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Global Markets React to U.S. Midterm Election Results and Potential End to Iran War

Oil and chip stocks fell while solar shares rose after Democratic wins in the U.S. midterms led investors to anticipate a de-escalation of the U.S.-Iran war.

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By The Plain RecordUpdated November 5, 2026 at 12:20 AM EST
Published November 4, 2026 at 9:35 PM EST

The short answer

Oil and chip stocks fell while solar shares rose after Democratic wins in the U.S. midterms led investors to anticipate a de-escalation of the U.S.-Iran war.

Updates (1)

  • Update — November 5, 2026 at 12:20 AM EST: Iran’s top negotiator responded to the resounding Republican defeat in the midterm elections as proof of American voters rejecting President Trump’s war against his country and the associated economic burden. “Conscience or the cost of living, Americans said NO TO WAR, and we endorse this message,” Mohammad Bagher Qalibaf, the speaker of Iran’s Parliament who…, In Article Audio Player
Global Markets React to U.S. Midterm Election Results and Potential End to Iran War

The Facts

Who
U.S. President Donald Trump, Vice President JD Vance, Democratic Party candidates, and global investors
What
Market reaction to U.S. midterm election results
When
Thursday, November 5, 2026
Where
Global markets including Singapore, Tokyo, South Korea, Taiwan, and the United States
Why
Hopes for an end to the U.S.-Iran war and expectations of tougher data center regulations following Democratic election victories.

Global energy and technology markets shifted on Thursday, November 5, 2026, following U.S. midterm election results. The outcome led to a decline in oil prices and chipmaker stocks while lifting solar energy shares and broad stock indexes on expectations of shifting federal policy and a potential resolution to the U.S.-Iran war.

The market response follows Tuesday's elections. On Wednesday, President Donald Trump noted the war's role in the Republican defeat, while Vice President JD Vance stated on social media, "The reason we lost is the war." Investors reacted by betting that Trump, facing a Democratic Congress, would be less likely to escalate the war with Iran.

Brent crude futures fell nearly 9% overnight to below $100 a barrel, contributing to a 20% drop for the week. In Asia, South Korea’s KOSPI index fell 4% and Taiwan’s benchmark declined 1.8%, driven by a sell-off in semiconductor and data center equipment suppliers. Conversely, the S&P 500 closed up 1.6% and European shares reached a two-month high, aided by a rally in bonds that lowered the 10-year U.S. Treasury yield to 4.87%.

For the technology sector, the impact is centered on the artificial intelligence and data infrastructure industries. The victory of Democratic candidates in Georgia and Texas who campaigned for moratoriums on data center construction suggests a shift toward stricter regulation. While analysts cited by Reuters do not expect long-term demand for chips to fall, they do expect a temporary slowdown in the construction and equipping of the facilities.

In the energy sector, solar supply chain companies saw the largest stock gains as markets anticipated Democrats boosting support for renewables. Investors will now monitor the transition of power in January 2027 to see if lawmakers introduce formal regulatory changes for data centers or new subsidies for the solar industry. In the short term, the market focus remains on whether oil prices maintain their lower levels through the end of the trading week on November 6.

Timeline of what happened

Key dates and decisions, in the order they occurred.

  1. November 3, 2026

    U.S. midterm elections held

  2. November 4, 2026

    Trump and Vance attribute losses to U.S.-Iran war

  3. November 5, 2026

    Oil and tech stocks decline in Asian morning trade

Summaries are written by The Plain Record to state the facts of a story plainly and without political slant. Drafted with AI assistance and checked against the source record before publication. See how we report, or report a correction.

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Questions readers ask

What happened: Global Markets React to U.S. Midterm Election Results and Potential End to Iran War?

Global energy and technology markets shifted on Thursday, November 5, 2026, following U.S. midterm election results. The outcome led to a decline in oil prices and chipmaker stocks while lifting solar energy shares and broad stock indexes on expectations of shifting federal policy and a potential resolution to the U.S.-Iran war.

Who is involved?

U.S. President Donald Trump, Vice President JD Vance, Democratic Party candidates, and global investors

When did this happen?

Thursday, November 5, 2026

Where did this happen?

Global markets including Singapore, Tokyo, South Korea, Taiwan, and the United States

Why does this matter?

Hopes for an end to the U.S.-Iran war and expectations of tougher data center regulations following Democratic election victories.