Japan’s Election Results Could Send Shockwaves Through US Bond Market

Published 21/07/2025, 07:55

Japan’s ruling coalition suffered significant losses in its upper house, and that may not bode well for USD/JPY or JGBs. Both the yen and JGBs were under pressure leading up to this weekend’s vote.

Rates on 10-year, 30-year, and 40-year JGBs surged notably this past week, and the election results will provide the market with additional motivation to push yields even higher. The 10-year JGB briefly touched 1.6% last week, surpassing its previous peak from March.

JPY 10-Yr Yield-Daily Chart

You can add rising rates in Japan to the growing list of reasons why long-end rates in the US are likely to move higher. If Japanese yields rise further following the election results, either US Treasury rates will increase in tandem, or the spread between Treasuries and JGBs will narrow, bringing the yen carry trade back into the spotlight. Currently, the spread between the US 10-year Treasury and the JGB is around 2.9%, just above the critical support level near 2.85%, which has played a key role over the past few years.US10Y-JP10Y-Daily Chart

The USD/JPY has recently diverged somewhat from the 10-year yield spread, likely reflecting market anxiety about Japan’s deteriorating fiscal situation. This concern has intensified amid rising rates, elevated inflation, new tariffs, and now election results that could trigger increased government spending.US10Y-JP10Y-Daily Chart

This dynamic will add further pressure to the long end of the US yield curve, especially following last week’s breakout of 5-year CPI swaps from a two-year trading range. If this trend continues, it will become increasingly difficult for US rates not to rise, as the market would clearly be signaling expectations for higher inflation ahead.

5-Yr-CPI-SWAP Chart

This scenario is likely to steepen the yield curve further, as indicated by the 10/2 spread, which has been consolidating for months and now appears to have formed a bull flag pattern. Considering the current market backdrop, the most probable outcome is a yield curve steepening driven by rising 10-year rates pulling away from the 2-year.US10Y-US02Y-Daily Chart

So, while Japan’s election results may seem distant and unrelated to US markets, we must remember that global financial systems are deeply interconnected—what happens in Japan’s bond markets can have a significant impact on US markets.

Original Post

Latest comments

Risk Disclosure: Trading in financial instruments and/or cryptocurrencies involves high risks including the risk of losing some, or all, of your investment amount, and may not be suitable for all investors. Prices of cryptocurrencies are extremely volatile and may be affected by external factors such as financial, regulatory or political events. Trading on margin increases the financial risks.
Before deciding to trade in financial instrument or cryptocurrencies you should be fully informed of the risks and costs associated with trading the financial markets, carefully consider your investment objectives, level of experience, and risk appetite, and seek professional advice where needed.
Fusion Media would like to remind you that the data contained in this website is not necessarily real-time nor accurate. The data and prices on the website are not necessarily provided by any market or exchange, but may be provided by market makers, and so prices may not be accurate and may differ from the actual price at any given market, meaning prices are indicative and not appropriate for trading purposes. Fusion Media and any provider of the data contained in this website will not accept liability for any loss or damage as a result of your trading, or your reliance on the information contained within this website.
It is prohibited to use, store, reproduce, display, modify, transmit or distribute the data contained in this website without the explicit prior written permission of Fusion Media and/or the data provider. All intellectual property rights are reserved by the providers and/or the exchange providing the data contained in this website.
Fusion Media may be compensated by the advertisers that appear on the website, based on your interaction with the advertisements or advertisers
© 2007-2025 - Fusion Media Limited. All Rights Reserved.