Margin Requirement Ratios
Margin requirement ratios define the minimum amount of collateral that a trader must hold relative to the total value of their position to maintain it. These ratios are categorized into initial margin, which is required to open a position, and maintenance margin, which is the minimum level to keep the position open.
The gap between these two ratios provides a buffer against market volatility and price fluctuations. Regulators and protocol designers set these ratios based on the asset's volatility, liquidity, and systemic importance.
Higher ratios act as a safeguard against market contagion but reduce capital efficiency for the trader. Conversely, lower ratios allow for higher leverage but increase the frequency and severity of liquidations.
Traders must analyze these ratios to understand their effective leverage and the proximity of their positions to the liquidation threshold. These metrics are fundamental to the physics of margin engines and the overall stability of derivative markets.
They dictate the structural boundaries within which market participants must operate.