Margin Offsetting
Margin offsetting is a risk management mechanism used in derivatives and cryptocurrency trading to reduce the total collateral requirement for a portfolio. When a trader holds multiple positions, some of which are correlated or inversely related, the losses in one position may be partially or fully covered by gains in another.
By recognizing these correlations, exchange clearing systems allow the trader to hold a smaller amount of total margin than if each position were margined in isolation. This practice optimizes capital efficiency, allowing traders to leverage their capital more effectively while maintaining safety for the exchange.
It is fundamental in reducing the systemic risk of over-collateralization and enhancing market liquidity. Effectively, it treats a portfolio as a single unit rather than a collection of independent risks.