AUD/USD holds above 0.6220 (Monday's low) amid China stimulus hopes

China plans record $411 billion special treasury bond issuance next year

AUD tends to act as liquid proxy for yuan; China is top trade partner for Oz

Iron ore up on China report (iron ore is big export earner for Australia)

0.6199 was 26-month low for AUD/USD last week, after hawkish Fed guidance

RBA minutes showed central bank opening door to easing as early as February