AOFM sells $2b of Treasury notes THE Australian government has sold $2 billion of Treasury notes in two tranches. The first tranche was worth $1 billion and matures on October 25, 2013. It was sold for a weighted average yield of 2.3805 per cent and attracted bids totalling $5.295 billion, with a coverage ratio of 5.30. The second tranche was also worth $1 billion and matures on November 8, 2013. It was sold for a weighted average yield of 2.3969 per cent and attracted bids totalling $4.406 billion, with a coverage ratio of 4.41.