Here’s what you need to know: A protest on Thursday at Robinhood’s headquarters in Menlo Park, Calif., after the stock-trading app said it would limit trades of GameStop.Credit…Ian C. Bates for The New York TimesSeveral retail stockbrokers, including Robinhood, said they would allow trades of GameStop and other volatile companies after restricting customers’ ability to purchase securities earlier in the day.“Starting tomorrow, we plan to allow limited buys of these securities,” Robinhood, a popular trading app, said. “We’ll continue to monitor the situation and may make adjustments as needed.”Robinhood, which has attracted millions …
