The STOXX Europe 600 index posted its strongest performance since mid-April, closing up 2.2% at 623.25 points on May 6. Market momentum accelerated following reports of tangible progress toward a US-Iran peace agreement, significantly reducing geopolitical risk premiums that have weighed on European equities since late February.
Banking and airline stocks led the rally as crude oil prices retreated sharply. Lower energy costs directly improve airline profitability, while reduced regional instability supports broader economic predictability for financial institutions. This single-day surge represented a partial unwinding of accumulated market fear rather than simple speculative enthusiasm.
Momentum continued building through mid-June, with the index reaching record highs between 639.20 and 640.94 points as preliminary diplomatic frameworks took shape. This peak reflects a 2.8% gain from the May 6 close, signaling renewed investor confidence in European growth prospects.
Analysts warn that market stability remains contingent on diplomatic outcomes. Should peace negotiations falter and the Strait of Hormuz remain contested, the index faces potential recurrence of the 10% drawdown experienced earlier in 2026. Notably, capital rotation favored traditional equities over digital assets during this recovery phase.