Stock market today: S&P 500, Dow, Nasdaq rise, oil falls amid US-Iran talks

May 27, 2026
stock-market-today:-s&p-500,-dow,-nasdaq-rise,-oil-falls-amid-us-iran-talks

Updated 1 min read

US stocks rose early on Wednesday as AI momentum continued to drive tech stocks, while oil dropped sharply after Iranian state media reported that a draft memorandum between the US and Iran said Tehran would reopen the Strait of Hormuz.

The Dow Jones Industrial Average (^DJI) and Nasdaq Composite (^IXIC) each climbed by about 0.2%, while the benchmark S&P 500 (^GSPC) traded up by 0.1%.

On Tuesday, the S&P 500 (^GSPC) and Nasdaq Composite (^IXIC) both rose to record highs. Optimism that the US and Iran could reach a lasting peace agreement somewhat soon sent prices falling after Iranian state media said a memorandum reviewed by the news agency said Iran would allow shipping through the Strait of Hormuz to resume and the US would remove its naval blockade.

A conclusive end to the US-Iran war, however, remains murky, with Secretary of State Marco Rubio cautioning on Tuesday that any deal would likely take a few days to formalize. In the meantime, the Strait of Hormuz remains mostly shut to commercial traffic.

Nevertheless, crude oil prices fell, with Brent (BZ=F) falling to $93 per barrel and West Texas Intermediate (CL=F) trading below $90 per barrel.

Earnings season continues to wrap up this week, with Marvell Technology (MRVL), Salesforce (CRM), Snowflake (SNOW) set to report their results after the closing bell on Wednesday. Abercrombie & Fitch (ANF) beat estimates on earnings per share but missed on revenue.

LIVE 8 updates

  • US stocks turn into the green at the opening bell

    The US stock market turned into the green on Wednesday as the AI trade continued to roll forward and Iranian state media reported that a US-Iran deal would include restored shipping through the Strait of Hormuz, stoking peace hopes.

    The Dow Jones Industrial Average (^DJI) picked up 0.3%, while the S&P 500 (^GSPC) and Nasdaq Composite (^IXIC) both picked up less than 0.1%.

    US-Iran peace hopes sent oil prices plunging after Iranian state media said a draft memorandum included provisions stating Iran would allow shipping through the Strait of Hormuz to resume, and the US would remove its naval blockade. US oil fell below $90 per barrel on the news.

    Abercrombie & Fitch (ANF), reporting before the bell, beat estimates on earnings per share but missed on revenue. Marvell Technology (MRVL), Salesforce (CRM), and Snowflake (SNOW) are set to report after the closing bell.

  • Jake Conley

    US oil falls below $90 as traders look for movement on peace negotiations

    Oil prices fell sharply on Wednesday morning as traders looked for momentum in US-Iran negotiations, with hopes spurred by reports from Iranian state media that such a deal would reopen the Strait of Hormuz.

    Futures on Brent crude (BZ=F), the international benchmark, fell 4.2% to trade below $93 per barrel, while those on US benchmark WTI crude (CL=F) stumbled by a steeper 5.7% to trade below $89.

    Oil prices dropped precipitously at around 9 a.m. ET after Iranian state media, which is understood to be tightly controlled by the regime, reported that a draft memorandum between the US and Iran said Iran would restore shipping through the Strait ⁠of Hormuz to ⁠pre-war levels within 30 days, while the ⁠US ⁠would withdraw ⁠its military from the area and lift its ‌naval blockade.

    Prices had ticked up on Monday and Tuesday after the US said it launched a new round of airstrikes in southern Iran, the US military’s first major action against the Islamic Republic since the two nations initially agreed to a ceasefire.

    Without further escalation — the US called the strikes “defensive” — traders have swung their focus back to President Trump’s announcement over the weekend that Washington and Tehran are close to agreeing on terms to restart peace negotiations, with a full ceasefire on all fronts and a reopening of the Strait of Hormuz as preliminary conditions.

    “The markets are just waiting for something tangible now when it comes to a deal between the US and Iran,” Capital.com analyst Kyle Rodda wrote in a client note.

  • Ines Ferré

    Lululemon stock rises on proxy battle agreement with founder Chip Wilson

    Lululemon (LULU) stock popped 3% on Wednesday morning after the company and its founder, Chip Wilson, reached an agreement to settle a long-running dispute over the company’s board leadership.

    The deal removes a potential obstacle ahead of the company’s shareholder meeting in June. One of the points of contention in the proxy battle between Wilson and the company’s board was the selection of Nike (NKE) veteran Heidi O’Neill to take the CEO helm later this year.

    “Lululemon now has a clear path forward for our incoming CEO, Heidi O’Neill, and our leadership team, as we continue to advance our strategies to foster strong brand health, reaccelerate growth, and deliver enhanced value for our shareholders,” Lululemon’s executive chair Marti Morfitt said on Wednesday morning.

  • Ines Ferré

    SK Hynix joins Micron in $1 trillion club as AI memory chip rally accelerates

    SK Hynix (000660.KS) shares jumped more than 12% on Wednesday, pushing the memory chip maker to a $1 trillion valuation in Asia just hours after peer Micron Technology (MU) crossed the same milestone on Tuesday.

    Wall Street had anticipated SK Hynix would join the club as the last of the industry’s “big three” to reach the valuation after Samsung Electronics (005930.KS) first crossed the mark earlier this month .

    May has become a month of trillion-dollar milestones for the memory chip giants, as soaring demand has tightened supply and created a key bottleneck in the AI trade.

    SK Hynix, Micron, and Samsung have become major beneficiaries of the AI boom as demand for High-Bandwidth Memory (HBM) chips has surged alongside AI training and inference workloads. Their production is allocated through 2026.

  • Oil falls as Iran peace talks continue despite strikes

    Bloomberg reports:

    Oil dropped on optimism that the US and Iran will reach a peace deal despite fresh hostilities and uncertainty over the vital Strait of Hormuz.

    Brent (BZ=F) fell to near $98 a barrel after rising almost 4% on Tuesday, while West Texas Intermediate (CL=F) was around $92. US Secretary of State Marco Rubio has cautioned that any peace pact would likely take a few days to finalize. Meanwhile, US forces hit targets near the strait, while the Islamic Revolutionary Guard Corps said it fired at multiple US aircraft after they entered Iranian airspace.

    The strait, the key waterway through which a fifth of the world’s oil and liquefied natural gas flowed during peacetime, remains essentially shut, subject to blockades by the US and Iran. However, at least two non-Iranian supertankers exited the chokepoint on Tuesday, the first time in a week that 4 million barrels of unsanctioned crude have been seen crossing.

    In the US, President Donald Trump will convene his Cabinet at the White House Wednesday, moving from the originally planned location at the presidential retreat Camp David due to weather. This comes as key sticking points remain in the talks with Iran — including Tehran’s $24 billion in frozen assets and its reluctance to allow free passage through the strait.

    Read more here.

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