Stock Markets February 25, 2026

Defense Contractors Slide as Iran-U.S. Nuclear Talks Show Signs of Progress

Shares of major defense firms tumble after Iranian officials signal a hopeful outlook for renewed negotiations in Geneva

By Sofia Navarro LMT LHX NOC GD RTX
Defense Contractors Slide as Iran-U.S. Nuclear Talks Show Signs of Progress
LMT LHX NOC GD RTX

Major U.S. defense contractors saw share prices fall materially on Wednesday after reports that Iran expects a favorable outcome from a third round of nuclear talks with the United States. The market reaction followed comments from Iranian officials and the departure of an Iranian delegation to Geneva, where meetings with U.S. representatives are scheduled.

Key Points

  • Shares of major defense contractors tumbled Wednesday amid reports of optimism in Iran-U.S. nuclear negotiations, with LMT down 4%, LHX down 5.8%, NOC down 5%, GD down 3% and RTX down 3%.
  • An Iranian delegation led by Foreign Minister Abbas Araqchi departed for Geneva; U.S. envoy Steve Witkoff and Jared Kushner are scheduled to meet the delegation there on Thursday.
  • Officials from Iran signaled that a deal could be within reach if diplomacy is prioritized, while the U.S. has increased military capacity in the region amid concerns about possible strikes.

Shares of leading defense contractors dropped on Wednesday as developments in diplomatic talks between Iran and the United States conveyed a more optimistic tone.

Market moves

Lockheed Martin (NYSE:LMT) fell 4% on the day. L3Harris Technologies (NYSE:LHX) registered a 5.8% decline, Northrop Grumman (NYSE:NOC) slid 5%, General Dynamics (NYSE:GD) lost 3%, and RTX Corporation (NYSE:RTX) was down 3%.

Diplomatic developments

The sell-off in defense names coincided with statements from Iranian officials indicating a positive outlook for talks with the United States. Iranian President Masoud Pezeshkian said on Wednesday that Iran expects a good outcome from a third round of negotiations, and an Iranian delegation departed for Geneva.

According to the schedule reported, U.S. envoy Steve Witkoff and Jared Kushner are due to meet the Iranian delegation in Geneva on Thursday. The Iranian delegation is led by Foreign Minister Abbas Araqchi.

Context provided by officials

Pezeshkian said Iran has sought to manage the process "to get out of the no war, no peace situation," according to state media. Araqchi stated on Tuesday that a deal with the United States was "within reach, but only if diplomacy is given priority." Both comments were cited in connection with the latest negotiating round.

Background on negotiations and security posture

The two countries resumed negotiations over Iran's nuclear program earlier this month. Reports noted that the U.S. is building up military capability in the Middle East amid concerns about possible strikes on Iran. On February 19, President Trump said he was giving Tehran about 10 to 15 days to make a deal.

U.S. and Israeli officials regard Iran as seeking a nuclear weapons capability, a position at odds with Iran's assertion that its program is for peaceful purposes only. The reporting notes that Iran has enriched uranium to levels well beyond what is required for power generation and close to the thresholds needed for a bomb.

Implications for markets and sectors

The immediate market response manifested as declines in shares of major defense and aerospace contractors. Investors appeared to react to the prospect that progress in diplomacy could lessen near-term military escalation risks, with direct effects observable in stock price movements among defense firms.


Summary of the situation

  • Defense stocks fell after Iranian officials described the outlook of talks with the United States as positive.
  • An Iranian delegation left for Geneva, where meetings with U.S. representatives are planned.
  • Officials from both sides provided statements indicating cautious optimism, while tensions linked to Iran's nuclear program remain central to the talks.

Risks

  • The outcome of the Geneva negotiations is uncertain; continued diplomatic progress is not guaranteed and could influence defense sector valuations.
  • The possibility of military action remains a factor, as the U.S. was reported to be building up capabilities in the Middle East ahead of potential strikes on Iran.
  • Ongoing disputes over Iran's nuclear activities persist: Iran has enriched uranium to levels beyond civilian power needs and close to bomb-grade thresholds, sustaining geopolitical uncertainty.

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