U.S. Stocks End Q2 Higher as Strong Jobs Data and AI Rally Lift Wall Street

U.S. stock markets closed higher on Tuesday, wrapping up the second quarter and the first half of 2026 with solid gains as investors welcomed stronger-than-expected labor market data and a continued rebound in technology shares. Portfolio repositioning at quarter-end also supported trading following months marked by geopolitical tensions and debate over artificial intelligence spending.

The S&P 500 rose 0.8% to 7,496.51, while the Nasdaq Composite gained 1.5% to finish at 26,213.72. The Dow Jones Industrial Average added 0.3%, closing at a record 52,317.81.

Investor attention remained focused on U.S. labor market data, which could shape expectations for Federal Reserve interest rate policy. Last week, the Fed’s preferred inflation gauge climbed to its highest annual level since 2023, driven largely by higher oil prices during the Iran conflict. Although crude prices have since retreated, policymakers remain cautious that energy-related inflation could continue filtering through the economy.

Fresh data on Tuesday showed the Job Openings and Labor Turnover Survey (JOLTS) rose to 7.594 million in May, exceeding economists’ forecast of 7.296 million and marking the highest level in a year. The quits rate remained unchanged at 1.9%.

Economists said the figures suggest the U.S. labor market remains resilient. Navy Federal chief economist Heather Long noted that hiring conditions have improved from recent lows, although sectors such as technology and finance continue to face challenges. Schwab Research's Collin Martin added that the ratio of job openings to unemployed workers increased, a measure closely watched by Federal Reserve officials when assessing labor market conditions.

Markets will now turn to the ADP private payrolls report, Challenger job cuts data, and Thursday’s closely watched nonfarm payrolls report for additional clues on the direction of monetary policy.

Wall Street also capped an exceptionally strong quarter. The S&P 500 advanced 14.8% during the second quarter, its best quarterly performance since 2020, while the Nasdaq surged 21.4%. For the first half of 2026, the indexes gained 9.5% and 12.8%, respectively. The Dow climbed 12.9% during the quarter and 8.9% in the first six months, marking its strongest first-half performance since 2021.

Technology stocks continued to dominate investor sentiment as enthusiasm around artificial intelligence fueled semiconductor shares. The Philadelphia Semiconductor Index jumped 87.8% during the quarter, putting it on track for its strongest quarterly gain on record.

Despite the optimism, some analysts warned that AI-driven valuations remain dependent on broader productivity improvements beyond the technology sector. Apollo chief economist Torsten Slok said investors are still waiting to see AI significantly boost profit margins across industries outside software and technology, where adoption has been faster. He cautioned that heavily regulated and capital-intensive sectors could take much longer to realize meaningful productivity gains.

Wolfe Research strategist Stephanie Roth also pointed to rising memory chip prices as an emerging inflation risk. She estimated that higher memory costs have already contributed roughly 30 basis points to core PCE inflation, with additional upward pressure possible as AI demand continues to accelerate.

Geopolitical developments also remained in focus. While a recent memorandum of understanding between the United States and Iran helped ease some tensions, uncertainty persists over shipping through the Strait of Hormuz. Conflicting statements from Washington and Tehran regarding control of the strategic waterway have kept energy markets on edge. President Donald Trump said U.S. officials are expected to meet Iranian representatives in Doha, Qatar, as diplomatic efforts continue.

Among individual stocks, Strategy dropped 6.2% after Michael Saylor's company abandoned its long-standing commitment to never sell Bitcoin. Air Products surged 8% after announcing it would cancel its Louisiana Clean Energy Complex project despite recording a pre-tax charge of up to $2.9 billion related to the decision.

Investors also looked ahead to Nike's quarterly earnings report after the market close, as corporate results continue to provide insight into consumer demand and the broader economic outlook.