Shares of Bionano Genomics (BNGO) experienced a dramatic pre-market plunge on Tuesday, nosediving 39.71% as investors reacted to news of a public offering. The significant drop highlights the market's immediate and strong response to the company's latest financial move.

The sharp decline comes on the heels of Bionano Genomics' announcement regarding the pricing of a $10 million public offering. This development has evidently spooked investors, leading to a massive sell-off in the pre-market trading session. Public offerings often lead to stock dilution, which can negatively impact existing shareholders' value.

While the company likely aims to raise capital for operational needs or strategic initiatives, the market's reaction suggests that investors are concerned about the potential dilution of their shares and the company's need for additional funding. As the trading day progresses, it remains to be seen how this news will continue to affect Bionano Genomics' stock price and whether the company will provide additional context or reassurances to mitigate investor concerns.