This is interesting, can individual brokerages refuse to trade individual securities or to only allow them to be sold. Unless the SEC authorized these actions I think it arguably makes the brokerages liable for losses and is arguably market manipulation. Transferring securities positions between brokers is relatively costly and time consuming - takes at least a day and there is usually a $40-70 fee - so is a temporar…
what losses can you prove? It's not like you were blocked from selling at the high, the high was blocked from being reached. And this applies whether you have a rh account or not.
Edit: Class action lawsuit was just filed for loss of opportunity - https://news.ycombinator.com/item?id=25945052