Due to Mountain Day, Japanese markets are closed, causing reduced trading in US bonds and yen.

    by VT Markets
    /
    Aug 10, 2025

    Japanese markets are shut today due to the Mountain Day holiday, causing stock markets to close and resulting in reduced yen trading activity. This closure is simultaneous with the United States following the Securities Industry and Financial Markets Association’s guidance.

    US bond trading experiences a halt in trading of U.S. dollar-denominated government securities as part of SIFMA’s holiday recommendations. This includes mortgage- and asset-backed securities, over-the-counter investment-grade and high-yield corporate bonds, as well as municipal bonds.

    Impact On Secondary Market Trading

    Secondary money market trading in bankers’ acceptances and commercial paper is also paused, along with trading in Yankee and Euro certificates of deposit. These disruptions may have broader effects due to limited trading in these instruments.

    With Japanese and some US markets thinned out for the holiday, we should expect low liquidity in the coming hours. This can create a tricky environment where even small orders can cause exaggerated price swings, particularly in yen-related currency pairs. Derivative traders should reduce position sizes or stay on the sidelines to avoid getting caught in any sudden, low-volume spikes.

    We are seeing the USD/JPY pair hover near a sensitive 158.50 level, a point of concern for Japanese officials. We remember the significant currency interventions that occurred back in the spring of 2024 when the yen showed similar weakness. Traders should consider buying short-term options to hedge against a sharp move when Tokyo traders return and full liquidity is restored.

    Market Anxiety And Strategies

    This quiet period in the US bond market comes just ahead of important economic data releases. With the latest US inflation figures showing a stubborn 3.1% year-over-year rate, the market is on edge for the next signal from the Federal Reserve. Any surprises in the upcoming data could lead to a significant repricing in interest rate futures and swaps once full trading resumes.

    Overall market anxiety remains elevated, with the CBOE Volatility Index (VIX) currently sitting around 18. This is noticeably higher than the calmer periods we experienced last year, indicating that investors are already nervous. In this low-volume environment, hedging strategies using index options may be prudent to protect portfolios against unexpected shocks.

    The main focus for the next day is to prepare for the return of full market participation. We should watch for price gaps when the Japanese stock market reopens and bond desks become fully staffed. This holiday lull provides an opportunity to plan entry and exit points for the higher volume sessions expected later this week.

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