Defense Stocks Slide After Democrats Win Congress

Shares of major U.S. and European defense contractors fell in premarket trading following the midterm election results.

Updated on Nov. 4, 2026 in Military

Defense Stocks Slide After Democrats Win Congress

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Defense stocks fell in premarket trading after Democrats won majorities in both chambers of Congress. Lockheed Martin, Northrop Grumman and RTX Corp each fell more than 2%, while European firms Rheinmetall, BAE Systems, Thales and Leonardo also declined.

Why it matters

Analysts say the shift in congressional control could weigh on U.S. military spending and dent contractor demand. Control of Congress will shape leverage over the eventual defense funding outcome.

Trump's budget proposal seeks $1.5 trillion in defense spending for fiscal 2027, while the House advanced a roughly $1.15 trillion defense bill in July. The final figure remains unresolved as Congress's new composition takes shape.

The players

Lockheed Martin

Lockheed Martin is a major U.S. aerospace and defense contractor known for producing advanced fighter aircraft and missile systems.

Northrop Grumman

Northrop Grumman is a large American defense company that builds aircraft, space systems and military electronics for the Pentagon.

RTX Corp

RTX Corp is a major American aerospace and defense firm formed from the merger of Raytheon and United Technologies, supplying missile and aviation systems.

Rheinmetall

Rheinmetall is a German defense manufacturer known for producing armored vehicles, ammunition and military equipment for European armed forces.

BAE Systems

BAE Systems is a British multinational defense and aerospace company that supplies military platforms and electronics to governments worldwide.

The details

Shares of Lockheed Martin, Northrop Grumman and RTX Corp fell more than 2% in premarket trading, alongside declines at European peers including BAE Systems, which dropped 5% in the U.K. The sell-off followed Democrats' midterm wins in both chambers of Congress.

November 4: Midterm election results gave Democrats majorities in both chambers, triggering the premarket sell-off.
July: The House advanced a roughly $1.15 trillion defense bill.
Earlier this year: President Trump released a $1.5 trillion fiscal 2027 defense budget proposal.

Roadmap

Defense spending is set each year through the National Defense Authorization Act, which Congress negotiates annually. A shift in congressional control can reshape how the final figure is negotiated against the White House's proposed budget.

Shifts in defense spending can affect the broader budget and the companies that supply military equipment. Readers with retirement or index-fund holdings may see changes in defense sector valuations as Congress finalizes funding.

The takeaway

Congressional control shapes the defense budget, and market reactions like this one reflect expectations about how that balance will play out. Watching the final appropriations decisions will clarify the actual spending path.