The Japanese yen (JPY) traded flat against the U.S. dollar (USD) near 156.00 at the start of the week, hovering just above a four-month low of 155.23. The pair’s broader resilience follows the yen’s sharp rally last week, sparked by hawkish remarks from Bank of Japan (BoJ) board member Hajime Takata.
Yen Surge Fuels Speculation on BoJ Policy Trajectory
Analysts at MUFG highlighted “significant moves in the FX market, with the Japanese yen in particular strengthening sharply from the 160 level on 2 Sep all the way down to as low as 155.30 overnight, a 5 big figure move.” They attributed the shift to the evolving policy backdrop, noting that “BoJ Board Member Takata – one of BOJ’s most hawkish members – gave a speech earlier this week leaving the door open for an outsized interest rate increase as well as back-to-back hikes,” reinforcing market bets that the central bank could pursue a more aggressive tightening path if warranted.
MUFG also cited broad-based dollar weakness as a key catalyst and dismissed the likelihood of direct BoJ intervention. “It is not entirely clear whether the moves in USD/JPY were driven by FX intervention,” the bank stated, adding that “BoJ current account data for Wednesday do not suggest the moves were driven by intervention,” pointing instead to dollar softness and regional currency gains as the primary drivers.
Market attention now turns to the U.S. Consumer Price Index (CPI) for August, due Friday. The inflation print is expected to materially influence Federal Reserve rate expectations and, by extension, the dollar’s near-term trajectory.
USD/JPY Technical Analysis
On the daily chart, USD/JPY changes hands at 155.95, maintaining a bearish near-term bias as price remains well below the 100-day simple moving average (SMA) at 159.92. The distance to this moving average suggests the broader uptrend structure sits above current levels, leaving sellers in control for now.
The relative strength index (RSI) hovers near 32, just above oversold territory, indicating that downside momentum is extended but has not yet signaled a confirmed reversal.
On the upside, the 100-day SMA at 159.92 represents the first meaningful resistance bulls must reclaim to alleviate downside pressure and reopen a path toward higher levels. To the downside, the four-month low at 155.25 marks the key support zone; a decisive break below this threshold could trigger a fresh downside leg.
(The technical analysis of this story was written with the help of an AI tool. Know more.)

