Quantum Computing Inc. (QUBT) experienced a significant downturn on Friday, with its stock plummeting 6.46% in a 24-hour period. This sharp decline comes amidst growing concerns about the sustainability of the recent surge in quantum computing stocks.

While quantum computing stocks have been on a tear recently, with QUBT up an impressive 3,040% over the past year, experts are now raising red flags about the sector's valuation and insider trading patterns. A recent analysis reveals that insiders at QUBT and other quantum computing companies have been engaging in substantial net selling, with QUBT insiders alone offloading over $33 million worth of shares in the past five years.

Adding to investor concerns is the astronomically high price-to-sales ratio of QUBT, which stands at a staggering 10,250. This valuation far exceeds what has historically been sustainable for even the most innovative tech companies. The lack of insider buying, coupled with persistent selling and sky-high valuations, suggests that those closest to the company may be skeptical about its near-term prospects, potentially triggering today's sell-off.