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Key Takeaways
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CoStar’s value-weighted property index fell 1.3% in August, extending its losing streak to five months.
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The equal-weighted index rose 1.4% and finished just 0.5% below its March record.
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Repeat-sale volume fell year over year, while office and retail deals produced the largest aggregate value losses.
Commercial property pricing moved in opposite directions in August. CoStar reported that its index for larger transactions fell 1.3%, while its equal-weighted measure rose 1.4%. The latest repeat-sales data show a widening gap between institutional-grade assets and smaller properties. The value-weighted index has now declined for five straight months. By contrast, the equal-weighted index recorded its first monthly increase since March. That measure finished August just below its all-time high.
Large Assets Extend Their Slide
The value-weighted US Composite Index fell 4% over the previous three months. It also stood 1.4% below August 2025 and 19.4% below its July 2022 record. Because expensive transactions carry more influence in that index, it closely reflects larger assets in major investment markets. CoStar said prices remained weak across large office, apartment, retail and industrial sales. Smaller properties in secondary and tertiary markets moved in the other direction.
The equal-weighted index gained 1.2% over the quarter and 2.2% over the year ended in August. August transaction activity also weakened from the prior year. That makes the divergence more notable because smaller-asset prices improved despite fewer repeat sales overall. CoStar capital-markets analytics director Chad Littell said supply pressure is easing while demand in the general commercial segment improves. He described the market as moving toward better balance after a difficult stretch.
The Details
CoStar based its August readings on 1,534 properties that had sold at least twice. Its broader database contains more than 353,501 repeat sales since 1996. August repeat-sale transaction count fell 8.6% from a year earlier. Those deals generated $11.3B in volume, down 10.3% year over year.
Office deals posted the largest aggregate decline from prior sale values. The 265 office repeat sales produced a combined loss of $324.5M. Retail also finished negative. Its 455 repeat sales generated a combined $42.4M loss.
