Bond issuance in international markets in the last week of September ensured issuance volume for the month was the largest for the year to date. Thanks to a US$5 billion raising by BHP Billiton, total issuance for September stands at the equivalent of A$16.6 billion, well ahead of the A$13.4 billion raised in April.Among banks, ANZ Bank (rated AA-) sold €1 billion of three-year euro floating-rate notes at a spread of 33 basis points over Euribor last week.Macquarie Bank (rated A) raised €100 million for one year, at a spread of 21 bps over Euribor.In the US s144A market, National Australia Bank raised US$100 million for one year, at Libor flat.In the domestic corporate bond market, BVNP Paribas (rated A+), which last issued in January, sold A$500 million for four years in fixed-rate and floating-rate notes priced at 115 bps over bank bills/swap. Earlier in the year, BNP paid a spread of 155 bps over bank bills/swap for five-year money.ING Bank Australia is buying back all the 2014 maturity bonds it sold in 2009. The bank is offering to use a discount rate of swap less 10 basis points. Pricing will take place on Wednesday.