Average Fed Srv Survey: Inventory levels: Current (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - United States - FSR - Monthly
This series is part of the dataset: Average Fed Srv Survey (FetchSeries Research)
Download Full Dataset (.xlsx)Latest updates. Based on an average of regional Federal Reserve services surveys, the seasonally adjusted diffusion index for inventory levels was -4.7 (share of CEOs seeing a recent increase minus share reporting a decrease) in September 2026, versus -4.0 in August 2026.
Sample. In this monthly series, there are 153 records. The series covers the span of time extending from January 2014 to September 2026.
History. Check out some descriptive statistics we calculated on the full sample: the diffusion index had a mean value of 2.5; it reached its minimum of -16.8 in May 2020; it recorded its highest level of 11.8 in April 2024.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 5.10000 |
| 2026-08-31 | -4.05000 |
| 2026-09-30 | -4.65000 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Did inventories increase or decrease in the past month? |
| Country | United States |
| Economic concept | Business survey response |
| Data type | Coincident indicator of the business cycle |
| Seasonally adjusted | Yes |
| Deflation method | Not applicable |
| Rescaling | None |
| Measure type | Diffusion index (share of respondents reporting an increase minus share reporting a decrease) |
| Frequency | Monthly |
| Unit | Percentage points |
| Source | FetchSeries Research calculations on Federal Reserve data |
| Source type | Data research lab |
| Data licence | Creative Commons Attribution 4.0 International (CC BY 4.0) + FetchSeries disclaimers |
| Other information | Arithmetic average across 2 regional Federal Reserve services surveys |
| FSR temporal aggregation code | LM01 |
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