Pensons DTC list is a few pages long and I would encourage all to look at it. There are several on there!
I would encourage all to research Penson and compare them to the other clearing houses. There is a big difference that I will not go into; however, I would encourage those interested to read the NSS board, do some research and you will find a lot of details in regards to Penson.
I will say I am very thankful the situation started with MMTE that caused me to start looking elsewhere. I am very fortunate in that I am no longer with a brokerage firm that uses Penson.