shares of best buy co inc bby slipped 193 to 9252 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 126 to 452512 and dow jones industrial average djia falling 080 to 3464118 best buy co inc closed 4945 short of its 52week high 14197 which the company reached on november 22nd the stock demonstrated a mixed performance when compared to some of its competitors tuesday as apple inc aapl fell 189 to 17506 amazoncom inc