Rigetti vs. IBM: Which Quantum Computing Stock Has Better Prospects?

A Zacks analysis compares Rigetti Computing (RGTI) and IBM (IBM) in the quantum computing sector, noting RGTI's 8.2% year-to-date stock decline versus IBM's 17.6% gain and a higher price/book ratio. While RGTI focuses on innovative hardware and targets a 108-qubit system by late 2025, IBM leverages its full-stack model and global infrastructure, targeting quantum advantage by 2026; Zacks estimates point to an 18.63% sales decline for RGTI in 2025, while IBM is projected to grow sales and earnings by 5.5% and 6%, respectively, leading to a Zacks Rank #3 (Hold) for IBM versus a Zacks Rank #4 (Sell) for RGTI.

Analysis

International Business Machines Corporation (IBM) demonstrates stronger near-term prospects in the quantum computing sector compared to Rigetti Computing (RGTI), evidenced by IBM's 17.6% year-to-date stock gain versus RGTI's 8.2% decline and a more favorable price/book ratio of 8.92 for IBM against 19.43 for RGTI. Technologically, IBM leads with its 133-qubit Heron processor and scalable systems like the 1,121-qubit Condor, integrated into its Quantum System Two, while Rigetti's Ankaa-3 system offers 84 qubits, with plans to exceed 100 qubits by year-end 2025. IBM's business model encompasses a full-stack approach with over $1 billion in cumulative quantum revenue and a network of over 280 partners, contrasting with Rigetti's hardware-focused model targeting niche segments and relying on partnerships like a $250M deal with Quanta. Growth strategies differ significantly: IBM targets quantum advantage by 2026 through substantial R&D and global infrastructure, whereas Rigetti focuses on modular system scaling and aims for a 108-qubit system by end-2025, though its efforts are constrained by finances. Zacks Consensus Estimates project a 5.5% sales growth and 6% earnings growth for IBM in 2025, with earnings estimates trending upward. Conversely, RGTI is expected to see an 18.63% sales decline in 2025, although its loss per share is projected to narrow to 5 cents from 36 cents, with estimates also trending upward. This fundamental divergence is reflected in their Zacks Ranks: IBM holds a #3 (Hold) with a Growth Score of 'A', while RGTI carries a #4 (Sell) with a Growth Score of 'B', suggesting IBM offers greater stability and commercial traction despite Rigetti’s innovative potential.

Key Decisions for Investors

• Investors seeking exposure to the quantum computing sector with a preference for stability and established commercial pathways may find IBM a more suitable investment, given its strong financial footing, projected 2025 sales and earnings growth of 5.5% and 6% respectively, and its comprehensive full-stack approach.
• For those with a higher risk appetite, Rigetti Computing presents a speculative opportunity; while facing a projected 18.63% sales decline in 2025 and a Zacks #4 (Sell) rating, its innovative modular technology and potential for narrowing losses could offer upside if it successfully navigates its current financial and customer base limitations.