TOP 10 · CO-OCCURRENCE + PAIRS — Who sat next to whom — across how many decades
Longest co-tenures — Which pairs shared the top 10 for the most decades.
Pair the long-lived firms and count the decades they shared the room. GE × AT&T was a seven-decade pairing; IBM × Exxon, five. Square size and ink density scale with shared decades; the diagonal carries each firm's own century rhythm.
What this page answers
This static page is built to answer searches for TOP 10 · CO-OCCURRENCE + PAIRS. It summarizes the live dataset behind the Who sat next to whom — across how many decades panel and links to the full interactive chart.
Pair the long-lived firms and count the decades they shared the room. GE × AT&T was a seven-decade pairing; IBM × Exxon, five. Square size and ink density scale with shared decades; the diagonal carries each firm's own century rhythm. The data is refreshed by the History of Market pipeline and published as a stable JSON endpoint for research, citation, and AI-agent use.
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Data & Source
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.