SRL for [answer]: Another proposed reform is to have program traders [answer] to an `` uptick rule '' a reform instituted after the Great Crash of 1929 that protects against stocks being relentlessly beaten downward by those seeking to profit from lower prices , namely short sellers .
ARG-0: program traders | ARG-1: to an `` uptick rule '' a reform instituted after the Great Crash of 1929 that protects against stocks being relentlessly beaten downward by those seeking to profit from lower prices , namely short sellers