Which Months Are Best (and Worst) for the Stocks You Trade?
The Seasonality tool shows historical monthly return patterns for any stock or ETF: the median and average return for every month, going back years.
Every trader has noticed it: certain months feel worse than others. Some names seem to slump every September. Others run every November. But is any of that real, or is it just selective memory?
Seasonality is one of the most discussed but least measured edges in trading. People talk about "sell in May" or "October volatility" without ever looking at the actual numbers for the specific names they trade.
Until now, getting real seasonality data for the names you actually trade meant downloading years of price data and building your own monthly return tables. Most traders never bother.
We built something better.
Monthly return breakdowns for any stock or ETF, plus a market-wide seasonality heatmap.
The median and average return for each month, January through December. Toggle between the two.
A bar chart of the typical month, green for positive and red for negative, so the seasonal pattern reads at a glance.
A heatmap with every year a row and every month a column, color-coded green to red with a per-year total.
A Median and Average toggle sits across both views, typical month versus mean-skewed performance.
The landing heatmap scans a whole watchlist at once, every name a row and every month a column.
Works on any stock or ETF, with major names built in and a custom box for anything else.
Pick a ticker and see which months have historically run hot and which ones dragged.
Switch to the year-by-month heatmap to see whether a month's edge held across years or came from a single outlier.
If your thesis needs a two or three month hold, check whether those months have historically worked for or against the name.
Open the landing heatmap to compare seasonality across names and pick the best seasonal profile for your window.
We welcome inquiries from traders, investors, institutions and affiliates
interested in learning more about our tools.