AMD Stock Tops $1 Trillion Market Cap for First Time as Shares Surge Roughly 9% to Record High

Advanced Micro Devices shares jumped about 9% on Monday to a record high, pushing the chipmaker's market value above $1 trillion for the first time, according to CNBC. A separate Motley Fool report published on Yahoo Finance put the intraday gain at 9.4% as of 10:57 a.m. ET.

Shares Hit a Record High

CNBC reported that AMD shares touched an intraday high of $613.92, the level that lifted the company's market capitalization just above the $1 trillion threshold. The move extended what CNBC described as a five-day winning streak, during which AMD shares had gained about 24%.

Recorded closing prices show the run-up into that streak was uneven rather than a straight climb. Based on Gentsy market data, AMD closed at $516.13 on Sept. 11, 2026, slipped to $493.41 on Sept. 14, then rose in each subsequent recorded session to $559.82 on Sept. 18, 2026. By our calculation ($559.82 minus $516.13, divided by $516.13), that is a gain of roughly 8.5% between those two recorded closes. That is a separate window from the roughly 24% five-day streak CNBC cited through Monday's trading, which in our reading reflects more recent sessions, including Monday's surge itself.

Two Explanations for Monday's Jump

The available reporting offers two distinct explanations for Monday's rally, and neither publication frames the other's rationale as confirmed. CNBC characterized the move as part of a broader AI buildout rally that has lifted chip stocks throughout the year, noting that the trend "is showing few signs of slowing, despite the public backlash against data centers and concerns about the underlying safety of large language models."

The Motley Fool report, published on Yahoo Finance, attributed the surge instead to news that Meta's new AI agent app, Muse, had reportedly reached the No. 1 spot among free apps on Apple's App Store. The report reasoned that AI agents such as Muse rely heavily on central processing units, which could lift demand for AMD's CPU lineup. That link between the app's ranking and AMD's stock move is the Motley Fool's own interpretation and has not been confirmed by AMD.

Q2 Results and Forward Comments

AMD's most recent quarterly results, cited by both outlets, show the scale of the AI-driven growth investors are pricing in. The company reported second-quarter revenue of $11.54 billion, up 50% from $7.69 billion a year earlier, according to CNBC. Its Data Center unit posted sales of $6.7 billion, up 107% year over year. The Motley Fool report added that non-GAAP diluted earnings per share rose 246% to $1.66 in the quarter, which ended June 27. Despite beating expectations, AMD shares fell after that report was released last month, per CNBC.

On last month's earnings call, CNBC reported, AMD CEO Lisa Su said the company expected to double data center sales in 2027. CNBC also noted that Nvidia CEO Jensen Huang said last week he expected his company to double the number of chips it sells next year. Both are forward-looking statements from company executives, not independently verified outcomes.

Growth Targets and Partnerships

The Motley Fool report also cited AMD leadership comments that the server CPU market could grow by 50% by 2030, reaching a total addressable market of $220 billion. Earlier this year, according to the same report, Meta and AMD expanded their strategic partnership to build additional AI infrastructure capacity using AMD's CPUs and GPUs.

AMD Still Trails Nvidia by a Wide Margin

Even after Monday's rally, AMD remains far smaller than rival Nvidia. CNBC reported that AMD stock is up more than 180% for the year, yet the company's roughly $1 trillion valuation is still well behind Nvidia, whose market cap stands at about $5.4 trillion. The gap underscores how, despite AMD's rapid AI-driven growth, Nvidia continues to dominate the AI chip market by scale.

Bottom Line

AMD's climb past a $1 trillion market cap marks a symbolic milestone for a company that has more than doubled its data center revenue over the past year, but the reporting behind Monday's specific 9% jump is split between a broad AI infrastructure narrative and a more speculative link to a single app's App Store ranking. Investors weighing the move should note that AMD's own growth targets, and those attributed to Nvidia's CEO, are stated expectations from company executives rather than confirmed results.