experian plc expn shares dropped 371 to £2852 wednesday on what proved to be an allaround dismal trading session for the stock market with the ftse 100 index ukx falling 016 to 774487 experian plc closed £370 below its 52week high £3222 which the company achieved on february 2 trading volume 998985 remained 461035 below its 50day average volume of 15 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