One of the most reliable patterns I’ve observed in markets appears in years ending in the number five. It is simple: take the January high of the Dow Jones Industrial Average. If the market records two consecutive monthly closes above that high, history shows a strong rally often follows into early December or even year-end. This is a purely mechanical setup; without the two closes, the pattern remains dormant.
Looking back, the results are striking. In 1995, the trigger led to a more than twenty percent advance. 1985 produced roughly fifteen percent, 1975 seven to ten percent, and even 1965, after a brief pullback, ended higher by about five percent. Earlier examples include 1955 with fifteen percent, and 1935 and 1945 each with nearly thirty percent rallies. Not every “five” year triggers the setup—as in 2005 and 2015—but when it does, the outcome has consistently favored the bulls.
Detrended Weekly Seasonal Composite Future chart for the S&P 500 from 1942 to 2024.
Looking back, the results are striking. In 1995, the trigger led to a more than twenty percent advance. 1985 produced roughly fifteen percent, 1975 seven to ten percent, and even 1965, after a brief pullback, ended higher by about five percent. Earlier examples include 1955 with fifteen percent, and 1935 and 1945 each with nearly thirty percent rallies. Not every “five” year triggers the setup—as in 2005 and 2015—but when it does, the outcome has consistently favored the bulls.
Dow Jones (monthly bars), 2025.
» If the market records two consecutive monthly closes above the January high, history shows a strong rally often follows into year-end. This is a purely mechanical setup; without the two closes, the pattern remains dormant. «
In 2025, we already have one monthly close above the January high [¿?]. If October confirms with a second [¿? would be the third], the trigger will be set. With only November and December remaining, history suggests that these final months could deliver substantial gains, just as in previous “five” years.
but when it does, the outcome has often been significant.
The pattern is neither perfect nor guaranteed, but the Dow’s record demonstrates that when it occurs, the probabilities strongly favor a significant year-end advance.
Reference:
Jake Bernstein (October 2, 2025) - Unlocking the Years-Ending-in-5 Market Signal. (video)
See also:
Jake Bernstein (October 2, 2025) - Unlocking the Years-Ending-in-5 Market Signal. (video)
Detrended Weekly Seasonal Composite for the S&P 500 from 2001 to 2025.
See also:



%20-%20Forecasting%20the%20NYSE.gif)






%20Seasonality%20(2000-2025).png)

