Teslas Massive Trading Spike Amidst European Registration Plunge and Musks 24/7 Return

1. Tesla (Nasdaq: TSLA)
Tesla surged by 6.94%, with the trading volume of 42.19B. Tesla's European new car registrations in April 2025 dropped 52.6% year-over-year, according to the European Automobile Manufacturers Association. CEO Elon Musk announced he is returning to a 24/7 working schedule, focusing on Tesla and xAI.

2. Nvidia (Nasdaq: NVDA)
Nvidia gained solidly by 3.21%, with the trading volume of 25.84B. NVIDIA suppliers, including Foxconn and Dell, accelerated production after resolving technical issues, enabling shipments of the anticipated "Blackwell" AI servers. Capacity is expanding, ahead of NVIDIA's quarterly earnings, where investor focus remains on Blackwell's shipment recovery.

3. Apple (Nasdaq: AAPL)
Apple gained mildly by 2.53%, with the trading volume of 11.13B. Apple planned a satellite internet service with Boeing, but abandoned it due to high costs; its App Store blocked over $90 billion fraud in five years; and assembling iPhones in India could reach 60 million units annually within two years.

4. Palantir Technologies (NYSE: PLTR)
Palantir Technologies gained mildly by 0.06%, with the trading volume of 10.69B. Palantir Technologies reported a trading volume of $10.692 billion on May 27, 2025, ranking fourth on that day in the US stock market.

5. Microsoft (Nasdaq: MSFT)
Microsoft gained mildly by 2.33%, with the trading volume of 9.61B. Microsoft partnered with Intel and JD to showcase various AI applications at the AI PC event, pushing Windows 10 PC towards Windows 11. Microsoft also launched a cloud data center in Indonesia, boosting Southeast Asia's digital economy.

6. Amazon (Nasdaq: AMZN)
Amazon.Com gained mildly by 2.50%, with the trading volume of 7.10B. Amazon Web Services collaborates with Formula 1 to use generative AI for creating personalized racetracks and partners with SAP on an AI innovation program to address market and supply chain challenges.

7. Alphabet (Nasdaq: GOOGL)
Alphabet gained mildly by 2.63%, with the trading volume of 6.53B. Google Android Studio introduces Kotlin Multiplatform shared module template to improve cross-platform development efficiency. Google unveils an open-source framework, LMEval, to standardize AI model evaluation and reduce cost and time.

8. Meta Platforms (Nasdaq: META)
Meta Platforms gained mildly by 2.43%, with the trading volume of 6.05B. Meta Platforms restructures its AI team to expedite product releases, while facing a significant loss of AI talent; 11 of 14 key contributors to its Llama project have joined competitors, impacting Meta's AI strategy.

9. Unitedhealth Group Incorporated (NYSE: UNH)
Unitedhealth Group Incorporated dipped mildly by -0.19%, with the trading volume of 5.77B. UnitedHealth has experienced significant trading activity with a transaction value of $5.772 billion, indicating strong market interest in the company.

10. Microstrategy Incorporated (Nasdaq: MSTR)
Microstrategy Incorporated gained mildly by 0.73%, with the trading volume of 5.23B. MicroStrategy disclosed three insider transactions on May 27 and spent $427 million acquiring 4,020 bitcoins, increasing its holdings to 580,200 bitcoins.