How Does a Margin Call Differ in a Portfolio Margining System?

In a portfolio margining system, margin requirements are calculated based on the net risk of the entire portfolio, rather than on a contract-by-contract basis. A margin call is triggered when the overall portfolio risk exceeds the margin held.

This system often results in lower overall margin requirements for hedged portfolios.

How Do Margin Requirements Differ for Hedged Vs. Speculative Positions?
How Does the Portfolio Margining System Differ from Standard Margin Calculation?
How Do Market Makers Often Have Different Margin Requirements than Retail Traders?
What Is Portfolio Margining?
How Does Portfolio Margining Differ from Standard Margin Calculations?
How Does Portfolio Margining Differ from Standard Product Margining?
How Does Portfolio Margining Potentially Lower Overall Margin Requirements?
How Is the “Netting” of Risk Calculated in a Cross-Margining System?

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