S&P 500 · Annualized Matrix — Pick Any Entry Year, Any Exit Year
Buy/sell matrix — Pick any buy year and sell year; read the annualized return.
Each cell below the diagonal represents a hypothetical hold. The longer the holding period, the tighter annualized returns converge toward the long-term mean.
What this page answers
This static page is built to answer searches for S&P 500 · Annualized Matrix. It summarizes the live dataset behind the Pick Any Entry Year, Any Exit Year panel and links to the full interactive chart.
Each cell below the diagonal represents a hypothetical hold. The longer the holding period, the tighter annualized returns converge toward the long-term mean. The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.
The plate
Latest Snapshot
- Updated
- 2026-08-29
- Latest value
- 7,730.992026-08-27
- CAGR
- +6.37%
- Sample
- 1928-01-31 – 2026-08-27
- Observations
- 1,184
- Sample
- 1928-01-31 – 2026-08-27
Data & Source
GET /api/sp500/century.json — Canonical dataset endpoint.
Exchange closing prices · Company filings · Robert Shiller · FRED · NBER.
FAQ
Where does this data come from?
History of Market combines public market and macro datasets — exchange closing prices, company filings, Robert Shiller, FRED, NBER, and the UBS Global Investment Returns Yearbook (Dimson–Marsh–Staunton). 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.