Mizuho Bank said Japan will tolerate the yen's decline in the near term, expecting it to rise as the bank tightens policy, possibly as early as the second quarter.
Additionally, Mizuho Bank said that while the Fed, ECB and BoE have not yet fully acknowledged that a rate cut is imminent, the Bank of Japan wants to avoid making a sudden change as it could could put disproportionate upward pressure on JPY. The reduction in yields and profits will work together to amplify forex moves (yen strength). Therefore, the BoJ will not rush to adjust policy that could be interpreted as tightening and concludes:
Some reduction in JPY now may be the necessary balance to avoid a sudden and unwanted spike in JPY later.
Expect 146-150 range in the coming months with heightened volatility.