TSMC is trading now at $46.01, down 3.12% as semiconductor shares sell off broadly, driven by surging Treasury yields, elevated technology valuations, profit-taking after strong gains, and rising geopolitical and oil-price risks. - The 30-year Treasury yield reached its highest level since 2007. - Micron, Marvell, and Intel also declined sharply. - No new company-specific negative catalyst was identified; recent TSMC investment and revenue news was positive rather than explanatory.