Quote from exQQQQseme:
I will tell you that I short stocks using online trading through Schwab. They are always responsive when I have a question or a problem.
Thanks for your reply QQ. Ironically, Schwab was the company that "could not" borrow the stock, which was USO. A few minutes later I shorted a few hundred shares with no problem in my newly-opened IB account. I thought maybe it was a mistake and they would blow me out of it overnight, but I've got the IB screen open in front of me and I'm still short it.
I cannot imagine how Schwab cannot internally borrow this stock. I guess the lesson is that it's all about individual company policies, rather than SEC dictates or market realities.
Schwab is a nice, user-friendly company. IB - from my 1.2-day experience with them - is not so warm and fuzzy. Their software is downright hostile. But they seem to have a lot of powerful capabilities - as does their software, if you can wrestle it to the ground first.