StoneX logo

Japan’s Service Inflation Keeps a BOJ Hike in Play

By: Matt Simpson, Market Analyst

Japan’s service inflation remains persistent enough to support expectations for another BOJ hike in September, but softer near-term momentum offers little evidence that policymakers need to tighten again quickly.

 

Japan’s Service Inflation Supports Further BOJ Tightening

Japan SPPI dashboard showing persistent services inflation, labour-cost pressures and limited near-term price acceleration ahead of BOJ meeting.

Source: Bank of Japan

 

Markets are increasingly expecting the Bank of Japan to raise interest rates again when it meets on 17-18 September, leaving the bigger question less about whether it hikes and more about what comes next.

A Reuters poll conducted earlier this week found 57% of economists expect the BOJ to raise its policy rate from 1% to 1.25% in September, with some already looking for another increase to 1.5% before year-end. Markets have leaned even more heavily towards a September move following persistent inflation, yen weakness and rising Japanese yields.

Market pricing puts the probability of a hike closer to 80%, shifting the focus towards the BOJ's guidance. A September hike without any indication of further tightening could leave the yen vulnerable to renewed weakness, although the MOF remains on standby should depreciation become too rapid or prolonged.

While the BOJ expects headline inflation to remain above 2%, the bigger policy question is whether domestic price pressures are becoming more persistent. Japan’s latest SPPI suggests they just might, although there is little evidence of renewed price acceleration.

 

 

 

 

SPPI Momentum Remains Elevated, But Has Cooled

Japan SPPI chart shows service inflation near 3% while three-month annualised momentum cools ahead of the September BOJ meeting.

image-20260826162048-3

Source: Source: Bank of Japan

 

  • Japan’s headline SPPI rose 3.6% y/y in July, up from 3.4% in June, while ex-international transportation and high labour-cost services remained close to 3%.
  • Transportation and postal services jumped 1.44% m/m and 6.41% y/y, helping lift the headline, though transport is more exposed to fuel, freight and external costs.
  • More relevant for the BOJ is that domestic service inflation remains firm even after stripping some of that out.
  • The broader trend remains firm, but recent momentum has softened.
  • The three-month annualised rate for SPPI ex international transportation slipped to -0.35%, while high labour-cost services ran at just +0.70%.


 

Ultimately, the data point to persistent service inflation without renewed acceleration. That remains consistent with another BOJ hike, but offers little support for a rapid follow-up move.

Tokyo CPI is next and should provide a more timely read on whether consumer inflation is telling a similar story. Tokyo core CPI has historically tracked the national measure closely, so another firm reading would reinforce the case that underlying inflation remains persistent heading into the BOJ meeting.

Tokyo core CPI closely tracks Japan core CPI, with both near 1.7% as markets assess inflation ahead of the BOJ meeting.

Source: Statistics Bureau of Japan


 

Market Pricing Still Points to Further BOJ Tightening

Japan’s 2-year JGB yield has risen to around 1.7%, nearly 70bp above the BOJ’s 1% policy rate. That suggests markets are already pricing further tightening beyond September, leaving the BOJ’s guidance on the path towards 1.5% as the more important signal.

Japan 2-year JGB yield rises above the BOJ policy rate, signalling markets expect further tightening beyond September.

Source: TradingView

 

 

  • Securities

StoneX TV content is created, produced, and distributed solely by StoneX Media Ltd (“StoneX TV”) and is provided for informational and educational purposes only.


StoneX TV does not provide investment, financial, legal, or tax advice and does not make any recommendation or endorsement of any investment strategy, transaction, or financial instrument. Nothing in this content constitutes, or should be construed as, investment advice or a recommendation to buy, sell, or hold any financial instrument, including securities, futures, derivatives, digital assets, foreign exchange products, or CFDs.


This content does not constitute an offer, invitation, or solicitation to engage in any investment activity.


The information presented is general in nature and is not tailored to the financial situation, investment objectives, or risk tolerance of any specific person. You should not rely on this content as a substitute for independent professional advice.


Investing and trading in financial instruments involves significant risk of loss and is not suitable for all investors. Past performance is not indicative of future results.


Any views or opinions expressed are those of the presenter at the time of publication and are subject to change without notice. Such views may not necessarily reflect those of StoneX Media Ltd or its affiliates. StoneX Media Ltd and its affiliates, including StoneX Group Inc., may from time to time have positions in, or engage in transactions involving, the financial instruments referenced.


This content may include general market commentary and opinion. It does not constitute independent investment research and has not been prepared in accordance with legal requirements designed to promote the independence of investment research.


StoneX Media Ltd is not authorised or regulated to provide investment services and does not act in a fiduciary capacity.


StoneX Media Ltd is incorporated in Ireland and operates in accordance with applicable Irish law. It is a wholly owned subsidiary of StoneX Group Inc. and is a separate legal entity from other subsidiaries within the StoneX Group, which may be regulated in various jurisdictions. StoneX Media Ltd does not act on behalf of, or provide services for, any regulated affiliate.


This content is not directed at, and may not be distributed to, any person in any jurisdiction where such distribution would be contrary to local laws or regulations.


Supporting documentation for any claims, comparisons, statistics, or technical data may be made available upon reasonable request, where applicable.

Satellite view of Earth at night showing illuminated cities across Asia and the Middle East

Discover more insights

Our subscribers have access to comprehensive market analysis from StoneX spanning commodities, equities, currencies and more.

StoneX: We open markets

Our market expertise, advanced platforms, global reach, culture of full transparency and commitment to our clients’ success all set us apart in the financial marketplace.

Reach

With access to 40+ derivatives exchanges, 180+ foreign exchange markets, nearly every global securities marketplace and numerous bi-lateral liquidity venues, StoneX’s digital network and deep relationships can take clients anywhere they want to go.

Transparency

As a publicly traded company meeting the highest standards of regulatory compliance in the markets we serve, our financials and record of accomplishment are matters of public record. StoneX’s commitment to “doing the right thing over the easy thing” sets us apart in the industry and helps us build respect, client trust and new partnerships.

Expertise

From our proprietary Market Intelligence platform, to “boots on the ground” expertise from award-winning traders and professionals, we connect our clients directly to actionable insights they can use to make more informed decisions and achieve their goals in the global markets.