# Stock Market Seasonality Patterns Page: https://tosindicators.com/research/stock-market-seasonality-patterns-monthly-trading-guide Video: https://www.youtube.com/watch?v=fPiopAGpLNM Section: Research Access: free Updated: 2026-02-26 We use the free seasonal analysis indicator with 20 years of data to identify the strongest and weakest months across the S&P 500, Dow, and NASDAQ. The same three months outperform across all three indexes: April, July, and November, each closing green roughly 80% of the time. The weakest months are June and September, with September averaging -1.06% in the S&P. This video builds a 2024 seasonality cheat sheet from the data. 80%S&P Up Rate: April, July, November 2.29%S&P Avg November Gain -1.06%S&P Avg September Loss 20 yrsData Lookback Period ## Building a 2024 Seasonality Cheat Sheet In the companion video, we use the free seasonal analysis indicator to build a profile of what to expect in 2024 across the three major index markets. The indicator is available for free at [tosindicators.com](https://tosindicators.com/indicators/) and uses 20 years of historical data to show how often each month closes above where it opened and what the average gain or loss is for each month. ## S&P 500: Best and Worst Months On the S&P 500, three months stand out as consistently strong: April, July, and November. All three close green 80% of the time over 20 years of data. The average gains are 2.11% for April, 2.27% for July, and 2.29% for November. Nothing else in the S&P comes close to those three months in terms of consistency and magnitude. On the weak side, June and September are the standouts. September is the weakest month overall at -1.06% average. June is also negative, with only 40% of the time closing above where the month opened. Those are the two months where the data says to be cautious in the S&P. ## Dow Jones: Same Strong Months, Different Weak Months The Dow (using DIA) shows the same three strongest months: April, July, and November. April is slightly stronger in the Dow at 85% green rate, but July drops to 69.7% and November to 74.3%. The same relative outperformance is there compared to the other months, just with slightly less consistency than the S&P. The weak months for the Dow are a bit different: January, June, and August. The weakness arrives a little sooner in the Dow (August vs. September in the S&P), and January gets added. June is the one weak month that overlaps across both the S&P and the Dow. ## NASDAQ (QQQ): Confirming the Pattern The QQQ shows the same three best months: April (2.02%), July (3.29%, the highest of any month across all three indexes), and November (2.19%). The frequency of green months is similar to the Dow. The weak months for the NASDAQ are June (-0.8%), September (-0.6%), and December. June and September overlap with the S&P, while December is unique to the NASDAQ. The Dow had August as a weak month instead. **Key Takeaway:** Across all three major indexes, April, July, and November are consistently the strongest months. June and September are the weak months to watch. June was the one constant weak month across all three indexes. September was weak in both the S&P and NASDAQ. ## The Seasonality Cheat Sheet Taking all of the data across the S&P, Dow, and NASDAQ, the simplified cheat sheet is: **Strong months:** April, July, November. These are the months where all three index markets historically find buyers. 80% green rate in the S&P with average gains above 2%. **Weak months:** June and September. June was the one constant across all three indexes. September stands out as one of the weakest months, especially in the S&P (-1.06%) and NASDAQ. These are the months to be cautious or reduce exposure. You can run this same analysis on any market you trade using the free seasonal analysis indicator. Load it on your charts, adjust the lookback period, and build your own seasonality profile for the instruments you follow. [Seasonal Analysis Indicator (Free)](https://tosindicators.com/indicators/)[Volatility Box](https://tosindicators.com/volatility-box)[Volatility Box for Stocks](https://tosindicators.com/volatility-box/stocks)[ThinkOrSwim Indicators](https://tosindicators.com/indicators/) ## Frequently Asked Questions ### What are the best months for the stock market? April, July, and November are the strongest months across the S&P 500, Dow, and NASDAQ based on 20 years of data. All three close green 80% of the time in the S&P with average gains above 2%. ### What are the worst months for the stock market? June and September are the weakest months. September averages -1.06% in the S&P, and June is negative with only 40% green rate. June was the one weak month consistent across all three major indexes. ### Do the same months perform well across all major indexes? Yes. April, July, and November are the top three months in the S&P, Dow, and NASDAQ. The weak months differ slightly: September stands out in the S&P and NASDAQ, while the Dow has August as a weak month instead. ### How much data does this analysis use? 20 years of historical data through the free seasonal analysis indicator, which shows the percentage of time each month closes above its open and the average gain or loss for each month. ### Where can I download the seasonal analysis indicator? The indicator is free for everyone at tosindicators.com/indicators. Load it on any chart in ThinkOrSwim to see month-by-month historical performance. ## Questions ### What are the best months for the stock market? April, July, and November across S&P, Dow, and NASDAQ. All three close green 80% of the time in the S&P with average gains above 2%. ### What are the worst months for the stock market? June and September. September averages -1.06% in the S&P. June was the one weak month consistent across all three indexes. ### Do the same months perform well across all major indexes? Yes. April, July, November are top three in S&P, Dow, and NASDAQ. Weak months differ slightly: S&P/NASDAQ have September, Dow has August. ### How much data does this analysis use? 20 years of historical data via the free seasonal analysis indicator on ThinkOrSwim. ### Where can I download the seasonal analysis indicator? Free for everyone at tosindicators.com/indicators. Works on any ThinkOrSwim chart. ### How do you combine stock market seasonality with technical analysis for better trades? The most effective approach uses three confirmation layers. First, identify the seasonal bias for the current month (bullish, bearish, or neutral) using at least 20 years of historical data. Second, locate key support and resistance levels using tools like the Volatility Box. Third, wait for a momentum trigger such as a TTM Squeeze that fires in the direction of the seasonal trend at a VB level. Only take trades where all three layers align. This triple-confirmation method filters out low-probability setups and significantly improves win rates compared to using any single method alone. ## Related - [Seasonal Analysis](https://tosindicators.com/indicators/seasonal-analysis) - [Call Walls and Put Walls Explained: What They Are and How to Read Them](https://tosindicators.com/research/call-walls-and-put-walls-explained) - [Best ThinkorSwim Indicators: 15 Custom Studies Every Trader Needs](https://tosindicators.com/research/best-thinkorswim-indicators-15-custom-studies-every-trader-needs) - [Trend Shift Scanner: Catch Reversals at the Inflection Point](https://tosindicators.com/research/trend-shift-scanner) - [ES Futures Trading Strategy: Volatility Levels, ORB, and ATR-Based Entries](https://tosindicators.com/research/es-futures-trading-strategy-volatility-levels-orb-atr-based-entries) - [Best Volume Indicators for ThinkorSwim: Relative Volume, VWAP, and OBV](https://tosindicators.com/research/best-volume-indicators-thinkorswim-relative-volume-vwap-obv)