Robinhood Markets Inc. (NASDAQ:HOOD) has launched its new desktop trading platform, Robinhood Legend, at the HOOD Summit 2024, signaling a significant shift from its mobile-first approach to a more comprehensive wealth management platform. What Happened: Chief Brokerage Officer Steve Quirk emphasized the need for this transition, stating, “About 50% of all retail trading happens on a mobile device and about 50% of it happens on a desktop. We, up to this point, had only been competing on the mobile front. Now we have an alternative.” Quirk said this in an appearance on CNBCOvertime. Robinhood L…