AAOG is trading at $0.58, down 3.93%, as weakness in its underlying stock may be amplified by its target of 2× daily exposure to Applied Optoelectronics (AAOI). - AAOI fell 7.35% on November 4 amid concerns about AI-optics demand and data-center spending; its third-quarter results are scheduled for November 5 after the close. - Overnight semiconductor weakness and concerns about tighter AI data-center rules added sector pressure, while Nasdaq futures were down 0.76%.