Record Trading Volumes: Nvidia Shines, UnitedHealth Surges Amid Market Fluctuations

1. Nvidia (Nasdaq: NVDA)
Nvidia dipped mildly by -0.86%, with the trading volume of 28.18B. Nvidia leads global semiconductor rankings as demand surges; CEO Jensen Huang enters world's top ten billionaires. Nvidia is optimistic about the trillion-dollar potential of physical AI.

2. Tesla (Nasdaq: TSLA)
Tesla dipped mildly by -1.50%, with the trading volume of 24.62B. Buffett's Berkshire Hathaway reduced its stakes in Apple and Bank of America during the second quarter, maintaining its top holdings in Apple, American Express, Bank of America, Coca-Cola, and Chevron. Berkshire acquired six new stocks, including United.

3. Unitedhealth Group Incorporated (NYSE: UNH)
Unitedhealth Group Incorporated surged by 11.98%, with the trading volume of 20.74B. Berkshire Hathaway, led by Warren Buffett, purchased 5.04 million shares of UnitedHealth Group in Q2, worth approximately $1.6 billion, contributing significantly to a 12% increase in UnitedHealth's stock, impacting Dow futures positively.

4. Microsoft (Nasdaq: MSFT)
Microsoft dipped mildly by -0.44%, with the trading volume of 13.47B. Microsoft's Windows Server 2025 update caused server issues, while Windows 11's previews improved user experience and dark mode. Berkshire Hathaway reduced Microsoft holdings in Q2, and Microsoft invested $1.7 billion in environmental initiatives.

5. Apple (Nasdaq: AAPL)
Apple dipped mildly by -0.51%, with the trading volume of 12.97B. Apple's Vision Pro 2 will feature the M5 chip. Apple faces persistent screen resolution issues with MacBook's notch affecting games, unresolved due to API errors. Apple officially joined Xiaohongshu to share technology insights. Morgan Stanley raised Apple's iPhone sales forecast to 54 million units.

6. Palantir Technologies (NYSE: PLTR)
Palantir Technologies dipped mildly by -2.13%, with the trading volume of 10.66B. Since its direct listing in 2020, Palantir Technologies Inc. has seen a remarkable stock surge of over 1700%, consistently increasing its valuation compared to larger tech giants.

7. Meta Platforms (Nasdaq: META)
Meta Platforms gained mildly by 0.40%, with the trading volume of 10.54B. Meta Platforms plans to restructure its AI business into four departments. Its market cap has surpassed $2 trillion, partially driven by AI strategies. Meta continues acquisitions, expanding its AI and smart glasses portfolio.

8. Amazon (Nasdaq: AMZN)
Amazon.Com gained mildly by 0.02%, with the trading volume of 9.17B. Amazon founder Jeff Bezos's mother passes at age 78; Amazon competes with Walmart in retail market dynamics. Buffett's Berkshire Hathaway's Q2 stock portfolio, worth $257.5 billion, revealed with new positions. Walmart renegotiates deal with TradeDesk, potentially impacting business relationships.

9. Advanced Micro Devices (Nasdaq: AMD)
Advanced Micro Devices dipped mildly by -1.90%, with the trading volume of 9.16B. AMD's market share for server processors has surged, and CEO Lisa Su equates its position to NVIDIA's in AI. Additionally, AMD agreed to share 15% of AI chip sales revenue in China, highlighting strategic maneuvers to expand market influence.

10. Intel (Nasdaq: INTC)
Intel gained mildly by 2.93%, with the trading volume of 7.72B. Intel engineer sentenced for secrecy breaches, with speculation around US government buying Intel's equity through chip funding amidst discussions. Dual memory sharing feature launched in Intel's graphics driver upgrade.