Average Fed Mfg Survey: Delivery times: Future (increase vs decrease; diffusion index; percentage points; seasonally unadjusted) - United States - FSR - Monthly
This series is part of the dataset: Average Fed Mfg Survey (FetchSeries Research)
Download Full Dataset (.xlsx)Latest updates. Based on an average of regional Federal Reserve manufacturing surveys, the seasonally unadjusted diffusion index for delivery times stood at 11.0 (share of CEOs seeing a future increase minus share forecasting a decrease) in September 2026, compared to 6.5 in August 2026.
Sample. There are 268 data points in the monthly series shown in the chart above. The time span covered by the series is from June 2004 to September 2026.
History. Here’s a quick look at a few simple statistics we computed on the entire sample: the diffusion index averaged 2.3; it reached a trough of -15.3 in June 2022; it attained a maximum of 20.2 in March 2022.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 4.84000 |
| 2026-08-31 | 6.54000 |
| 2026-09-30 | 11.0400 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Will delivery 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 |
| 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 | FetchSeries Research calculations on Federal Reserve data |
| Source type | Data research lab |
| Data licence | Creative Commons Attribution 4.0 International (CC BY 4.0) + FetchSeries disclaimers |
| Other information | Arithmetic average across 5 regional Federal Reserve manufacturing surveys |
| FSR temporal aggregation code | LM01 |
Series in the same data set
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