shares of american international group inc aig shed 328 to 5830 wednesday on what proved to be an allaround rough trading session for the stock market with the sp 500 index spx falling 404 to 392368 and dow jones industrial average djia falling 357 to 3149007 the stocks fall snapped a threeday winning streak american international group inc closed 743 below its 52week high 6573 which the company reached on april 21st the stock demonstrated a mixed performance when compared to some of its competitors wednesday as prudential plc adr puk fell 478 to 2448 arch capital group ltd acgl fell 226 to 4582 and american financial group inc afg fell 247 to 14249 trading volume 56 m eclipsed its 50day average volume of 47 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