Chicago Led Major Cities in CMBS Distress in August
Chicago reached a 25.3 percent commercial mortgage-backed securities distress rate in August 2026.
Updated on Oct. 5, 2026 in Commercial
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Chicago recorded the highest delinquency and special servicing rate among Major League Baseball playoff cities, hitting 25.3 percent in August 2026. This figure reflects a 4.7 percentage point increase compared to the previous year.
Why it matters
Distress rates are heavily influenced by office assets, which account for 45.5 percent of all national distressed commercial mortgage-backed securities balances. These high levels of non-payment highlight the broader financial strain on commercial property owners.
The Aon Center loan of $536 million failed to repay at maturity in July, with the building's valuation dropping from $824 million to $195 million. Nationally, office-related distress rates have climbed to 16 percent.
The players
Aon Center
This major office complex is a significant Chicago property that recently experienced a sharp decline in appraisal value.
The details
Loans are considered distressed if they become delinquent or enter special servicing, metrics that show significant variations across U.S. markets. For example, while Chicago led the cities in distress, Cleveland recorded 22.5 percent, Milwaukee hit 22.4 percent, and San Diego maintained a rate of just 0.3 percent.
Timeline
In July 2026, the Aon Center loan matured and was not repaid.
August 2026 saw Chicago CMBS distress reach 25.3 percent.
September 2026 recorded a preliminary national CMBS distress rate of 10.8 percent.
Culture Shift
The current distress trend follows the national pattern where office assets comprise 45.5 percent of total distressed CMBS balances. Chicago's market performance underscores a broader shift in commercial real estate stability as urban office valuations face downward pressure.
Property owners and local investors may face tightening credit conditions as financial institutions adjust to elevated local distress levels. Tenants in distressed buildings may also face uncertainty regarding building maintenance and management stability.
The takeaway
Commercial property distress remains highly sensitive to office sector performance and changing valuations. Investors should monitor maturity schedules closely as higher interest rates and valuation gaps continue to impact the market.
Further reading
For more information on market trends, visit our Commercial section.
Source note: This article includes information reported by Commercial Observer.
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