GUIDE 17 / 67 · Historical research

Seasonality

A selected stock's calendar-month history, with year-by-month returns and average, median and positive-year summaries.

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What you can do here

This page studies one stock, not a demonstrated separate index-seasonality catalogue. Monthly returns use the previous month's last close and the selected month's last close. The current unfinished month is shown separately and excluded from the historical averages, helping avoid mixing a partial observation with completed months.

  • Choose the stock and years studied, then compare the same calendar month across years.
  • Keep the unfinished current month separate from completed-month averages.

A look inside Seasonality

Historical capture
Seasonality / terminal capture
The stock-search input is blank in the capture even though a calendar is rendered. Its company identity cannot be established from this image.

From numbers to understanding

  1. 01

    Years studied offers 3, 4, 5, 6, 7, 8, 10 or 12 years, subject to available history.

  2. 02

    The year×month heatmap exposes outliers hidden by an average.

  3. 03

    Month summaries include years, average, median, positive years, best and worst.

  4. 04

    Chart metric controls include Average, Median, Win rate and Years; month selection drills into its comparison.

UNIDENTIFIED STOCK DISPLAY

Terminal-displayed example

The 10 Nov 2026 capture showed 141 completed months, strongest month November +4.1% across 11 years, and November so far +15.2% excluded from averages. The stock identity is not visible, so these figures are not attributed to a company. They are terminal displays, not independently authenticated returns.

Historical figures transcribed from the captured terminal; the source screen’s date and scope apply. Not current market data.
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What this does not tell you

Calendar averages are descriptive, sensitive to sample and outliers, and not forecasts of the next month.

Analysis, not advice. Past performance does not predict future results. Examples are illustrative; prices, scores and counts may have changed.

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Terminal snapshot

Original image ↗

Zoom in, then scroll across the full-size image. Historical capture, not live data. Escape closes this view.