$SNOW

Stock market today: S&P 500 and Nasdaq rise, oil pares gains on report of US-Iran breakthrough

US stocks rose Thursday after Axios reported a US-Iran negotiators’ breakthrough on a 60-day memorandum of understanding for a peace deal, though President Trump approval is still required. S&P 500 gained 0.4% and Nasdaq 0.5%, while Dow was flat. Oil eased; Brent ~ $93 and WTI fell below $90. Tech earnings from Snowflake, Marvell and HP supported AI sentiment; PCE rose 0.4% in April.

Original reporting
Published May 28, 2026, 3:00 PM UTC
Analysis
alphai AI DeskAI-generated
Added to alphai May 28, 2026, 3:32 PM UTC. Informational, not investment advice.
How this was made
alphai summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
Stock market today: S&P 500 and Nasdaq rise, oil pares gains on report of US-Iran breakthrough — source image
Decision brief

The 30-second read

$SNOWBullishMed
01

Why it matters

Progress toward a peace deal reduces immediate tail risk, helping equities rebound; simultaneously, AI-related earnings (cloud/chips/computers) support the tech bid, while PCE and jobless claims keep macro/rate uncertainty in focus.

02

Market read

Near-term trading is driven by (1) geopolitical headline risk easing and (2) AI earnings boosting tech sentiment, partially offset by ongoing rate sensitivity from PCE.

03

What to watch

PCE inflation came in only slightly cooler than expected, so rate sensitivity remains; geopolitical headlines can dominate intraday regardless of AI earnings strength.

Relevance 7/10Novelty 6/10Timing: today’s session rebound tied to US-Iran negotiation progress and after-bell AI earnings

Background

The article cites Axios that US and Iranian negotiators reached a 60-day memorandum of understanding after renewed strikes near the Strait of Hormuz; it also notes tech earnings strength after the bell.

Company-level read

Ticker impact

$SNOWBullishMedium confidence
Context

Snowflake reported strong earnings and announced a $6B AWS deal, driving a >30% stock move and AI-spend read-through.

Expected impact

Bullish bias near-term; elevated volatility likely around AI/cloud read-through.

Evidence & confidence

The article attributes the standout move to both earnings strength and a specific $6B AWS deal, which typically supports momentum and multiple expansion.

$MRVLBullishLow confidence
Context

Marvell reported strong earnings after the bell, reinforcing AI-driven demand for chips and supporting tech risk appetite.

Expected impact

Mild-to-moderate upside bias; follow-through depends on broader tech/semis sentiment.

Evidence & confidence

The article confirms strong earnings but provides no detailed guidance/metrics, limiting precision on magnitude and duration.

$HPBullishLow confidence
Context

HP reported strong earnings, supporting the AI trade narrative tied to cloud, chips, and computers.

Expected impact

Supportive near-term tone; likely correlated with broader tech moves rather than company-specific incremental news.

Evidence & confidence

The piece mentions strong earnings but lacks deal details or forward guidance specifics.

$AMZNBullishLow confidence
Context

Amazon Web Services is named as the counterparty in Snowflake’s announced $6B deal, linking AMZN to AI/cloud spending momentum.

Expected impact

Limited direct price impact expected; more likely sentiment read-through than a standalone catalyst.

Evidence & confidence

The article frames the deal as Snowflake’s headline; it does not quantify AMZN revenue impact or provide AWS-specific incremental guidance.

Market effects

Geopolitical de-risking (US-Iran talks progress) supports broader risk assets; AI earnings reinforce the AI/cloud/chips/PC complex.

Primarily US market sentiment; reduced immediate Strait of Hormuz risk can ease energy-linked pressure on equities.

Oil price reaction (Brent/WTI off highs) can influence global inflation expectations and risk premia.

Counterpoint

Oil pared gains may not mean the geopolitical risk is resolved; any renewed strike risk could quickly reverse the risk-on move.

Key entities

  • US-Iran negotiators

    Reported breakthrough on a 60-day memorandum of understanding, pending President Trump approval.

  • Snowflake

    Reported strong earnings and announced a $6B AWS deal; stock up more than 30%.

  • Marvell

    Reported strong earnings, reinforcing AI chip demand narrative.

  • HP

    Reported strong earnings, supporting AI-driven computer demand expectations.

  • Amazon Web Services (AWS)

    Counterparty in Snowflake’s $6B deal, linking AWS to AI/cloud spending momentum.

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