Kansas City Fed Manufacturing Survey: Inventories of raw materials: Future (increase vs decrease; diffusion index; percentage points; seasonally unadjusted) - 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 unadjusted diffusion index for inventories of raw materials was 2.0 (share of CEOs seeing a future increase minus share forecasting a decrease) in February 2026, compared to -4.0 in January.
Sample. There are 296 data points overall in the monthly time series displayed in the chart above. The series covers the time range going from July 2001 to February 2026.
History. Here's a glimpse of some summary statistics we computed on the whole sample: the diffusion index had an average value of -1.1; it reached a maximum of 24.0 in June 2018; it reached a trough of -38.0 in February 2009.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-12-31 | 5.0 |
| 2026-01-31 | -4.0 |
| 2026-02-28 | 2.0 |
Tip. To simplify complex analyses, we categorize time series into worksheets and datasets. If you look below, you will discover how we arranged further information linked to the statistics provided here.
Not for investment purposes. Data and analyses provided on FetchSeries are not suitable for investment purposes or as a basis for making financial decisions. Users should ask for expert advice and do their own independent due diligence before pledging money to any investment.
Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Will inventories or raw materials increase or decrease over the next six months? |
| Country | United States |
| Economic concept | Business survey response |
| Data type | Leading indicator of the business cycle |
| Seasonally adjusted | No |
| 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.