Margin call

PrepNuggets

If the percentage of equity in a margin account falls below the maintenance margin requirement, the investor will receive a margin call, a request to bring the equity percentage in the account back up to the maintenance margin percentage. An investor can satisfy this request by depositing additional funds or depositing other unmargined securities that will bring the equity percentage up to the minimum requirement. If the investor does not meet the margin call, the broker must sell the position.

Margin call price = P0 × 1Initial Margin1Maintenance Margin