AMD briefly tops $1 trillion market cap as AI push fuels record rally, shares up 9%

AMD briefly tops $1 trillion market cap as AI push fuels record rally, shares up 9% Reuters The logo of semiconductor company Advanced Micro Devices (AMD) is displayed over a booth at the Web Summit digital trade show in Vancouver, British Columbia, Canada Synopsis Advanced Micro Devices briefly crossed one trillion dollars in market capitalization.

This milestone placed AMD among elite chipmakers reaching this valuation.

The company's shares saw a significant increase following this achievement.

AMD is now considered Nvidia's closest competitor in graphics processing units.

This event highlights the growing importance of AI computing in the semiconductor industry.

By ETMarkets.com Sep 21, 2026, 09:49:00 PM IST Follow us Advanced Micro Devices (AMD) briefly crossed $1 trillion in market capitalisation for the first time on Monday, joining a select group of chipmakers to reach the milestone as investors bet on its growing role in artificial intelligence computing.ADVERTISEMENT AMD shares were last up 9% at $610 after touching a record high of $613.92, briefly lifting the company’s valuation above $1 trillion.The milestone capped a sharp rally for the Santa Clara, California-based company, widely considered Nvidia’s closest competitor in graphics processing units.

For live updates on US Markets, click here AMD became the fourth US chipmaker to surpass a $1 trillion valuation, after Nvidia, Broadcom and Micron.

Nvidia crossed the threshold in 2023 and is now the world’s most valuable company, with a market value exceeding $5 trillion.The company has accelerated its AI product launches and expanded beyond individual chips into complete systems combining processors, networking equipment and related hardware, strengthening its ability to compete with Nvidia.ADVERTISEMENT AMD is also benefiting from rising demand for central processing units used alongside graphics processors in servers running AI inference workloads.

The stock has since rallied more than 26%.ADVERTISEMENT ADVERTISEMENT Other chip stocks also advanced on Monday.