shares of motorola solutions inc msi slumped 048 to 29316 tuesday on what proved to be an allaround poor trading session for the stock market with the sp 500 index spx falling 116 to 411958 and dow jones industrial average djia falling 108 to 3368453 motorola solutions inc closed 194 short of its 52week high 29510 which the company reached on may 1st