U.S. equity markets showed remarkable resilience during Tuesday afternoon trading on March 17, 2026, as investors pivoted from geopolitical anxieties toward robust corporate guidance and continued optimism in the artificial intelligence sector. Despite ongoing volatility in the energy markets linked to the conflict in the Middle East, the major indexes maintained steady gains as the trading day progressed toward the final hour.
Major Indexes and Sector Performance
As of mid-afternoon, the Dow Jones Industrial Average (DJI) advanced by approximately 352 points, or 0.8%, hovering near the 47,200 level. The broader S&P 500 (SPX) rose 0.7%, while the tech-heavy Nasdaq Composite (IXIC) climbed 0.7%, rebounding from earlier session lows.
Sector performance was led by the Industrials and Technology groups. The airline industry emerged as a primary catalyst for the day's gains after Delta Air Lines (DAL) raised its first-quarter revenue guidance, citing "accelerated trends in consumer and corporate demand." This positive outlook sent shares of Delta up 5%, while peers like American Airlines (AAL) and United Airlines (UAL) saw gains of 3.8% and 2.8%, respectively. Investors appeared to take comfort in the fact that travel demand remains inelastic even in the face of higher jet fuel costs driven by crude oil prices, which saw West Texas Intermediate (WTI) trading near $95 per barrel.
Major Stock News and Corporate Developments
The "AI trade" regained significant momentum following a keynote address by Nvidia (NVDA) CEO Jensen Huang. Huang projected that demand for artificial intelligence infrastructure, specifically for the Blackwell and upcoming Vera Rubin systems, could reach $1 trillion through 2027. This update propelled Nvidia shares up 1.6% and lifted the broader semiconductor space.
Uber Technologies (UBER) was another standout performer, jumping 5.2% after announcing an expanded partnership with Nvidia to launch a fleet of autonomous vehicles. The service is slated to debut in Los Angeles and San Francisco next year. Meanwhile, Big Tech stalwarts like Apple (AAPL), Microsoft (MSFT), and Meta Platforms (META) all traded higher by more than 1%, benefiting from the renewed confidence in AI spending.
In other corporate news, Expedia Group (EXPE) outperformed with a 5.8% gain, tracking for its third consecutive day of increases. Conversely, J.B. Hunt Transport Services (JBHT) struggled, falling 1.7% as it tested support at its 100-day moving average. In the consumer space, Kenvue (KVUE) saw heavy options activity and a 1.3% price increase, while Tesla (TSLA) and Alphabet (GOOGL) also posted modest gains in afternoon trade.
Upcoming Market Events and Economic Data
Market participants are closely watching for the conclusion of the Federal Reserve's two-day policy meeting on Wednesday. While the central bank is widely expected to leave interest rates unchanged in the target range of 3.50%–3.75%, the focus will be on Chair Jerome Powell’s press conference. Investors are seeking clarity on when the Fed might begin its easing cycle, especially as recent data showed industrial production rose a modest 0.2% in February, slightly ahead of estimates.
On the earnings front, all eyes are on Micron Technology (MU), which is scheduled to report on Wednesday. Shares of Micron rose 3.6% today as analysts at Wedbush and Wells Fargo raised their price targets, anticipating strong demand for high-bandwidth memory (HBM) required for next-generation AI processors. Additionally, the Treasury Department is set to conduct an 8-week bill auction tomorrow, which will provide further insight into liquidity conditions and short-term rate expectations.
Ed Liston is a senior contributing editor at TheStockMarketWatch.com. An active market watcher and investor, Ed guides an independent team of experienced analysts and writes for multiple stock trader publications.