shares of chubb ltd cb sank 087 to 20877 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 200 to 399734 and dow jones industrial average djia falling 206 to 3312959 chubb ltd closed 2260 short of its 52week high 23137 which the company achieved on january 27th trading volume 16 m remained 172646 below its 50day average volume of 18 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