hsbc holdings plc uk reg hsba shares slid 175 to £600 tuesday on what proved to be an allaround rough trading session for the stock market with the ftse 100 index ukx falling 138 to 752207 hsbc holdings plc uk reg closed 5370 pence below its 52week high £654 which the company reached on february 21 trading volume 144 m remained 186 million below its 50day average volume of 330 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