Markets News, July 10, 2025: S&P 500, Nasdaq Hit New Highs as Airline Stocks Soar After Strong Delta Earnings; Bitcoin Surges to Record

U.S. equities closed at new record highs Thursday, with the S&P 500 and Nasdaq Composite advancing 0.3% and 0.1% respectively, as investors largely dismissed tariff concerns following a deadline extension. Key sector drivers included airline stocks, which surged on Delta's stronger-than-expected earnings and reinstated full-year guidance, and industrials like MP Materials, which soared over 50% on a significant multi-billion dollar Department of Defense rare earths agreement. Additionally, WK Kellogg jumped 30% on its $3.1 billion acquisition by Ferrero, while AMD gained on an upgrade citing its AI chip competitiveness against Nvidia, which sustained its over $4 trillion market capitalization.

Analysis

Major U.S. indexes advanced to new highs, with the S&P 500 and Nasdaq rising 0.3% and 0.1% respectively, as investors looked past persistent tariff uncertainties, which were mitigated by a deadline extension to August 1. The market's upward momentum was driven by strong corporate-specific news rather than broad macroeconomic sentiment. The airline sector experienced a significant lift after Delta (DAL) reported stronger-than-expected quarterly results and reinstated its full-year guidance, propelling shares of United (UAL), American (AAL), and Southwest (LUV) higher by 8% to 14%. The artificial intelligence theme remains a dominant force, with Nvidia (NVDA) maintaining its $4 trillion market capitalization and Advanced Micro Devices (AMD) gaining over 4% following an HSBC upgrade that cited its new MI350 chips as being competitive with Nvidia's offerings. M&A and strategic investments also created significant single-stock volatility; WK Kellogg (KLG) surged 30% on a definitive $3.1 billion acquisition agreement with Ferrero, and rare earths producer MP Materials (MP) soared over 50% on a multi-billion dollar deal with the Department of Defense. Conversely, M&A speculation drove both Autodesk (ADSK) and PTC down roughly 7% on reports of a potential combination.

Key Decisions for Investors

• Given Delta's strong performance and reinstated guidance, investors should reassess exposure to the airline sector, as the broad-based rally suggests renewed market confidence in operational execution and travel demand.
• The positive HSBC analysis on AMD's MI350 chips signals increasing competition for Nvidia in the high-end AI accelerator market, warranting a review of semiconductor portfolios to potentially hedge against single-company dominance.
• The significant Department of Defense investment in MP Materials highlights a key government priority in securing domestic rare earth supply chains, presenting a long-term thematic opportunity in strategic materials and national security.
• Monitor M&A-related price action, as the negative stock reactions of acquirer Autodesk and target PTC show that the market is acutely sensitive to the potential for value destruction and execution risk in large-scale deals.