Pick Any Entry Year, Any Exit Year
Hold-period analysis across every entry/exit combination.
This page is the landing card for the Pick Any Entry Year, Any Exit Year chart — one panel inside History of Market, a century-scale editorial chronicle of the U.S. stock market. The interactive visualization, the surrounding S&P 500 narrative, and cross-references to related panels all live on the main chronicle page; this card carries the same canonical data and links through to it.
The underlying dataset is published as a machine-readable JSON endpoint, refreshed automatically by a daily scraper pipeline and held under a CC BY 4.0 licence. You are welcome to read it, cite it, embed it, or hand it to an AI agent for analysis — attribution to History of Market is the only ask.
GET /api/sp500/century.json — canonical dataset endpoint (application/json, CORS-open).