Due to the risk-off decisions made by many individuals based on the direct confrontation between Israel and Iran on 4/19, the Nikkei stock prices plummeted. At that moment, not only were Japanese government bonds and U.S. government bonds purchased, leading to a strong yen, but also the dollar index simultaneously rose, resulting in a rare phenomenon known as 'strong dollar and strong yen.' However, when things calmed down, U.S. government bonds were sold again, U.S. government bond yields rose again, and the trend shifted back to a strong dollar and weak yen. The following morning, it was confirmed that U.S. stocks also showed a corresponding downward trend as suggested by this model. Fundamentals insights such as current strong performance and weak guidance were also included, along with a wide range of possibilities.