Yeah, I saw your post with AAVG about this problem with Penson - it was brought up here a few weeks ago, but seemed to not be an issue. Many brokers clear through Penson, mine included (ChoiceTrade)...I don't really know anything about legalities of all this, but seems pretty ridiculous to just say, "Sorry folks, these are now your options."
Anybody else having issues with Penson? I haven't made any transactions in a while, and haven't really seen anybody else posting problems.