The probability of a "25 basis point rate hike by the Bank of Japan in December" on Polymarket is currently reported at 98%.

According to Jinse Finance, data from the relevant Polymarket page shows that the probability of the "Bank of Japan raising interest rates by 25 basis points in December" on Polymarket is currently reported at 98%, while the probability of no change in interest rates is 2%. It is reported that the Bank of Japan plans to announce its interest rate decision on December 19.