S5INFT · Consensus Forward PE — Information Technology Forward P/E Multiple Since 1998
XLK forward P/E (daily): 20.8× as of 2026-09-18.
Tech Sector Forward P/E — Thirty-year forward P/E multiple trajectory for S&P Information Technology against its March 2000 peak of 58.7x.
The plate
Tracking weekly consensus forward P/E for the S&P 500 Information Technology Index (S5INFT). The drop from the March 2000 peak of 58.7× to under 10× in November 2008 remains the defining secular de-rating in modern tech history.
What this page answers
This static page is built to answer searches for S5INFT · Consensus Forward PE. It summarizes the live dataset behind the Information Technology Forward P/E Multiple Since 1998 panel and links to the full interactive chart.
Tracking weekly consensus forward P/E for the S&P 500 Information Technology Index (S5INFT). The drop from the March 2000 peak of 58.7× to under 10× in November 2008 remains the defining secular de-rating in modern tech history. 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
GET /api/sectors/forward-pe.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.