"Much of AUD/USD's gains have been driven by broad US dollar weakness. But there has also been a partial recovery in Australia's key commodity prices, after very steep declines in April and May. However, beyond multi-week gains, a firmly on hold RBA is likely to keep a lid on AUD/USD, easing to 0.74 by year-end."
Iron ore prices rose 2 per cent overnight and have gained 32 per cent since mid-June. The Australian dollar's strength will get a test today with the release of labour market figures for June today, with expectations the Australian economy added 15,000 jobs last month, down from 42,000 in May, while the unemployment rate edged up to 5.6 per cent.
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Traders said currencies have traded in relatively tight ranges in the past 24 hours ahead of policy statements from the European central bank and the Bank of Japan.
The trade-weighted index was little changed at 77.85 from 77.86 yesterday. The kiwi traded at 56.49 British pence from 56.42 pence and at 63.88 euro cents from 63.73 cents. The kiwi traded at 82.31 yen from 82.38 yen and was at 4.9661 yuan from 4.9680 yuan.