IonQ stock slides after-hours as BlackRock stake filing lands and quantum shares cool
New York, January 21, 2026, 19:55 (EST) — After-hours trading IonQ Inc shares ended Wednesday down 4.5% at $48.33, holding steady in after-hours trading despite a widespread Wall Street rally. The decline is significant as quantum-computing stocks have once again become a gauge of risk appetite, prompting investors to swiftly offload the most volatile names when headlines shift. Tuesday’s tariff-driven…