March Stock Market Performance in Midterm Election Years | Jeff Hirsch

Beginning on March 2 (Mon) (Trading Day 1), the US stock market historically follows two distinct paths. Over the recent 21-year period (solid lines in the chart below), March tends to open positively with modest gains through March 4 (Wed) (TD 3) before weakness leads to a sharp dip around March 9 (Mon) (TD 6). While indices typically move higher from March 16 (Mon) (TD 11), the NASDAQ and S&P 500 usually lead this recovery into the final close on March 31 (Tue) (TD 22).

 

March generally finishes positive across all major indices.

  

In contrast, Midterm Election years since 1950 (dotted lines) show significantly greater historical strength, potentially as a rebound from a typically tepid February. This cycle produces a front-loaded rally where R2K small caps flip from laggards to leaders, often outpacing S&P 500, DJIA, and NASDAQ. Strength generally persists until the Spring Equinox, reaching a seasonal peak on March 20 (Fri) (TD 15). After this point, indices tend to lose momentum and close out the month with choppy trading. Despite these differing mid-month trajectories, March has a 64% win rate, generally finishing positive across all indices.

 

Reference:

Jeffrey A. Hirsch (February 25, 2026) - March’s Seasonal Pattern – Early Strength Persists Longer in Midterm Years. 

 

 S&P 500 Midterm Election Year Seasonal Pattern, 1949-2024.

 

Detrended S&P 500 Seasonality.

 

S&P 500 First 10 Days and Last 10 Days of the Month (1928-2024).

 

 S&P 500's Average Daily Return & Percent of Days Positive (1928-2024).

  

See also:

Jeffrey A. Hirsch (December 29, 2025) - 2026 Midterm Election Year Seasonal Patterns of US Indices. 

Larry Williams (February 19, 2026) - 2026 Market Update: Crude, NatGas, Metals, Stocks, Cocoa.

TPR (February 22, 2026) - S&P 500 Hurst Analysis: Projection into Mid-March 20-Week Cycle Low. 

Nicholas D. Savino (March 1, 2026) - March 2026 S&P 500 Forecast.