Nyxoah is trading at $1.32 (-5.36%) as U.S. markets fall, creating a risk-off backdrop. - The S&P 500 is down 0.65%, while the Nasdaq is down 1.06%. - Higher oil prices and Treasury yields are weighing on equity valuations. No new Nyxoah announcement was identified for September 23, 2026. - The September 21 CFO transition remains relevant background but does not clearly explain today’s move.