Bitcoin weakens before the Bank of Japan's interest rate hike: Is history repeating with a "sell the anticipation" trend?

As the Bank of Japan (BoJ) prepares to announce its interest rate decision on December 19, Bitcoin (BTC) prices are already weakening in advance, and market sentiment is noticeably turning cautious. The current mainstream expectation is a 25 basis point rate hike, and risk assets have begun to price in this policy expectation ahead of time, with Bitcoin leading the decline.

Historically, BoJ rate hikes have been highly correlated with phased declines in Bitcoin. After the first rate hike in March 2024, BTC retraced about 23%; following the second hike in July 2024, the decline deepened to 26%; and the policy adjustment in January 2025 was accompanied by an almost 31% deep retracement. The core logic behind this is the tightening of yen liquidity, unwinding of arbitrage trades, and a synchronized decline in global risk appetite.

Unlike previous instances, this time the market has not waited for the policy to be officially implemented to react. On-chain data and exchange flows show that BTC spot net inflows have already increased significantly before the meeting, indicating some investors are choosing to sell early and reduce risk exposure. Meanwhile, funding rates have declined and become volatile, suggesting leverage trading is cooling off in advance rather than being concentrated after the announcement.

This change implies that the typical “panic selling after news release” may have been partially preempted. In previous rate hike cycles, sharp changes in exchange inflows and funding rates usually occurred after the decision was announced; this round’s adjustment resembles a “sell the rumor” phase that is already being completed early.

Looking ahead to the post-meeting trend, the focus is no longer solely on the rate hike itself but on the actual response of the yen. Since this policy shift has been discussed in the market for months, most yen arbitrage trades have already been closed, and liquidity tightening is not unexpected. If the yen strengthens significantly after the hike, risk assets could remain under pressure; however, if the yen’s response is limited, Bitcoin may experience a short-term technical rebound of “selling the rumor, buying the fact.”

Overall, the impact of the BoJ interest rate decision on Bitcoin is shifting from “policy shock” to “market expectation management.” At this stage, what determines BTC’s short-term direction is not the size of the rate hike but the real feedback from funds and exchange rates after the policy announcement.