Micron sees memory demand doubling to $1T by 2027 as AI reshapes chip market

Memory chip demand has surged as technology companies have accelerated their data center infrastructure spending, and Micron Technology has been a major beneficiary. With the memory market forecast to reach more than $1 trillion（約160兆円） in 2027—up from over $800 billion（約130兆円） this year—the company argues it is positioned for sustained growth.

Historically, the memory chip market has been highly cyclical. Demand spikes when new applications emerge, driving suppliers to expand production capacity. Eventually, supply outstrips demand, prices collapse, and the cycle repeats. Some observers worry that today's surge is simply another temporary boom phase. However, recent McKinsey research indicates the overall AI semiconductor market is expanding, with a forecast to reach between $1.5 trillion（約240兆円） and $1.8 trillion（約290兆円） by 2030, and memory processors expected to account for nearly 30% of that total.

Micron's CEO Sanjay Mehrotra told investors on the fiscal Q3 2026 earnings call that "the memory industry has been structurally transformed by the proliferation of AI" and that "we are only in the early innings of the significant innovation and productivity that can be unleashed in every part of the global economy over time." Mehrotra's outlook extends beyond data centers to emerging uses. He highlighted "exciting possibilities enabled by robotics and humanoids, as well as fully autonomous vehicles," which he said "portend a robust long-term demand environment for memory and storage." These new technologies will require substantial memory capacity to run advanced AI systems and make complex real-time decisions. Morgan Stanley estimates there will be 1 billion humanoid robots globally by 2050, with a potential market size of $5 trillion（約800兆円）—a scale that supports Micron's bullish long-term view.

Micron has already captured significant gains from the current cycle. Shares have risen 687% over the past year. In fiscal Q3 2026, sales surged 45% to nearly $41.5 billion（約6.6兆円）, and adjusted earnings jumped more than 1,300% year over year to $24.67 per share. The stock trades at a price-to-earnings ratio of 23, which the company notes is modest compared to the tech sector average of 37, suggesting room for further appreciation if the long-term demand thesis holds.

The memory chip market has historically been cyclical—suppliers ramp capacity when demand surges and prices rise, only to face oversupply and price collapse as new capacity floods the market. However, Micron's management and recent McKinsey research suggest this cycle differs fundamentally because AI demand is structural rather than temporary. CEO Sanjay Mehrotra emphasized on the fiscal Q3 2026 earnings call that the memory industry itself has been "structurally transformed by the proliferation of AI," and the company is only "in the early innings" of the opportunity ahead. The forecast that memory processors will account for nearly 30% of the AI semiconductor market by 2030—valued between $1.5 trillion（約240兆円） and $1.8 trillion（約290兆円） overall—underscores the scale of this shift. Micron has already captured substantial gains, with shares rising 687% over the past year and Q3 sales jumping 45%, but management's confidence rests not on current data center spending alone but on future demand from robotics and autonomous vehicles, categories Morgan Stanley expects could grow to a $5 trillion（約800兆円） market (with 1 billion humanoid robots) by 2050.

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