The New Zealand dollar was headed for a 0.8 per cent weekly decline as more buoyant US figures bolstered demand for the greenback and kiwi sentiment was dented by Fonterra Co-operative Group cutting its forecast payout and speculation that the Reserve Bank will make good on hints it will intervene in the currency market.
The kiwi slid to US84.95c at 5pm in Wellington, from US85.60c at 8am on Monday and above US88c last month.
The trade-weighted index slipped to 79.71 from 79.90 on Monday.
While lower commodity prices and intervention talk weighed on the kiwi locally, better economic figures from the US increased demand for the greenback.
A report this week showed the US economy expanded at a 4 per cent annual rate in the second quarter, beating the 3 per cent expectation of economists in a Reuters poll and after shrinking 2.1 per cent in the first quarter.