Today’s Market Outlook Yen Weakness Continues Despite BOJ Rate Hike Focus on Whether USD/JPY Can Establish Itself Above 158

Today’s Market Outlook

Yen Weakness Continues Despite BOJ Rate Hike
Focus on Whether USD/JPY Can Establish Itself Above 158

Market Overview

At today’s Bank of Japan monetary policy meeting, the policy rate was raised from around 1.00% to around 1.25%, in line with market expectations.

However, the decision was not unanimous, passing by a 7–2 vote with two members favouring no change. This led markets to conclude that the BOJ’s tightening stance may be less forceful than expected.

In his press conference, BOJ Governor Ueda stated that “the phase of policy has changed” and said that underlying inflation is moving closer to 2%. The yen briefly recovered on those remarks, with USD/JPY falling from the 157 range to around 156.50.

However, the yen buying did not last because Governor Ueda did not provide a specific indication of the future pace or size of rate hikes. Yen selling resumed in the London session, pushing USD/JPY as high as 158.05 — its highest dollar-yen level since 3 September.

Why the Yen Weakened Despite the Rate Hike

The yen’s decline reflects the fact that the expected policy path fell short of market expectations, rather than the rate increase itself.

The main yen-negative factors are as follows:

• The 0.25% rate hike had already been priced in.
• The decision passed by a 7–2 vote, with two members preferring to keep rates unchanged.
• The timing of the next rate hike was not indicated.
• The BOJ did not actively signal consecutive hikes or an increase greater than 0.25%.
• No specific terminal-rate level was provided.
• Dollar strength and higher US yields have continued following the FOMC meeting.

Markets had been looking not only for today’s rate hike, but also for a clear message that the BOJ would continue raising rates at a relatively rapid pace.

Governor Ueda did not rule out further rate hikes, but said that policy decisions would be made at each meeting. As a result, yen selling driven by profit-taking and a “buy the rumour, sell the fact” reaction is strengthening, particularly among short-term traders.

Assessment of Governor Ueda’s Press Conference

Governor Ueda’s remarks included both hawkish and cautious elements.

The hawkish points included:

• The phase of monetary policy has changed.
• Underlying inflation is moving closer to 2%.
• Upside inflation risks are materialising.
• Higher oil prices are likely to spread across a broad range of goods and services.
• Consecutive rate hikes or an increase larger than 0.25% have not been ruled out.

However, the factors that prevented sustained yen buying included:

• No indication of when the next rate hike may come.
• No specific pace of future rate hikes was envisaged.
• No terminal-rate level was identified.
• Policy changes will be decided meeting by meeting after assessing the data.

Overall, the BOJ left the door open to further rate hikes but did not provide a message strong enough for markets to price in a rapid series of near-term increases. This ambiguity is contributing to yen selling.

USD/JPY

USD/JPY rose from the low 156 range ahead of the BOJ meeting and reached a high of 158.05 in the London morning.

Its time above 158 has been limited so far, with the pair currently trading around 157.95–158.00. The first key question is whether it can establish itself above 158.

If USD/JPY breaks above 158.05 and holds there, the next upside targets will be 158.50 and 159.00. If US yields continue to rise and dollar strength persists, a test of the 159 range is possible.

Conversely, if the pair is capped in the 158 range, profit-taking may emerge following the sharp post-BOJ yen selling. On the downside, 157.50 and then 157.00 are the key near-term support levels.

A break below 157 could bring Governor Ueda’s hawkish comments back into focus and trigger yen buying towards 156.50.

Intervention Risk

USD/JPY has risen by around two yen in a short period and has returned to the 158 range, raising the risk of verbal intervention from the Japanese government and Ministry of Finance.

Although the pair remains some distance from 160, authorities are likely to focus not only on the level itself but also on the speed of the move and the extent of speculative activity.

If USD/JPY rises rapidly towards 159 and 160, stronger verbal intervention may emerge.

Since the yen is weakening despite a BOJ rate hike, it will also be important to watch whether Japanese authorities signal that they will not tolerate excessive yen depreciation.

The Gap Between US and Japanese Monetary Policy

The FOMC adopted a hawkish tone this week, supporting higher US yields and dollar buying.

The BOJ, by contrast, delivered a rate hike but did not provide a clear indication of the pace of future tightening.

As a result, markets are increasingly focused on the following view:

• The United States may continue to raise rates.
• The timing of Japan’s next rate hike remains unclear.
• The US-Japan yield gap is likely to remain wide.

A single BOJ rate hike is not enough to narrow the US-Japan yield differential substantially. This makes it easier for yen carry trades to build again.

Oil Market

Oil prices have eased on expectations of a de-escalation in Middle East tensions.

