Key Highlights

  • AXTI shares fell 6.68% to $73.67 at Monday's close on September 28, 2026, while the Russell 2000 slipped 0.69%.
  • AXT makes substrate wafers, such as indium phosphide and gallium arsenide, used in data-center connectivity, optical communications and wireless applications.
  • Its products feed the end markets that drive the chip cycle, so the stock tends to trade with semiconductors.
  • Arm, Qualcomm and Intel also finished lower, and the Nasdaq Composite dropped 0.92% to 26,820.38 in the session.

Shares of AXT (NASDAQ:AXTI) ended Monday, September 28, 2026 lower by 6.68%, at $73.67. The company produces compound semiconductor substrate materials.

Latest Developments

AXTI shares declined at Monday's close as the semiconductor group finished lower.

AXT, Inc. produces compound semiconductor substrate materials.

Financial and Business Position

AXT supplies materials used in semiconductor manufacturing, which ties the stock to the fortunes of the chip Supply chain.

AXT sits Upstream in the chip supply chain, making substrate wafers, such as indium phosphide and gallium arsenide, that serve as the foundation for a range of specialty semiconductors used in data-center connectivity, optical communications, wireless and other applications. Because its products feed into the same end markets that drive the broader chip cycle, and into the connectivity and data-center themes tied to artificial intelligence, AXT tends to trade with the semiconductor group. AXT’s substrate business, capacity and customer relationships are not altered by a single day of trading; what changed was sentiment toward the semiconductor complex and the level of interest rates.

Stock-Market Context

The Nasdaq Composite led the declines on Monday, falling 0.92% to 26,820.38, while the S&P 500 lost 0.77% to 7,683.69 and the Dow Jones Industrial Average slipped 0.67% to 51,481.51. The Russell 2000 declined 0.69%.

A rejected Iranian proposal kept US-Iran tensions elevated and oil firm, while the 10-year Treasury Yield pushed past 5.2% to its highest level in nearly two decades.

Arm (NASDAQ:ARM), Qualcomm (NASDAQ:QCOM) and Intel (NASDAQ:INTC) also fell, and the Nasdaq Composite dropped 0.92% to 26,820.38.

Substrates and the Semiconductor Group

AXT closed Monday lower with the semiconductor group in a weak Nasdaq. Its role in the chip materials chain ties it to sentiment across the industry.