Fifth District Survey of Manufacturing Activity: Vendor lead times: Future (increase vs decrease; diffusion index; percentage points; seasonally unadjusted) - 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 survey data about manufacturers collected by the Federal Reserve Bank of Richmond, the seasonally unadjusted diffusion index for vendor lead times (share of CEOs seeing a future increase minus share forecasting a decrease) stood at 8.0 in November 2025, versus 1.0 in the previous month.
Sample. The monthly series displayed in the chart has 345 observations overall. The time range covered by the series stretches from January 1997 to November 2025.
History. Take a look at some statistics computed on the entire sample: the diffusion index reached a minimum of -31.0 in December 2022; it peaked at 46.0 in May 2021; it was equal on average to 5.3.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-30 | 6.0 |
| 2025-10-31 | 1.0 |
| 2025-11-30 | 8.0 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Will vendor lead times increase or decrease over the next six months? |
| Country | United States |
| Economic concept | Business survey response |
| Data type | Leading indicator of the business cycle |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| 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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