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Fed Put

The Fed put is the market's expectation that the Federal Reserve will respond to severe equity declines or financial stress by cutting rates, injecting liquidity, or launching asset purchases — effectively placing a floor under stock prices. The term draws an analogy to a protective put option, where the Fed acts as an implicit insurer against catastrophic drawdowns. It is not formal policy but an inferred pattern of behavior, and its implied "strike price" shifts with inflation and economic conditions.

HOW IT WORKS

The Fed put has no fixed formula; it is identified by matching observable triggers to historical Fed responses. Trigger signals include S&P 500 drawdowns of 10–20%, VIX spikes above 30–40, credit-spread widening, and dysfunction in funding or Treasury markets. When those conditions appear, the Fed has historically responded with emergency rate cuts, repo operations, quantitative easing, or credit facilities. The implied strike is not static — in March 2020 (low inflation, frozen credit markets) the Fed intervened after a 34% decline; in 2022 (CPI above 8%) it kept hiking through a 25% drawdown. The put is strongest when inflation is low and the Fed has room to ease; it is effectively out of the money when inflation constrains the response.

IN TAPEBOARD

Use the Macro Overlay panel to monitor the key trigger variables — S&P 500 drawdown percentage, VIX level, and investment-grade credit spreads — on a single dashboard. When those indicators approach historically observed intervention thresholds, Tapeboard's Fed Reaction Tracker surfaces relevant FOMC statements, dot-plot shifts, and prior intervention dates for comparison. Set a Condition Alert on VIX and spread thresholds to receive a notification when the market is entering the zone where the Fed put has historically come into play, helping you assess whether current inflation conditions make intervention likely or constrained.

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