[US Stock Market Movement] AXT Shares Plunge on September 28: Slowdown in AI Training, High Interest Rates, and Pullback from Highs

AXT September 28: Analysis of Sharp Decline

Keywords: Slowing AI training, High interest rates, Pullback from highs

1. On September 28, 2026, news of OpenAI suspending high-end model training sparked concerns about a slowdown in data center investment. The semiconductor sector weakened in tandem, with chip stocks such as Arm, Intel, AMD, and Micron declining, putting pressure on the optical communications and semiconductor growth sectors to which AXT belongs.

2. On September 28, 2026, the yield on the US 30-year Treasury bond rose to 5.54%, a multi-year high. High interest rates increased the discounting pressure on the valuations of growth technology stocks and triggered a reassessment of financing costs and capital returns for AI infrastructure.

3. As of September 28, 2026, AXT had risen 348.62% year-to-date, but declined by 8.23% over the past five days. Technical pullbacks and profit-taking pressures remain following the previous rapid increase, amplifying stock price volatility.

(Disclaimer: This content is a summary generated by AI technology based on publicly available information and is for reference only. It does not constitute investment advice.)