Recent content by enochian

This guy got LOWER buying power with portfolio margin:

What if you are doing extremely mild margin with just Index ETFs? I would assume Reg-T would be better.

"Because the maximum time limit for meeting a margin deficiency is shorter than in a standard margin account, there is increased risk that a client’s portfolio margin account will be liquidated involuntarily, possibly causing losses to the client."

TDA has a third type of margin account besides regular and portfolio: https://tlc.thinkorswim.com/center/howToTos/thinkManual/Miscellaneous/RBC-Margin Does anyone know the difference between this and portfolio?