SBS Bank took a hit in the June quarter after deciding not to pass on rising wholesale interest rates to its customers.

ANZ Bank's share of the mortgage market continued to slide in the June quarter although its profitability improved markedly as a result of lower charges for bad loans.

TSB Bank grew its share of the mortgage market slightly in the June quarter but net profit fell sharply due to factors such as interest expense growing faster than interest income and tax changes.

Bank of New Zealand's mortgage book in the June quarter grew at its fastest pace since the June quarter of 2009 despite the overall mortgage market being particularly slow.

Westpac continued to grow its mortgage book aggressively in the June quarter and its profitability jumped sharply on much lower charges for bad loans.

Kiwibank continues to grow its mortgage book at a much faster pace than its market share but its momentum continues to wane.

While floating rate mortgages will rise again thanks to Reserve Bank governor Alan Bollard, the good news is they probably won't rise as much or as fast as previously expected.

Reserve Bank governor Alan Bollard will probably raise interest rates next week, despite recent data, particularly on the housing market, retail spending and inflation, being softer than expected.

Net new lending on mortgages by banks is slowing markedly with three of the big four banks punching well below their weight, their general disclosure statements show.

Reserve Bank governor Alan Bollard raised interest rates as expected, ensuring floating mortgage rates are on the way up.

Reserve Bank governor Alan Bollard is likely to start hiking interest rates this week even though the housing market and consumer spending remain subdued and Europe's sovereign debt woes are pushing up banks' cost of borrowing.

Reserve Bank governor Alan Bollard appears to have given himself a little "wiggle room" on when he's likely to start hiking interest rates and has also signaled rates may not need to rise as much as in previous cycles.

With retail spending and the housing market faltering and domestic inflation running below the Reserve Bank's expectations, governor Alan Bollard is likely to leave interest rates unchanged at record lows next week but everybody is expecting a hike soon.

ASB Bank's December quarter profit slipped, as did its share of the mortgage market.

Reserve Bank governor Alan Bollard stuck to the script in leaving interest rates unchanged and indicating he may start hiking about the middle of the year.

Softer than expected inflation, retail sales and employment data and signs the housing market recovery has stalled will likely mean Reserve Bank governor Alan Bollard leaves interest rates unchanged on Thursday and he will reiterate the first rate hike is likely about mid-year.