QUBT ▼ -0.6% - Quantum Computing Inc. $QUBT QUBT QUBT - Quantum Computing Inc. to Showcase Quantum Secure Communications Beyond Quantum Key Distribution at ECOC 2026 Quantum Computing Inc. shares fell 0.6% today ahead of the company's planned presentation of quantum secure communications technology at ECOC 2026, an industry conference. The modest decline suggests investor caution despite the company's positioning of new capabilities beyond quantum key distribution. 18-SEP-2026 08:30 AM ET