Kansas City Fed Manufacturing Survey: Inventories of raw materials: Current (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - United States - Kansas City Fed - Monthly
This series is part of the dataset: Kansas City Fed Manufacturing Survey
Download Full Dataset (.xlsx)Latest updates. According to recent survey data about manufacturing firms in the Tenth Federal Reserve District, the seasonally adjusted diffusion index for inventories of raw materials was 9.0 (share of CEOs seeing a recent increase minus share reporting a decrease) in September 2026, compared to 11.0 in August.
Sample. There are 303 records overall in the monthly series displayed in the figure above. The series covers the span of time extending from July 2001 to September 2026.
History. Here are some summary statistics calculated on the entire sample: the diffusion index had a mean value of 1.6; it recorded its maximum of 31.0 in October 2017; it reached its minimum of -30.0 in May 2003.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 3.00000 |
| 2026-08-31 | 11.0000 |
| 2026-09-30 | 9.00000 |
Nugget of wisdom. We group indicators into data sets and worksheets for our users' convenience. By moving down the page, you will find how we arranged further information related to the statistics provided here.
Not for investment purposes. Content collected and published on FetchSeries is not suitable for investment purposes or as a basis for making financial decisions. Users should obtain expert advice and do independent analysis before pledging money to any investment.
Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Did inventories or raw materials 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 | Federal Reserve Bank of Kansas City |
| Source type | Central bank |
| Data licence | Reproduction allowed subject to conditions |
| Other information | FS correspondence: Inventories of raw materials |
| FSR temporal aggregation code | LM01 |
Series in the same data set
Discover the other time series included in this data set.