Lesson 1: No One Is Very Good at Consistently Getting Market Forecasts Right
The only value in market strategist forecasts is that they show that a wide dispersion of outcomes is possible. The S&P 500 ended 2022 at 3,839.50. The forecasts of 23 analysts from leading investment firms for year-end 2023 ranged from as low as 3,650 (down 5%) to as high as 4,750 (up 24%). The average forecast was for the S&P 500 to end the year at 4,080 (up 6%). It closed the year up 26.4%.
The chart above from Avantis shows that not only is such a wide dispersion of potential outcomes likely, but the median forecast is typically wrong by a wide margin.
The lesson is that investors are best served by following Warren Buffett’s advice on guru forecasts: “We have long felt that the only value of stock forecasters is to make fortunetellers look good. Even now, Charlie [Munger] and I continue to believe that short-term market forecasts are poison and should be kept locked up in a safe place, away from children and also from grown-ups who behave in the market like children.”
Why It Matters: The lesson is an especially important one because investors, like all humans, are subject to confirmation bias. Thus, when we hear a forecast that confirms our own beliefs or concerns, we are more likely to act on it than if we hear a contrary opinion.