Stock market today: Dow, S&P 500, Nasdaq futures fall after Iranian supreme leader says enriched uranium must stay in c

May 21, 2026
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US stock futures fell on Thursday premarket after Iran’s supreme leader issued a directive that the country’s near-weapons-grade uranium should not be sent abroad, raising doubts about the progress on peace talks between the US and Iran.

Futures attached to the Dow Jones Industrial Average (YM=F) fell 0.2%, while those on the benchmark S&P 500 (ES=F) also fell 0.2%. Contracts on the tech-heavy Nasdaq 100 (NQ=F) dropped 0.4% following a winning day on Wall Street.

Oil prices rose in the early morning hours, with Brent crude oil (BZ=F) rising back over $106, as the US and Iran were deadlocked on a peace deal. President Trump suggested that a resolution with Iran could be around the corner and said on Wednesday that he’s willing to wait “a couple days” while Iran reviews the US’s latest peace proposal.

Meanwhile, investors continued to assess Nvidia’s (NVDA) earnings that landed after the bell on Wednesday, beating expectations on the top and bottom lines. The AI giant also issued an upbeat forecast for chip sales, but investors had hoped for an even stronger signal of demand. Nvidia shares were flat in early morning trading.

Shortly after Nvidia results landed, SpaceX (SPAX.PVT) filed its S-1 registration statement with the Securities and Exchange Commission. The document offered a rare public view into the company’s financials ahead of its road show with investors planned for June.

Earnings season continues to wrap up this week, with Walmart (WMT), Ross Stores (ROST), Workday (WDAY), and Zoom Communications (ZM) set to report results Thursday.

LIVE 3 updates

  • Quantum computing stocks jump on a report that the US will grant $2 billion in awards, take equity stakes

    The Trump administration is reportedly working on deals with nine quantum-computing companies, where the US will award $2 billion in grants in exchange for equity stakes, ‌according to the Wall Street Journal.

    According to the report, the Commerce Department will give IBM (IBM) a $1 billion package, while GlobalFoundries (GFS) will receive $375 million. D-Wave Quantum (QBTS), Rigetti Computing (RGTI) and Infleqtion (INFQ) ‌will receive $100 ⁠million each, the report said, while Diraq could receive $38 million.

    The news sent shares of the companies listed much higher in premarket trading on Thursday. IBM stock jumped 6%, while GlobalFoundries stock leaped 15% higher. Shares of D-Wave rose more than 16% and Rigetti stock gained 14%.

    Quantum computing uses quantum mechanics to solve complex computational problems, promising to process data exponentially faster than traditional computers. But it’s still a relatively nascent industry that’s finding its way from research labs to commercial applications.

    Read more here.

  • Walmart Q1 earnings meet expectations as e-commerce sales surge

    Walmart (WMT) stock fell 2% in premarket trading after reporting first quarter results that were in line with Wall Street’s expectations but a second quarter outlook that came in a bit light.

    Yahoo Finance’s Brooke Dipalma reports on the quarter:

    In the first quarter, the big box retailer posted same-store sales growth of 4.1% in the US, above the 3.85% growth Wall Street analysts expected, according to Bloomberg consensus estimates. Higher foot traffic, ticket sizes, and 26% growth in e-commerce sales drove results.

    Revenue grew 7.3% to $177.8 billion, more than the $174.8 billion the Street anticipated. Walmart reported adjusted earnings of $0.66, in line with estimates. Both metrics were above the forecast Walmart shared in the prior quarter.

    The company gained share across all categories again, including grocery, health and wellness, and merchandise and income cohorts, led by high-income shoppers.

    Read more here.

  • Oil pulls up following plunge over US-Iran back-and-forth

    Bloomberg reports:

    Oil inched higher after plummeting on Wednesday, as President Donald Trump said the US is in the “final stages” with Iran.

    Brent (BZ=F) neared $106 a barrel after sliding 5.6% on Wednesday, while West Texas Intermediate (CL=F) was around $99. Trump’s comments to reporters stoked hopes for a deal between Washington and Tehran that would see a near-term restart of energy flows through the critical Strait of Hormuz.

    Conflicting headlines about the status of negotiations have buffeted oil this week, and prices are still more than 40% higher than when the war started at the end of February. Still, traders have consistently priced in the possibility of an abrupt deescalation, including a deal under which Iran reopens the key shipping lane and unlocks millions of barrels stuck in the Persian Gulf.

    Even if the Iran conflict ended immediately, Middle East oil flows would not fully recover until well into 2027, Abu Dhabi National Oil Co. Chief Executive Officer Sultan Al Jaber said Wednesday. The Strait of Hormuz closure was the most severe supply disruption on record, he said.

    Read more here.

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