Connect the exposures.
A hedge in one venue may offset a position in another. A shared exposure graph makes that relationship visible before capital is allocated.
A hedge in one venue may offset a position in another. A shared exposure graph makes that relationship visible before capital is allocated.
Less collateral is only useful if the portfolio still survives its modeled tail losses. CVaR is the constraint that keeps the allocation honest.
Net the exposure, then assign the collateral. An exclusive pledge record prevents the same asset from securing two obligations.