On September 14, Amphenol fell 3.66% in regular trading, trading at approximately $79.88 per share, with turnover of $76.07 million.

On the news front, the U.S. Federal Communications Commission officially published its final rule titled \"Protecting Against National Security Threats to the Communications Supply Chain Through the Equipment Authorization Program\" in the Federal Register, set to take effect 30 days after publication. Following the formal implementation of the rule, the market exhibited a classic \"buy the rumor, sell the news\" reaction, with broad selling pressure hitting the electronic components and semiconductor sectors.

Within the Electronic Components sector where Amphenol belongs, peers declined sharply. Among individual stocks, Corning fell 7.85%, Coherent fell 7.22%, Vishay Intertechnology fell 5.36%, Belden fell 4.55%, and Littelfuse fell 4.23%. The sector-wide weakness underscored the systemic nature of the selloff rather than company-specific concerns. Notably, Amphenol had risen 3.15% just days earlier on September 11, supported by analyst consensus maintaining bullish ratings following the company's 1-for-2 stock split completed on September 3, with an average target price of approximately $100.25 implying over 20% upside.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)