U.S. equities traded higher on Tuesday as investors closed out both the first half of 2026 and the second quarter with renewed confidence, fueled by a powerful rebound in semiconductor stocks and improving sentiment surrounding artificial intelligence spending.

The rally reflected growing optimism that corporate earnings remain the primary driver of equity markets despite lingering geopolitical uncertainty and elevated interest rates.

By midday trading, the Dow Jones Industrial Average had gained approximately 174 points, or 0.3%, while the S&P 500 rose 0.8%. The technology-heavy Nasdaq Composite outperformed with a 1.4% advance as investors returned to major semiconductor names.

Semiconductor Stocks Lead the Market Higher

Technology shares once again dominated market leadership, with semiconductor companies extending one of the strongest rallies seen this year.

Advanced Micro Devices climbed roughly 7%, matching gains in Intel, while Nvidia added more than 1% as investors continued to embrace companies benefiting from expanding artificial intelligence infrastructure spending.

The VanEck Semiconductor ETF (SMH) rose approximately 3%, bringing its year-to-date gain to more than 81%, underscoring the continued strength of the AI-driven semiconductor cycle despite recent periods of volatility.

The rebound suggests investors remain confident that long-term demand for advanced computing, memory, and AI hardware will continue supporting earnings growth across the sector.

Strong Finish to a Remarkable First Half

Tuesday marked the final trading session of both the first half of 2026 and the second quarter, capping one of the strongest six-month periods for U.S. equities in recent years.

The Dow Jones Industrial Average was on pace to gain more than 8% during the first six months of the year, representing its strongest first-half performance since 2021.

The S&P 500 also advanced more than 8% over the same period, while the Nasdaq outperformed with gains exceeding 11%.

Small-cap equities delivered even stronger returns, with the Russell 2000 climbing more than 21%, placing it on track for its best first-half performance since 1991.

The second quarter proved especially impressive after markets recovered from earlier volatility driven by geopolitical tensions and concerns surrounding AI-related valuations.

The S&P 500 appeared set to finish the quarter with gains of roughly 14%, while the Nasdaq was on pace for a remarkable 20% quarterly advance—its strongest quarterly performance since the second quarter of 2020.

Meanwhile, the Dow looked set to record its best quarterly performance since late 2022.

Oil Prices Stabilize as Middle East Risks Ease

Energy markets remained relatively calm despite ongoing monitoring of the Middle East.

U.S. West Texas Intermediate crude traded near $70 per barrel, while Brent crude hovered around $73 per barrel, reflecting cautious optimism following the recent pause in hostilities between the United States and Iran.

The temporary ceasefire agreement has reduced immediate concerns over disruptions to shipping through the Strait of Hormuz, one of the world’s most strategically important energy corridors.

Although geopolitical risks remain elevated, investors have largely shifted their attention back toward economic fundamentals and corporate earnings.

Earnings Continue to Drive Market Leadership

Market strategists increasingly believe that earnings growth has become the dominant force influencing stock performance.

While higher interest rates and geopolitical uncertainty continue to influence investor sentiment, strong corporate profitability—particularly among technology and AI-related companies—has helped sustain the broader bull market.

Recent earnings reports from semiconductor and technology companies have reinforced expectations that AI infrastructure spending remains robust, supporting elevated valuations across much of the sector.

At the same time, investors have gradually expanded their focus beyond large-cap technology, contributing to improved performance among value-oriented and economically sensitive sectors.

Looking Ahead

As markets enter the second half of 2026, investors will closely monitor second-quarter earnings season, Federal Reserve policy, inflation trends, and geopolitical developments in the Middle East. While semiconductor and AI-related companies continue to lead market performance, many analysts expect the rally to broaden further if economic conditions remain stable and earnings growth extends beyond the technology sector. A sustained recovery in value stocks and cyclical industries could provide additional support for U.S. equities during the remainder of the year.