Manufacturing Business Outlook Survey: Delivery times: Current (increase vs decrease; diffusion index; percentage points; seasonally unadjusted) - United States - Philly FED - Monthly
This series is part of the dataset: Manufacturing Business Outlook Survey (Philly FED)
Download Full Dataset (.xlsx)Latest updates. According to survey data about manufacturers based in Pennsylvania, New Jersey and Delaware, the seasonally unadjusted diffusion index for delivery times (share of CEOs seeing a recent increase minus share reporting a decrease) was 3.0 in October 2025, versus -3.6 in September 2025.
Sample. The monthly time series presented in the chart has 690 records overall. The series covers the span of time going from May 1968 to October 2025.
History. Here's a glimpse of a few simple statistics computed on the whole sample: the diffusion index had a mean value of -2.2; it recorded a minimum of -36.0 in June 1980; it attained a maximum of 41.8 in March 2022.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-08-31 | -3.8 |
| 2025-09-30 | -3.6 |
| 2025-10-31 | 3.0 |
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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 | No |
| 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) |