No, it means that Penson the clearing house won't handle the trade, all the big boys like Ameritrade, Fidelity and Etrade do because they own their own clearing house.
from Choice Trade's website... DTC Transfer DTC is a method of transferring fully paid-for positions from your account at another broker to ChoiceTrade. DTC transfers cannot be used if you are competely liquidating and closing your other account and typically take 2-3 business days to complete. ChoiceTrade's incoming DTC number is 0234PFSI.
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