Risk-based portfolio strategies - such as Minimum Variance, Maximum Diversification, Equally-Weighted and Risk Parity, to name the most famous - have become increasingly popular in the investment industry due to their return-agnostic and risk management features. In this paper, we show that...

Risk-based investment solutions are seen as incorporating no views. In this article, we propose an analytical framework that allows the introduction of explicit active views on expected asset returns in risk-based solutions. Starting from a Black-Litterman approach, we derive closed-form...