SRL for [groped]: More stocks opened over the ensuing half hour , as the 49 Big Board specialist firms in charge of keeping the market orderly [groped] to find buy orders from major brokerage firms to match the selling flood .
ARG-0: the 49 Big Board specialist firms in charge of keeping the market orderly | ARG-M-PRP: to find buy orders from major brokerage firms to match the selling flood