Forex: Kiwi tumbles; RBNZ ready to intervene (Barcelona) - The Kiwi has been sold-off sharply in the last few minutes, after RBNZ Governor Wheeler said the RBNZ is ready to intervene in the currency if necessary, highlighting the overvalued NZD. The pair has come down to 0.8420 from 0.8460 in the blink of an eye, extending the fall off its weekly high at 0.8488.