Major U.S. stock indices hit new highs fueled by AI-related technology stocks, while oil prices increased due to stalled Middle East negotiations. Alphabet's massive AI funding plan and Anthropic's potential trillion-dollar IPO boosted investor sentiment, though concerns about AI expenses and inflation persist.
After wavering at the open, two of Wall Street's three main stock indices reached fresh record highs on Tuesday before slightly reducing those gains by the close.
This market movement occurred amid broader optimism surrounding AI-related technology equities. Specialist Michael Pistillo was seen at his post on the floor of the New York Stock Exchange on Friday, May 29, 2026. Oil prices also rose on Tuesday, driven by concerns over the lack of progress in negotiations to end the US-Israel conflict with Iran, alongside continued fighting in Lebanon.
Susannah Streeter, chief investment strategist at Wealth Club, noted there was no concrete progress in Middle East negotiations, but investors remained broadly optimistic that a longer-term resolution would be reached. David Morrison of Trade Nation observed that despite oil market volatility, prices stayed near the bottom of their recent range and were well below the US$100 per barrel threshold seen a few weeks ago.
Even a surge in eurozone inflation to 3.2 percent in May, which nearly guarantees an interest rate hike by the European Central Bank later this month, failed to dampen European stock performance on Tuesday. Google's parent company Alphabet announced plans to raise up to US$80 billion through stock issuance to fund a major expansion of its AI infrastructure. Warren Buffett's Berkshire Hathaway committed US$10 billion to this effort.
Jose Torres of Interactive Brokers warned that heavy AI-related expenses are unfolding against an uncertain profitability backdrop. In another development, Anthropic, the creator of the Claude chatbot, revealed it had confidentially filed for an initial public offering that could value the AI firm at nearly one trillion dollars. This news helped propel South Korea's stock market, which has led the AI rally this year, to another all-time high, with Samsung shares climbing more than three percent.
Saxo Markets analyst Neil Wilson summarized the situation, stating that while Iran's geopolitical actions grab attention, the AI trade remains the primary engine driving stock markets. The outlook for US interest rates remains a key agenda item, particularly with the release of jobs data on Friday that could determine whether the Federal Reserve maintains its benchmark rate or increases borrowing costs to combat inflation.
Positive US job openings data released on Tuesday showed open positions at a 23-month high in April, driven by corporate demand for workers. This data provides further nuance to the monetary policy discussion, as strong labor market conditions could influence the Fed's decision-making process in the coming weeks
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