According to Charu Chanana, Chief Investment Strategist at Saxo in Singapore, the Bank of Japan has taken action that was anticipated by the market. However, the market's reaction indicates that the central bank's stance is not sufficiently hawkish to trigger a significant revaluation of the Japanese yen. The key point is that while the Bank of Japan is clearly more concerned about inflation, particularly with core inflation consistently exceeding the 2% target, its policy adjustments remain very gradual, and it continues to signal that financial conditions will stay accommodative.

This situation leaves the USD/JPY pair quite vulnerable around the 160 level. Although this interest rate hike provides some support for the yen, it is not enough to narrow the substantial interest rate differential between the United States and Japan, especially if the Federal Reserve maintains a cautious stance. The 7-to-1 vote outcome also slightly weakens the policy signal, as it suggests that within the Bank of Japan, there are still some concerns about the impact of tightening policies on economic growth and employment.

This development offers mild support for the Japanese stock market, as the Bank of Japan's policy tightening does not currently threaten liquidity or corporate profits. For the foreign exchange market, the larger question is whether the yen can sustain its gains. If USD/JPY remains above 160 following the rate hike, the risk of intervention will persist—particularly considering the upcoming Federal Reserve decision, as a backdrop of a weaker U.S. dollar might provide Japanese authorities with a more favorable window for action.