USD/JPY Grinds Higher ahead of FOMC, AUD/JPY Clings to Support

Market impact: moderately bullish USD/JPY into the September 16, 2026 FOMC, but with elevated event risk.

The key market change is the reported sharp firming in expectations for a Federal Reserve rate hike. That raises U.S. yield support and improves the dollar’s carry advantage over the yen, which is consistent with the recent USD/JPY recovery. USD/JPY is particularly sensitive to the U.S.–Japan rate differential and Treasury yields, so the pair’s immediate bias remains higher while those expectations are maintained.

However, the pre-FOMC move may already reflect a substantial portion of the hawkish repricing. The important question is not simply whether the Fed hikes, but whether its statement, projections, and press conference imply additional tightening or keep future policy restrictive. A hike accompanied by hawkish guidance could extend dollar strength and push USD/JPY higher; a hike that is fully priced or paired with cautious forward guidance could trigger a “buy the rumor, sell the news” reversal. Markets commonly react to the gap between expectations and the actual decision rather than to the decision in isolation.

For USD/JPY, the bullish interpretation is that higher U.S. yields and renewed carry demand attract dollar buyers, while the pair’s recovery indicates that last week’s yen strength has not yet developed into a sustained trend. The bearish counterargument is that a dovish surprise, softer dot-plot guidance, or a decline in Treasury yields would remove the main driver of the rebound. Any renewed concern about excessive yen weakness or potential Japanese policy response would also make upside more unstable.

AUD/JPY has a more fragile risk profile. Its decline of more than 4.6% over two weeks signals a meaningful unwind in the Australian-dollar/yen carry trade. A major support cluster can produce a technical bounce, particularly if the FOMC avoids tightening financial conditions further. But support-based recovery would initially look corrective unless accompanied by improved global risk appetite, firmer commodity sentiment, or stabilization in China-sensitive assets. AUD/JPY is therefore more exposed than USD/JPY to a broader risk-off response to a hawkish Fed. Carry trades involve buying a higher-yielding currency against a lower-yielding one, making them vulnerable when volatility rises or funding-currency demand returns.

Trading framework:

the immediate bias is mixed-to-positive for USD/JPY and cautiously bearish for AUD/JPY, but conviction should remain limited before the FOMC. A hawkish outcome could lift USD/JPY while weighing on AUD/JPY through both stronger USD funding conditions and weaker risk appetite. A dovish or less-hawkish outcome could produce the opposite reaction: dollar retracement, yen weakening through lower U.S. yields, and a relief bounce in AUD/JPY.

Traders should monitor the Fed’s rate decision on Wednesday, September 16, 2026, the updated projections, U.S. Treasury yields, and whether USD/JPY holds its recovery after the announcement. For AUD/JPY, the key confirmation would be whether support attracts sustained demand or merely pauses the broader decline. Japanese official commentary, China-related developments, equity-market volatility, and commodity prices remain important risks to the initial interpretation.