According to The Block, sources said that Sina Nader, the head of crypto operations at Robinhood, a San Francisco-based stock and crypto trading platform, has left. Currently, Robinhood is hiring an encryption operations manager. Chain Wen previously reported that in the middle of this month, Robinhood raised another US$320 million with a valuation of US$8.6 billion, and the F round of financing raised a total of US$600 million. Chain Wen noted that Robinhood initially launched its cryptocurrency trading service in February 2018. Sina Nader joined Robinhood at the end of 2019 as the head of the company’s encryption business.