Here's Why I Wouldn't Touch Rigetti Computing With a 10-Foot Pole

Core Viewpoint - Rigetti Computing is experiencing significant challenges in the quantum computing sector, particularly regarding accuracy and technology advancement, despite a recent rise in stock price and some positive analyst ratings [1][8]. Company Performance - Rigetti's stock price has seen a notable increase of over 45% in 2025 and more than 10% in 2026, but current market sentiment suggests caution [1][2]. - The current stock price is $23.45, with a market capitalization of $7.7 billion [2]. Technology and Competitiveness - Rigetti's quantum computing systems are reported to be over 1,000 times faster than those of competitor IonQ, but the company struggles with accuracy, achieving a two-qubit gate fidelity of only 99.5%, compared to IonQ's 99.99% [2][4]. - The company has not advanced to Stage B of the Quantum Benchmarking Initiative by DARPA, indicating a setback in its technological standing [5]. Challenges in Quantum Computing - Quantum computing systems, including those from Rigetti, are highly error-prone due to the instability of qubits, which are susceptible to external factors like vibrations and temperature changes [3]. - Rigetti's delay in launching its new 108-qubit Cepheus-1-108Q system is aimed at improving its error rate, highlighting ongoing challenges in achieving reliable performance [5]. Analyst Sentiment - Some analysts have expressed optimism about Rigetti, with Rossenblatt Securities initiating coverage with a "buy" rating and B. Riley upgrading the stock following an $8.4 million order from India's Centre for Development of Advanced Computing [7]. - Despite these positive mentions, the overall assessment suggests that Rigetti remains significantly behind its competitors in the quantum computing race [8].