Bernstein's analysis of the emerging quantum computing market finds no obvious single winner among competing hardware modalities. The firm highlights superconducting, trapped-ion and neutral-atom approaches as each possessing unique benefits, and places the likely arrival of a commercially meaningful quantum advantage - defined as the point when a quantum system outperforms classical computers on a commercially meaningful task - around 2030.
Using Boston Consulting Group (BCG) estimates, Bernstein sizes the quantum computing total addressable market (TAM) at $90 billion to $170 billion per year by 2040. Discounting that future value back to 2026 at a 12% rate yields an approximate present-value TAM of $26.6 billion.
To translate public market valuations into implied long-term market shares, Bernstein applies a 28x price-to-earnings multiple and assumes a 30% net margin - parameters drawn from semiconductor peers such as Nvidia, Broadcom and TSMC. With those inputs, the research house reverse-engineers market-share implications from the current market capitalizations of six listed pure-play quantum companies.
Bernstein finds the combined implied share of those six public pure-plays equals 24% of the long-term TAM. The remaining 76% is attributed to larger incumbents - including IBM and Google - and a set of private players such as Alice & Bob and Pasqal.
Implied market shares and valuations for the six public pure-plays
- IonQ: market capitalization of $21.19 billion and 2026 consensus revenue estimated at $260 million - implies an 11% market share.
- D-Wave Quantum: market cap of $8.75 billion with estimated 2026 revenue of $43 million - implies a 5% share.
- Rigetti Computing: market cap of $6.87 billion and estimated 2026 revenue of $24 million - implies a 4% share.
- Xanadu: market cap of $3.87 billion - implies a 2% share.
- Infleqtion: market cap of $3.18 billion - implies a 2% share.
- Quantum Computing: market cap of $2.25 billion - implies a 1% share.
These implied shares reflect Bernstein's valuation framework rather than forecasts of near-term revenue growth; they are back-calculated from current equity market values using the semiconductor-like margin and multiple assumptions noted above.
Ratings and roles of incumbents and suppliers
Bernstein assigns IBM a "market-perform" rating with a price target of $280, noting IBM's positioning as the principal driver of the hybrid quantum-classical model through its Quantum-Centric Supercomputing architecture. Infineon is rated "outperform" with a price target of 974, a view tied to Infineon's role as the leading foundry supplying trapped-ion quantum processing units to IonQ and other customers.
Modality competition and remaining early-stage approaches
The report emphasizes that it remains too early to declare a single modality the ultimate winner. Progress is clouded by limited public disclosure from several private companies and the rapid pace of technical innovation. Bernstein notes that photonic, topological and silicon-spin architectures remain at an early stage of development.
BCG's revenue trajectory used in the analysis places provider revenue at $1 billion to $2 billion annually before 2030, rising to $15 billion to $30 billion in the 2030-2040 decade, and ultimately reaching $90 billion to $170 billion beyond 2040 under a scenario of full fault-tolerance.
Takeaway
Bernstein's work paints a picture of a large but distributed long-term market where public pure-plays currently represent only a portion of expected value. Incumbent technology companies and private firms are expected to capture the majority of the opportunity, and the technological route that will dominate remains undecided as of the report's publication.