8 Best Quantum Computing Stocks to Buy in 2026

Quantum computing stocks experienced significant volatility in July 2026, with the S&P Kensho Global Quantum Computing Technologies Index losing 21.4% despite a 31.6% annual gain. Government investments, geopolitical tensions, and tech companies' commercialization efforts influence the sector, though experts caution that large-scale commercial quantum computing remains distant. Quantinuum's $1.7 billion IPO and advancements in error correction highlight ongoing interest, with Amazon, Microsoft, IBM, and others leading the field.