“I Sell My Winners Too Early and Hold Losers.”

How behavioral analytics can help active investors from repeatedly making the same mistakes.

Julie Segal November 8, 2019

David Paul Morris/Bloomberg

Thirty years of research in behavioral science has taught us how human brains are wired and how emotions drive decisions. Still, active portfolio managers — even though they are in a vicious war with index funds — are frittering away their excess returns by making

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