With short selling you have to realize that to short a stock, you need to borrow the shares. So this is only possible if the broker has the shares available to borrow.
This is typically not a problem with large, liquid stocks but it's going to be much harder with stocks under $1 because these are probably micro cap stocks or penny stocks. That's difficult no matter who the broker is, so your friend might want to start to think about the feasibility of shorting these stocks to begin with.
I've been relatively happy with Interactive Brokers. I frequently short stocks there, and they even have a nice web-based tool where you can inquire whether a stock is available to short (it also tells you the interest rate, as you have to pay to borrow shares... this is a cost that is often overlooked by short sellers). I have never had problems shorting large liquid stocks, but as I said, penny stocks are a different matter.
I suggest that your friend picks a few of the stocks he's thinking of, and calls up brokerages asking them
a) if the stock is available to short
b) what is the cost of borrowing the stock short
This is typically not a problem with large, liquid stocks but it's going to be much harder with stocks under $1 because these are probably micro cap stocks or penny stocks. That's difficult no matter who the broker is, so your friend might want to start to think about the feasibility of shorting these stocks to begin with.
I've been relatively happy with Interactive Brokers. I frequently short stocks there, and they even have a nice web-based tool where you can inquire whether a stock is available to short (it also tells you the interest rate, as you have to pay to borrow shares... this is a cost that is often overlooked by short sellers). I have never had problems shorting large liquid stocks, but as I said, penny stocks are a different matter.
I suggest that your friend picks a few of the stocks he's thinking of, and calls up brokerages asking them
a) if the stock is available to short
b) what is the cost of borrowing the stock short