Quantinuum's $1.68 Billion Nasdaq IPO Prices Quantum's Timeline Into Public Markets

Quantinuum closed an upsized IPO at $60 per share, raising $1.68 billion in gross proceeds and listing on Nasdaq as QNT. Days earlier it demonstrated, with Microsoft, logical qubits performing roughly 800x better than the underlying physical error rates, and mid-June brought an HPC and AI integration deal with HPE. Public markets are now underwriting the fault-tolerance race at scale, and that kind of capital compresses timelines. Quantinuum's own roadmap targets a fully fault-tolerant system by 2030, squarely inside the window that matters for exposed crypto keys.