Euro Area Flash CPI

The flash estimate gives a first reading of euro-area inflation almost as soon as the month ends. It is based on the Harmonised Index of Consumer Prices, a measure designed so that member states compile their price data to common rules, and it is the index against which the European Central Bank defines its medium-term target. Eurostat publishes the flash using early national data and estimates for countries that have not yet reported, followed a couple of weeks later by a final figure with full detail.

The release is unusually predictable in one respect: several large member states, including Germany, France, Italy and Spain, publish their own preliminary numbers in the days or hours before. By the time Eurostat reports, forecasters have usually refined their expectations considerably, so surprises tend to be smaller than for comparable US data. When they do occur, the core rate, which excludes energy, food, alcohol and tobacco, and services inflation have historically drawn the sharpest reaction in bund yields and the euro.

Unlike the US CPI, HICP excludes owner-occupied housing costs, a long-standing debate within the ECB. Energy weighs heavily in the headline, and government measures such as price caps, subsidies or changes to indirect taxes can shift it sharply. Package holidays and clothing sales create seasonal swings that the flash figure, published unadjusted, does not smooth.

The final release rarely differs from the flash by more than a tenth of a percentage point. The ECB's own wage tracker and the negotiated-wages indicator are the natural companions.