Jump Trading Group, one of the world’s largest high-frequency trading firms, will launch a unit that executes stock orders for individual investors, a business that has grown more lucrative for electronic traders as meme-stock mania has fueled a surge in US retail volumes.

Executives at Jump told The Wall Street Journal that the firm is setting up a so-called retail wholesaler business. Wholesalers fill buy and sell orders for the customers of online brokerages such as Robinhood Markets and TD Ameritrade.