Foreign investors cut Japanese stock purchases to ¥385.5B, down from ¥973.9B, according to March figures

    by VT Markets
    /
    Mar 12, 2026
    Foreign buying of Japanese shares fell to ¥385.5 billion in the week ending 6 March. This was down from ¥973.9 billion in the previous period. The figures show a drop of ¥588.4 billion from one week to the next. In relative terms, that is about a 60% decline.

    Foreign Flow Reversal Risk

    We are treating this sharp drop in foreign investment as a clear warning sign for Japanese equities. The fall to ¥385.5B is the lowest weekly inflow this year, indicating a potential reversal of the strong foreign buying that pushed the market to record highs. This suggests that in the coming weeks, we should prepare for downward pressure on the Nikkei 225 index. This capital flight will likely impact the currency, and we anticipate a weaker yen. As foreign investors sell their Japanese stock holdings, they will convert the yen proceeds back to their home currencies, increasing supply of the yen. We are therefore considering call options on the USD/JPY pair, anticipating a move above the recent 151 resistance level. The sudden shift in sentiment makes a spike in market volatility highly probable. The Nikkei Volatility Index, which has been hovering at a relatively calm 17, could easily push above 20 as uncertainty grows. This environment is ideal for traders looking to buy straddles or strangles on key index components to profit from larger price swings, regardless of direction. We are reminded of the brief pullback in October 2025, when a much smaller net outflow triggered a quick 4% correction in the Topix index. That event showed how sensitive the market has become to foreign flows after the massive inflows seen throughout last year. The current drop is far more substantial and warrants a more defensive posture. Given this data, our immediate focus is on hedging long portfolios and initiating bearish positions. The market’s vulnerability is heightened after its historic rally, which was largely fueled by the very foreign capital that is now retreating. We see this as a signal to reduce long exposure and prepare for increased market choppiness.

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