Manufacturing Business Outlook Survey: Delivery times: Current (increase vs decrease; diffusion index; percentage points; seasonally adjusted) - United States - Philly FED - Monthly
This series is part of the dataset: Manufacturing Business Outlook Survey (Philly FED)
Download Full Dataset (.xlsx)Latest updates. Based on firms' responses to the Manufacturing Business Outlook Survey carried out by the Philadelphia FED, the seasonally adjusted diffusion index for delivery times (share of CEOs seeing a recent increase minus share reporting a decrease) was 26.5 in September 2026, compared to 3.7 in August.
Sample. In the monthly time series plotted above, there are a total of 701 records. The time period covered by the series is from May 1968 to September 2026.
History. Take a look at a few statistics we computed on the full sample: the diffusion index had a mean value of -2.1; it reached its minimum of -34.2 in June 1980; it peaked at 39.0 in November 2021.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-07-31 | 9.60000 |
| 2026-08-31 | 3.70000 |
| 2026-09-30 | 26.5000 |
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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 |
| Deflation method | Not applicable |
| Seasonally adjusted | Yes |
| Rescaling | None |
| Frequency | Monthly |
| Unit | Percentage points |
| Source | Federal Reserve Bank of Philadelphia |
| 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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