Statistically, One of Wall Street's Most Accurate Forecasting Tools Is Calling for the S&P 500 to Plunge at Least 33%
Why it matters
A historical predictive indicator, which has never been wrong under specific circumstances, is forecasting a 33% plunge in the S&P 500. This indicator has been accurate since 1871, suggesting a potential significant market downturn. Investors should be cautious and consider diversifying their portfolios.
Expected market reaction
Market impact analysis based on bearish sentiment with 90% confidence.
Evidence trail
Evidence
Source
Yahoo Finance
Claim
Statistically, One of Wall Street's Most Accurate Forecasting Tools Is Calling for the S&P 500 to Plunge at Least 33%
AI inference
Bearish · 90%
Generated
2026-02-08 11:56
AI provenance
Technical identifiers
- Provider tag
- groq-llama-3.1-8b-instant
- Analysis version
- groq-llama-3.1-8b-instant
- Article id
- 43061
Original source
Under a select set of circumstances (which we're in now), this predictive indicator has never been wrong, dating back to January 1871.
Read the full article on Yahoo Finance
Original article published by Yahoo Finance on February 8, 2026. Analysis and insights provided by AnalystMarkets AI.