At ASB, net interest income rose 10 per cent to $1.2 billion, reflecting customers switching to higher-margin floating rate loans from fixed, with the proportion on floating rates rising to 63 per cent as at June 30, from 59 per cent a year earlier. Home loans outstanding were unchanged at $37 billion.
Other banking income fell 12 per cent to $323 million, including lower trading income, transaction and lending fees.
Customer deposits climbed 4 per cent to $37 billion, which the lender said reflected customer demand for low-risk investments. Business loans rose 4 per cent to $15 billion.
Operating expenses rose 1 per cent to $743 million while impairments for bad loans fell 35 per cent to $47 million.
Total assets in New Zealand rose to $65.6 billion, of which $63.4 billion is in ASB Bank. That's up from $65.4 billion as at June 30 last year. Total liabilities were little changed at $60.2 billion.
Based on ASB's separately released results, its net interest margin widened to 2.16 per cent from 2.01 per cent.
CBA's net income rose 11 per cent to a record A$7.09 billion, just below the A$7.15 billion forecast in a Bloomberg survey of 10 analysts, helped by a drop in loan impairments and increased lending.
Shares of CBA traded at A$55.54 on the ASX yesterday and have climbed 13 per cent this year. The stock is rated a 'hold' based on the consensus of 19 recommendations compiled by Reuters, with a price target of about A$52.08.