Bridger Pennington explains how Citadel, which paid Robinhood for order flow during the GameStop surge, could front-run retail trades and manipulate prices with algorithms. Congress is working to address these practices.
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Before those buy orders go in, Citadel could front run and say, well, we're going to buy first. A few years ago, Robinhood, when there was the big GameStop AMC play and everyone was going crazy, Citadel was paying for order flow from Robinhood. And the theory is that what would happen is a lot of people like us are going to buy GameStop. We put our orders in and Citadel had a contract with Robinhood that said, well, before those orders, let's say there's a bunch of buy orders and the stock's getting bought up. Before those buy orders go in, Citadel could front-run and say, well, we're going to buy first and then we'll let all these people buy. And algorithmically, that'll make the stock price go up or go down and you can front-run trades. Again, that's why there's a lot of legislation out against this and trying to figure out how to stop this because it's a lot of market manipulation can happen at the high ends of Wall Street.