Alphabet recently made breakthroughs with its Willow chip that caused shares of quantum computing stocks Rigetti and D-Wave to soar. Many industry experts estimate useful quantum computing is one or two decades away,

Trapped-ion quantum computing leader IonQ (NYSE: IONQ) is emerging as a potential leader in the commercialization of quantum computing through its trapped-ion technology approach. Unlike traditional superconducting quantum competitors,

Based on the forecast of one Wall Street analyst, two of the hottest quantum computing stocks could plummet by 54% and 80%, respectively. History, utility, and operating performance are all headwinds for high-flying quantum computing stocks.

Quantum computing was one of the hot trends of the past few months as stocks have doubled or more following Alphabet's (NASDAQ: GOOG) Willow announcement. Investors looking for any way to play the quantum computing space have pushed microcap stocks into the stratosphere.