All these posts are really surprising to me. Stocks below $5 are not marginable, if they are not marginable how could you possibly short them. I read that SEC post and it does make it sound like you can, but I still don't think any real firm would allow it. Maybe you could do it in a cash account, instead of a margin account. However, I have never had a broker that allowed you to short in a cash account. If someone has a broker that allows it, please tell me which firm. I would be curious to call them and see if they admit you can do it over the phone. I doubt they would.