The White House submitted a record $1.5 trillion defense budget proposal for fiscal year 2027, the largest military spending request in United States history, citing the operational demands of the ongoing Iran campaign and the urgent need to rebuild precision munitions stockpiles significantly depleted during Operation Epic Fury since February 28.
The proposed budget includes substantial allocations for Lockheed Martin's F-35 Joint Strike Fighter program, with the Pentagon requesting 48 additional aircraft above the baseline multi-year procurement schedule. RTX Corporation's Raytheon subsidiary stands to benefit from significant Patriot PAC-3 missile system expansion, advanced medium-range air-to-air missile replenishment, and Tomahawk cruise missile production acceleration. Northrop Grumman is positioned for increased B-21 Raider stealth bomber program funding alongside expanded contracts for its Integrated Battle Command System, which is serving as the real-time command-and-control backbone during the Iran campaign.
Despite the positive structural implications, defense stocks faced a sharp reversal on April 6 as reports of the Islamabad Accord ceasefire framework emerged. Lockheed Martin fell approximately 4%, RTX declined 3.5%, and Northrop Grumman retreated over 5%, as investors who had paid elevated premiums for war-driven earnings acceleration reduced exposure on the possibility of diplomatic resolution. General Dynamics and Boeing's defense segment also declined in sympathy.
The sector's valuation had become stretched by historical measures. The S&P 500 Aerospace and Defense sub-index was trading at approximately 32 times 12-month forward earnings before the April 6 pullback, compared to the broader S&P 500 multiple of roughly 20 times. Kitco noted that defense stocks had surged more than 150% between 2020 and 2025, creating a base vulnerable to any reduction in the conflict premium.
Analysts with a medium-to-long term view argue that the structural defense spending supercycle is independent of whether a ceasefire is reached. The $1.5 trillion budget reflects bipartisan consensus in Washington that the United States must rebuild stockpiles, accelerate next-generation weapons development, and strengthen deterrence — objectives that persist regardless of the Iran war's near-term resolution. General Dynamics reported strong Q1 backlog data, and Huntington Ingalls Industries noted increased Navy shipbuilding inquiry for Arleigh Burke-class destroyers and Virginia-class submarines with decade-long lead times.
The defense budget also includes historically large funding for cybersecurity and electronic warfare capabilities, benefiting Leidos, CACI International, SAIC, and Palantir Technologies, which have embedded AI-driven defense intelligence platforms across multiple military commands. Palantir's AIP system is being credited with improving target identification and logistics coordination during the campaign, potentially accelerating the company's commercial and government contract pipeline well beyond the current conflict's duration.