The Australian and New Zealand dollars extended their gains on Wednesday, capitalizing on a wave of optimism triggered by surprisingly soft US inflation data.

The kiwi dollar rose 0.2% to $0.5822, building on an overnight surge of 1.1% that pushed it to a one-month peak of $0.5859.

The Australian dollar followed a similar trajectory, buoyed by the same macroeconomic tailwinds.

The currency strength reflects a rapid repricing of Federal Reserve policy expectations.

The softer-than-expected US price data has accelerated investor bets on imminent rate cuts, reducing the yield advantage of the US dollar and providing immediate support for higher-yielding commodity currencies.

This shift in the rate outlook is the primary driver behind the session's moves, rather than domestic economic data from Australia or New Zealand.