Investment firms forecast of longterm US equity returns in 2021

BlackRock is most optimistic predicting 5% real returns. GMO most pessimistic at -5.7% (https://www.gmo.com/americas/research-library/waiting-for-the-last-dance/). Morningstart Investment Research predicts -.1% nominal returns on US equities

Kind of odd that they get such different estimates considering they probably all know each others data and methodologies.

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