Applied Optoelectronics is trading 4.52% higher at $70.56 on October 26, 2026, amid a broader market rebound, with no confirmed company-specific catalyst. - The S&P 500 is up 0.92%, while the Nasdaq Composite is up 1.27%. - The shares are higher following several sessions of declines. - The company's latest listed releases are dated October 15 and earlier; no fresh company-specific announcement was identified.