Barclays Sees Quantum Stocks Surging Toward 2027 Breakout

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•  06 May 2026
 

$IONQ IonQ and the broader quantum computing sector are back in focus on Wall Street, this time with a more substantive foundation than prior hype cycles. Barclays analysts project that by 2027, quantum systems could demonstrate genuine computational advantage over classical machines in specific problem sets, provided those demonstrations hold up under rigorous technical validation rather than controlled lab conditions. The opportunity driving institutional flows extends well beyond the pure-play names, encompassing Nvidia, Coherent, ASML, Applied Materials, Microsoft, Amazon, and additional infrastructure players across the full supply chain. The current market size sits at roughly $1 to $2 billion, with estimates pointing to tens of billions by end of decade and up to $100 billion or more by 2040.

The critical near-term milestone is 2027, when quantum systems are expected to prove superiority in solving certain problems under real-world conditions. By 2030, Barclays anticipates more fault-tolerant systems capable of moving the sector from scientific promise to broad commercial opportunity, a transition that would represent a meaningful multiple expansion event for names with direct exposure. Error correction remains the central technical barrier, as qubits are highly sensitive to noise, temperature, and interference. Reaching approximately 100 logical qubits, built on a stable layer derived from a large number of physical qubits, is identified as the threshold at which real-world advantage begins to emerge.

A common misreading of the investment case is assuming quantum computing replaces classical systems. In practice, quantum is expected to operate alongside existing infrastructure, excelling in materials simulation, chemistry, optimization, finance, logistics, and drug development where classical machines face combinatorial limits. Nvidia is already advancing a hybrid approach combining quantum processing with GPU and software layers. Quantum systems also require substantial classical computing surrounding them for simulation, error correction, workload management, and cloud connectivity, meaning demand for conventional processors and server infrastructure may actually increase rather than decline.

Pure-play names including IonQ, Rigetti Computing, and D-Wave Quantum carry direct sector exposure and move sharply when sentiment around quantum accelerates, but they also carry the highest risk given early revenue stages and long paths to profitability. Multiple competing hardware approaches, including trapped ions, superconductors, and photonics, may coexist, though some players may struggle to convert their technology into scalable commercial products. Quantum Computing Inc. is occasionally referenced in this context but is noted as particularly volatile and requiring caution given a gap between headline momentum and actual business execution.

Supply chain names offer broader and more durable positioning. Keysight Technologies covers test and measurement equipment essential to complex system development. Coherent brings photonics, lasers, and optical components. ASP Isotopes operates in isotope enrichment relevant to certain quantum technologies. These companies benefit from AI, data centers, photonics, and advanced chip infrastructure in parallel, reducing single-platform dependency. ASML, Applied Materials, and Lam Research provide equipment and processes potentially relevant to quantum hardware manufacturing, while Synopsys and Cadence contribute design and simulation tooling that becomes increasingly critical as system complexity grows.

Cloud access is expected to be the primary delivery channel for quantum computing, not on-premises hardware. Microsoft and Amazon already offer quantum processor access through cloud platforms, lowering the barrier for researchers and enterprises. IBM and Alphabet have maintained multi-year quantum research programs within much larger businesses, giving them runway to fund long-term development without reliance on near-term quantum revenues, though that same breadth limits direct investor exposure. On the cybersecurity side, the long-term risk of quantum systems breaking existing encryption standards is real but not imminent, while the preparation cycle for quantum-resistant encryption across banks, governments, insurers, and critical infrastructure represents a separate but related opportunity set building in parallel.

The next key trigger to watch is whether 2027 hardware demonstrations by leading quantum players clear independent technical scrutiny rather than curated lab conditions, as that validation event would be the first hard signal separating durable institutional positioning from narrative-driven flows across the sector.

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