Quantum Stocks Rally After D-Wave Price-Target Hike

Quantum stocks rallied on June 15, 2026 (ET) after Mizuho raised its price target on D‑Wave Quantum Inc. (QBTS) and analysts renewed bullish commentary on Quantum Computing Inc. (QUBT) product launches. The move lifted D‑Wave, Quantum Computing, Rigetti Computing, Inc. (RGTI), and IonQ, Inc. (IONQ) in a sector-wide risk-on advance.

D‑Wave Upgrade Drives Sector Rally

The session involved the four publicly traded pure-play quantum-computing companies: IonQ, D‑Wave, Quantum Computing, and Rigetti. Quantum Computing rose about 13%, D‑Wave roughly 12%, Rigetti about 9%, and IonQ about 6%, reflecting a broad advance rather than a single-company event.

The most concrete catalyst was Mizuho’s price-target hike on D‑Wave, following two earlier analyst increases in June. These upgrades were cited as the proximate driver of D‑Wave’s gains, although the Mizuho note did not address Rigetti.

D‑Wave has emphasized technical progress in its Advantage2 annealing systems and gate-model program, reporting a 314% year-over-year improvement in Advantage2 performance and a 114% gain over six months. Analysts have cited these advances as the foundation for their bullish outlook.

No new 8-K filings, earnings releases, or deal announcements for any of the four companies appeared in the 72 hours before the session. Market participants attributed the moves mainly to analyst activity and sector beta rather than fresh company disclosures.

Peer Stock Moves and Policy Context

Analysts reiterated bullish views on Quantum Computing, highlighting upcoming product launches, growing commercial adoption, and long-term opportunities in quantum software and hardware. The stock had fallen about 53% over the prior 12 months, a decline some analysts considered overdone.

Rigetti’s gains were described as sympathy-driven following the D‑Wave upgrade and linked to broad investor enthusiasm for quantum hardware. The Mizuho commentary focused solely on D‑Wave, with no new Rigetti-specific upgrades.

IonQ joined the rebound with mid-single-digit gains but remains volatile after recent selling. Prior company context includes a 755% year-over-year increase in first-quarter revenue and management guidance forecasting an FY26 adjusted EBITDA loss between $310 million and $330 million as it invests to scale hardware and software.

The sector’s momentum also reflects a structural policy backdrop. The U.S. government has committed roughly $2.0 billion to quantum-computing programs, supporting a multi-month rally that has lifted quantum stocks about 50% since late March. Without same-day filings, near-term momentum depends on follow-up analyst notes or material product or contract disclosures to sustain company-specific gains.