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>If you took the whole tradable US securities market and said "what doesn't correlate with these price movements?" it doesn't mean anything.

If it did, I would ask you, "What explicitly do you _think_ this means?"

Caveat: I'm an idiot and just trying to understand from a layman's perspective.

Wouldn't you be able to use this to invest when you think the market, as a whole, is overvalued?

For example, if the tool showed that a 30-year treasury bond (or similar) was negatively correlated with the S&P 500, wouldn't it suggest it was a good idea to buy bonds (or similar) when I thought the overall equity market was overheated? The idea being there are certain industry/stocks like maybe precious metals/mining that do well when the rest of the market is tanking?



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