Image Source: WSJ
S&P 500 stocks surged to fresh records on Tuesday as investors welcomed signs that the United States and Iran could soon reach an agreement to reopen the Strait of Hormuz. The potential diplomatic breakthrough sent oil prices sharply lower, eased concerns about inflation, and fueled a broad risk-on rally across Wall Street.
The S&P 500 climbed 1.48% to 7,712.87 around 12:20 p.m. Eastern time, breaking through to a new high. The Dow Jones Industrial Average also reached a record, jumping more than 900 points, while technology shares powered the Nasdaq 100 nearly 3% higher.
S&P 500 Breaks Higher as Hormuz Deal Hopes Lift Markets
Markets rallied after Treasury Secretary Scott Bessent told CNBC that a deal to reopen the strategically important shipping lane could arrive as soon as Tuesday or Wednesday. Bessent said the United States and Iran were moving “towards a more normalized position” during the ongoing war.
The Strait of Hormuz is one of the world’s most important energy corridors. Any prolonged disruption could restrict oil supplies, raise transportation costs, and intensify inflationary pressure for consumers and businesses. The prospect of a reopening therefore delivered immediate relief to investors.
Brent crude, the international benchmark, dropped another 5% to below $80 a barrel, extending a steep decline from Monday. West Texas Intermediate crude also fell about 5%, trading near $75 a barrel. Lower energy prices helped reinforce expectations that inflation could become less difficult to manage.
Powerful Market Gains Spread Across Major Indexes
The rally was broad and decisive by midday. The major US market benchmarks stood at:
- S&P 500: 7,712.87, up 1.48%
- Dow Jones Industrial Average: 54,082.73, up 1.70%, or 904.32 points
- Nasdaq 100: 29,590.62, up 2.83%
The advance marked a dramatic recovery after a volatile July, when investors rotated aggressively out of several artificial intelligence stocks. The latest move suggests that traders are once again willing to add risk, particularly in large technology companies and semiconductor businesses.
Most of the so-called Magnificent Seven stocks climbed during the session. Amazon was a notable exception, slipping 2% despite reaching a $3 trillion valuation for the first time earlier in the week.
Explosive Palantir Rally Leads AI and Chip Stocks
Strong corporate earnings added another layer of support to the market. Palantir shares rocketed 27% after the company reported commercial revenue that exceeded expectations. The performance was described as “otherworldly,” highlighting strong demand for the company’s artificial intelligence and data-analysis platforms.
Chip stocks also rebounded sharply. AMD and Micron each gained 7%, while Broadcom rose 6%. Caterpillar, which supplies equipment used in data-center construction, advanced 6% after beating earnings estimates. Nvidia and Microsoft both gained about 2%.
- Palantir: up 27%
- AMD: up 7%
- Micron: up 7%
- Caterpillar: up 6%
- Broadcom: up 6%
- Nvidia: up 2%
- Microsoft: up 2%
Bret Kenwell, a US investment and options analyst at eToro, said the rebound could represent a “long-overdue rebalancing” in the artificial intelligence trade. He argued that compressed valuations, damaged sentiment, and evidence of growing AI revenue may be encouraging Wall Street to reconsider its retreat from mega-cap technology.
Piper Sandler strategists offered a more cautious view, writing that the bull market was showing stronger participation, lower volatility, and active rotation. However, they said improving market breadth would be necessary for the rally to develop into a sustainable uptrend.
SpaceX Earnings Could Trigger Fresh Volatility
Investors are also watching SpaceX, which is scheduled to release its first-ever earnings report after Tuesday’s closing bell. The company was not profitable last year, and its first wave of insider shares is expected to become available on Thursday.
Those developments could create significant price swings in the stock. As a result, traders may face another volatile stretch even as the S&P 500 and other major indexes remain near record levels.
What the Record S&P 500 Means for Investors
The latest rally shows how quickly markets can respond to changes in geopolitical risk, energy prices, and corporate earnings. For now, investors are celebrating falling oil prices and stronger technology results. But the market’s next move may depend on whether the proposed US-Iran agreement becomes reality and whether gains continue spreading beyond a small group of AI leaders.
With indexes at historic levels, optimism is powerful—but so is the potential for sharp reversals if negotiations fail, inflation remains stubborn, or earnings disappoint.
Frequently Asked Questions
Why did the S&P 500 reach a record high?
The index advanced after Treasury Secretary Scott Bessent said the United States and Iran could reach a deal to reopen the Strait of Hormuz. Falling oil prices and strong technology earnings also boosted investor confidence.
How much did the S&P 500 gain?
The S&P 500 rose 1.48% to 7,712.87 around midday on Tuesday, August 4, 2026.
Which stock led the market rally?
Palantir led the major stock moves, soaring 27% after reporting better-than-expected commercial revenue.
Why are oil prices important for stocks?
Lower oil prices can reduce inflationary pressure and business costs, which may support consumer spending, corporate profits, and expectations for interest rates.
Could volatility return?
Yes. Geopolitical negotiations remain uncertain, and SpaceX’s first earnings report plus an upcoming insider-share release could produce additional market volatility.
