The presidential election cycle stock market pattern is one of the most durable return patterns in market history. The data says the same thing every four years: midterm years are where the pain concentrates, and the year after the midterm is where the gains come.
The pattern is not a trading system. It is a base rate. When a guru tells you the midterms will cause a meltdown, the base rate says something different — the weakness is real, the recovery is faster than the fear, and the worst midterm years are historically the ones that set up the best returns.
The Four-Year Cycle
The Stock Trader’s Almanac has tracked the Dow Jones Industrial Average through the four-year cycle since 1896. The data on the S&P 500 starts in 1928 or 1950 depending on the metric, and the numbers line up across both timeframes.
Year 1 is the post-election year. A new administration is settling in. Policy is uncertain. The Dow averages about 3 percent.
Year 2 is the midterm year. Congressional elections happen in November. This is the weakest year of the cycle by a wide margin. The Dow averages about 4 percent. The S&P since 1950 averages 4.6 percent.
Year 3 is the pre-election year. This is the strongest year. The Dow averages 10.2 percent. The S&P since 1950 averages 17.2 percent.
Year 4 is the election year. The market is pricing in the next administration. The Dow averages about 6 percent.
The gap between Year 2 and Year 3 is over 12 percentage points. That is not a blip. That is the market responding to the resolution of political uncertainty, and it has been doing it for more than a century.
Why Midterm Years Are the Weakest
The midterm year is the only year in the cycle where the market is pricing a political outcome that has not happened yet. Voters are unhappy, the president’s party historically loses seats, and the policy agenda is in limbo until the new Congress takes office in January.
The numbers back up the intuition. Since 1950, the S&P 500 has finished positive in 11 of 19 midterm years. That is a 54 percent hit rate — the lowest of any year type. The negative rate is 45.8 percent. In a typical year, the S&P is positive about 70 percent of the time.
The drawdowns are worse too. The average intra-year peak-to-trough decline in a midterm year is roughly 17 percent, compared to roughly 14 percent for all years. Fourteen of the 19 midterm years since 1950 saw a decline of 9 percent or more from the high to the low.
When midterm years go wrong, they go seriously wrong. 1974 dropped 29.7 percent. 2002 dropped 23.4 percent. 2022 dropped 19.4 percent. Those are the three worst midterm years in the post-1950 data, and each one was followed by a double-digit recovery in the next year.
The October Bottom Zone
The timing of the midterm-year low is consistent enough to be useful. Most midterm bottoms cluster in the third quarter, with October as the most common month.
The October bottom zone includes 1966, 1974, 1990, 1998, 2002, 2014, and 2022. That is seven of the last 19 midterm years. The low arrived in the summer in a few others — 1962 in June, 1970 in May, 1982 in August, 2010 in July. The outlier is 2018, which bottomed on December 24.
The mechanism is simple. By late summer of the midterm year, the uncertainty is priced in. The election is approaching, the polls are visible, and the market knows what the likely outcome looks like. The selling exhausts itself, and the buyers start stepping in ahead of the November resolution.
The pattern is not a guarantee. But it is a reference point. When a midterm year is down 15 percent from the high and the calendar says October, the base rate says the selling is closer to the end than the beginning.
The Post-Midterm Rally
This is the strongest data point in the entire cycle. Since 1950, the S&P 500 has been higher 12 months after every single midterm election. Nineteen for nineteen. Every midterm year, without exception, has been followed by a positive 12-month period.
The average 12-month gain after a midterm is roughly 15 percent. The worst midterm years had the best follow-through. After 1974 dropped 29.7 percent, the next year returned 31.5 percent. After 2002 dropped 23.4 percent, the next year returned 26.4 percent. After 2022 dropped 19.4 percent, the next year returned 24.2 percent.
BlackRock’s data shows a similar pattern on a shorter timeframe. The average return in the six months following the midterm election is 14.1 percent. The market does not wait for the new Congress to be seated. The rally starts as soon as the uncertainty is resolved.
The 19-for-19 streak is not a law of physics. It is a base rate with a century of data behind it. The streak could break in any given cycle. But the investor who bets against the streak is betting against the strongest repeating pattern in modern market history.
The Coefficient of Variation
The coefficient of variation is a fancy way of saying the ratio of risk to return. It divides the standard deviation by the average return. A higher number means you are taking more randomness per unit of gain.
In midterm years, the coefficient of variation is roughly 6. That means the randomness in outcomes is about six times larger than the return you would expect to earn. The uncertainty is high and the compensation is low.
In pre-presidential years, the ratio drops to 1.3. The uncertainty is similar — the economy does not suddenly become predictable in Year 3 — but the compensation is much higher. The market is being paid for the same amount of risk.
This is the hidden cost of the midterm year. It is not just that returns are lower. It is that the risk-adjusted return is terrible. The investor who sits through the 17 percent drawdown and the 4.6 percent average return is getting paid a fraction of what the same uncertainty would deliver in the pre-election year.
What This Means for Midterm Predictions
The perma-bear publishers love midterm years. The data gives them a real pattern to point at — the 17 percent drawdowns, the 45 percent negative rate, the October bottom zone. They can run a promo saying the midterm year will cause a crash and the data supports the anxiety.
The part that does not fit the promo is the recovery. The 19-for-19 streak. The 15 percent average gain. The worst midterm years being the ones that set up the best returns. The coefficient of variation that says the risk is not being compensated in the moment but it gets paid in the next year.
Capital Group’s data tells the same story from a different angle. The average S&P return in midterm years since 1931 is 4.7 percent, about half the 9.5 percent for all other years. The midterm year is a drag. But the drag is followed by a catch-up, and the catch-up has never failed to arrive.
BlackRock tested what happens when investors try to time the cycle. The investor who moved to cash when their party was out of power saw their returns cut in half. A $100,000 investment grew to $214,000 for the timer, compared to $398,000 for the investor who stayed in the market. The cycle matters. Reacting to the cycle costs more than riding through it.
The presidential election cycle is a real pattern. The midterm year is genuinely weak. The drawdowns are genuinely larger. But the pattern does not end at the bottom. It ends with the recovery, and the recovery has been the most reliable part of the whole thing.
Flak Jacket Finance covers investment newsletters as an independent third party. We do not reveal paid picks, we do not trash the gurus or products we cover, and we do not sell the promos we cover.
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