Mitsubishi UFJ Asset Management said a larger or out-of-cycle Bank of Japan rate hike can’t be ruled out, warning that an expected increase this month may not be enough to prevent further declines in the yen and Japanese government bonds.“To stop yen weakness, 25 basis points is not enough,” said Masayuki Koguchi, executive chief fund manager at Mitsubishi UFJ Asset Management, one of the nation’s biggest investment firms. “If inflation starts to accelerate, there’s a chance that the BOJ could hike by 50 or 75 basis points at one meeting.”“The possibility of an out-of-cycle rate hike is also not zero depending on the external environment and fundamentals,” he said.