Stock Market Shakeup: Tesla and Nvidia Lead Surges Amid High Trading Volumes

1. Tesla (Nasdaq: TSLA)
Tesla gained solidly by 4.93%, with the trading volume of 44.46B. US regulators are intensifying scrutiny of Tesla's Robotaxi and FSD systems due to safety concerns. NHTSA is investigating FSD's performance in adverse conditions and its plans for safe public road testing amid previous accidents, highlighting ongoing safety validation inquiries.

2. Nvidia (Nasdaq: NVDA)
Nvidia gained solidly by 5.63%, with the trading volume of 42.06B. NVIDIA collaborates with Saudi Arabia's SDAIA to deploy 5000 Blackwell GPUs and build an AI factory. It sends 18000 top AI chips to Saudi Arabia and discusses a potential deal with UAE for over a million advanced chips.

3. Unitedhealth Group Incorporated (NYSE: UNH)
Unitedhealth Group Incorporated plunged by -17.83%, with the trading volume of 18.77B. United Health announced CEO Andrew Witty's resignation and withdrew its 2025 guidance, citing higher anticipated healthcare spending, while reaffirming healthcare business growth.

4. Palantir Technologies (NYSE: PLTR)
Palantir Technologies surged by 8.14%, with the trading volume of 18.48B. Palantir Technologies received the strongest endorsement from Bank of America as an AI standards setter, raising the price target to the highest on Wall Street. Additionally, insider Heather A. Planishek purchased 10,000 shares on May 8, 2025.

5. Meta Platforms (Nasdaq: META)
Meta Platforms gained mildly by 2.60%, with the trading volume of 12.10B. Jamie Lee Curtis publicly condemned Meta, demanding the removal of fraudulent AI-generated ads.

6. Amazon (Nasdaq: AMZN)
Amazon.Com gained mildly by 1.31%, with the trading volume of 11.78B. Amazon-backed Scale AI plans to open a Saudi Arabian office by year-end, enhancing its Middle East market presence. Slate's affordable electric pickup, invested by Amazon CEO Jeff Bezos, has surpassed 100,000 preorders, benefiting from U.S. EV subsidies.

7. Apple (Nasdaq: AAPL)
Apple gained mildly by 1.01%, with the trading volume of 10.89B. Apple plans to introduce a price-cut strategy for the iPhone 16 Pro during the 618 event in China to boost sales. The company is also developing brain-machine interface technology allowing device control via neural signals with a startup called Synchron.

8. Microsoft (Nasdaq: MSFT)
Microsoft dipped mildly by -0.03%, with the trading volume of 10.26B. Microsoft announced a global layoff of approximately 3%, impacting around 6,000 employees across all levels and regions to control costs and invest in AI development.

9. Coinbase Global (Nasdaq: COIN)
Coinbase Global surged by 23.98%, with the trading volume of 9.66B. Coinbase Global reported a daily trading volume of $9.66 billion on May 13, 2025, representing a 206.17% increase compared to the previous trading day.

10. Alphabet (Nasdaq: GOOGL)
Alphabet gained mildly by 0.68%, with the trading volume of 6.67B. Google launches "AI Future Fund" to support AI startups with investments and technical resources, and is developing an AI agent for software development. Additionally, Google faces 12 civil lawsuits in Europe over alleged market dominance abuse.