U.S. Defense Stocks Plunge Over 30% as Market Prices in Democratic Sweep of Congress
nashnova research
Major U.S. defense stocks have fallen 20%–36% from their highs as investors price in a Democratic midterm sweep and the likely derailing of Trump's $500 billion military-spending expansion — even as global defense demand keeps rising.
How far have defense stocks fallen — and how wide is the gap with the market?
The iShares U.S. Aerospace & Defense ETF dropped 16% from early July to mid-October, while the S&P 500 gained 3.5% over the same period.
Lockheed Martin is down over 20% from its March high; Northrop Grumman and L3Harris have fallen 35% and 36%, respectively.
This means → the market is not selling "weaker defense demand." It is selling "the political will to spend may disappear" — conflicts are escalating globally, yet the stocks keep falling.
Why would a Democratic Congress hurt defense stocks?
Prediction platform Kalshi shows the market-implied probability of Democrats retaking both chambers rose 20 percentage points between July and October — almost in lockstep with the defense-stock decline.
In January, Trump proposed raising the annual defense budget from $1 trillion to $1.5 trillion to build a "dream military," but the plan depends on Republican control of Congress.
In plain terms = whether military spending rises hinges not on whether wars are fought, but on who signs the checks in Congress. A Democratic majority would redirect resources toward non-defense priorities, dragging the expansion into a broader fiscal negotiation.
Which programs and stocks face the most risk?
Analyst Robert Stallard notes that projects closely tied to Trump's personal brand carry the highest risk — the "Golden Fleet" battleship program and the "Golden Dome" space-based missile-defense system top the list.
"Anything with Trump's name or the word 'golden' on it could be at risk."
Small-cap defense stocks have been hit even harder than the prime contractors. This reflects political-risk pricing spreading from industry leaders down the entire supply chain.
Why has the bipartisan consensus on defense broken down?
Defense Secretary Pete Hegseth's relationship with Congress has deteriorated over the Iran conflict; his refusal to provide detailed cost accounts has angered lawmakers in both parties.
Byron Callan of Capital Alpha Partners says Democrats would not slash defense outright but would challenge order sizes for major programs like the F-35 and the Sentinel ICBM.
This means → the risk is not "cutting the budget" but "gatekeeping project by project" — the top-line number may hold, but the money would arrive far more slowly.
What is driving the short-term bounce, and does the long-term case still hold?
Several defense stocks rebounded this week as investors expect strong Q3 earnings next week; concern over AI-infrastructure overspending also pushed some capital out of tech and into aerospace and defense.
Longer term, Cantor Fitzgerald argues that ongoing conflicts are eroding U.S. deterrence, and mature defense firms stand to benefit as the probability of larger-scale conflict rises.
But a real-world bottleneck remains: years of backlogged orders are still being worked through, and allies' urgent need to replenish ammunition has not translated into investor confidence. In plain terms = the orders are on the books, but production cannot keep up — earnings recognition takes time.
After the midterms — what is the outlook for defense?
Baron Capital portfolio manager Randy Gwirtzman argues the market's election reaction involves a "misjudgment" — the idea that "a Democratic win means defense is destroyed" is a misread.
This means → the current drawdown already embeds the most pessimistic political scenario; if the election result beats expectations, the room for a valuation recovery is actually wider.
The central question: under the twin constraints of political uncertainty and production bottlenecks, can the defense sector find a new pricing anchor after the midterms?
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