Chicago Fed National Activity Index
A monthly composite indicator of broad U.S. economic activity and related inflation pressure.
Full explanation
The Chicago Fed National Activity Index (CFNAI) is a monthly measure of whether overall U.S. economic activity is running above or below its historical trend. It combines 85 indicators spanning production and income, employment, consumption and housing, and sales, orders, and inventories. A reading around zero has historically corresponded to trend-like growth, while positive or negative readings have corresponded to above- or below-trend activity; the release also includes a three-month average and a diffusion index.
Why traders watch it
It provides a broad, single-number view of U.S. growth conditions and related inflation pressure, which can inform expectations for interest rates and the USD.
Market interpretation
- USD
- Can influence views of U.S. growth and the expected path of monetary policy, particularly when the result differs materially from expectations.
- U.S. Treasury yields
- Can contribute to changes in rate expectations when it reinforces or challenges the broader economic narrative.
- U.S. equity index futures
- May shape views of the growth and policy backdrop, though the reaction often depends on other data released nearby.
Stronger vs weaker outcomes
A reading stronger than expected may be interpreted as evidence of firmer-than-expected broad economic activity, while a weaker reading may be interpreted as evidence of softer activity. Market interpretation can also depend on the three-month average, the breadth of contributing indicators, and concurrent inflation or policy expectations.
A higher or more positive reading may indicate that broad U.S. activity is running firmer relative to trend.
A lower or more negative reading may indicate that broad U.S. activity is running softer relative to trend.
Positive readings have historically been associated with above-trend activity, while negative readings have historically been associated with below-trend activity.
Typical volatility
Moderate. The index is a composite measure built from underlying series that can be revised, and its monthly reading can be volatile. It is best assessed alongside the CFNAI-MA3, diffusion index, and other major U.S. activity releases.
Trading considerations
- Check whether the headline monthly CFNAI, CFNAI-MA3, and diffusion index point in the same direction.
- Allow for revisions to component data and to prior index readings.
- Compare the result with recent U.S. employment, industrial production, retail sales, housing, and inflation releases.
- Be aware of nearby U.S. data releases, which can make it difficult to isolate the market reaction.
Educational guidance only — never a trading signal or recommendation.
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