On Monday, the top stock by trading volume was Micron Technology (MU), closing up 1.14% with a turnover of $65.915 billion. Micron and Apple (AAPL) have recently been publicly sparring over memory chip pricing. Micron CEO Sanjay Mehrotra stated that for over a decade, Apple purchased chips for $5 and resold them for $99, but now that Micron has raised its price to $50, Apple is increasing its prices to customers by $250.

Apple recently announced significant price increases for its Mac and iPad products, with hikes of up to $300. The company's CEO, Tim Cook, pointed the finger at memory suppliers, attributing cost pressures to the supply chain. However, Micron's Chief Business Officer, Sumit Sadana, suggested that certain customers (referring to Apple) had suppressed purchase prices during the last market downturn, leading to a halt in industry investment, and should now bear some responsibility for the current supply tightness.

Analysis suggests that AI demand is crowding out production capacity, turning the memory market into a seller's market where companies like Micron have regained pricing power. The dispute is essentially a redistribution of profits at an inflection point in the industry cycle.

The second most traded stock was NVIDIA (NVDA), closing up 1.27% with a turnover of $28.458 billion. Reports indicate that Cerebras will provide OpenAI with a total of 750 megawatts of computing power, a scale roughly equivalent to the total power consumption of a large data center campus. Analysts say this news signals OpenAI's move to deploy large-scale inference computing power and diversify its supply chain beyond NVIDIA.

The third most traded stock was Tesla Motors (TSLA), which surged 8.46% with a turnover of $22.926 billion. Tesla is set to announce its second-quarter vehicle delivery numbers in early July, a figure that may garner more market attention than any recent updates on robotaxis or humanoid robots. Deliveries are the most direct indicator of whether demand for Tesla's cars is recovering from a difficult 2025, and this quarter serves as the first substantial test of whether that recovery is sustainable.

In 2025, Tesla delivered 1,636,129 vehicles, an 8.6% decline from the nearly 1.8 million delivered in 2024. In Q1 2026, deliveries increased 6.3% year-over-year to 358,023, marking a return to growth. However, the company produced about 50,000 more vehicles than it delivered, a larger-than-usual gap between supply and demand.

Wall Street currently widely expects Tesla to deliver approximately 406,000 vehicles in the second quarter, with some more optimistic forecasts reaching about 420,000. Either prediction would easily surpass the 384,122 vehicles delivered in the same period last year, and this comparison will be a key benchmark for the market to judge the strength of the recovery.

The sixth most traded stock was Amazon.com (AMZN), closing up 3.20% with a turnover of $18.26 billion. Amazon Web Services (AWS) Redshift has launched several new features to enhance multi-cluster and elastic scaling capabilities, helping enterprises build decentralized, high-performance analytics architectures.

The update includes support for remote materialized view operations, allowing creation from external data sources like remote clusters, Redshift Spectrum, and federated query systems, independent of source data location, to improve query performance and reduce computational resource consumption.

It also adds support for remote table DDL operations, enabling table structure modifications in distributed environments without migrating or replicating data locally, catering to enterprises with large-scale multi-cluster deployments and high requirements for table structure consistency.

Concurrency scaling optimizations for zero-ETL and S3 event integration have been completed, enhancing high-concurrency query processing capabilities, supporting independent scaling of analytical workloads and production business, and ensuring stable performance even under high-load scenarios.

These updates can help enterprises build elastic, scalable analytics infrastructure without impacting production business or exceeding the resource limits of a single data warehouse, meeting real-time insight needs.

The tenth most traded stock was SpaceX, closing up 7.15% with a turnover of $12.734 billion. According to media reports, on June 30, 2026, a series of Elon Musk's plans spanning space computing, humanoid robots, full self-driving, and Mars colonization have fully entered the implementation phase. Progress includes the official naming of the Starmind space AI satellite constellation, the Terafab chip factory poaching talent from Taiwan Semiconductor Manufacturing (TSM), Tesla's FSD nearing approval in China, and Optimus robots replacing Model S/X production lines. These developments are reshaping the underlying logic of the global automotive and mobility industries at an unprecedented pace.

The eleventh most traded stock was Alphabet (GOOGL), closing up 4.82% with a turnover of $11.753 billion. The Dow Jones Industrial Average completed a component adjustment, with Alphabet replacing Verizon. Because the Dow uses a price-weighted methodology, Alphabet's current share price of around $353 compared to Verizon's $47 shifts index influence towards Alphabet. Following this change, Alphabet becomes the fifth "Magnificent Seven" company within the Dow, increasing the index's exposure to artificial intelligence, cloud infrastructure, and advertising. Market reactions are mixed; proponents believe the Dow will become a more representative blue-chip benchmark, while opponents worry about excessive concentration of mega-cap tech stock weightings.

The twelfth most traded stock was Applied Materials (AMAT), which jumped 10.82% to a record high with a turnover of $9.345 billion, bringing its monthly gain to over 50%. The catalyst was an announcement by the South Korean government on Monday of its largest-ever semiconductor and AI industry investment plan. President Lee Jae-myung presided over the launch of the "Three Super Projects," announcing an investment of approximately 800 trillion won in the southwest to build four chip factories, with Samsung Electronics and SK Hynix each constructing two. The goal is to double DRAM production capacity within five years. The massive capital expenditure will first involve purchasing equipment to set up production lines. Both "front-end equipment" for wafer manufacturing and "back-end equipment" critical for AI chip performance will directly benefit from this wave of expansion, with global top-tier equipment suppliers set to gain.

The seventeenth most traded stock was Western Digital (WDC), closing up 11.16% with a turnover of $7.066 billion. US memory-related stocks collectively rose on Monday.

The eighteenth most traded stock was Taiwan Semiconductor Manufacturing (TSM), closing up 5.26% with a turnover of $6.622 billion. UBS Group AG (UBS) raised its price target for TSMC on Monday while maintaining a "Buy" investment rating. The brokerage also increased its sales growth forecast for TSMC in 2026, judging that the company's earnings growth momentum has medium-to-long-term sustainability and predicting that the company may initiate product price increases in early 2027, further boosting profitability.

UBS forecasts that TSMC will continue to increase its capital expenditure scale from 2026 to 2028 and implement multiple rounds of capacity expansion plans, effectively alleviating industry pain points such as chip supply shortages and single-source customer supply chains. Current strong market demand for CPUs, AI devices, and edge intelligence applications is the core driver for the company's capacity expansion.