ANZ had gross loans of almost $655 billion as of March this year, but its home loan book was flat at $278 billion.
ANZ chief executive Shayne Elliott promised discipline on pricing, as competition for refinancing of fixed mortgages intensifies. But Westpac and ANZ are competing hard on price, with potential implications for net interest margins despite the rising rate environment. JP Morgan analyst Siddharth Parameswaran this month told clients that the ACCC might look at such a deal, but noted Suncorp had only 2 per cent of market share in total Australian lending.A deal would also require federal treasurer approval under the Banking Act. Mr Chalmers, also a Queenslander, declined to comment on Sunday.