While quantum computers evolve and become commercialized, IonQ, Rigetti Computing, D-Wave Quantum, and Quantum Computing Inc. are likely to lose money hand over fist. They'll also be issuing common stock and/or debt (if accessible) to bolster their balance sheets amid ongoing investments and operating losses.

Rigetti (RGTI) is down more than 10% from its highs after a parabolic rally. Here's why $40 is the key level to watch — and what it means for traders.

Shares of Rigetti Computing Inc (NASDAQ: RGTI) are surging Thursday morning amid reports suggesting the Trump administration is exploring taking equity stakes in several U.S. quantum computing firms.

Rigetti has seen its stock soar as it shows momentum in developing and commercializing quantum computing. Taiwan Semiconductor has been one of the biggest beneficiaries of growing artificial intelligence (AI) chip spending. Wall Street has a clear preference for one stock over the other.

Shares in the so-called Quantum Four publicly traded companies are seeing a boost on rumors that the Commerce Department is seeking equity stakes.

Rigetti Computing, Inc.'s prospects, funding status, risks, and valuation insights for quantum computing investors. Learn more on RGTI stock here.

Quantum computing stocks have been rising at feverish levels this year. One of the hottest has been Rigetti Computing ( RGTI +9.80%), which, despite some modest financial results thus far, has soared 200% since the beginning of the year and close to 4,800% in 12 months.

Some publicly traded quantum computing firms have seen their shares grow by more than 3,000% over the last year. Here's what to know.

Shares of Rigetti Computing are trading lower Thursday amid a broader pullback in the quantum computing sector following a significant rally.

D-Wave, IonQ, and Rigetti are deeply unprofitable. Over the past year, the first two companies burned twice as much cash as they earned in revenue, and Rigetti burned six times as much cash. The other problem is their valuations. All three stocks trade at price-to-sales (PS) ratios that are nonsensical when compared to forecasted sales growth.