Four quantum computing stocks closed higher on August 21 following earnings and an analyst rating change. D-Wave Quantum rose 8.46% to close at $20.39CITE:E2, Rigetti Computing gained 11.48% to close at $17.91CITE:E7, Quantum Computing Inc. climbed 9.58% to close at $8.92CITE:E9, and IonQ advanced 8.02% to close at $44.86CITE:E12. The same day, BMO Capital Markets set its rating on D-Wave Quantum to "outperform" with a $35 price targetCITE:E1.
| Company | Aug 21 Change | Closing Price |
|---|---|---|
| D-Wave Quantum | +8.46% | $20.39 |
| Rigetti Computing | +11.48% | $17.91 |
| Quantum Computing Inc. | +9.58% | $8.92 |
| IonQ | +8.02% | $44.86 |
Rigetti and Quantum Computing Inc. reported the sharpest revenue gains, while IonQ described its own results as a record quarter. Rigetti's second-quarter systems and components sales reached $4.1 million, up from zero in the same period a year earlierCITE:E8. Quantum Computing Inc.'s second-quarter revenue reached $5.6 million, up from $65,000 a year earlier and from $3.7 million in the prior quarterCITE:E10. IonQ reported earnings on August 5, which its chief executive called "the strongest quarter in company history"CITE:E13.
| Company | Metric | Latest Quarter | Prior Quarter | Year-Ago Quarter |
|---|---|---|---|---|
| Rigetti Computing | Systems & components sales | $4.1M | — | $0 |
| Quantum Computing Inc. | Total revenue | $5.6M | $3.7M | $0.065M |
D-Wave holds both quantum annealing and gate-model technology, which BMO Capital Markets says lets it address multiple types of quantum computing applications. BMO analyst Harsh Kumar said that holding both technologies allows D-Wave "to address different quantum computing applications and fully capture its overall total addressable market (TAM) opportunity"CITE:E3. Kumar cited Boston Consulting Group estimates that D-Wave's addressable market totals $450 billion to $850 billion, of which quantum annealing accounts for roughly $100 billion to $220 billion, with the remainder coming from the gate-model segmentCITE:E4.
| Segment | BCG Estimate |
|---|---|
| Total addressable market | $450B–$850B |
| Quantum annealing portion | $100B–$220B |
BMO expects D-Wave to give customers access to its gate-model system by 2028 while advancing commercialization of a complete quantum systemCITE:E5. D-Wave sold two quantum systems in 2026 and expects to sell two to three complete systems annually starting in 2027CITE:E6.
Both companies reported revenue climbing off a near-zero base, but their stated strategic direction differs. Rigetti's systems and components sales moved from $0 to $4.1 million year over yearCITE:E8, while Quantum Computing Inc.'s revenue moved from $65,000 to $5.6 million over the same span, also up from $3.7 million the prior quarterCITE:E10. Quantum Computing Inc. chief executive Yuping Huang said the company will keep pursuing "two complementary growth engines," including advancing its quantum technology roadmap using a differentiated room-temperature photonic architecture to build smaller, more scalable systems suited to real-world deploymentCITE:E11.
IonQ said it is broadening the channels through which researchers and enterprises can use its quantum computing technology. Following its August 5 earnings, which its chief executive called the company's strongest quarter on recordCITE:E13, IonQ announced a new partnership with Canadian Microelectronics earlier that same week, aimed at expanding access to quantum computing technology for Canadian researchers and enterprisesCITE:E14.
NVIDIA is building infrastructure that links its GPU systems directly to quantum hardware and error-correction software. At GTC 2026, NVIDIA introduced NVQLink through a new application programming interface called cudaq-realtime and shared demonstrations advancing quantum error correctionCITE:E15. The NVIDIA Accelerated Quantum Computing Research Center (NVAQC) integrates partners' quantum hardware with NVIDIA's GB200 NVL72 systems, which NVIDIA describes as providing developers and academia with the infrastructure needed to scale quantum computing hardware and applicationsCITE:E16. NVIDIA's CUDA-Q QEC software accelerates the BP-OSD decoding algorithm, delivering 29–35 times faster single-shot decoding compared with industry-standard decoders, and up to 42 times faster for high-throughput use cases that require decoding multiple syndromes simultaneouslyCITE:E17. NVIDIA's DGX Quantum system combines the Grace Hopper Superchip with Quantum Machines' OPX control system to deliver sub-microsecond latency between quantum control systems and GPUs, enabling GPU-accelerated real-time quantum error correction, calibration, and controlCITE:E18.
BMO Capital Markets' $35 price target on D-Wave QuantumCITE:E1 rests on a market-size estimate and a multi-year commercialization timeline rather than current revenue alone. Boston Consulting Group estimates D-Wave's addressable market at $450 billion to $850 billion, with quantum annealing representing $100 billion to $220 billion of that totalCITE:E4. BMO expects D-Wave to open customer access to its gate-model system by 2028 while advancing full quantum system commercializationCITE:E5, building on a base of two systems sold in 2026 and a projected two to three systems sold annually from 2027 onwardCITE:E6.
The August 21 rally links two different kinds of evidence: same-day stock moves of 8–11.5% across four namesCITE:E2CITE:E7CITE:E9CITE:E12, and revenue figures that grew off bases close to zero, such as Rigetti's move from $0 to $4.1 millionCITE:E8 and Quantum Computing Inc.'s move from $65,000 to $5.6 millionCITE:E10. BMO's $35 target on D-Wave and the $450–850 billion BCG market estimateCITE:E1CITE:E4 both depend on D-Wave hitting its own 2028 gate-model milestone and scaling from two systems in 2026 to two to three a year from 2027CITE:E5CITE:E6, while NVIDIA's decoder speedups of 29–42 timesCITE:E17 and sub-microsecond control latencyCITE:E18 point to infrastructure gains arriving on a separate track from any single quantum hardware vendor's roadmap.
Four quantum computing stocks closed higher on August 21 following earnings and an analyst rating change. D-Wave Quantum rose 8.46% to close at $20.
Rigetti and Quantum Computing Inc. reported the sharpest revenue gains, while IonQ described its own results as a record quarter.
D-Wave holds both quantum annealing and gate-model technology, which BMO Capital Markets says lets it address multiple types of quantum computing applications.
Both companies reported revenue climbing off a near-zero base, but their stated strategic direction differs.
Google is rolling out Motion Assist, a Play Services feature for Android 17 that places moving dots along the screen edges to track a vehicle's motion using the phone's accelerometer and gyroscope, aiming to reduce or eliminate motion sickness — two years after Apple shipped a similar Motion Cues feature in iOS 18.
OpenAI reinstated the 5-hour rolling usage limit for Codex and ChatGPT Work on Plus accounts starting August 25, 2026, restoring a dual-limit system that pairs the 5-hour cap with the existing weekly quota. OpenAI's Codex and ChatGPT lead Thibault Sottiaux confirmed the change on X, linking it to a usage surge after the GPT-5.6 Sol launch. Pro, Enterprise, and Edu plans remain unaffected for now.
More than 100 million Americans lack a primary doctor. Atlantic Health and K Health's AI platform, synced to Epic, undercuts $12k-$24k concierge fees.