Current readings
Fear & Greed–
Extreme FearNeutralExtreme Greed
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SPX last–
Correlation (visible range)–
Pearson correlation between the index level and price over the dates currently shown. +1 = move together, −1 = move opposite.
Data source
Live data from CNN's Fear & Greed index and the Twelve Data API, fetched server-side through this app's own /api/fear-greed and /api/prices routes (both block direct browser calls via CORS/bot-blocking). If either source is unavailable, the app automatically falls back to a realistic simulated series so it still works.