The federal reserve uses a large set of indicators to measure the risk premium in US economy asset prices. The ICE MOVE index which measures the volatility of the US Treasury market is one of those indicators, as government bonds theoretically provide a "risk free rate" to market participants

I believe that the infamous Fed put can be more readily measured in the UST market, then in equity index prices, which makes the ICE MOVE index a better leading indicator on where the Fed may or may not pivot from whatever their current course is
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