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Eurozone flash CPI mornings on EURUSD

Eurozone flash inflation comes out at 10:00 London time most months, and it's one of the few European releases that can properly move EURUSD in the middle of the morning.

The thing that makes this release a bit different is that the national numbers often come out earlier. Germany, France, Spain and Italy publish their own flash figures in the days or hours before, so by the time the eurozone number lands, the market often has a fair idea of what to expect. Big surprises are less common than with US CPI.

That changes how I think about the release. If the national prints were all hot, the eurozone number being hot isn't really news, and the reaction can be small or even fade. The bigger moves tend to come when the eurozone figure disagrees with what the national numbers suggested, or when core inflation goes a different way from the headline.

In practice I stay flat into the release, look at the reaction for the first few minutes, and only trade if price holds a clear direction beyond the release candle. If EURUSD reacts and then gives it back within ten minutes, I treat it as noise.

The German state releases earlier in the week are good to check too. They often move EUR more than people expect.

Something that matters is how close the next ECB meeting is. If a decision is a week or two away and the market is unsure about the next move, the CPI print carries more weight because it feeds straight into that decision. If the ECB has clearly signalled what it'll do, CPI has to be a big surprise to change anything. Checking what's priced for the next meeting before the release gives you a sense of how much the number can matter on that particular day. A print that lands a week before a finely balanced meeting carries a lot more weight than one landing right after a decision the ECB had already signalled.

Core versus headline is where the confusion often comes from. Energy prices can swing the headline number a lot, while core inflation, without energy and food, is what policymakers tend to focus on. A hot headline with soft core can get a muted or even negative reaction for the euro. If the first move goes one way and then reverses, checking the core figure usually explains it. Most calendars show both, but people tend to look at the headline first and react to that. Reading core first saves a lot of confusion when the reaction looks backwards.

German and French data often give a strong hint, so the reaction to the Eurozone release can be smaller than expected.

Some scalpers use the national releases as a guide and avoid trading in the minutes around each one. On those mornings, the market can move several times before 11:00 Prague, so waiting until all releases are out is a safer approach.

Country releases before the flash number can set expectations. Spain, France, Germany and Italy often publish their preliminary inflation figures a day or two before, or on the same morning. If those come in hot, the market adjusts its expectations for the eurozone flash, and the reaction to the flash itself might be smaller. Following the country numbers through the week gives a better sense of what's already priced in. The German state releases on the morning of the German figure deserve attention too, since they come out one by one through the morning.

I'd also look at what the US calendar has that day. Flash CPI often comes out during the London morning, but if there's an important US release later in the day, EURUSD might only react briefly to the European number and then wait for the US data. In that case, the flash CPI move can fade by the afternoon. Trading the flash release as a short term move, with a plan to be out before the US data, is safer than holding for a bigger move that the US release could easily reverse.