Average Fed Mfg Survey: Inventories (total): Current (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - United States - FSR - Monthly
This series is part of the dataset: Average Fed Mfg Survey (FetchSeries Research)
Download Full Dataset (.xlsx)Latest updates. Based on an average of regional Federal Reserve manufacturing surveys, the seasonally adjusted diffusion index for inventories (total) was -1.8 (share of CEOs seeing a recent increase minus share reporting a decrease) in September 2026, compared to -4.5 in August.
Sample. There are 268 records overall in the monthly series displayed in the figure above. The series covers the span of time going from June 2004 to September 2026.
History. Here's a snapshot of a few statistics computed on the whole sample: the diffusion index recorded its highest level of 15.8 in October 2021; it hit a trough of -39.0 in March 2009; it averaged -2.0.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 2.15000 |
| 2026-08-31 | -4.45000 |
| 2026-09-30 | -1.80000 |
Nugget of wisdom. For easier exploration, we categorize series into data sets and worksheets. By moving down the page, you will discover how we structured further material linked to the statistics provided here.
Not for investment purposes. Data and analyses accessible on FetchSeries are not intended for investment purposes or as a basis for financial-decision making. Users should obtain expert advice and perform their own independent due diligence before making any financial commitments.
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 manufacturing surveys |
| FSR temporal aggregation code | LM01 |
Series in the same data set
Discover the other time series included in this data set.