Japanese stocks traded mixed on Thursday as a sudden strengthening of the yen, reportedly tied to speculation that authorities had conducted a rate check, weighed on export-heavy companies. The Nikkei 225 fell 0.2% to around 64,200, while the broader Topix rose 0.7% to 4,110. Tech shares including Advantest, Fujikura and Taiyo Yuden declined, while Mitsubishi UFJ, Sumitomo Mitsui and Mizuho Financial advanced. Equities received some support from lower oil prices after President Donald Trump said the latest attacks on Iran would be short-lived. Global bond yields also retreated from recent highs as investors assessed the inflation and interest-rate outlook.