For much of the AI boom, the chip trade has revolved around a single name. That script is now being rewritten. According to an analyst cited by CNBC, resurgent demand for CPUs and efficiency gains in memory could propel more chipmakers toward a $2 trillion market capitalization, with AMD and Micron the two companies in focus. The scenario reflects a quarter in which value creation spread across the processors and memory that AI data centers depend on, rather than concentrating in a single product category.

The numbers behind the rally

Micron added roughly $920 billion in market value during the second quarter of 2026, a gain of 240%. AMD tacked on about $615 billion, up 186%. Intel joined the rally as well, adding around $480 billion for a 216% gain. Taken together, the three chipmakers added roughly $2 trillion in combined value in a single quarter. Market capitalization — the total value of a company's outstanding shares — is the yardstick for those milestones, and the $1 trillion level is one only a handful of the world's largest companies have ever reached.

Micron was the first to reach the $1 trillion mark, hitting that milestone in May 2026. The memory maker posted revenue growth of more than 400% year over year alongside gross margins of 84.9%, meaning roughly 85 cents of every revenue dollar remained after direct production costs.

AMD followed later, crossing the $1 trillion threshold between September 21 and 23, 2026. The move came after the company raised its total addressable market estimate to $2 trillion to $3 trillion by 2030. Total addressable market, or TAM, represents the size of the overall opportunity a company believes it can compete for. AMD is effectively signaling to investors that the data center opportunity for GPUs, CPUs and related hardware is far larger than previously assumed.

Why CPUs and memory are back in fashion

The research findings describe a surge in CPU and memory requirements tied to AI-driven data center expansions. High-bandwidth memory — a fast, densely stacked type of memory placed close to AI accelerator chips — has been a particular driver, lifting both revenue and margins across the sector. That detail matters because memory has long been treated as the commodity-like, lower-margin side of the chip business, a profile the current cycle has upended.

Wall Street has taken notice. UBS analyst Timothy Arcuri set a $670 price target on AMD, suggesting the stock had room to push past a $1 trillion valuation.

Intel's slower comeback

Intel's recovery offers a useful contrast. The company has benefited from renewed CPU demand, particularly as AI workloads shift toward edge computing — processing done on or near devices rather than inside centralized data centers.

Even so, Intel's valuation recovery has lagged behind both AMD and Micron. Its 216% second-quarter gain was impressive in percentage terms, but it started from a lower base and has not matched its rivals in absolute market value.

What this means for the chip sector

AMD's revised $2 trillion to $3 trillion TAM projection stands as the clearest signal of management confidence. Still, the $2 trillion market cap scenario remains a possibility, not a forecast. The research findings note that no immediate projections point to either AMD or Micron reaching $2 trillion individually or in combination in the near term.

The research findings also flag elevated valuations and competitive risks as the key caution points. Micron's 84.9% gross margin is extraordinary by historical memory-industry standards — an industry that has long swung on the balance between capacity additions and demand. The question investors will be asking is how durable that figure is once new supply comes online, which makes upcoming capacity announcements and margin reports the numbers to watch in the quarters ahead.