Japanese retail investors' bearish sentiment on the U.S. dollar intensified last month, with net short positions surging to the highest level in nearly 20 years. According to Jin10, data from the Japan Financial Futures Association showed that net short dollar positions held by Japanese retail investors increased more than fourfold from the previous month to 2.79 trillion yen (approximately $17.2 billion), the highest since records began in late 2008. Japanese retail investors dominate spot foreign exchange trading in Tokyo, and their positioning may influence the effectiveness of government intervention to support the yen. With these investors already heavily betting on a weaker dollar, if the government sells dollars and buys yen, the impact may be less than in the past. Hideki Shibata, senior rates and foreign exchange strategist at Tokai Tokyo Intelligence Laboratory, said that when the government intervenes, these retail investors will close positions by selling yen, pushing USD/JPY in the opposite direction. Additionally, local importers are waiting to buy USD/JPY at lower levels, which may weaken the Ministry of Finance's willingness to intervene.