Chicago Fed National Activity Index
CFNAIgrowthFree tier
| Series ID | CFNAI |
|---|---|
| Units | Index |
| Frequency | Monthly |
| Category | growth |
| 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 observation, for 2026-08-01, is -0.04 Index, down from 0.08 for 2026-07-01. It has not been revised since it was first published. 98.2% of observations in this history were revised after first release.
| Latest observation | 2026-08-01 |
|---|---|
| Latest value | -0.04 Index |
| Previous | 0.08 (2026-07-01) |
| Change | -0.12 (-150.0%) |
| First published value | -0.04 |
| Last release | 2026-09-21 |
| Vintages stored | 182 |
| Observations | 714 |
| Largest revision (5 years) | 2022-01-01: 0.69 → -0.04 |
Get it in Python
import finzdata as yf
df = yf.Client().macro("CFNAI")
df.tail()Or chart it live on FinzData Explore.
Get a free API keySee history bundlesDownload free samples