For quite some time now both Yahoo and this forum has had PTSC with a very large spread between the bid & ask. Checking them both, they have the bid at 5 cents and the ask at 16 cents. I don't check the price anywhere else but a broker once told me to stay away from such large discrepancies. He acted like it was the first rule of trading. I just can't imagine someone buying a stock at 3 times the price ( for lack of a better term) of a safety net price. Even a whole penny from bid to ask at this quote seems like a stretch let alone an 11 cent spread that is now showing.

Long & Strong