That is true! Most brokers don't allow investors to do it!, would be under the shortable stock list! Brokers would be liable if the investor runs out of money, they haft to cover and it is steep if stock takes off like a rocket!

http://www.interactivebrokers.com/en/trading/...&asset =



where?

PNBK	USD	Patriot National Bancorp Inc	Check Availability
PNC	USD	PNC Financial Services Group Inc	Check Availability
PNC PRP	USD	PNC Financial Services Group Inc	Check Availability
PNC PRQ	USD	PNC Financial Services Group Inc	Check Availability
PNCKF	USD	Pure Nickel Inc	Check Availability
PNDMF	USD	PNI Digital Media Inc