CBA and Macquarie surge as Suncorp and BOQ decline
APRA’s June 2026 MADIS data show CBA, Westpac, NAB, ANZ, Macquarie and ING expanding housing loan books, while Suncorp Bank and BOQ declined. CBA’s housing book rose to A$635.5bn (+A$5bn). Macquarie’s rose to A$183.7bn (+1.88%). Suncorp fell to A$57.0bn and BOQ to A$51.2bn. HSBC edged up to A$35.1bn.
How this was made

The 30-second read
Why it matters
Traders can use the monthly book-growth divergence to frame relative positioning across Australian bank stocks, especially for names showing persistent contraction (Suncorp, BOQ) versus challengers with faster growth (Macquarie, ING).
Market read
June mortgage-book growth data show a two-speed market, with CBA and Macquarie leading on growth while Suncorp and BOQ continue to shrink.
What to watch
The article does not cover funding costs, NIM, arrears, or impairment trends, which are typically more market-moving than book growth alone.
Background
The piece summarizes APRA MADIS June 2026 housing-loan statistics across major and mid-tier Australian banks, highlighting growth rates and an investor-leaning mix under new macroprudential DTI rules.
Ticker impact
ING’s total housing loans rose to $74.2B in June, up $0.56B (0.76%), with investor balances up 1.45% versus 0.54% for owner-occupiers.
Potentially supportive for relative-value trades versus slower growers, but likely limited absolute impact.
The article provides growth rates but no incremental guidance, margins, or credit metrics.
HSBC Australia’s housing loan book rose to $35.1B in June, up $0.15B (0.44%), ahead of its agreed sale of the $36B portfolio to Blackstone.
Neutral-to-slightly positive near-term, but the sale overhang may cap upside.
The article includes the sale context, but does not provide timing, economics, or impact on earnings.
Market effects
Reinforces that investor lending is still driving growth for multiple ADIs under APRA’s DTI macroprudential cap, supporting a continued divergence in mortgage momentum.
Australia mortgage market shows a split between majors and challengers versus mid-tier retrenchment names, which can influence relative bank flows in AU-listed financials.
Limited direct global spillover, but it can affect international investors’ risk appetite toward Australian bank credit and housing-exposure narratives.
Counterpoint
Monthly housing-book growth may not translate into earnings or credit quality; investor-tilt could increase future risk if arrears rise later.
Key entities
- regulatorAPRA
Australian Prudential Regulation Authority, whose MADIS releases and macroprudential DTI rules are referenced.
- acquirerBlackstone
Named as the buyer of HSBC Australia’s $36B home and personal loan portfolio.
- bankSuncorp
Housing book declined in June; article links weakness to strategic retrenchment ahead of acquisition narrative.
- bankBank of Queensland (BOQ)
Housing book declined in June, with owner-occupier contraction cited as the driver.


