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. Under the new model, the portfolio’s reported risk fell by roughly half. Months later, the trades that became https://quantitative-trading-rese84951.ivasdesign.com/64941922/who-measures-the-measurer-what-institutions-know-about-algorithmic-trading-risk-management