Great question. I am not an expert in this area, so don’t take this as the correct answer I think the way it works is your broker lends out your stock (at a p

Great question. I am not an expert in this area, so don’t take this as the correct answer I think the way it works is your broker lends out your stock (at a profit) to short without any explicit consent from you. It’s your brokers responsibility to make sure that you have access to your stock when you need them.