Former “Mr Yen” Watanabe warns of risk of renewed yen selling backlash into Japan election

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Japan’s election-driven fiscal debate is keeping bond and FX markets on edge, with any hint of looser policy risking renewed volatility.

Summary:

  • Japanese markets remain highly sensitive to fiscal policy signals ahead of the February 8 snap election, according to a former senior currency official.

  • Any expansion of tax relief risks renewed selling pressure in government bonds and the yen.

  • Investor nerves were exposed last month after proposals to cut food-related consumption taxes triggered sharp moves in JGBs and FX.

  • While markets have stabilised, underlying concerns over debt, trade deficits and policy clarity persist.

  • Election-driven fiscal promises could again test market tolerance and intervention thresholds.

Japanese financial markets remain on a knife-edge as investors assess the risk that looser fiscal policy could resurface during the current election campaign, according to analysis from a former senior currency official in comments to Reuters.

Concerns centre on the possibility that the ruling Liberal Democratic Party may lean further toward tax relief measures if political support appears to weaken ahead of the February 8 snap election. Even modest hints of expanded fiscal easing, particularly around consumption taxes, could reignite market volatility similar to the sharp selloff seen last month.

That episode underscored investor sensitivity to Japan’s fiscal outlook. When Prime Minister Sanae Takaichi pledged a temporary cut to food-related consumption taxes, markets reacted swiftly. Super-long Japanese government bonds came under heavy pressure, while the yen weakened toward levels that have historically prompted official intervention. The moves revived global concerns about fiscal discipline in a country where public debt already exceeds twice the size of the economy.

Since then, conditions have steadied somewhat. The yen has retraced part of its losses, aided by market speculation that Japanese and US authorities conducted so-called rate checks, a step widely interpreted as a warning shot ahead of potential FX intervention. Bond markets have also found temporary footing, though volatility remains elevated by historical standards.

According to former vice finance minister Hiroshi Watanabe, investors remain acutely alert to political signals. Any suggestion that tax relief could broaden beyond current commitments risks provoking a renewed market backlash. He noted that recent policy messaging suggests senior officials have become more aware of the constraints imposed by global capital markets, particularly the caution expressed by large US and European investors.

Despite the recent stabilisation, structural factors continue to limit the scope for sustained yen strength. Japan’s large public debt burden, a persistent trade deficit, and uncertainty surrounding the future path of Bank of Japan policy all weigh on investor confidence. While short-term yen rallies remain possible, especially if intervention risks resurface, longer-lasting appreciation appears difficult without clearer progress on fiscal sustainability and monetary normalisation.

With election dynamics still in play, markets are likely to remain hypersensitive to policy headlines. The episode highlights how Japan’s reflation ambitions are increasingly constrained by the need to reassure investors that fiscal expansion will not come at the expense of long-term stability.

This article was written by Eamonn Sheridan at investinglive.com.