European stock markets opened in negative territory on Tuesday, with investors digesting a fresh surge in oil prices alongside renewed concerns over potential new tariffs from the Trump administration.

The Milan FTSE MIB led the decline, opening 0.23% lower, while London and Paris benchmarks fell by approximately 0.1%.

This shipping risk has kept energy markets on edge, with up to 68 million barrels of Iranian oil adrift at sea as destination uncertainty persists.

In contrast, Germany’s DAX bucked the broader trend, opening 0.12% higher, though it remains under pressure from the broader regional weakness.

The market move reflects a continuation of the volatility seen in Asian sessions, where a broad selloff was driven by rising energy costs and growing skepticism toward artificial intelligence valuations.

Global equity markets have extended their decline into Monday trading, with European indices opening in negative territory as investors weighed rising energy costs against growing skepticism toward artificial intelligence valuations. The divergence in European performance highlights the fragmented nature of the current risk-off environment, where defensive sectors and energy-heavy indices may outperform growth-oriented peers.

The oil price spike is rooted in persistent geopolitical tensions in the Strait of Hormuz, where Iran has warned oil tankers to use approved routes or face forceful response.

This shipping risk has kept energy markets on edge, with up to 68 million barrels of Iranian oil adrift at sea as destination uncertainty persists. Japan’s continued reliance on oil imports despite the conflict underscores the structural vulnerability of global supply chains to regional disruptions.

Traders are now focused on whether the tariff threats will materialize into concrete policy actions, which could further dampen corporate earnings expectations.