Quantum Computing Market Outlook (Bernstein Analyst Note, 13 June 2026)

Bernstein, covering U.S. IT hardware and European semiconductor players, projects that quantum computing will generate a total addressable market (TAM) of $90 billion to $170 billion annually by 2040. Using a 12 % discount rate, the present‑value of that TAM as of 2026 is approximately $26.6 billion.

The firm backs its valuation with a 28× price‑to‑earnings multiple and assumes a 30 % net‑margin drawn from semiconductor peers such as Nvidia, Broadcom and TSMC. Applying this framework to six publicly listed pure‑play quantum companies yields an implied market‑share distribution that collectively accounts for 24 % of the long‑term opportunity, leaving 76 % to larger entities (IBM, Google) and private players (Alice & Bob, Pasqal).

Company‑Level Valuations and Market Shares

  • IonQ: market capitalisation $21.19 billion, 2026 consensus revenue $260 million, implied market share 11 % (largest pure‑play).
  • D‑Wave Quantum: market capitalisation $8.75 billion, 2026 revenue estimate $43 million, implied share 5 %.
  • Rigetti Computing: market capitalisation $6.87 billion, 2026 revenue estimate $24 million, implied share 4 %.
  • Xanadu: market capitalisation $3.87 billion, implied share 2 %.
  • Infleqtion: market capitalisation $3.18 billion, implied share 2 %.
  • Quantum Computing (ticker QBTS): market capitalisation $2.25 billion, implied share 1 %.

Analyst Ratings and Price Targets

  • IBM is rated "market‑perform" with a price target of $280, highlighted as the primary driver of the hybrid quantum‑classical paradigm via its Quantum‑Centric Supercomputing architecture.
  • Infineon receives an "outperform" rating with a price target of €74, reflecting its role as the leading foundry supplying trapped‑ion quantum processing units to IonQ and other players.

Modality Competition

Bernstein notes that it is "too early to call a clear winner" among the three leading quantum hardware approaches—superconducting, trapped‑ion, and neutral‑atom—due to limited public disclosure from private firms and rapid innovation cycles. Emerging approaches such as photonic, topological, and silicon‑spin remain in early‑stage development.

BCG Revenue Projections for Quantum Providers

  • $1 billion‑$2 billion annual revenue expected before 2030.
  • $15 billion‑$30 billion annually between 2030 and 2040.
  • $90 billion‑$170 billion annually beyond 2040 under a fully fault‑tolerant quantum ecosystem.

Overall Significance

The analysis suggests that while no single technology or company will dominate the quantum computing landscape in the near term, a diversified set of players—including established semiconductor firms, pure‑play quantum startups, and large tech conglomerates—will collectively capture the expanding market as quantum advantage becomes commercially viable around 2030.