The stock of chip manufacturer AMD rose by about ten percent on Monday, temporarily lifting the company’s market value above one trillion dollars. The reason is the expectation that AI agents like Meta’s new app Muse will generate more demand for high-performance server processors. AMD is thus the fourth US chip manufacturer with this valuation, following Nvidia, Broadcom, and Micron.
Price Jump Lifts Market Value Above One Trillion Dollars
AMD’s stock climbed to a record high of around 615 dollars on September 21, 2026, ending a five-day price rally, as CNBC reports. This briefly pushed the market value above the one trillion dollar mark. Unverified closing price figures from various financial services fluctuate between just under 995 billion and just over one trillion dollars. Thus, AMD joins Nvidia, Broadcom, and Micron as the fourth US chip manufacturer in the trillion-dollar club – similar to what Apple did in the race for the highest market value ever earlier. Nvidia remains the largest chip company in the world by far, with a market value of around 5.49 trillion dollars. The company only increased by 2.33 percent on the same day – in absolute numbers, still a significantly larger value increase than AMD’s entire price jump. Other semiconductor stocks also benefited from the rally: Intel gained about twelve percent to 121.67 dollars, and the stock of chip designer Arm Holdings even rose by more than 15 percent. For industry observers, the price movement reads as a signal that investors currently see the entire semiconductor industry benefiting more from the AI boom than just a few months ago.
Meta’s AI Agent Muse Drives Demand for Server Chips
The trigger for the rally was primarily the success of Meta’s new AI agent Muse, which topped the list of free app downloads in the Apple App Store, as Yahoo Finance analyzes. Investors interpreted this as evidence that the ongoing response to user inquiries by AI systems will require significantly more traditional server processors (CPUs) alongside the currently dominant graphics chips. This ongoing response to inquiries is referred to in the industry as inference; it distributes many simultaneous requests and coordinates individual steps of an AI agent. AMD is strongly positioned in this market segment with its Epyc processor line. Market researcher TrendForce also expects that AMD will raise prices for its AI accelerators by about ten percent starting in the fourth quarter of 2026, which additionally indicates higher profit margins. The broader market also moved: The Nasdaq reached its first record close since June. This was aided by declining oil prices, falling bond yields, and the prospect of a meeting between US President Trump and Chinese President Xi Jinping.
Analysts Confirm Buy Recommendations Despite High Valuation
Several analysis firms reaffirmed their buy recommendation for AMD after the price jump, as the financial service TipRanks summarizes. Bank of America cites the delivery of the new Helios server racks to Microsoft’s Azure Cloud and the increasing CPU demand from AI agents, confirming its price target of 620 dollars. The investment bank Truist points to strong demand and execution strength despite expected pressures on gross margin in the fourth quarter and maintains its price target at 594 dollars. The analyst consensus averages at 644.62 dollars, which means only about five percent upside potential from the current price level. AMD internally expects growth in its server CPU division of more than 80 percent in the second half of 2026 and more than 70 percent in 2027. The recent rally is also part of a series of strategic steps that AMD is taking to expand its position in the AI business, including the acquisition of the Canadian inference specialist Taalas announced in August. Since the beginning of 2026, the stock price has increased by about 187 percent.
It will be crucial whether the growth rates projected by AMD for the server CPU division can be maintained if individual cloud providers should slow their AI investments. For companies operating AI applications via rented cloud computing power, the competition between AMD and Nvidia will ultimately determine how much the costs for this infrastructure rise or fall in the long term.
