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As tensions in the Middle East escalate, U.S. defence stocks have experienced a notable decline, defying the traditional trend of rising share prices during conflicts. The NYSE Arca Defence index, which encompasses 34 U.S. companies across various market capitalisations, plummeted by nearly 8% in March, contrasting sharply with a 5% dip in the broader S&P 500 index. This shift indicates that investors are reassessing their positions rather than expecting a sustained uptick in defence spending, despite the ongoing geopolitical unrest.
A Shift in Investor Sentiment
The recent downturn in defence shares signals a significant change in investor sentiment. In February 2022, following Russia’s invasion of Ukraine, defence stocks surged by approximately 12%. However, as the conflict with Iran intensified, particularly after the U.S. and Israel initiated military actions in late February, investors began to unwind their positions. David Bianco, the Americas Chief Investment Officer at DWS, noted that much of the “conflict premium” that had inflated stock valuations had now been priced in.
Bianco remarked, “A lot of conflict premium was in their valuations,” highlighting the market’s initial enthusiasm that stemmed from expectations of increased military action. In fact, he had already begun to reduce his exposure to defence stocks before the latest conflict erupted, suggesting that the peak may have been reached.
European Defence Sector Also Faces Declines
Mirroring the trends in the U.S., the European defence sector suffered a significant setback, with an 11% decline in March marking its steepest monthly loss since the onset of the pandemic. This downturn is largely attributed to fears of an energy crisis stemming from the ongoing conflict. European governments had previously ramped up rearmament efforts following Russia’s actions, but the recent selloff reflects a broader market anxiety over economic stability.
Earlier this year, former President Donald Trump proposed a US$1.5 trillion military budget for 2027, a staggering increase from the US$901 billion allocated for 2026. Yet, analysts express skepticism about Congress approving such an ambitious budget. Bernstein analyst Douglas Harned commented, “Nothing that has happened so far suggests that a $1.5 trillion 2027 defence budget could be exceeded.” The present conflict may not yield the anticipated upside for defence stocks.
Earnings Growth Expectations Remain Muted
Despite the Pentagon’s initiatives to ramp up production and replenish depleted stockpiles of missiles and ammunition, market reactions have been tepid. Analysts point to long production cycles and capacity constraints that hinder rapid output increases. As of the end of March, earnings growth expectations for 2026 hovered around 12%, a decline from the 15% forecast at the beginning of the year for major defence contractors like General Dynamics, Lockheed Martin, and Northrop Grumman.
Wells Fargo’s Sameer Samana emphasised that “the conflict would need to last longer, or expand materially, for [earnings] estimates to move higher.” This outlook underscores the cautious sentiment among investors, who are wary of the implications of prolonged military engagements.
Supply Chain Issues and Policy Pressures
The defence sector’s challenges extend beyond mere valuations. Analysts have pointed out that funding for defence firms often gets redirected towards immediate operational needs rather than long-term modernisation projects during times of conflict. Richard Safran, a senior analyst at Seaport Research Partners, highlighted that the Trump administration’s emphasis on prioritising production over shareholder returns has contributed further to uncertainty around capital allocations.
As the U.S. approaches critical budget decisions, with key spending details expected to be revealed on April 21, the medium-term outlook for the defence sector remains precarious. Investors are closely monitoring how these budgetary choices will shape the financial landscape for defence contractors.
Why it Matters
The current downturn in defence stocks illustrates the complexities of investor behaviour in response to geopolitical conflicts. While military tensions often lead to a surge in defence spending, the reality of production constraints, shifting policy priorities, and the potential for budgetary limitations complicate the narrative. As investors recalibrate their expectations, the implications of these trends could reverberate across the broader market, influencing not only defence stocks but also the economic landscape at large.
