Nasdaq 100 · Monthly Heatmap — Nasdaq 100 Monthly Return Heatmap
Since 1985. November and December post the highest monthly win rates; January and September register the most frequent declines.
What this page answers
This static page is built to answer searches for Nasdaq 100 · Monthly Heatmap. It summarizes the live dataset behind the Nasdaq 100 Monthly Return Heatmap panel and links to the full interactive chart.
Since 1985. November and December post the highest monthly win rates; January and September register the most frequent declines. The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.
Latest Snapshot
- Updated
- 2026-06-05
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Data & Source
GET /api/ndx/monthly.json — Canonical dataset endpoint.
Yahoo Finance · Macrotrends · Robert Shiller · FRED · S&P Global · Nasdaq · NBER.
FAQ
Where does this data come from?
History of Market combines public market and macro datasets including Yahoo Finance, Macrotrends, Robert Shiller, FRED, S&P Global, Nasdaq, and NBER. The exact endpoint for this panel is linked below.
How often is it updated?
Daily-tier datasets refresh after the U.S. market close, with a broader weekly refresh on Sunday. The timestamp shown on this page comes from the JSON payload.
Can I use the data?
Yes, for research and education with attribution to History of Market. Upstream data sources retain their own terms.