Two sources, one signal
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GLOVIZ picked VIX volatility index from FRED, Federal Reserve Bank of St. Louis and S&P 500 index from FRED, Federal Reserve Bank of St. Louis: two institutions, two measurement programmes, one signal. The pair qualifies because the changes move together, not just the trends, with r = 0.02 over 2,513 matched observations. Coincidences are filtered on the correlation board.
VIX volatility index and S&P 500 indexFRED, Federal Reserve Bank of St. Louis against FRED, Federal Reserve Bank of St. Louis · Insights opens on load
Sources: FRED, Federal Reserve Bank of St. Louis, FRED, Federal Reserve Bank of St. Louis
The same two, plotted against each other2513 matched points · trend line open
Sources: FRED, Federal Reserve Bank of St. Louis, FRED, Federal Reserve Bank of St. Louis