Macquarie’s assault on the business banking market is off to a sputtering start as the industry “maverick” fails to replicate its growth in mortgages in the realm of commercial lending.

The share of business lending controlled by Australia’s fifth major bank has flat-lined since last February, according to prudential data. That’s when Macquarie’s executive in charge of banking and financial services, Greg Ward, first flagged he would deploy its market-leading technology stack to lure business customers from the big four.