On Monday, the stock with the highest trading volume was Micron Technology, which closed up 0.96% with a turnover of $35.956 billion. Citigroup added Micron to its "Positive Catalyst Watch" list.
Analysts from the bank stated in a research note: "Micron is added to the Positive Catalyst Watch list given expectations for higher DRAM prices in the second half of 2026... Fundamentally, AI computing demand remains supply-constrained, as reflected by the recent 20% price increase for AWS EC2 GPUs. DRAM shortages are currently the primary constraint on compute power supply."
The second most actively traded stock was SpaceX, which closed down 1.02% with a turnover of $29.698 billion. The company is set to officially join the Nasdaq 100 index before the market opens on July 7th. This inclusion, just 15 days after its debut on the Nasdaq on June 12th, marks the fastest entry into the index since its inception.
JPMorgan estimates suggest this inclusion in the Nasdaq 100 alone will trigger approximately $4.3 billion in forced buying by passive funds. When accounting for simultaneous inclusion in MSCI and FTSE Russell global indices, the total forced buying by global passive funds over 15 trading days could reach around $35 billion.
Separately, the company recently announced a new AI data center construction plan while confirming it is proceeding on schedule with the deorbiting of about 100 first-generation Starlink satellites. This signals the Elon Musk-led space firm is accelerating its expansion into AI infrastructure.
According to company information, SpaceX plans to build a data center in the US Midwest specifically for AI workloads, directly leveraging the high-speed, low-latency data backhaul capabilities of its Starlink satellite network. The data center is expected to have a capacity of about 250 megawatts, utilizing SpaceX's proprietary liquid cooling and energy management systems. The first server racks are planned to be operational in the second quarter of 2027.
The third most traded stock was Tesla, which closed up 6.69% with a turnover of $22.024 billion. Tesla recently quietly launched a longer-wheelbase version of the Model Y, internally codenamed "Model Y L," in some markets. This new vehicle maintains the original design language but features significant optimizations to body dimensions and interior space, primarily targeting larger families.
Based on released information, the Model Y L's wheelbase is about 150 millimeters longer than the standard Model Y, with rear legroom increased by about 20% and cargo space expanded accordingly. An optional third-row seat accommodates seven passengers, and the trunk can still fit two carry-on suitcases with the third row upright. To accommodate the heavier body and potential towing needs, the suspension and braking systems have been upgraded.
The Model Y L currently offers only a Long Range All-Wheel-Drive version, with an EPA-estimated range of about 330 miles, slightly lower than the standard model. In the US market, the starting price is $59,990, approximately $9,000 higher than the standard Model Y Long Range. Orders can be placed through Tesla's website, with estimated delivery between September and October 2026.
The sixth most active stock was AMD, which closed up 6.61% with a turnover of $16.484 billion. Goldman Sachs raised its price target for AMD from $450 to $640. This adjustment is the latest in a series of recent moves by Wall Street to re-evaluate valuation logic across the AI semiconductor supply chain.
Over the past month, from Bank of America raising its server CPU market size forecast to institutions like Goldman Sachs, Morgan Stanley, and Nomura increasing price targets for Kioxia, SIMO, and TSMC, capital is signaling that AI demand is spreading from GPU performance products to broader infrastructure bottlenecks like server CPUs, memory, advanced packaging, and equipment materials. This is not an isolated event but a clear signal of AI capital expenditure moving deeper into the supply chain.
The tenth most traded stock was Meta Platforms, which closed up 2.98% with a turnover of $10.15 billion. According to internal Meta documents and five informed sources, hundreds of contractors working on a Meta project posed as minors online to test how competitors' chatbots would respond to prompts involving suicide, sex, eating disorders, and other high-risk topics.
The project, internally codenamed Cannes and managed by outsourcing firm Covalen, ran until at least April 21st. It primarily targeted OpenAI's ChatGPT, Google's Gemini, and Character.AI.
The thirteenth most active stock was Broadcom, which closed up 3.73% with a turnover of $9.021 billion. Broadcom announced on Monday it had reached an agreement with Apple to extend their chip partnership until 2031, continuing to supply custom chips and wireless communication components. Apple's business accounts for about 20% of Broadcom's annual revenue, making it one of Broadcom's largest customers.
This extension continues Apple's strategy of strengthening supply chain resilience through long-term agreements, following multi-year deals signed in 2020 and 2023. Despite Apple's ongoing push for in-house chip design, it remains highly reliant on Broadcom for radio frequency and connectivity components. The current environment features tight TSMC capacity due to surging AI chip demand and increasing industry competition from cloud providers developing their own ASICs.
The sixteenth most traded stock was Taiwan Semiconductor Manufacturing Company (TSMC), which closed up 4.06% with a turnover of $5.649 billion. Citigroup analysts stated in a report that TSMC might further raise its 2026 revenue growth forecast during its upcoming earnings call, driven by sustained demand for cutting-edge chips and improved long-term visibility.
TSMC is scheduled to report its second-quarter results in mid-July.
The Citigroup analysts noted that TSMC's greatest advantage over peers is its capacity. They stated: "Despite intensifying foundry competition, this scale advantage should continue to support wafer pricing, customer stickiness, and sustainable gross margins."
The analysts added that TSMC is likely to remain a primary beneficiary of growing AI semiconductor demand, regardless of customer mix.
The twentieth most active stock was Western Digital, which closed up 7.14% with a turnover of $4.369 billion. Goldman Sachs issued a report on July 6th, significantly raising its price target for Western Digital from $400 to $650, implying a further 9.5% upside from current levels. Concurrently, global memory chip prices continue to rise, with the price of a 1TB solid-state drive doubling from 500 yuan at the start of the year to 1,000 yuan currently, a 100% increase. Explosive demand for memory chips from AI servers is further exacerbating the supply-demand imbalance.
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