Oil surged nearly 7% after US forces seized an Iranian‑flagged cargo vessel over the weekend, and US stock futures rose early Tuesday as investors waited for further developments between Washington and Tehran. The market remained cautious as energy moves and sector shifts offset a still‑firm earnings backdrop.

Markets react to weekend escalation

US equity futures pushed higher in early trading as investors sought clarity on developments between Washington and Tehran. The move followed a volatile Monday session in which major benchmarks finished mixed amid renewed geopolitical tension.

The S&P 500 closed down 0.24% at 7,109.14 on Monday, while the Nasdaq Composite slipped 0.26% to 24,404.39, ending a 13-day winning run. The Dow Jones Industrial Average was essentially flat, losing 4.87 points to finish at 49,442.56. Small-cap stocks bucked the trend: the Russell 2000 rose 0.58% to a record close of 2,792.96 and notched an intraday high during the session.

Some portfolio managers said the market is trying to balance headline risk from the Gulf with a still-firm earnings backdrop and solid economic data that have supported valuations.

What happened over the weekend

Late last week and through the weekend, tensions between the United States and Iran escalated after US forces fired on and seized an Iranian-flagged cargo vessel in the Gulf of Oman, according to US statements. The US said it now has custody of the ship and is inspecting its cargo.

Tehran declined to join another round of peace talks that the US had planned to host in Pakistan. Iranian state media said vessel traffic in the Strait of Hormuz was restricted again after an earlier announcement that the waterway had reopened.

Oil jumps, then swings on ceasefire headlines

Energy markets reacted sharply to the weekend flare-up. On Monday, West Texas Intermediate crude futures jumped, settling up 6.87% at US$89.61 a barrel, while Brent crude climbed 5.64% to US$95.48. Higher oil pressured sectors sensitive to energy costs and raised concerns about inflationary spillovers.

By early Tuesday, futures trading had calmed somewhat as reports circulated that Washington and Tehran were discussing a temporary halt in hostilities, helping ease some pressure on oil and sending US stock futures higher.

Sector implications and winners

  • Software and tech-related names showed resilience; the iShares Expanded Tech-Software Sector ETF (IGV) climbed more than 1% during the session, reflecting renewed buying in software stocks.
  • Energy firms saw the biggest immediate reaction to the spike in crude prices, with sector-sensitive names under pressure on higher input costs.

Related Articles

Analysts say the S&P 500's strong earnings could help cushion the market from short‑term headline shocks, even as volatility is likely to persist while geopolitical developments unfold.

This article was created with AI assistance.