JPMorgan Gives Democratic Sweep 66% Odds; S&P 500 Best Case Is GOP Hold

JPMorgan’s four-outcome analysis of the 2026 midterms gives a Democratic sweep a 66% probability, while its most favorable S&P 500 outlook depends on Republicans retaining both chambers. The bank pairs each possible congressional lineup with a probability and an S&P 500 range. Its estimates reflect different potential effects from regulation, federal spending and long-term Treasury yields. JPMorgan assigns a 7% probability to Republicans keeping control of both chambers and projects a 1% to 1.25% S&P 500 gain in that case. The scenario carries less immediate risk of new congressional regulation and limited added technology policy pressure.

Source: TokenPost