The stock market's leading quantum computing pure-plays are giving investors a clear reason to be cautious.

Earlier this week, Wall Street celebrated the three-year anniversary of the start of the current bull market for the benchmark S&P 500 . While the evolution of artificial intelligence (AI) has played a key role in sending the broader market to new heights, AI isn't the only game-changing trend fueling investor optimism at the moment.

Wall Street and everyday investors are extremely excited about the prospects of quantum computing, which is evident in the trailing-12-month (TTM) returns for four popular pure-plays:

IonQ ( IONQ -9.42% ) : up 633%.

Rigetti Computing ( RGTI -14.94% ) : up 6,770%.

D-Wave Quantum ( QBTS -9.67% ) : up 4,330%.

Quantum Computing

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