: Assets bought with this balance are considered non-marginable, meaning the broker requires you to put up 100% of the purchase price upfront.
: Your settled and available cash balance, net of any pending orders. non margin buying power
These assets generally carry higher volatility or lower liquidity, leading regulators and brokers to prohibit borrowing against them: : Assets bought with this balance are considered
: Using this balance can still create a margin loan. If you spend beyond your available cash by leveraging existing holdings, you will be charged margin interest on the borrowed amount. non margin buying power
Cash Account Balances and Descriptions - Fidelity Investments