5月21日电，美股量子计算概念股盘前冲高，D-Wave Quantum再涨近13%，隔夜飙涨近26%；Arqit Quantum涨超5%，SEALSQ CORP涨近5%。

Core Viewpoint - Quantum computing concept stocks in the US market experienced a significant pre-market surge, indicating growing investor interest and optimism in this emerging technology sector [1] Company Summaries - D-Wave Quantum saw a pre-market increase of nearly 13%, following an overnight surge of approximately 26%, highlighting strong market momentum and investor confidence in its growth potential [1] - Arqit Quantum experienced a rise of over 5%, reflecting positive market sentiment towards its business prospects and advancements in quantum technology [1] - SEALSQ CORP also rose nearly 5%, suggesting a favorable outlook among investors for its operations within the quantum computing space [1]