Top Premarket Decliners

07:40 AM EDT, 09/17/2026 (MT Newswires) -- Fluence Energy (FLNC) shares were down 21% pre-bell Thursday after the company lowered its fiscal 2026 revenue guidance, citing ongoing supply chain issues impacting its US production. Viant Technology (DSP) stock was 14% lower after the company launched an underwritten public offering of 8.5 million Class A shares by a selling stockholder. Aeluma (ALMU) shares were down 15% after the company posted fiscal Q4 results. FlyExclusive (FLYX) stock was 8% lower, swinging from a 7% rise in Wednesday's session.