European equity markets closed largely unchanged, with telecommunications stocks declining as concerns grew that SpaceX could capture a larger share of the mobile communications market. Investors also assessed the impact of a mutual halt to attacks between the United States and Iran.

The Stoxx Europe 600 index finished the session essentially flat. Telecoms were among the leading decliners, following a Bloomberg report that SpaceX and Charter Communications Inc. have held high-level executive talks about partnering to launch a consumer mobile service. This news weighed on the sector's heavyweight, Deutsche Telekom, which fell by 5.4%.

In other corporate news, Heidelberg Materials AG dropped 9.4%, leading losses among construction-related stocks after analysts downgraded its revenue forecast for the second fiscal quarter. Technology, media, and energy stocks were the best performers on the day.

On the geopolitical front, the U.S. President stated that peace talks with Iran are scheduled to restart on Tuesday in Doha, following an agreement by both sides to halt a series of reciprocal attacks around the Strait of Hormuz. Brent crude oil rose 1.5% to $73 per barrel.

"Despite the volatile news flow over the weekend, it seems everyone has already priced out the geopolitical risk premium in their assumptions," said Andrea Gabellone, Global Head of Equities at KBC Securities.

As enthusiasm for artificial intelligence trading has cooled, the performance gap between European and U.S. stock markets has narrowed this year. Low volatility, environmental, social and governance (ESG), value, and multi-factor exposures outperformed the broader market last week, while the top quintile momentum basket was the weakest performer.