Key Facts: Quantum Computing Inc has seen explosive moves recently. As of Oct 3, 2025, its stock trades around $19.98, up ~5% on the day google.com. This follows a volatile period: QUBT plunged ~11.4% on Oct 2 after news of its funding round and product launch swingtradebot.com, then rebounded Oct 3 amid a sector rally fastcompany.com. Trading volume has been very high. The shares have swung dramatically over 2025, from a 52-week low of $0.65 to a high of $27.15 google.com. Market cap is roughly $3.7 billion google.com. QUBT is included in several indexes: it joined the Russell 3000/2000 on June 30, 2025 quantumcomputinginc.com and the S&P Global BMI Index in late Sept ainvest.com. Recent headline events for QUBT include an oversubscribed $500M private placement in late Sept quantumcomputinginc.com, debut of a new “Quantum Secure Solution” at the ECOC conference swingtradebot.com quantumcomputinginc.com, and an Oct 1 SEC filing for existing shareholders to sell 26.87M shares investing.com. Corporate changes: long-time CEO Bill McGann retired in May, with Dr. Yuping Huang named Interim CEO quantumcomputinginc.com.