On June 23, D-Wave Quantum rose 5.68% in regular trading, trading at $25.41/share, with turnover of $572 million. The rally was driven by the company's recent launch of the industry's first gate-model quantum computing simulator designed for error-aware programming, combined with continued institutional endorsement.

The simulator enables developers to gain real-time visibility into processor error behavior and optimize application workflows accordingly. Meanwhile, Mizuho Securities raised its target price on D-Wave from $29 to $35, maintaining an Outperform rating, following the company's inaugural analyst day. Mizuho highlighted D-Wave's sustained leadership in quantum annealing and its clear technical roadmap toward fault-tolerant gate-model quantum computing, which significantly bolsters confidence in the company's long-term growth trajectory.

The stock had previously declined over 20% in June amid pressure from CEO Alan Baratz's $17.95 million share sale and weak Q1 results showing revenue of approximately $2.86 million, down 81% year-over-year. The combination of product innovation and institutional upgrades has driven a sustained oversold rebound.

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