NVIDIA, ranked first in Tuesday's US stock trading volume, closed down 0.25% with a turnover of $24.937 billion. According to an official Microsoft blog post, Microsoft is collaborating with NVIDIA to develop artificial intelligence tools for the nuclear energy sector. These tools aim to streamline project approval processes, accelerate design and development, and optimize industry operational efficiency. Microsoft stated that nuclear energy is crucial for future development, but the industry currently faces significant bottlenecks in project implementation.
Tesla, the second most actively traded stock, closed up 0.59% with a turnover of $22.732 billion. In February 2026, EU passenger car registrations saw a modest year-on-year increase of 1.4%, reaching 865,437 units. This represents a significant rebound from the 3.9% decline in January, driven by further improvements in major market demand. Tesla's sales across the EU grew by 17% to 20,941 units.
Micron Technology, ranked third, closed down 2.18% with a turnover of $17.304 billion.
Alphabet's Class A shares (GOOGL), ranked fifth, closed down 3.85% with a turnover of $10.595 billion. The European Commission's schedule indicated that EU antitrust chief Teresa Rivera, who has expressed concerns about large tech companies extending their dominance into the artificial intelligence sector, was scheduled to meet with the CEOs of Alphabet (Google's parent company), Meta Platforms, and OpenAI on Tuesday.
Rivera has launched multiple investigations into the business practices of Google and Meta. This month, she stated that her team is reviewing the entire AI technology ecosystem, including AI chatbots, the data used to train models, and cloud computing infrastructure.
Palantir, ranked eighth, closed down 3.77% with a turnover of $8.522 billion. On March 23, 2026, the internationally authoritative index provider MSCI downgraded the Environmental, Social, and Governance (ESG) rating of US software company Palantir (ticker: PLTR.US) from 'BB' to 'B'.
This downgrade signifies that the rating agency perceives the company's performance in environmental protection, social responsibility, and corporate governance to be relatively poor among its peers and to have deteriorated compared to its previous standing.
Circle Internet, the stablecoin issuer ranked thirteenth, closed down 20.11% with a turnover of $5.951 billion. The stock experienced its worst single-day performance on record, driven by the latest version of a cryptocurrency bill, known as the Clarity Act, which suggests it could restrict earnings on stablecoin balances.
Prior to Tuesday, the stock's largest decline occurred on June 27, 2025, when it fell 15.5%. This sell-off also impacted Coinbase, a primary distribution platform for USDC, whose stock was down 9.8% at the time.
Earning yield, often delivered as rewards, on stablecoins like Circle's USDC is a key incentive for users to hold these tokens—similar to interest earned on cash in a bank account. Critics argue that if cryptocurrency applications like Coinbase offer such yields, customers might move funds away from traditional banks.
Separately, Circle's competitor Tether announced that it has hired an unnamed Big Four accounting firm to conduct the first-ever audit of its USDT reserves.
Lumentum, ranked fifteenth, closed up 10.02% with a turnover of $5.357 billion. On Tuesday, the optical communications sector continued its strong performance from the morning session.
Oracle, ranked seventeenth, closed down 4.70% with a turnover of $3.812 billion. According to informed sources, Microsoft has agreed to lease a data center project in Texas, USA, which was originally developed for Oracle and OpenAI.
Coinbase Global, ranked eighteenth, closed down 9.76% with a turnover of $3.806 billion. Coinbase announced that some US users might experience delays or performance degradation when withdrawing fiat currency.
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