Higher interest rates in Japan could force investors to unwind yen-funded investments, putting pressure on Bitcoin and US stocks. Another increase in December would give Japan three rate hikes in one calendar year for the first time since 1989. Producer prices increased 7.1% in October, exceeding economists' forecast of 6.5% and increasing pressure on the Bank of Japan to tighten policy. However, a December increase remains uncertain and would not necessarily trigger a sell-off. A faster-than-expected sequence of increases in 2027 poses a greater risk, particularly if the yen rebounds suddenly.