In Early 2012, a portfolio inside JPMorgan Chase’s Chief Investment Office was breaching its risk limits. Then the bank adopted a new value-at-risk model, and the problem seemed to go away. The new model roughly halved the portfolio’s reported risk. Within months, the trades later known as the “London Whale” https://plazosullivanrochecapital62849.wikifordummies.com/9911968/who_measures_the_measurer_institutional_lessons_in_algorithmic_trading_risk_management