Average Fed Mfg Survey: Delivery times: Current (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - 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 adjusted diffusion index for delivery times stood at 18.0 (share of CEOs seeing a recent increase minus share reporting a decrease) in September 2026, compared to 12.0 in August 2026.
Sample. In the monthly time series shown in the plot, there are 268 records. The series covers the time period stretching from June 2004 to September 2026.
History. Here's a peek at a few statistics calculated on the whole sample: the diffusion index hit a maximum of 43.0 in October 2021; it recorded a minimum of -17.5 in March 2009; it averaged 3.7.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 11.3800 |
| 2026-08-31 | 11.9600 |
| 2026-09-30 | 17.9600 |
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Series Metadata
| Field | Value |
|---|---|
| Description | Diffusion index for the question: Did delivery times increase or decrease in the past month? |
| Country | United States |
| Economic concept | Business survey response |
| Data type | Coincident 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 | 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 |
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