By Wayne Cole
SYDNEY, Oct 24 (Reuters) - An auction of short-term Australian government debt on Thursday failed to draw enough bids to sell all the notes on offer, a rare miss that has not happened since 2002.
The Australian Office of Financial Management (AOFM), which manages the government's debt, said a regular sale of A$1 billion ($684.50 million) of notes maturing on Jan. 24 attracted bids worth just A$936 million, for a bid-to-cover ratio of 0.9263.
A ratio under 1 is exceptionally rare for Australian government debt, which carries the top triple-A credit rating and usually draws more than enough demand.
An auction last week of A$500 million of the same January notes drew bids worth A$1.95 billion.
The auction miss was unusual enough for the AOFM to issue a statement declaring, "Today's result is in no way a default by the Commonwealth of Australia.
"Treasury notes are a short-term debt instrument, and as such, are not part of planned issuance to achieve the AOFM's annual funding task."
The AOFM plans to issue A$58 billion in treasury bonds in the year to the end of June 2020 and now has securities on issue worth A$567 billion.
The agency said treasury notes were used for short-term cash management, and it held plenty of liquid assets to manage funding needs week-to-week.
Analysts saw no need for alarm.
"This was a technical issue and we're not concerned at all," said Martin Whetton, head of bond & rates strategy at Commonwealth Bank of Australia.
"The AOFM has billions in cash on hand and a miss of A$64 million in a single auction is immaterial."
He added, "It's more an issue of maturity, with buyers clearly favouring the longer-dated offer on this occasion."
He aid a sale of A$500 million in April treasury notes also conducted on Thursday drew bids worth A$2.5 billion. ($1=1.4609 Australian dollars)