In Early 2012, a portfolio inside JPMorgan Chase’s Chief Investment Office was breaching its risk limits. Then a new value-at-risk model was introduced, and the problem appeared to disappear. The new model cut the portfolio’s reported risk roughly in half. Months later, the trades that became known as the “London https://quantitativetradingresear17394.webdesign96.com/43092961/the-number-that-said-it-was-safe-institutional-lessons-in-algorithmic-trading-risk-management