Swiss inflation accelerated more sharply than expected in August, with headline CPI rising from 0.4% to 0.8% y/y, above 0.5% consensus. On monthly basis, CPI swung from -0.1% to +0.4% m/m, compared with expectations for no change. However, underlying pressures were considerably softer, with core inflation at 0.4% y/y and 0.2% m/m.
Energy and imported goods accounted for much of increase. Imported-product prices rose 1.5% y/y, compared with 0.6% for domestic products, while energy and fuels jumped 4.1% m/m and 9.2% y/y. Petroleum products surged 9.0% on month, led by heating oil, diesel and petrol, and contributed around 0.22 percentage point to monthly CPI increase. Housing costs also added upward pressure, with housing rentals rising 0.4% m/m.
Broader inflation picture remained subdued. Services prices were flat on month, food prices were unchanged and CPI excluding petroleum products rose just 0.2% m/m and 0.3% y/y. August therefore delivered a clear upside headline surprise, but composition suggests acceleration was concentrated in energy and imported prices rather than signaling a broad resurgence in domestic inflation.
Data Summary
| Indicator | August | July | Consensus |
|---|---|---|---|
| CPI m/m | +0.4% | -0.1% | 0.0% |
| CPI y/y | +0.8% | +0.4% | +0.5% |
| Core CPI m/m | +0.2% | — | — |
| Core CPI y/y | +0.4% | — | — |
| Domestic products y/y | +0.6% | — | — |
| Imported products y/y | +1.5% | — | — |
Inflation Components
| Component | August Change |
|---|---|
| Energy and fuels | +4.1% m/m, +9.2% y/y |
| Petroleum products | +9.0% m/m, +25.2% y/y |
| Petrol | +6.4% m/m, +15.8% y/y |
| Diesel | +10.0% m/m, +23.3% y/y |
| Heating oil | +13.8% m/m, +53.1% y/y |
| Housing rentals | +0.4% m/m, +1.6% y/y |
| Services | 0.0% m/m, +1.0% y/y |
| Food and non-alcoholic beverages | 0.0% m/m, -1.1% y/y |
| CPI excluding petroleum products | +0.2% m/m, +0.3% y/y |
Key Takeaways
- Swiss headline inflation accelerated from 0.4% to 0.8% y/y in August, clearly above 0.5% consensus. Monthly CPI also surprised higher at +0.4%, versus expectations for no change.
- Underlying inflation stayed much softer, with core CPI at 0.4% y/y and 0.2% m/m.
- Energy was dominant driver. Petroleum-product prices surged 9.0% m/m and 25.2% y/y, with heating oil, diesel and petrol all recording sharp increases.
- Imported inflation at 1.5% y/y was notably stronger than domestic-product inflation at 0.6%.
- Services prices were flat on month, while food prices were unchanged and remained below year-earlier levels.
- Most revealing underlying measure was CPI excluding petroleum products, which stood at only 0.3% y/y.
- August therefore represents a clear headline upside surprise, but composition points to an energy- and import-led spike rather than broad domestic inflation resurgence.