Lower oil prices reduce inflation concerns and safe-haven demand for the dollar. However, dollar buying driven by higher US yields remains stronger for now and has not been reversed.

If oil prices continue to fall, expectations for further US rate hikes may gradually ease, potentially slowing the dollar’s advance.

For Japan, lower oil prices should improve terms of trade and normally support the yen. If the yen continues to weaken despite falling oil prices, it would underline the strength of yen selling driven by the US-Japan yield differential.

Cross-Yen Pairs

Yen selling has extended beyond USD/JPY to the cross-yen pairs.

EUR/JPY reached a high of 181.29, while GBP/JPY climbed to 211.04.

With moves in the dollar pairs relatively limited while cross-yen pairs rise sharply, today’s market is better characterised as broad yen weakness following the BOJ meeting rather than broad-based dollar strength.

If yen selling continues, the focus will be on whether EUR/JPY can establish itself in the 181 range and GBP/JPY in the 211 range.

Conversely, verbal intervention from Japanese authorities or position adjustment could trigger sharper pullbacks in the cross-yen pairs than in USD/JPY.

EUR/USD and GBP/USD

EUR/USD is trading in a narrow 1.1474–1.1492 range, while GBP/USD has remained between 1.3353 and 1.3376.

Both pairs are only modestly softer in dollar terms compared with the previous New York close, indicating that today’s market is being led by the yen.

The key levels are whether EUR/USD can recover 1.1500 and whether GBP/USD can move back towards 1.3400.

If US yields rise again, dollar buying is likely to strengthen, limiting upside in both EUR/USD and GBP/USD.

US Economic Data

In the US session, August industrial production and the August Leading Economic Index will be released.

Stronger-than-expected industrial production could reinforce the view of a resilient US economy and support further dollar buying through expectations of additional rate hikes.

Conversely, weak data could lead to lower US yields and a correction in the dollar’s recent strength.

However, because USD/JPY is being driven by the yen today, post-BOJ yen selling is likely to remain the dominant theme unless US data diverges sharply from expectations.

Central Bank Speakers

Remarks are scheduled from ECB President Lagarde, Fed Vice Chair Bowman and Kansas City Fed President Schmid.

If Fed officials reiterate the FOMC’s hawkish stance, higher US yields and dollar buying may continue.

Conversely, if they highlight falling oil prices or downside economic risks and adopt a more cautious stance on further rate hikes, dollar-long positions could come under pressure.

Key Focuses for Overseas Markets

① Whether USD/JPY can establish itself above 158
② Whether it can break above 158.05 and test 158.50
③ Whether Japanese government or Ministry of Finance officials issue yen-weakness warnings
④ Whether the US 10-year Treasury yield continues to rise
⑤ Whether falling oil prices reduce US inflation and rate-hike expectations
⑥ Whether US industrial production supports dollar buying
⑦ Whether Fed officials maintain a firm stance on further rate hikes
⑧ Whether EUR/JPY holds above 181 and GBP/JPY above 211
⑨ Whether profit-taking emerges in yen-short positions ahead of the weekend

Potential Scenarios

Continued Yen Weakness

If USD/JPY breaks above 158.05 and US yields remain elevated, yen selling following the BOJ meeting is likely to continue as the rate hike is treated as a fully priced-in event. The next focus would be the 158.50–159.00 area.

Yen-Strength Correction

If USD/JPY is capped above 158 and verbal intervention from Japanese authorities or pre-weekend profit-taking emerges, the pair could fall back towards 157.50 and then 157.00. A break below 157 would bring 156.50 into focus.

Accelerating Dollar Strength and Yen Weakness

If US economic data is strong and Fed officials remain hawkish, the dollar and yen weakness could accelerate simultaneously. In this scenario, USD/JPY may test the 159 range, while cross-yen pairs could also extend to new highs.

Dollar Correction and Yen Buying

If US data is weak, US yields decline and oil prices continue to fall, dollar correction and yen buying may reinforce each other. USD/JPY could surrender its post-BOJ gains and return to the 156 range.

Summary

The BOJ raised its policy rate to 1.25% as expected, but the 7–2 vote and Governor Ueda’s lack of guidance on the specific pace of future rate hikes have prompted yen selling.

Governor Ueda said that “the phase of policy has changed” and warned of upside inflation risks, but stopped short of providing the clear signal of consecutive rate hikes that markets had expected.

USD/JPY rose as high as 158.05, reaching its highest level since 3 September. The key question now is whether it can hold above 158.

If post-BOJ yen selling, post-FOMC dollar strength and rising US yields reinforce each other, a move towards 159 is possible. However, the 158 range may also attract verbal intervention from Japanese authorities and profit-taking ahead of the weekend.

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