Home values have now fallen for five months in a row, and the ASX is already feeling the impact.
Cotality's national index dropped 0.9% in August, which leaves values 3.6% below their March peak.
REA Group Ltd (ASX: REA) shares fell 4.21% on Monday as the data landed, whereas Stockland Corp Ltd (ASX: SGP) climbed 2.29% on the same day.
Understanding that divergence will be key in determining how ASX investors should position themselves.
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Why falling home values matter for ASX investors
The downturn has stopped being a Sydney story.
Ninety-three per cent of capital city suburbs recorded a decline over winter, and every capital except Darwin went backwards across the three months.
Sydney led the falls with a 1.4% drop in August and now lies 7.1% below its February peak.
Melbourne and Canberra each fell 1.1%, while Adelaide and Perth were down 0.8%.
Sales volumes are tracking 15.5% below the same period last year.
Cotality research director Tim Lawless summed up the change:
What started as a more concentrated easing across higher-value segments has now become a much more generalised softening, with the vast majority of capital city suburbs recording some level of decline.
For investors, the core question is whether a company earns its money from prices, from volumes, or from the loans behind them.
REA Group has the most direct exposure
REA Group is paid by agents to list properties.
When sales volumes fall 15.5%, that quickly becomes a revenue problems.
REA shares closed Monday at $169.78 and are down 30.19% over the past twelve months.
FY26 was still a strong year for the business.
Revenue rose 7% to $1,793 million and net profit after tax climbed 15% to $650 million, with the operating EBITDA margin expanding three percentage points to 61%.
The company lifted its dividend 20% to $2.97 per share.
The catch is the outlook, where management expects national buy listings to be flat to down low single digits in FY27.
Stockland is building into weaker home values
Stockland sells new houses and land, which is a different business entirely.
The company's FY26 result delivered funds from operations of $892 million, up 10.4%, with FFO per security rising 9.1% to 36.9 cents.
Masterplanned community settlements jumped 30% to 8,902 lots and land lease settlements rose 48% to 777 homes.
Gearing improved to 22.7% from 25.2%.
FY27 guidance is for FFO per security of 38.0 to 39.0 cents.
At around $4.46 the shares trade on a price-to-earnings ratio of 10.51 and yield 5.85%, having fallen 28.64% across the year.
Affordability improves as prices fall, which is precisely why a residential developer can rally on a weak housing print.
Commonwealth Bank owns the mortgages
Commonwealth Bank of Australia (ASX: CBA) is the largest mortgage lender in the country.
The company's FY26 result produced cash net profit after tax of $10,982 million, up 7%, on a net interest margin of 2.05%.
Home loan arrears at 90 days or more were at 0.73%, and the loan impairment expense rose 9% to $788 million.
Chief executive Matt Comyn noted that housing activity had softened from a high base while application volumes appeared to have stabilised in recent weeks.
Falling home values do not create losses on their own. But they matter when borrowers cannot pay and the security is worth less than the loan.
Arrears of 0.73% are elevated and alarming, yet CBA still managed to return $5.05 per share fully franked to shareholders.
Foolish takeaway
The three companies are at very different points of the same cycle.
REA Group looks the most exposed, because listing volumes are already falling and the multiple still assumes growth.
Stockland arguably benefits, since cheaper land and better affordability feed straight into its development pipeline.
CBA sits somewhere in between, with a slower loan book but no real credit problem yet.
If home values keep sliding through spring, I would expect the gap between the three stocks to widen.
