Macquarie is emerging as a force in the home loan market, with A$49 billion in home loans funds under management and accelerating growth.In an operational briefing yesterday, Macquarie said its mortgage portfolio at December 2019 was up 11 per cent on the September quarter.The deposit book for the bank, by contrast, was up three per cent to $58 billion.The bank said 73 per cent of mortgage flow is owner-occupied, with 90 per cent in the eastern states and an average home loan size of $600,000.Matthew Wilson, analyst with Evans and Partners, summed up Macquarie Group yesterday in a note:"[The bank] is clearly positioning itself as the largest and most threatening retail/ business banking fintech, with 50 per cent of IT infrastructure in the cloud and with 100 per cent targeted by 2022."With more than 1.5 million clients and footings of A$130 billion driving an NPAT of A$756 million Macquarie equates to around 10 per cent of the size of an average major bank. "However, it invests approximately 40 per cent of the major bank spend on IT to drive a real technology edge, with no legacy and no back-book to defend."