A marginable position is considered concentrated if it makes up 25% or more of the marginable securities of your account. There are special maintenance requirements in cases where 25% or more of a total portfolio is concentrated into a single margin position when accounts have a debit balance above $100,000.
- When there is no concentration in a stock position it requires 30% of the notional value as a maintenance requirement.
- When the stock is 25% or more of your total marginable stock position and the account has a debit balance above $100,000, it requires a higher value as a maintenance requirement:
*Some securities have special maintenance requirements that require you to have a higher percentage of equity in your account in order to hold them on margin.