AUD/USD retreats to 0.6890, deterred by 23.6% Fibo at 0.6925

Slips under 50 DMA support 0.6892; chart turning bearish

Tues close below that also engages Bollinger downtrend channel

That will sway AUD/USD toward Ichimoku cloud support 0.6847

RBA's hawkish tone at last meeting insufficient to buoy AUD

Risk-off spreads through Asia as China stocks reverse gains

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