On Thursday (July 30) during Asian trading hours, the US dollar rose slightly against the Japanese yen to around 163.50. The Federal Reserve on Wednesday voted 9-3 to keep interest rates unchanged at 3.50%-3.75%, but three hawkish members voted against a 25 basis point hike. This, coupled with Warsh's clear commitment at the press conference that he "will never waver in achieving the 2% inflation target," supported the dollar. The market is awaiting the Bank of Japan's interest rate decision on Friday—widely expected to keep rates unchanged at 1.00%, but the wording of the statement will be a key variable for the yen's short-term movement.

Federal Reserve hawks hold rates steady

The Federal Reserve's July meeting saw a 9-3 vote to keep interest rates unchanged. Three hawkish members—Dallas Fed President Logan, Cleveland Fed President Hammark, and Minneapolis Fed President Kashkari—voted against a 25-basis-point rate hike, marking the most public dissent within the FOMC in recent years. Fed Chairman Warsh stated at the press conference that while the central bank would not provide forward guidance on the policy path, it would take necessary measures to achieve its 2% inflation target. The Fed Sentiment Index, constructed by a well-known institution, jumped significantly to 147.58, firmly in hawkish territory, providing medium-term support for the US dollar.

Escalating tensions in the Middle East provide safe-haven support for the US dollar.

Escalating geopolitical risks in the Middle East continued to support the US dollar. According to media reports, the US military launched strikes against Iran on Wednesday night in retaliation for Iranian missile attacks on US forces stationed in the region. Iranian media reported that US forces attacked the southwestern Iranian city of Abadan and the island of Qeshm. This renewed escalation of geopolitical conflict provided additional safe-haven buying for the US dollar, putting downward pressure on the Japanese yen.

Ahead of the Bank of Japan's Decision

Markets are awaiting the Bank of Japan's (BOJ) interest rate decision on Friday. The market widely expects the BOJ to keep interest rates unchanged at 1.00%—after raising them by 25 basis points last month—but to leave room for future rate hikes through hawkish communication. Analysts at prominent institutions suggest the BOJ may maintain its assessment that "price outlook risks are skewed to the upside." They add that "if the BOJ becomes more vigilant about inflation overshooting, or if the continued depreciation of the yen prompts the government to conclude that a rate hike is inevitable, the hike could come as early as September or October." Scotiabank strategists warn that the risk balance for the latter half of this week still leans towards further yen strength, with the policy context being a key driver. They point out that if BOJ policymakers adopt a "hawkish hold-up" approach—keeping rates unchanged but signaling a stronger stance on future rate hikes—it could strengthen market expectations of a 25 basis point rate hike before the end of the year, thereby supporting the yen.

Short-term trading activity intensifies against the US dollar and Japanese yen.

The current USD/JPY exchange rate is highly dependent on three key variables. If the Bank of Japan's decision releases an unexpectedly hawkish signal, hinting at further tightening, it will directly boost the yen, pushing USD/JPY below the 163.00 level. Meanwhile, expectations of further Fed rate hikes continue to dominate the dollar's direction. If the market continues to price in a September rate hike, the dollar will receive significant support, pushing USD/JPY back above 164. Furthermore, the Middle East geopolitical situation remains a significant disruptive factor. If the conflict escalates further, risk aversion will rise significantly, attracting buying interest in the dollar as a traditional safe-haven currency, further pressuring the yen. In summary, short-term exchange rate volatility may increase significantly, with the direction depending on the outcome of the interplay of these three variables. Investors need to closely monitor the Fed's policy statements and geopolitical developments.

The yen awaits the Bank of Japan's decision; hawkish stances remaining unchanged could be a short-term catalyst.

The USD/JPY pair rebounded to around 163.50, supported by both the Federal Reserve's hawkish stance and escalating tensions in the Middle East. The Fed's 9-3 vote and Warsh's hawkish comments provided medium-term support for the dollar, while the Bank of Japan's decision on Friday will be a key variable for the yen's short-term movement. If the Bank of Japan adopts a hawkish stance—keeping rates unchanged but signaling a stronger outlook for future rate hikes—the yen may find support, and USD/JPY could test the 163.00 level; if the statement is dovish, USD/JPY could return above 164. Until the decision becomes clearer, USD/JPY is more likely to consolidate within the 163.00-164.00 range, awaiting a catalyst. (USD/JPY daily chart, source: FX678) At 10:56 Beijing time on July 30, the USD/JPY exchange rate was 163.45/46.