smith  nephew plc sn shares rose 422 to £1211 tuesday on what proved to be an allaround poor trading session for the stock market with the ftse 100 index ukx falling 046 to 797775 smith  nephew plc closed £134 below its 52week high £1344 which the company reached on february 28 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