周五，日经225指数下跌0.4%，收于38600点以下，东证指数下跌0.1%，收于2730点，日本股市连续第四个交易日下跌，因为在日本央行做出最新政策决定之前，市场普遍持谨慎态度。人们普遍预计日本央行将保持利率不变，但交易员将关注央行是否会宣布减少每月债券购买量。然而，日本央行前董事会成员Takahide Kiuchi表示，该行可能会将其灵活的债券购买计划作为一种“微调工具”，以使自己有能力应对增长和通胀的上行和下行风险。与此同时，由于最新的美国PPI数据增加了通胀缓解的进一步迹象，美国主要股指隔夜收盘创下历史新高。丰田汽车（-1%）、迅销（-1.3%）和三菱日联（-0.5%）等指数权重股跌幅显著。基准指数有望在本周结束时下跌。

The Nikkei 225 Index fell 0.4% to below 38,600 while the broader Topix Index lost 0.1% to 2,730 on Friday, with Japanese shares sliding for the fourth straight session as caution prevailed ahead of the Bank of Japan’s latest policy decision. The BOJ is widely expected to leave interest rates unchanged, but traders will focus on whether the central bank will announce a reduction in its monthly bond purchases. However, former BOJ board member Takahide Kiuchi said the bank is likely to maintain its flexible bond purchase program as a “fine-tuning tool” to allow itself the ability to combat both upside and downside risks to growth and inflation. Meanwhile, major US indexes notched new record closes overnight as the latest US PPI data added to further signs of easing inflation. Notable losses were seen from index heavyweights such as Toyota Motor (-1%), Fast Retailing (-1.3%) and Mitsubishi UFJ (-0.5%). The benchmark indexes are on track to end the week lower.