shares of medtronic plc mdt shed 023 to 8081 wednesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 041 to 409195 and dow jones industrial average djia falling 011 to 3364650 medtronic plc closed 3350 below its 52week high 11431 which the company achieved on april 21st the stock demonstrated a mixed performance when compared to some of its competitors wednesday as johnson  johnson jnj fell 021 to 16392 danaher corp dhr rose