3 ms·Given that prop trading has been severely curtailed at investment banks, yes.by workthrowaway27 9y agoGiven that prop trading has been severely curtailed at investment banks, yes.zjaffee 9y agoNot just curtailed, they aren't allowed to participate in prop trading at all as per the dodd frank legislation.qaq 9y agoJPM makes about 1/5th of profit from "trading" and of that I seriously doubt market making is much of a contributor.