Doesn't matter. Raise a FINRA complaint now. You don't need to be an expert in the rules and try to determine on your own whether it's a violation of FINRA's r

Doesn't matter. Raise a FINRA complaint now. You don't need to be an expert in the rules and try to determine on your own whether it's a violation of FINRA's rules. FINRA will do that for you. Even if Robinhood technically disclosed that they might do it, violating a customer's express orders without documenting appropriate reasons for doing so is generally a violation of FINRA's rules. Brokers have lost their licenses for shenanigans like that.