Based on figures from the seven mortgage lending banks' general disclosure documents, ASB's market share rose to 24.13% from 24.07% at the end of June and from 23.74% at the end of September 2005.

A percentage point of the mortgage market is now worth $1.25 billion.

The value of ASB's mortgage book rose by nearly $1 billion to $30.13 billion during the latest three months while it rose $4.02 billion during the year ended September 2006.

ASB's net profit rose 8.5% to $115 million in the latest quarter.

Kiwibank's market share rose to 2.19% from 2.07% at the end of June and 1.65% at the end of September 2005, its mortgage book growing from $1.81 billion to $2.73 billion during the year. Its net profit for the latest quarter jumped 137% to $5.3 million.

BNZ's market share eased to 16.36% from 16.41% at the end of June and from 16.46% at the end of September 2005. Its mortgage book rose from $18.11 billion at the end of September 2005 to $20.43 billion in September 2006.

BNZ's net profit for the September quarter rose 9% to $157 million, bringing its annual result up 15.2% to $605 million.

Among the other banks, Westpac gained market share in the September quarter, from 19.52% at the end of June to 19.63%, while ANZ/National continued to lose some, from 34.99% to 34.86%, as did HSBC, from 1.67% to 1.55%.

ANZ/National's mortgage book remains the largest at $43.53 billion, up from 42.4 billion at the end of June..

Westpac's net profit for the quarter was unchanged at $152 million, ANZ/National's rose 12.6% to $269 million and HSBC's rose 16.7% to $7.21 million.

TSB Bank's market share was steady at 1.28% while its net profit for the three months ended September rose 7.9% to $9.28 million.