The European session closed with a mixed performance, largely overshadowed by escalating US-Iran tensions which ignited a significant rally in crude oil prices, pushing Brent past $100 a barrel. While some indices like the DAX managed marginal gains, the FTSE 100 drifted lower. The overarching theme is a flight to safety, benefiting gold and the US dollar, while placing pressure on risk assets globally. US equity futures reflected this cautious mood, with S&P 500 and Dow futures flat, though Nasdaq futures showed a modest uptick, possibly indicating a contained 'flight to quality' within specific tech names. The US open is set against a backdrop of heightened geopolitical uncertainty, soaring energy costs, and investor reluctance to extend recent record highs in equities.

For the US session opening, the primary risk remains the US-Iran geopolitical situation. Any further developments, rhetoric, or actions could trigger immediate market reactions, especially in oil and safe-haven assets. Investors will also be watching for the low-impact EU Consumer Confidence revision, though its direct market impact is expected to be minimal. The session lacks high-impact economic data, making market sentiment heavily reliant on external events and news flow. Any commentary from Fed officials, though not explicitly scheduled as high-impact, could also be scrutinized for hints on monetary policy in the face of rising energy-driven inflation concerns. Corporate earnings, if any are released and garner attention, could provide stock-specific catalysts.