BY EMMANUEL OGBONNA
Wall Street extended its historic rally on Tuesday as enthusiasm surrounding artificial intelligence continued to propel major technology and infrastructure companies higher, pushing the benchmark S&P 500 to another record close despite concerns about the enormous costs associated with the industry’s rapid expansion.
The S&P 500 rose 0.1%, surpassing the previous all-time high it had established just one day earlier. The index’s latest advance marked another milestone in what has become one of the market’s strongest rallies in recent years.
The Dow Jones Industrial Average gained 0.4%, adding more than 250 points by the closing bell, while the Nasdaq Composite, which is heavily weighted toward technology companies, finished with only a slight gain after spending much of the session fluctuating between positive and negative territory.
The market’s continued strength reflected investor confidence in companies positioned to benefit from the artificial intelligence revolution, which many analysts view as one of the most transformative technological shifts since the emergence of the internet.
Among the day’s biggest winners was , whose shares surged 29.3%, recording their strongest single-day performance in years. The dramatic rally came after suggested during a technology conference in Taiwan that Marvell could eventually become the next company valued at more than $1 trillion.
The comments generated significant excitement among investors who have increasingly sought opportunities beyond the largest established AI players. A growing number of semiconductor and infrastructure companies have benefited from expectations that demand for advanced computing systems will continue expanding rapidly as artificial intelligence applications become more widespread.
Marvell’s surge highlighted the broader enthusiasm surrounding companies that provide critical technologies powering AI development. Investors have rewarded businesses involved in designing chips, networking equipment and data center components, believing they stand to benefit regardless of which artificial intelligence platforms ultimately dominate the market.
Another strong performer was , whose shares jumped 17.1% after the company reported quarterly earnings that significantly exceeded Wall Street expectations.
Company executives attributed much of the growth to strong demand from customers investing heavily in artificial intelligence infrastructure. As businesses, governments and technology firms race to expand their AI capabilities, demand for servers, networking equipment and data center systems has increased substantially.
The results reinforced the view that companies supplying the hardware behind artificial intelligence may continue to experience robust growth as investment in the sector accelerates.
Backup power provider also benefited from the AI boom. Its shares rose 6% after the company announced a contract to provide power generators to a major hyperscale data center operator.
Hyperscale data centers have become a critical component of the artificial intelligence ecosystem. These massive facilities house thousands of servers and require enormous amounts of electricity to support advanced computing workloads. As demand for AI services expands, technology companies are investing unprecedented sums into building and expanding such facilities.
The scale of spending has become one of the defining themes of the current market cycle.
One of the most closely watched developments came from , the parent company of Google, which announced plans to raise approximately $80 billion through a stock offering. The company said the funds would help finance its growing investments in artificial intelligence infrastructure and future expansion.
Alphabet revealed that it expects to spend as much as $190 billion this year on equipment, facilities and other strategic investments. Management also indicated that spending could rise significantly further next year as competition intensifies among leading technology companies.
The figures underscore the extraordinary scale of the AI race. Alphabet’s planned investment budget alone exceeds the total market value of many major corporations and reflects the willingness of technology giants to commit vast resources in pursuit of future growth.
However, the announcement also renewed concerns among some investors about whether artificial intelligence will eventually generate returns sufficient to justify such massive expenditures.
As a result, Alphabet shares fell 3.3%, making the company one of the largest drags on the broader market despite gains elsewhere in the technology sector.
The decline reflected growing debate on Wall Street regarding the sustainability of current AI investment levels. While supporters argue that artificial intelligence could drive significant productivity gains and create entirely new industries, skeptics warn that expectations may be becoming detached from economic reality.
Some analysts have increasingly drawn comparisons to previous technology booms, suggesting that elements of speculative enthusiasm may be emerging as companies continue to announce ever-larger spending plans.
Despite those concerns, the broader market remains resilient.
The S&P 500 has now enjoyed one of its longest winning stretches in recent years, posting gains for nine consecutive weeks. The rally has been fueled by stronger-than-expected corporate earnings, continued economic growth and optimism that geopolitical tensions may eventually ease.
Investors have also been encouraged by diplomatic efforts aimed at reducing disruptions in global energy markets. Hopes that the United States and Iran could reach an agreement affecting shipping through the Strait of Hormuz have helped support sentiment in recent weeks.
Energy markets, however, remained volatile.
Brent crude oil, the international benchmark, climbed 1.1% to settle at $96 per barrel. Although prices remain below recent peaks, they are still significantly higher than the roughly $70-per-barrel level seen before the outbreak of conflict in the region.
Rising energy costs continue to be closely monitored by investors because of their potential impact on inflation, consumer spending and corporate profitability.
In the bond market, Treasury yields showed relatively little movement despite the release of stronger-than-expected labor market data.
The yield on the benchmark 10-year U.S. Treasury note slipped slightly to 4.45% from 4.47% a day earlier. Yields initially moved higher after a government report indicated that employers had advertised substantially more job openings than economists anticipated at the end of April, suggesting continued strength in the labor market.
A resilient labor market can support economic growth but may also complicate efforts by policymakers to bring inflation under control, potentially delaying future interest rate cuts.
Higher borrowing costs remain a concern for investors because elevated interest rates can slow economic activity, increase financing costs and weigh on corporate investment plans.
The issue is particularly relevant to the artificial intelligence sector, where companies are spending hundreds of billions of dollars constructing data centers and expanding computing capacity. Sustained high interest rates could make financing those projects more expensive and potentially affect the pace of future development.
International markets also delivered a broadly positive performance.
Stock indexes across much of Europe advanced as investors responded to corporate earnings and economic data. In Asia, gains were led by Hong Kong, where the jumped 2.5%, one of the strongest performances among major global markets.
The latest record highs on Wall Street highlight the extraordinary influence artificial intelligence continues to exert over financial markets. While concerns remain about valuations and the immense costs associated with the technology race, investors continue to reward companies viewed as central to the next phase of AI-driven growth.
For now, enthusiasm surrounding artificial intelligence remains powerful enough to keep pushing U.S. equities to new heights, even as questions grow about how long the spending boom can continue and whether future profits will ultimately justify the enormous investments being made today.