(For a Reuters live blog on U.S., UK and European stock markets, click (LIVE/) or type LIVE/ in a news window.)
<ul>
<li>Futures down: Dow 0.16%, S&amp;P 500 0.18%, Nasdaq 0.51%</li>
</ul>
April 28 (Reuters) - Futures tracking the benchmark S&amp;P 500 and the tech-heavy Nasdaq 100 indexes fell early on Tuesday as concerns mounted that the U.S.-Iran impasse could keep oil prices elevated for longer.
At 5:36 a.m. ET, Dow E-minis (YMcv1) slipped 11 points, or 0.16%, S&amp;P 500 E-minis (EScv1) were down 12.75 points, or 0.18%, and Nasdaq 100 E-minis (NQcv1) fell 141.25 points, or 0.51%.
A U.S. official said President Donald Trump was unhappy with the latest Iranian proposal ​on resolving the conflict in the Middle East, pouring cold water on hopes for a resolution that had sent the S&amp;P 500 (.SPX) , the Nasdaq 100 (.NDX) and the Nasdaq Composite (.IXIC) to record highs in recent days.
The pullback underscores how strongly the war is shaping market sentiment even during the busiest week of the U.S. corporate earnings season this quarter.
Oil prices are 54% higher than pre-war levels as the crucial shipping route through the Strait of Hormuz remains disrupted.
“The divergence between equity market optimism and the more cautious signals from bond and oil markets reinforces the view that geopolitical developments remain an active and important variable in risk management,” said Ameriprise Financial’s Chief Market Strategist Anthony Saglimbene.
Separately, the Wall Street Journal reported that OpenAI had missed internal targets for weekly users and revenue.
Shares of Oracle (ORCL.N) , whose reliance on OpenAI for its cloud computing ambitions has been under scrutiny, fell 4.6% in the premarket session.
Chip stocks also dropped, with Nvidia (NVDA.O) , AMD (AMD.O) and Arm Holdings (ARM.O) down 1.2%, 3.2% and 6.8%, respectively.
Investors will parse earnings from a bunch of corporate giants on Tuesday, including UPS (UPS.N) , Coca-Cola (KO.N) and General Motors (GM.N) .
UPS was 0.7% higher, while Coca-Cola and General Motors rose nearly 1% each ahead of the results.

The off-table confrontation has escalated! Iran's Foreign Minister presented ceasefire conditions and announced a comprehensive management plan for the Strait of Hormuz. Trump, in turn, decisively canceled his trip to Pakistan and maintained the blockade. Will this "power versus power" contest ignite war or lead to a turning point? Feel free to share your views in the comments section.

The off-table confrontation has escalated! Iran's Foreign Minister presented ceasefire conditions and announced a comprehensive management plan for the Strait of Hormuz. Trump, in turn, decisively canceled his trip to Pakistan and maintained the blockade. Will this "power versus power" contest ignite war or lead to a turning point? Feel free to share your views in the comments section.

With neither side willing to back down, is there any hope for a second round of negotiations?

- U.S. stock futures declined early on April 28, with the Dow down 0.16%, S&P 500 down 0.18%, and Nasdaq down 0.51%, amid concerns about rising oil prices linked to U.S.-Iran tensions.  
- A U.S. official indicated President Trump was dissatisfied with an Iranian proposal, dampening market optimism that had driven indexes to record highs recently.  
- The ongoing geopolitical situation is impacting market sentiment, even as investors await earnings reports from major companies like UPS, Coca-Cola, and General Motors.

Reuters

Occidental Petroleum

General Motors

Coca-Cola Europacific Partners

Oracle

Coca-Cola Bottling

SPDR O&G Ex & Prd

iShares US Oil & Gas Expl & Prod

ProShares Ultra Energy

iShares US Oil Equip & Svcs

SPDR O&G Equip

Defiance Daily Target 2X Long ORCL ETF

SPDR Energy Select

VanEck Oil Refiners ETF

US STOCKS-US stock index futures fall as Middle East stalemate keeps oil risks in focus