Kansas City Fed Services Survey: Inventory levels: Future (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 Services Survey
Download Full Dataset (.xlsx)Latest updates. According to recent survey data about services firms in the Tenth Federal Reserve District, the seasonally adjusted diffusion index for inventory levels (share of CEOs seeing a future increase minus share forecasting a decrease) was 9.0 in September 2026, compared to 1.0 in August 2026.
Sample. In the monthly series presented in the chart, there are 153 data points. The series covers the time period extending from January 2014 to September 2026.
History. Here's a snapshot of some summary statistics computed on the entire sample: the diffusion index had an average value of 5.3; it reached a minimum of -20.0 in March 2020; it reached a maximum of 29.0 in April 2022.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 1.00000 |
| 2026-08-31 | 1.00000 |
| 2026-09-30 | 9.00000 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Will inventory levels 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 | 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: Inventory levels |
| FSR temporal aggregation code | LM01 |
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