--- title: "Top 20 U.S. Stock Trading Volumes on March 20: UBS Lowers Tesla's First Quarter Delivery Expectations" type: "News" locale: "zh-HK" url: "https://longbridge.com/zh-HK/news/279846752.md" description: "On Thursday, among the top 20 stocks by trading volume in the U.S. market, Micron Technology had a trading volume of $32.57 billion, closing down 3.78%. Despite exceeding performance expectations, the market is concerned about its increased capital expenditure outlook. NVIDIA had a trading volume of $29.916 billion, closing down 1.02%, announcing an update for GeForce NOW. Tesla had a trading volume of $25.437 billion, closing down 3.19%, with UBS lowering its first-quarter delivery forecast to 345,000 vehicles" datetime: "2026-03-19T20:50:34.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/279846752.md) - [en](https://longbridge.com/en/news/279846752.md) - [zh-HK](https://longbridge.com/zh-HK/news/279846752.md) --- > 支持的語言: [简体中文](https://longbridge.com/zh-CN/news/279846752.md) | [English](https://longbridge.com/en/news/279846752.md) # Top 20 U.S. Stock Trading Volumes on March 20: UBS Lowers Tesla's First Quarter Delivery Expectations On Thursday, Micron Technology, the top stock by trading volume in the U.S., fell 3.78%, with a trading volume of $32.57 billion. Rising spending plans and cautious investor sentiment overshadowed what was originally a strong quarterly report. The stock briefly climbed to nearly $470, a historic high, during Wednesday's trading but fell back to around $441 in after-hours trading, indicating that some investors locked in profits after the significant price increase. Despite Micron's earnings exceeding expectations, the stock price still experienced a pullback. For the quarter ending February 26, the company reported revenue of $23.86 billion, up from $8.05 billion in the same period last year, driven by strong demand for memory chips used in artificial intelligence systems. Supply constraints and the demand for higher memory capacity in advanced computing continue to support pricing. Nevertheless, Micron raised its capital expenditure forecast for fiscal year 2026 from $20 billion to $25 billion, signaling growth for 2027. The outlook for increased spending and the cyclical nature of the industry seem to have triggered market concerns about profit margins, dragging the stock price lower even after the positive earnings announcement. NVIDIA, in second place, fell 1.02%, with a trading volume of $29.916 billion. On Thursday, NVIDIA announced an update for GeForce NOW, which includes two parts: new games and an upgrade to the VR streaming experience. The newly added games include "Crimson Desert," an open-world title developed by Pearl Abyss, and the classic "Fallout 3" from Bethesda. Technically, this update increases the streaming frame rate for devices such as Apple's Apple Vision Pro, Meta Quest, and Pico from 60FPS to 90FPS, currently available only to Ultimate members. NVIDIA stated that users can turn their real space into a "personal gaming cinema," running PC games on a massive virtual screen with smoother visuals and more natural motion. Tesla, in third place, fell 3.19%, with a trading volume of $25.437 billion. UBS analyst Joseph Spak predicts Tesla's first-quarter deliveries will be 345,000 vehicles, down from his previous estimate of 360,000, a reduction of about 4.2%. Spak noted that this expectation is below the Visible Alpha consensus estimate of 371,000 vehicles but aligns with the buyer institutions' expected range of 330,000 to 350,000 vehicles. Spak maintains a sell rating on Tesla, with a target price of $352. In fourth place, SanDisk rose 2.44%, reaching a historic high, with a trading volume of $15.507 billion. The stock has now risen for five consecutive trading days. In seventh place, Meta Platforms fell 1.46%, with a trading volume of $7.836 billion. Meta announced on its official website that it will introduce more advanced artificial intelligence (AI) systems for content moderation, such as identifying fraudulent information and removing illegal content, a move that may help reduce the company's reliance on outsourced vendors and contractors Meta stated in a blog post released on Thursday (March 19) that the company believes AI systems can more accurately detect violations, prevent more fraud, and respond more quickly to real-world events, reducing the errors of over-enforcement. "In the coming years, once we confirm that these more advanced AI systems consistently outperform existing methods in content moderation, we will gradually deploy them across all applications, fundamentally changing our moderation approach." "Meanwhile, we will reduce our reliance on third-party vendors for content moderation and focus on strengthening our internal systems and workforce." However, Meta emphasized that the company will still retain human review and will not rely entirely on AI systems. Broadcom, ranked 10th, rose 1.24%, with a trading volume of $7.28 billion. Reports indicate that Samsung plans to supply OpenAI with up to 800 gigabits (Gb) of 12-layer HBM4 chips in the second half of this year. These HBM4 chips will be used in conjunction with OpenAI's first AI processor, a custom chip developed in collaboration with Broadcom (AVGO.US), which is expected to be manufactured by TSMC starting in the third quarter, with a target launch by the end of the year. AMD, ranked 11th, rose 2.91%, with a trading volume of $6.418 billion. Samsung Electronics announced on Wednesday that it has signed a memorandum of understanding (MOU) with semiconductor giant AMD at Samsung's Pyeongtaek plant to expand strategic cooperation in next-generation artificial intelligence memory and computing technologies. According to the MOU, Samsung and AMD will reach a consensus on the main supply of HBM4 for the next-generation AMD AI accelerator AMD Instinct MI455X GPU, as well as advanced DRAM solutions for the sixth-generation AMD EPYC CPU, codenamed "Venice." These technologies will support the next-generation AI systems that combine AMD Instinct GPUs, AMD EPYC CPUs, and rack architectures (such as the AMD Helios platform). Currently, Samsung and AMD are closely collaborating to jointly develop advanced memory technologies for artificial intelligence and data center workloads. As memory bandwidth and energy efficiency increasingly impact system-level performance, this collaboration will help provide customers with optimized AI infrastructure. Lumentum Holdings, ranked 12th, rose 10.18%, with a trading volume of $5.527 billion. This leading company in the optical communications industry disclosed its long-term financial fundamental growth model at the OFC 2026 Global Optical Communications Conference, which includes a "quarterly revenue run rate" of $2 billion. Alibaba, ranked 17th, fell 7.07%, with a trading volume of $1 billion. On March 19, Alibaba released its third-quarter financial report for fiscal year 2026: revenue of 284.84 billion yuan, a year-on-year increase of 2%; excluding Sun Art Retail and Intime, the same-store growth was 9%. However, net profit was 15.63 billion yuan, a year-on-year decline of 66%, Non-GAAP net profit was 16.71 billion yuan, a year-on-year decrease of 67%, and adjusted EBITA fell by 57% In the same period, cloud business grew by 36% year-on-year, and AI-related revenue maintained triple-digit growth for the tenth consecutive quarter. Ranked 19th, Cheniere Energy rose by 5.88%, with a transaction volume of $3.47 billion. Cheniere Energy's stock price jumped 5.88% on Thursday, boosted by global liquefied natural gas supply disruptions and the expansion of long-term trading with Thailand, while the company priced a $1 billion dual-tranche senior note issuance. The stock was also supported by global liquefied natural gas supply disruptions and a 30% surge in European natural gas prices. Thailand is negotiating to increase its long-term liquefied natural gas procurement from Cheniere by 30%, from 1 million tons per year to 1.3 million tons, with the first delivery expected this quarter. The company priced a $1 billion dual-tranche senior note issuance, maturing in 2036 and 2056, and plans to use the proceeds for general corporate purposes. 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