In midterm years, October is usually the best month for stocks, with gains 73.7% of the time

For those who rely on stock market trends, history reveals that midterm years, particularly October, witness the best stock performance. According to Carson Group's Ryan Detrick, since 1950, October has consistently delivered the highest returns among the months in midterm years, with the S&P 500 averaging a 3% gain and positive returns in 73.7% of the cases.

November follows in second place, seeing a 2.7% gain, with positive outcomes in 78.9% of the instances. October serves as the strongest month after September, which has experienced the weakest performance at -0.8%. This trend aligns with research from major Wall Street firms. UBS's examination of 19 midterm elections since 1950 revealed that S&P 500 returns averaged 6% from September to year-end, compared to 4% in non-midterm years.

From March, the average return stood at around 14%. Negative returns occurred only in 1978 due to high inflation, 2002 during the tech bubble burst, and 2018 amid trade wars and Federal Reserve rate hikes. UBS strategist Maxwell Grinacoff notes that markets tend to rally after September and October's median decline of -1.4%. JPMorgan's analysis indicates that the Q4 pattern should not be viewed in isolation, as markets rally as Election Day approaches due to reduced uncertainty.

However, fundamentals such as monetary policy, economic growth, labor markets, corporate profits, and valuations play a more significant role in determining future returns than the election calendar itself.