Calix is trading at $33.15, down 4.04%, amid broader market weakness. - The S&P 500, NASDAQ Composite, and Dow Jones are all lower; the 10-year Treasury yield is approximately 5.14%, pressuring growth and technology stocks. - Calix reached a new 52-week low during the session. - No clear company-specific catalyst was identified for September 24, 2026; a shareholder investigation announced September 22 remains recent background news.