2026 Q4
October 1st 2026
Our quarterly S&P 500 forecast for 2026 Q4 (average price returns) is a 2.4 percent growth over the third quarter of 2026. Our monthly forecast for October is also higher than September’s average.
Volatility concerning frequent changes in tariff rates and timings, and geopolitical conflicts, cannot be captured in a forecast model. Thus, any uncertainty concerning these issues makes the 95 % confidence interval around the point forecast rather wide.
