: Specifically used for securities with a 100% margin requirement , meaning you cannot borrow against them.
: While it is used for "non-marginable" assets, using this balance in a margin account can still trigger a margin loan. This happens if you leverage the loan value of other holdings to buy these assets, resulting in margin interest charges. what is non margin buying power
: The total amount available to buy marginable assets (like standard blue-chip stocks), which usually includes up to 2:1 leverage. : Specifically used for securities with a 100%