Chicago Fed National Financial Conditions Index (NFCI)
The St. Louis Fed’s Financial Stress Index (STLFSI4) is one index that is supposed to measure stress in the financial system. Its reading as of the August 20, 2025 update (reflecting data through August 15, 2025) is -.8153: source: Federal Reserve Bank of St. Louis, St. Louis Fed Financial Stress Index [STLFSI4], retrieved from FRED, …