A Century of Market Leadership: The Top 10 by Market Cap Across Ten Decades
Decade Top 10 Rosters — Ten rosters of America's ten largest corporations from the 1920s to the 2020s: a century of industrial evolution.
The plate
Ten historical rosters displayed side by side from the 1920s through the 2020s, tracing the structural transformation of corporate America across rail, autos, oil, retail, personal computing, platforms, and AI.
What this page answers
This static page is built to answer searches for TOP 10 · DECADE × RANK. It summarizes the live dataset behind the A Century of Market Leadership: The Top 10 by Market Cap Across Ten Decades panel and links to the full interactive chart.
Ten historical rosters displayed side by side from the 1920s through the 2020s, tracing the structural transformation of corporate America across rail, autos, oil, retail, personal computing, platforms, and AI. The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.
Data & Source
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.