Define ‘Variation Margin’ and Its Relationship to ‘Initial Margin’.
Initial margin is the collateral posted upfront to cover potential future losses over a specific liquidation period. Variation margin (VM) is the daily or intraday transfer of funds between counterparties to cover losses or gains resulting from the daily marking-to-market of the position.
VM ensures the exposure never exceeds the initial margin, maintaining the collateral level to reflect the current market value of the contract.