By Wayne Cole
SYDNEY, Aug 5 (Reuters) - The Australian and New Zealand dollars resumed their ascent on Wednesday as falling Treasury yields undermined the U.S. dollar, while domestic data showed a surprise dip in New Zealand's jobless rate.
The Aussie pushed up to $0.7189 AUD=D3 and back toward a 17-month peak of $0.7227 reached last week. Immediate support comes in around $0.7107 and $0.7077.
The kiwi dollar edged ahead to $0.6648 NZD=D3, but remained short of a recent seven-month top at $0.6716. Support lies at $0.6590 and $0.6575.
Speculation of further Federal Reserve easing has fuelled a steady decline in U.S 10-year yields so that Australian bonds AU10YT=RR now pay almost 31 basis points more, up from just 16 basis points a couple of months ago.
Two-year Treasury yields were also near historic lows at 0.11% having fallen in the past week amid wagers the Fed might ultimately shift to negative cash rates. FEDWATCH
The comparable Australian three-year yield AU3YT=RR has been relatively steady around 0.27% with the Reserve Bank of Australia (RBA) showing no appetite to ease anytime soon.
The RBA did announce a new round of bond purchases on Wednesday but the modest sum of A$500 million ($359 million)disappointed dealers who had hoped for a more significant amount.
The Aussie also drew support from a jump in gold prices to record highs and a further climb in iron ore to a one-year peak. Both commodities are big export earners for Australia.
In New Zealand, data showed the jobless rate dipped to 4.0% in the June quarter when analysts had expected a jump to 5.8%.
Yet the detail was softer as more people gave up looking for a job, while hours worked fell by a record and underutilisation surged.
"The actual picture differs vastly from the unemployment rate, which was affected by people not being able to actively seek work during lockdown," said Jarrod Kerr, chief economist at Kiwibank.
"The unemployment rate will jump in the September quarter, and the RBNZ knows it. More monetary policy stimulus is coming."
The Reserve Bank of New Zealand (RBNZ) holds a policy meeting next week and Kerr expects it will raise the limit on its large scale asset purchasing programme from NZ$60 billion.
The central bank is also likely to expand on what further policy measures it might undertake, including negative interest rates.
($1 = 1.3914 Australian dollars)
(Reporting by Wayne Cole; editing by Richard Pullin)
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