The Nasdaq composite experienced a sell-off on Monday following news of Trump's blockade in the Strait of Hormuz, causing a downturn in key companies like Micron, Sandisk, SK Hynix, and SpaceX. This led to a spike in oil prices. Dow Jones Futures were impacted by these developments. The market reacted with concern, with notable drops in various sectors. The post from Investor's Business Daily highlighted the significant changes in the market as a result of these events.