> If Robin Hood was allowing people to sell but not to buy, and most other Citadel involved brokerages were doing the same, who was able to purchase the massive

> If Robin Hood was allowing people to sell but not to buy, and most other Citadel involved brokerages were doing the same, who was able to purchase the massive volume of shares being sold? I think you answered yourself, but you may want to consider that RH is not the only trading platform out there.