European defense stocks retreated sharply at the start of the week, extending a multiweek slide and bringing the sector close to its lowest level in two months. The pullback follows renewed diplomatic efforts to secure Ukrainian support for a US-backed peace plan, prompting investors to reconsider the sector’s wartime risk premium after nearly three years of outperformance.

A Goldman Sachs basket tracking the region’s defense names is now down roughly 24% from its early October peak. Market sentiment has shifted quickly as traders begin pricing the possibility — however incomplete — of a significant easing of geopolitical tensions in Eastern Europe.

Market Sentiment Turns as Peace Discussions Gain Momentum

The latest decline in defense shares reflects a growing belief among some investors that the Russia-Ukraine conflict could move closer to resolution in the coming months. Graeme Bencke, a fund manager at Amati Global Investors, noted that actions by the Trump administration aimed at reducing tensions with Moscow have changed the tone in markets.

According to Bencke, parts of the investor base now view the conflict as potentially entering a late stage, prompting a reduction in exposure to the defense sector, which has been a major beneficiary of war-related demand. That reassessment has loosened valuations that had become stretched after a persistent rally dating back to February 2022.

Yet the market’s shift is far from uniform. Even as shares retreat, many institutional investors remain cautious about assuming a swift or definitive end to hostilities, particularly as negotiations face significant political and security hurdles.

Defense Rally Cools but Structural Spending Trends Remain Firm

The recent pullback follows an extraordinary period of gains for European defense companies. Since Russia’s invasion of Ukraine, governments across Europe have dramatically accelerated military procurement, reversed years of budget austerity, and committed to long-term capability upgrades.

From ammunition shortages to requirements for air and missile defense, the conflict exposed substantial strategic gaps across the continent. Those gaps will not disappear with the signing of any peace agreement. Bencke emphasized that Europe’s recalibrated stance on security is likely permanent, reflecting both geopolitical uncertainty and shifting US priorities within NATO.

This view is echoed by Mediobanca analysts led by Alessandro Pozzi, who stated that a comprehensive peace deal should not be expected before late 2026. As a result, defense spending trajectories across major European economies remain upward, anchored by multi-year procurement cycles that extend well beyond short-term diplomatic developments.

Investors Confront a More Complex Geopolitical Equation

While the market is responding to the prospect of reduced geopolitical risk, the long-term implications for defense equities are more nuanced. Many contracts in the sector are multi-year and state-backed, providing resilience even when sentiment cools. At the same time, any unexpected breakdown in peace negotiations or renewed escalation would likely trigger a rapid reversal in the current selloff.

Heading into year-end, investors will closely monitor diplomatic movements, US-EU coordination, and evolving NATO commitments as they reassess risk exposures. The sector may be entering a phase characterized not by explosive wartime rallies but by steadier, structurally supported demand — a shift that could redefine European defense valuations in 2026 and beyond.