That is news to me! I do not have a Robinhood account. My account is with Think it Swim Canada. NOT as good as Think or Sim in the US but close. Never before heard about a brokerage where " they are only buyers if calls". I believe all brokerages make two way markets or facilitate market makers and retail clients to engage in two way markets. In North America there is no competency test, not even sure how that could be done, although if done correctly, I would applaud it. Why require people to take a driving test but permit them to do major financial damage to themselves and their dependents? In Canada the test for opening an account is much lower than 100K, but what you can trade is limited to how much risk the position entails. To say it cruelly, you can do everything to lose everything you have, as long as you pay commission and stay far enough away from risking the brokerage to lose money. So everybody can do a BUY WRITE COVERED CALL, but not everybody can do the risk equivalent naked put sale, sometimes not even when cash secured!In a nomral trading account you need to show you are a competent trader and you need margin- some accounts need $100k. As I understand it with Robinhood as they are only buyers of calls, their losses are limited to their premiums paid. The effect of them buying calls en masse, however, is to ramp up a stock without needing to own the stock -and in a market that has all but outlawed a drop it's game on for these 'people' .