We recently published 10 Stocks Lost This Big While Wall Street Celebrates. Quantum Computing Inc. (NASDAQ:QUBT) is one of the worst performers on Monday. Quantum Computing snapped a four-day winning streak on Monday, losing 13.15 percent to end at $20.21 apiece after announcing a$500 million share sale that could result in the potential dilution of existing shares. In a statement, Quantum Computing Inc. (NASDAQ:QUBT) said it entered into a share purchase agreement with institutional investors for the p ...