Why would a brokerage execute an order to sell to close a stock position that an account doesn't posses anymore? This seems like an issue with the brokerage executing faulty orders. Or is there a reason why an account holder would want to sell to close a stock position they don't possess?
Sale Not Long violations explained towards the bottom of the page.
[https://www.merrilledge.com/trade/violations](https://www.merrilledge.com/trade/violations)