Lockheed Martin and Northrop Grumman shares tumbled as investors questioned the sustainability of defense sector growth despite escalating Middle East tensions. The sell-off contradicts expectations that wars would boost demand, with analysts citing production bottlenecks as the critical flaw. Companies burned through munitions faster than they could manufacture, delaying profits that won’t materialize for years. RTX’s stock, which surged 50% pre-conflict, fell 10% after reports of the Pentagon using 1,000 Tomahawk missiles in two months—20 times its annual budget allocation. This ‘buy the tension, sell the war’ pattern mirrors past conflicts, where short-term optimism fades as supply chain limits hit. Investors are fleeing defense ETFs, pulling $1bn from the iShares US Aerospace & Defense ETF since the war began, favoring energy and utilities instead.

The decline reflects broader skepticism about defense spending trajectories. Trump’s proposed $1.5tn 2027 budget—50% higher than current levels—faces political hurdles and procurement criticism from the Pentagon. General Dynamics and L3Harris also dipped as analysts warned that demand growth would be capped by limited manufacturing capacity. The administration’s push to involve automakers like Ford in weapons supply chains highlights desperation to offset delays. Meanwhile, European defense stocks fell 9.2% in March, with CSG and Rheinmetall dropping sharply. Analysts question whether peace in Ukraine or the threat of ‘peak defense’ spending could further depress valuations. The irony is stark: companies reporting first-quarter sales gains now face falling shares as operational limits eclipse geopolitical optimism.

The market’s reaction underscores a shift from speculation to pragmatism. While conflicts like Iran’s war and Trump’s budget rhetoric initially spiked defense stocks, investors are now pricing in reality—companies can’t profit without delivery. Raytheon’s missile contracts and Northrop’s B-21 bomber role may offer upside, but only if production scales. With midterm elections looming and procurement overhauls delayed, the sector’s long-term health remains uncertain. Investors are betting that until capacity issues resolve, defense stocks will remain volatile, no matter how many missiles are fired.