The Japanese yen has shown significant volatility against major currencies, particularly the US dollar and the euro. Initially, the yen extended gains to 1% versus the dollar, but later the dollar/yen pair saw fluctuations, with the dollar rising 0.25% to 158.00 yen and then extending gains to 158.78 yen. However, the yen rebounded, causing the dollar/yen pair to decline by 0.76% to 157.065 yen and eventually falling nearly 1% to 156.76 yen. The euro also experienced sharp movements against the yen, dropping 0.6% to 171.645 yen and falling nearly 0.9% to a three-week low of 171.03 yen. Additionally, sterling and the Australian dollar both declined against the yen, with sterling down 0.65% and the Australian dollar nearly 1%. Earlier, the dollar/yen pair had minor fluctuations, showing a 0.1% decline, a 0.45% drop, a 0.52% rise, a 0.39% increase, and a 0.26% decrease.