Commodity currencies could face fresh vulnerability Interesting times for two of the main "commodity currencies." The recent rebound in metal prices - iron ore and copper have had a good few weeks on raised hopes for Chinese demand - has helped the Australian dollar halt the slide that began mid-April. A dip below $0.90 has since been reversed and is one which technical analysts may come to see as a "head" in an inverted "head and shoulders" pattern. A possible precursor for an Aussie rebound? But the minutes of the Reserve Bank of Australia's latest policy meeting are released early in Tuesday's global session and analysts at Citi say the Aussie is vulnerable "because markets look poorly positioned for a reiteration of RBA dovishness." Meanwhile, keep an eye on the loonie. The Canadian dollar has been relatively steady of late but it may come under pressure if foreign investors continue to follow new Bank of England governor Mark Carney out of the country. Latest data show foreign holdings of Canadian securities fell C$15.4bn in June. That was the largest decline since October 2007.