Fifth District Survey of Manufacturing Activity: Inventories of raw materials: Current (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - United States - Richmond FED - Monthly
This series is part of the dataset: Fifth District Survey of Manufacturing Activity (Richmond FED)
Download Full Dataset (.xlsx)Latest updates. According to recent survey data about manufacturing firms in the Fifth District, the seasonally adjusted diffusion index for inventories of raw materials (share of CEOs seeing a recent increase minus share reporting a decrease) was 30.0 in November 2025, compared to 17.0 in October 2025.
Sample. In the monthly series plotted above, there are 345 records overall. The series covers the time period extending from January 1997 to November 2025.
History. Here's a peek at a few summary statistics we calculated on the entire sample: the diffusion index reached a minimum of -25.0 in July 2021; it achieved a maximum of 35.0 in February 2016; it was equal on average to 15.0.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-30 | 17.0 |
| 2025-10-31 | 17.0 |
| 2025-11-30 | 30.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Did raw materials inventories increase or decrease in the past month? |
| Country | United States |
| Economic concept | Business survey response |
| Data type | Coincident indicator of the business cycle |
| Deflation method | Not applicable |
| Seasonally adjusted | Yes |
| Rescaling | None |
| Frequency | Monthly |
| Unit | Percentage points |
| Source | Federal Reserve Bank of Richmond |
| Source type | Central bank |
| Data licence | Not copyrightable under U.S. law |
| Measure type | Diffusion index (share of respondents reporting an increase minus share reporting a decrease) |
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