The ISM Services Business Activity Index is a key component of the ISM Services PMI, reflecting the output levels of the U.S. service sector. It measures whether business activity has increased, decreased, or remained unchanged compared to the previous month. As the service sector accounts for the majority of U.S. GDP, this indicator is a vital gauge of overall economic health and momentum. A reading above 50 indicates expansion, while a reading below 50 signals contraction.
The index is derived from a monthly survey of over 400 purchasing and supply executives across 19 service industries. Respondents report on changes in business activity, and the index is calculated as a diffusion index where the percentage of positive responses is added to half of the neutral responses.
| Date | Actual | Forecast | Surprise |
|---|---|---|---|
| Sep 3, 2026 | — | 59.00 | — |
| Aug 5, 2026 | 59.10 | 56.00 | +3.10 |
| Jul 6, 2026 | 55.40 | 57.20 | -1.80 |
| Jun 3, 2026 | 57.70 | 55.00 | +2.70 |
| May 5, 2026 | 55.90 | 53.50 | +2.40 |
| Apr 6, 2026 | 53.90 | 58.00 | -4.10 |
| Mar 4, 2026 | 59.90 | 57.00 | +2.90 |
| Feb 4, 2026 | 57.40 | 55.80 | +1.60 |
| Jan 7, 2026 | 56.00 | 54.00 | +2.00 |
| Dec 3, 2025 | 54.50 | 54.50 | 0.00 |
| Nov 5, 2025 | 54.30 | 50.20 | +4.10 |
| Oct 3, 2025 | 49.90 | 51.80 | -1.90 |
| Sep 4, 2025 | 55.00 | 53.00 | +2.00 |
| Aug 5, 2025 | 52.60 | 54.30 | -1.70 |
| Jul 3, 2025 | 54.20 | 49.80 | +4.40 |
| Jun 4, 2025 | 50.00 | 54.00 | -4.00 |
| May 5, 2025 | 53.70 | 52.90 | +0.80 |
| Apr 3, 2025 | 55.90 | 54.00 | +1.90 |
| Mar 5, 2025 | 54.40 | 54.20 | +0.20 |
| Feb 5, 2025 | 54.50 | 58.10 | -3.60 |
| Jan 7, 2025 | 58.20 | 54.10 | +4.10 |
| Dec 4, 2024 | 53.70 | 57.30 | -3.60 |
| Nov 5, 2024 | 57.20 | 59.70 | -2.50 |
| Oct 3, 2024 | 59.90 | 53.00 | +6.90 |
| Sep 5, 2024 | 53.30 | 54.00 | -0.70 |
| Aug 5, 2024 | 54.50 | 50.90 | +3.60 |
| Jul 3, 2024 | 49.60 | 61.00 | -11.40 |
| Jun 5, 2024 | 61.20 | 53.00 | +8.20 |
| May 3, 2024 | 50.90 | 56.40 | -5.50 |
| Apr 3, 2024 | 57.40 | 56.70 | +0.70 |
| Mar 5, 2024 | 57.20 | 54.90 | +2.30 |
| Feb 5, 2024 | 55.80 | 57.00 | -1.20 |
| Jan 5, 2024 | 56.60 | 55.30 | +1.30 |
| Dec 5, 2023 | 55.10 | 54.00 | +1.10 |
| Nov 3, 2023 | 54.10 | 59.00 | -4.90 |
| Oct 4, 2023 | 58.80 | 56.50 | +2.30 |
| Sep 6, 2023 | 57.30 | 56.80 | +0.50 |
| Aug 3, 2023 | 57.10 | 57.20 | -0.10 |
| Jul 6, 2023 | 59.20 | 51.90 | +7.30 |
| Jun 5, 2023 | 51.50 | 52.50 | -1.00 |
| May 3, 2023 | 52.00 | 54.50 | -2.50 |
