सभी किताबें

पेशेवर

ऐप्स परिचय Coach लॉग इन पढ़ना शुरू करें

Quantitative Finance · शब्दावली

Breadth, fundamental law of active management क्या है?

अन्य नाम: breadth · fundamental law of active management

Definition 15.4 Research Craft: Predictors, Backtests, Measurement, Portfolios · अध्याय 15 — From Signal to Forecast

The breadth of a strategy is the number of independent forecasts it acts on per year. The fundamental law of active management (Grinold, 1989) states that the information ratio of the optimal portfolio built on forecasts with information coefficient IC\mathrm{IC} and breadth BR\mathrm{BR} is IR≈ICBR\mathrm{IR} \approx \mathrm{IC}\sqrt{\mathrm{BR}}.

अध्याय में पढ़ें →