Global stock markets are experiencing significant fluctuations as tensions between the U.S. and Iran escalate, following renewed military actions. U.S. stock futures initially showed signs of recovery, but quickly shifted as President Trump declared the ceasefire with Iran to be over, prompting widespread declines in major indices, including the Dow, which fell over 500 points. Oil prices surged in response to the military exchanges, influencing global markets. Investors remain cautious as geopolitical risks loom large, with mixed performances observed across Asian and European shares. The situation continues to develop as traders assess the potential impact on the economy and markets.