained 43 million below its 50day average volume of 75 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