New Zealand Dollar Tumbles as RBNZ Outlook Disappoints; Dollar Strengthens Across Asia

Most Asian currencies weakened on Wednesday against a broadly stronger U.S. dollar, with the New Zealand dollar falling sharply even after its central bank raised interest rates. The kiwi tumbled after the Reserve Bank of New Zealand's outlook for future policy tightening was perceived by markets as less aggressive than previously expected.

Kiwi Falters on Dovish RBNZ Outlook

The Reserve Bank of New Zealand (RBNZ) delivered an expected 25-basis-point increase to its official cash rate, bringing it to 2.75%. Despite the hike, the New Zealand dollar weakened, with the USD/NZD pair rising 0.9% to 0.5843, its lowest level since August 13, according to Investing.com data.

The negative reaction was driven by the central bank's forward guidance. Analysts at ANZ noted that the RBNZ's policy track did not clearly signal another rate increase in October and that the language surrounding future decisions was "deliberately vague and highly conditional." This led investors to price in a less hawkish path for monetary policy, pushing the currency lower.

Dollar Gains on Rising Yields and Fed Bets

The U.S. dollar's strength was underpinned by a combination of rising bond yields and growing expectations for another Federal Reserve interest rate hike in September. The yield on the benchmark U.S. 10-year Treasury note climbed to 4.81%, its highest level since late 2023.

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Market pricing now reflects a 68% probability of a September Fed rate hike, a significant increase from about 40% a week earlier, according to the CME FedWatch Tool. This shift occurred despite recent U.S. economic data, including job openings and manufacturing activity, coming in below forecasts. Rising energy prices and renewed U.S. strikes on Iran also added to inflation concerns, bolstering the dollar's safe-haven appeal.

Yen and Aussie Under Pressure

Elsewhere in the region, the Japanese yen remained near a critical level, with the USD/JPY pair trading at 160.21. The currency is under scrutiny after Bank of Japan Governor Kazuo Ueda confirmed the central bank will debate a rate increase at its September meeting, reinforcing expectations of a policy shift.

The Australian dollar also lost ground, with the USD/AUD pair rising to 1.4006. The move came as Australia's 10-year bond yield hit 5.25%, its highest since July 2011. Data from the Australian Bureau of Statistics showed the economy grew 0.4% in the June quarter, and markets are now pricing in a 58% chance of a Reserve Bank of Australia rate hike later in September.