 On Monday, the courts sent the case back to the lower courts to take a second look, but the ruling says the social media platforms are protected by the First Amendment. That suggests the Texas law is not valid. And Robinhood is purchasing an artificial intelligence research platform. The investment app announced Monday that it's acquired Pluto Capital Inc. Robinhood says the move will give users AI-powered tools like data analysis and personalized investment strategies. It's unclear when Pluto's software will be integrated.