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Inflation, AI Fears Drive US Stock Selloff
September CPI rose 3.7% as core inflation beat forecasts; S&P 500 fell 1.1%, Nasdaq 1.9%, and CoreWeave bonds yielded above 15% distress levels.
Finance · 80 sources · Oct 18, 2026Read itThe journal
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About S&P 500
The S&P 500 is a stock market index tracking the stock performance of 500 companies listed on stock exchanges in the United States that are considered to have large market capitalizations. The S&P 500 is a subset of the S&P 1500. It is maintained by S&P Dow Jones Indices and its components are selected by a committee. For a list of the criteria for addition to the index, see S&P 1500 § Selection criteria.
Everything about S&P 500 →- Country
- United States
- Inception
- March 4, 1957
- Website
- http://www.spindices.com/indices/equity/sp-500, https://www.spglobal.com/spdji/en/indices/equity/sp-500/#overview








