2026 Q3- 2026 Q4
September 1st 2026
Our quarterly S&P 500 forecast for 2026 Q3 (average price returns) is a 5.4 percent growth over the second quarter of 2026. Our forecast for Q4 is 1.9 percent higher than Q3. Our monthly forecast for September is also higher than August’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.
