At The start of 2012, a portfolio held by JPMorgan Chase’s Chief Investment Office kept breaching its risk limits. Then a new value-at-risk model was introduced, and the problem appeared to disappear. The new model roughly halved the portfolio’s reported risk. Months later, the trades that became known as the https://algorithmic-trading-risk41738.gigswiki.com/6783961/when_the_risk_model_is_the_risk_what_institutions_know_about_algorithmic_trading_risk_management