Nvidia's stock has taken a significant hit, falling 9.5% in a single session, due to a combination of factors including antitrust concerns from a U.S. Justice Department subpoena and negative market conditions. This decline has wiped out nearly $300 billion in market capitalization and has affected other semiconductor stocks, leading to a broader market sell-off. Investors are considering bearish trades on Nvidia, such as bear call spreads, to hedge against further declines. Technical analysts see some potential for a rebound, with Nvidia having close support that might trigger another rally. Meanwhile, Asian semiconductor stocks have also been hit hard, causing a crunch moment for investors. Despite the current turbulence, some analysts remain optimistic about the broader market, citing strong internal market action and potential bullish trends.