margin-operations

Regulation T initial margin and FINRA or exchange maintenance margin requirements are calculated by applying specific percentage thresholds to the market value of purchased securities. This process determines the minimum equity needed to open and hold leveraged positions in brokerage and advisory accounts.

A margin call occurs when account equity falls below the required maintenance margin. If unresolved through depositing funds or securities, the forced liquidation process automatically sells assets to restore the account to the minimum equity level.

Portfolio margin methodology evaluates the overall risk of a hedged portfolio rather than applying fixed percentages to individual securities. This approach calculates requirements based on potential market moves, often resulting in lower margin needs for balanced, offsetting positions.

Special Memorandum Account (SMA) tracks the unused margin buying power in a brokerage account. Reg T buying power is calculated by doubling the SMA balance, allowing investors to determine how many additional leveraged assets they can purchase.

Securities-backed lines of credit (SBLOC) function as non-purpose loans using portfolio assets as collateral. Margin risk management ensures sufficient equity is maintained to prevent forced liquidation if the pledged securities decline in value.

Margin calls in advisory accounts trigger when equity drops below exchange or FINRA maintenance margin requirements. Clients can resolve these calls by depositing cash, adding securities, or liquidating specific assets to restore the required balance.