CNBC — 2026-05-30#

Lead Story#

A potential U.S.-Iran truce deal and explosive artificial intelligence earnings propelled the S&P 500 to its ninth consecutive winning week, capping off a banner month for markets despite lingering consumer inflation pressures.

Markets & Economics#

Stocks soared to record highs to close out May, with the S&P 500 advancing 5% and the Nasdaq climbing 8% for the month. The rally was fueled by reports that U.S. and Iranian negotiators reached a truce deal, sending oil prices retreating, though analysts warn that commercial traffic through the Strait of Hormuz may remain permanently hobbled due to geopolitical risks. Meanwhile, domestic economic data revealed that consumers are struggling to absorb inflation; real disposable income fell in both March and April, and the personal savings rate dropped to a dismal 2.6% as Americans slash savings to cope with energy costs. Compounding the pressure on lower-income households, more than 3.5 million people have lost SNAP food benefits following the implementation of President Trump’s sweeping cuts.

Business & Earnings#

Artificial intelligence continues to drive massive corporate beats, with Dell Technologies skyrocketing 32% on Friday—its best session ever—following record revenue growth fueled by AI server demand. Snowflake also saw shares surge 36% after announcing a $6 billion AI compute commitment to Amazon Web Services. In the cybersecurity sector, Okta jumped 30% on strong results, shaking off broader sector fears sparked earlier by Zscaler’s weak guidance. Meanwhile, Meta is aggressively testing AI subscriptions in an attempt to finally monetize a major product outside of its core digital advertising business.

Investing & Commentary#

Warren Buffett’s Berkshire Hathaway is trailing the S&P 500 by 16.3 percentage points—its biggest margin this year—as its lack of AI exposure causes it to drastically lag the tech-heavy rally. For investors looking to ride the current momentum, BofA named Nvidia and Apple as top June picks alongside Toll Brothers and Citigroup. Ritholtz CEO Josh Brown launched a new momentum strategy called Porterhouse, intentionally omitting the “Magnificent Seven” to focus on under-the-radar AI beneficiaries like Ciena. Finally, the Tema Space Innovators ETF has ballooned to $2.6 billion as retail investors clamor for pre-IPO exposure to SpaceX.

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