美国商品期货交易委员会（CFTC）：5月13日当周，对冲基金增持日元多头头寸至2019年9月份以来新高。

Core Insights - Hedge funds have increased their long positions in the Japanese yen to the highest level since September 2019, indicating a bullish sentiment towards the currency [1] Group 1 - The Commodity Futures Trading Commission (CFTC) reported that hedge funds have raised their long positions in the yen [1] - This increase in positions reflects a significant shift in market sentiment towards the Japanese yen [1] - The current levels of long positions suggest potential confidence in the yen's performance against other currencies [1]