Present market instabilities have prompted great interest on the characteristics of specific portfolios such as minimum variance and equally- weighted risk contribution portfolios as these portfolios do not rely on the estimate of expected returns. Indeed, in turmoil periods traditional market...

This note presents the Blender, a concept that was developed at Unigestion by the Quantitative Research Hedge Fund Team. In the context of portfolio optimization we propose Blended portfolios as an alternative to efficient portfolios.Albeit Blended portfolios are sub-optimal in the mean-variance...