Tesla, ranked number one in Friday's U.S. stock trading volume, closed up 3.32%, with a turnover of $35.612 billion. Following a 46% profit decline in 2025 and the halt of Model S/X production to retrofit its Fremont production line for humanoid robots, the company announced its 2026 capital expenditure would more than double to approximately $20 billion to fund autonomous driving technology and the Optimus robot.
Nvidia, the second-highest by volume, closed down 0.72%, with a turnover of $33.987 billion. The stock gained 1.84% for the week. Recent reports indicated Nvidia is advancing its autonomous taxi collaboration plan with Mercedes-Benz.
Microsoft, ranked third, closed down 0.74%, continuing its decline from Thursday, with a turnover of $24.973 billion. The stock plunged about 10% on Thursday, fell 7.65% for the week, and declined over 11% in January.
Microsoft reported better-than-expected earnings per share and revenue for the second quarter, but its stock fell due to slowing Azure growth, a 66% jump in capital expenditure to $37.5 billion, and the fact that 45% of its $625 billion commercial order backlog is linked to OpenAI.
It was reported that the French Sycomore Sustainable Tech fund chose to buy against the trend during Microsoft's sharp decline, betting that the tech giant would ultimately reap rewards from its massive AI investments. The fund's chief portfolio manager, David Rainville, stated, "We remain confident that the group is likely to be a winner in the AI field, especially with its Copilot product."
The Sycomore Sustainable Tech fund currently manages approximately €514 million (about $612 million) in global tech equity assets. Over the past three years, the fund's average performance has beaten 99% of its peers.
SanDisk Corp., ranked fourth, closed up 6.85%, with a turnover of $24.302 billion. The stock surged 21.62% for the week. SanDisk gained 142.75% in January, marking its largest monthly gain since going public.
Driven by the AI boom, demand for its chips has surged, leading SanDisk to significantly exceed Wall Street's expectations for its fiscal 2026 second-quarter earnings, causing its stock price to soar.
Major tech companies are currently racing to invest more storage resources into building high-energy-consumption data centers, a construction wave that is the core driver of the AI revolution. Consequently, demand for memory chips has skyrocketed, bringing development dividends to storage companies like SanDisk. This market backdrop has also created a supply-demand imbalance for memory chips, creating conditions for storage companies to raise prices and maintain high profit margins.
Micron, ranked sixth, closed down 4.80%, with a turnover of $21.584 billion. The stock gained over 45% in January.
AMD, ranked tenth, closed down 6.13%, with a turnover of $9.465 billion. The stock fell 8.8% for the week but rose 10.5% in January. During the Q4 2025 earnings call, Microsoft CEO Satya Nadella emphasized that despite launching its in-house Maia 200 chip, Microsoft would not stop purchasing chips from Nvidia and AMD.
Microsoft has begun deploying its proprietary AI chip, the Maia 200, in data centers. Tailored for 'AI inference' tasks—running trained models to make predictions—this marks a significant breakthrough for the company in the AI hardware sector.
Palantir, ranked fourteenth, closed down 3.47%, with a turnover of $6.874 billion. The stock fell 13.6% for the week and declined 17.5% in January. Recently, renowned U.S. tech analyst Dan Ives and his team at Wedbush stated that "disputes" surrounding Greenland are contributing to weakness in the U.S. stock market. Ives pointed out that as "risk-off sentiment" impacts AI concept stocks, tech stocks are bound to be affected, but they see this as an opportunity to hold "tech winners." He noted, "If the stock market weakens, we would buy many stocks in the IVES AI 30 Index, including Nvidia, Microsoft, Palantir, Apple, Google, and Tesla."
Applovin, ranked fifteenth, closed down 16.89%, with a turnover of $6.04 billion. Analysts said the stock's sharp decline on Friday was clearly a reaction to Google's "Project Genie." This project is a new prototype from Google DeepMind that allows users to create virtual worlds for games using AI.
Applovin fell 9.78% for the week and declined nearly 30% in January.
Western Digital, ranked sixteenth, closed down 10.12%, with a turnover of $5.546 billion. The stock rose over 45% this month, marking its tenth consecutive monthly gain.
Intel, ranked eighteenth, closed down 4.50%, with a turnover of $5.343 billion. The stock rose 25.9% this month.
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