AUDUSD – Testing Key ResistanceAustralian Dollar/US DollarFX:AUDUSDradhioheadAUDUSD has extended its recovery from the 0.6420 channel base and is now testing a significant resistance band at 0.6660. The breakout from the channel has underpinned a constructive near-term bias, but price action is showing signs of fatigue as it approaches prior supply. We see limited risk-reward in chasing longs at current levels. A rejection from resistance would open scope for a corrective pullback toward 0.6450. Conversely, a sustained defense of that zone would provide the platform for another test of 0.6660. A clear break above would re-establish upside momentum, whereas repeated failure would likely tilt near-term flows back toward sellers. Overall, AUDUSD sits at an inflection point, with positioning now sensitive to headline risk and broader USD dynamics.