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 survey data about manufacturers based in Pennsylvania, New Jersey and Delaware, the seasonally adjusted diffusion index for delivery times (share of CEOs seeing a recent increase minus share reporting a decrease) stood at 18.9 in March 2026, compared to -9.9 in February 2026.
Sample. In this monthly series, there are 695 records in total. The series covers the time span stretching from May 1968 to March 2026.
History. Here’s a quick look at a few statistics calculated on the full sample: the diffusion index had a mean value of -2.2; it hit a trough of -34.2 in June 1980; it attained a maximum of 39.0 in November 2021.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-01-31 | 7.3 |
| 2026-02-28 | -9.9 |
| 2026-03-31 | 18.9 |
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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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