How Midterm Elections Affect the Stock Market
Imagine if you knew an investment strategy where the historical odds are almost 100% in your favor! Well here’s how. Since 1942 there has been 18 midterm elections, not counting the one that just happened earlier this week. Every single time the S&P 500 has gone up after one year following each of those elections. The average stock market gain over the 12 month period following all 18 elections was 16%. If we only look at what happened after just 6 months following the midterm elections, once again 18 out of 18 times the S&P 500 rallied, and on average by 15%. Chart below for details. (source)
As we can see, the chart shows the percentage change of the stock market index after 3 months, 6 months, and 12 months following each midterm election. The only negative change is after the 3 month period following the 2002 midterm when the S&P 500 dropped 8.7% as shown in brackets. Every other time the stock market has gone up. This indicator has been very consistent because regardless of which party wins in the house or the senate the results of a midterm election adds certainty to the political landscape. And certainty gives confidence to the financial markets.