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. According to recent survey data about manufacturing firms in the Third Federal Reserve District, the seasonally adjusted diffusion index for delivery times (share of CEOs seeing a recent increase minus share reporting a decrease) was -4.3 in November 2025, versus 6.6 in October 2025.
Sample. The monthly time series presented in the chart has a total of 691 records. The series covers the time span extending from May 1968 to November 2025.
History. Here’s a quick look at some summary statistics we calculated on the entire sample: the diffusion index averaged -2.2; it reached its minimum of -34.2 in June 1980; it reached a maximum of 39.8 in November 2021.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-30 | -3.4 |
| 2025-10-31 | 6.6 |
| 2025-11-30 | -4.3 |
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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) |
Series in the same data set
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