Robinhood Markets (HOOD) soared 13% in after hours trading after a business affiliated with the owner of FTX crypto exchange reported a 7.6% stake in the company. Emergent Fidelity Technologies Ltd, a company whose sole owner is FTX founder Samuel Bankman-Fried reported owning 56 million share in Robinhood (NASDAQ:HOOD), according to a 13D filing Developing story ...