Early trading Friday showed Rigetti Computing (NASDAQ:RGTI) up more than 10%, capping an amazing run in quantum computing companies and attracting ongoing heightened investor interest. Following the bump, the stock's now up 1,640% for the past six months.

Though it reports only $2.4 million in income in its most recent quarter, Rigetti's shares have surged 140% over the past five sessions and 640% in the past month, driving the business to a whopping $4.3 billion valuation. Along with Quantum Computing (NASDAQ:QUBT), which dropped 4.7% Friday, Rigetti's explosive climb has positioned it as one of the most explosive stocks to wrap up the year. With D-Wave Quantum (NYSE:QBTS) climbing 4%, IonQ (NYSE:IONQ) sliding 3.7%, and Arqit Quantum (NASDAQ:ARQQ) gaining 1.5%, other quantum companies showed variedresults.

• Warning! GuruFocus has detected 7 Warning Signs with RGTI.

Google's (GOOG, GOOGL) recent disclosure of its sophisticated quantum processor, Willow, has sparked investor enthusiasm. The progress has attracted fresh interest in the quantum computing industry, which has driven investment firms to start coverage of these businesses. These stock remain at the core of speculative interest and investing strategies driven by innovation as quantum computing keeps evolving.