1 hour ago
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Japan’s 40-year government bond yield rose to 3.86%, up 3.5 basis points, while the Polymarket probability of a Bank of Japan rate cut after its April 2026 meeting sits at 0.1% YES.
The rate cut market has barely moved, with odds at 0.1% YES, unchanged from both a day and a week ago. Traders see almost no chance of a cut while yields are rising and fiscal pressures are building. Daily face value volume is $2,497, but actual USDC traded is just $4. It would take only $78 to move the odds five points, meaning even a small trade could shift the price.
The bond yield increase points to fiscal stress tied to Prime Minister Takaichi’s policies. Rising long-term yields are consistent with the market’s read that the Bank of Japan will hold rates steady or raise them to address inflationary pressures. The probability of a rate hike is also low, but the unchanged rate cut market is the one worth watching.
Sustained elevation in 40-year bond yields signals long-term concern about Japan’s debt sustainability. For traders, buying YES at 0.1¢ for a rate cut is a long shot that requires belief in a sudden policy reversal, something unlikely without new economic shocks.
Watch for communications from BOJ Governor Kazuo Ueda. Any shift in tone or policy hints could change the rate cut calculus. Japanese economic indicators like GDP growth and PMI data will also signal whether conditions are moving toward or away from a policy change.
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