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5338金融与交易困难essaymedium

Date-Shifted Scenario Vectors

题目

Desk A is shocked on yesterday's historical scenario set, while Desk B is revalued on the same market moves but shifted forward by one calendar day because of a loader bug. The risk engine still adds the two P/L vectors and reports a portfolio historical VaR. What exactly is wrong with that number, and what is the correct fix?

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