Is D-Wave Quantum a Better Quantum Computing Stock to Buy Than IonQ?

Quantum computing stocks D-Wave Quantum (QBTS) and IonQ (IONQ) have seen significant gains, with D-Wave up nearly 1,200% in the last year and IonQ up roughly 380%. D-Wave boasts impressive revenue growth of 509% year-over-year in Q1 2025 and touts the world's largest quantum computer, while IonQ's revenue has grown at a compound annual rate of 170% since 2021 and expects nearly double revenue in 2025. Despite the potential $880 billion market by 2040, both companies face risks due to lack of profitability and intense competition, however, the author favors IonQ due to its higher revenue, larger intellectual property portfolio, and strategic acquisitions.

Analysis

D-Wave Quantum (QBTS) and IonQ (IONQ) have exhibited substantial stock price appreciation over the last 12 months, with QBTS returning nearly 1,200% and IONQ approximately 380%, reflecting significant investor interest in the nascent quantum computing sector. D-Wave reported a 509% year-over-year revenue increase in Q1 2025, holds a cash position of $304.3 million which management believes can fund operations until profitability, and recently launched its sixth-generation Advantage2 quantum computer, touted as capable of solving problems beyond classical supercomputers; its market capitalization remains below $5 billion despite these gains. Conversely, IonQ, with a market capitalization exceeding $9 billion, experienced a slight year-over-year revenue dip in Q1 2025 but has demonstrated a compound annual revenue growth rate of 170% since 2021 and projects its 2025 revenue to nearly double. IonQ highlights its ion trap architecture, room-temperature operation, and superior error correction as competitive advantages, and its hardware is uniquely available on all three major cloud platforms. The quantum computing market is projected by McKinsey & Co. to potentially create up to $880 billion in economic value by 2040. However, both companies are pre-profitability and face intense competition, including from entities with greater financial resources. The article's author expresses a preference for IonQ, citing its reportedly higher current revenue levels compared to D-Wave, a larger intellectual property portfolio with 950 pending patents, and strategic acquisitions like ID Quantique and Lightsynq aimed at strengthening its position in quantum networking. The overall sentiment is mildly positive but speculative, acknowledging the high-risk, high-reward nature of these investments.

Key Decisions for Investors

• Investors considering exposure to the quantum computing sector should acknowledge the speculative nature and high volatility of stocks like QBTS and IONQ, suitable primarily for aggressive, long-term growth portfolios.
• Given the author's preference and IonQ's strategic positioning through cloud partnerships, IP development, and acquisitions, IONQ may warrant consideration, but its Q1 2025 revenue dip and path to profitability must be closely monitored.
• D-Wave's exceptional Q1 2025 revenue growth and technological advancements present a compelling case; however, investors should scrutinize its ability to sustain this momentum, achieve profitability, and compete effectively within its sub-$5 billion market cap context.
• Both investments carry significant risk; therefore, diligent monitoring of key milestones, including customer contract execution, technological validation, progress towards profitability, and the competitive landscape, is crucial before committing capital or adjusting positions.