S&P 500 under finished presidential terms since 1929: median +11.5% a year under Democratic presidents and +7.2% a year under Republican presidents
Democratic: 14 finished terms, from -12.5% to +33.3% a year (45.8 points wide) · Republican: 12 finished terms, from -30.8% to +14.3% a year (45.2 points wide) · The party medians are 4.2 points apart · S&P 500 closes through 6 Nov · price only, no dividends · the term under way is not counted
Domestic · Presidents and the market · S&P Dow Jones Indices (S&P 500 daily closes); Library of Congress (presidents' terms) · 5 Nov 2026