The yen fell sharply after the Federal Reserve adopted hawkish interest rate hikes, which raised the risk level of the Bank of Japan's policy meeting on Friday. The strategist warned that unless officials can convince the market that monetary policy will be further tightened in the future, the yen may continue to weaken.

The yen fell sharply after the Federal Reserve adopted hawkish interest rate hikes, which raised the risk level of the Bank of Japan's policy meeting on Friday. The strategist warned that unless officials can convince the market that monetary policy will be further tightened in the future, the yen may continue to weaken.