For years, quantum computing has being pointed as a game-changer for finance, but last year a pivotal shift happened—it went from theory to urgency. Financial institutions have moved past speculation and into experimentation, driven by new cryptography tech threats and the chase for computational advantage. As Moody’s put it in its end-of-year review, the financial sector has moved from “talking the talk” to “needing to walk the walk”.
Quantum computing is a technology that leverages the principles of quantum mechanics to perform calculations much faster than traditional computers. Instead of classical bits (0 or 1), it uses qubits, which can represent multiple states simultaneously. This enables highly efficient, parallel processing of complex problems, with potential applications in finance, healthcare, and scientific research.
JPMorgan Chase, a frontrunner in this race, demonstrated quantum key distribution for secure communications and experimented with quantum-secured networks. But the most tangible area of progress was cybersecurity.
After the US National Institute of Standards and Technology (NIST) finalized new post-quantum cryptographic standards, urgency spread. Singapore’s MAS committed S$100 million to quantum tech, warning banks of quantum-era cyber threats. In Europe, institutions like Banco Santander are pushing for quantum-safe transitions by 2030 under regulatory pressures like the EU’s DORA Act. IBM and Mastercard have also teamed up to develop quantum-resilient systems, through its Quantum Safe consortium.
Beyond defense, the offensive use cases are catching up. Citi and Classiq are leveraging Amazon Braket to explore quantum-powered portfolio optimization. Quantum-enhanced Monte Carlo simulations, led by firms like Moody’s and IBM, promise to accelerate risk modeling with potential quadratic speedups. Spanish startup Multiverse Computing is piloting quantum tools for credit scoring.
Still, there’s a gap between promise and performance. According to McKinsey, while finance ranks among the most promising sectors for early quantum value, meaningful commercial advantage hinges on breakthroughs in both hardware and algorithm design. The firm forecasts a potential $700 billion to $1 trillion total impact across sectors by 2035, with finance as a core driver—but also stresses the sector needs clearer paths from pilot to profit.
This year, 2025, is being hailed by insiders as the “Year of Quantum”—not because the tech is suddenly ready, but because stakeholders can no longer afford to wait. As the ecosystem of regulators, banks, and tech firms grows louder, the question shifts from “if” to “how soon”. The race is no longer about who understands quantum theory best, it’s about who implements it fastest, securely, and with measurable return.
