Micron Technology’s ambitious bet on America’s semiconductor industry received a strong endorsement from investors Thursday after the memory chip giant unveiled billions of dollars in new investments designed to strengthen the domestic chip supply chain and meet surging demand fueled by artificial intelligence.
Shares of Micron climbed 7% following the announcement, extending what has already been a remarkable year for the company. It later paired some gains. The stock has surged more than 250% in 2026 as demand for high-bandwidth memory and other AI-related semiconductor products continues to accelerate.
Micron reached a $1 trillion market valuation for the first time earlier this year, reflecting Wall Street’s confidence in the company’s central role in the AI infrastructure race. The latest investment package includes up to $3 billion in strategic spending aimed at reinforcing critical parts of the U.S. semiconductor ecosystem.
A key component is a $500 million investment in Taiwan-based GlobalWafers, which will expand silicon wafer research, development, and manufacturing at its Texas facilities. The agreement also includes a 10-year supply contract that will secure Micron’s access to raw silicon wafers, one of the most essential materials used in semiconductor production.
“Securing a reliable supply of critical input materials is essential to supporting Micron’s long-term growth and technology roadmap,” Ben Tessone, Micron’s chief procurement officer, said in a company statement.
The supply agreement comes as semiconductor manufacturers increasingly seek to diversify production and reduce dependence on overseas suppliers following years of supply chain disruptions and growing geopolitical tensions.
Micron also announced that it is significantly increasing its long-term domestic investment plans. The company now expects to invest approximately $250 billion in the United States through 2035, raising its previous commitment by about $50 billion.
The expanded spending reflects soaring demand for memory chips that power AI servers, data centers and advanced computing systems. High-bandwidth memory has become one of the fastest-growing segments of the semiconductor industry as companies race to build infrastructure capable of supporting increasingly sophisticated AI models.
Micron’s investment strategy extends beyond supply chain partnerships. The company is also dramatically expanding its manufacturing footprint across the United States. Construction is already underway on two new fabrication plants at Micron’s headquarters in Boise, Idaho, projects expected to significantly increase the company’s domestic memory production capacity.
On Thursday, the company also marked another major milestone by pouring the first concrete for its new fabrication facility in Clay, New York. Micron has described the New York project as the largest semiconductor manufacturing site in U.S. history. Once completed, the campus is expected to play a central role in expanding American chip production while creating thousands of construction and manufacturing jobs over the coming decades.
The investments align with a broader industry trend in which leading chipmakers are committing hundreds of billions of dollars to build advanced manufacturing capacity in the United States. Federal incentives under the CHIPS and Science Act, along with growing concerns over supply chain resilience, have encouraged companies to shift more production closer to home.