European Stocks Rise as Tech Sector Rallies on US AI Policy Signals

European stock markets rebounded on Wednesday, with major indexes tracking toward one-week highs as a rally in technology shares helped snap a two-day decline. Investors are now positioning for a series of key macroeconomic data releases from both sides of the Atlantic.

The pan-European STOXX 600 index gained 0.7%, with similar advances of 0.7% for Germany’s DAX and London’s FTSE 100.

Tech Shares Rebound on AI Support

Technology and semiconductor equipment companies provided a significant lift to the market. The gains followed reports that U.S. technology executives agreed to voluntary safety standards for AI development, a move supported by Washington.

Crucially for the sector, U.S. officials also reiterated explicit support for the rapid expansion of data centers. This eased investor concerns over potential regulatory hurdles or a pullback in corporate capital spending, which had weighed on the market following recent operational pauses at major AI firms.

Focus Shifts to Inflation and Economic Data

Beyond the technology sector, trading activity is being shaped by a dense economic calendar. Market participants are evaluating a range of new data points, including:

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• German retail sales and employment figures
• Preliminary French and German inflation prints for September

In the U.S., the primary focus is on the upcoming Personal Consumption Expenditures (PCE) price index, the Federal Reserve’s preferred measure of inflation. With U.S. Treasury yields lingering near multi-decade highs, a PCE report showing stable underlying price pressures could reinforce expectations that the Fed may be finished with its policy tightening cycle.

Monthly Performance in Focus

Despite Wednesday's gains, the broader market has faced significant headwinds throughout September. The STOXX 600 is on track for a monthly decline of nearly 2%, which would mark its first losing month in six.

This pullback follows a strong summer rally and has been driven by a combination of spiking sovereign bond yields, persistent energy cost pressures, and recent uncertainty surrounding the artificial intelligence sector, according to market analysts.