Citigroup’s eurozone economic surprise index has surged rapidly over the past few months, reaching the highest level in more than three years. Remember when the situation around Iran first became tense—energy shocks combined with uncertainty badly rattled European data, and market expectations were pushed down very low. As a result, services and parts of manufacturing have now rebounded, and actual performance has turned out to be clearly better than expected, so the surprise index naturally climbed.

This kind of data improvement can help short-term confidence in European assets, but whether it can translate into truly durable growth depends on two key factors: whether energy costs can be stabilized, and whether business investment willingness can pick up. Historically, such surprise rebounds are often the product of expectation adjustments; a true cycle turning point still requires more confirmation. This round of improving eurozone data looks more like a technical rebound from overly pessimistic sentiment rather than the beginning of a structural improvement. Keep watching energy prices and capex data.