Chicago Fed National Activity Index: Diffusion Index
CFNAIDIFFother indicatorsFree tier
| Series ID | CFNAIDIFF |
|---|---|
| Units | Index |
| Frequency | Monthly |
| Category | other indicators |
| Latest observation | 2026-08-01 |
| History | Point-in-time: every value as first published plus each revision, so backtests see only what was known on the day |
Latest reading
The latest Chicago Fed National Activity Index: Diffusion Index observation, for 2026-08-01, is 0.02 Index, down from 0.04 for 2026-07-01. It has not been revised since it was first published. 94.2% of observations in this history were revised after first release.
| Latest observation | 2026-08-01 |
|---|---|
| Latest value | 0.02 Index |
| Previous | 0.04 (2026-07-01) |
| Change | -0.02 (-50.0%) |
| First published value | 0.02 |
| Last release | 2026-09-21 |
| Vintages stored | 169 |
| Observations | 712 |
| Largest revision (5 years) | 2025-11-01: -0.24 → -0.54 |
Get it in Python
import finzdata as yf
df = yf.Client().macro("CFNAIDIFF")
df.tail()Or chart it live on FinzData Explore.
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