What CoStar Group, Inc. told the SEC could break it.

CoStar's marketplaces (LoopNet, Apartments.com, Homes.com, OnTheMarket, Domain, Land.com) depend on advertising revenue from the real-estate industry; a pullback in broker/agent/owner advertising would harm results.

“Our marketplace businesses, including the LoopNet Network, the Apartments.com Network, the Homes.com, OnTheMarket and Domain residential marketplaces, and the Land.com Network, depend on advertising revenue generated primarily through sales to persons in the real estate industry, including broker, agents, property managers and owners, real estate agents, and other advertisers.”

Some of Matterport's hardware suppliers are in China; recent U.S. tariffs or other restrictions could limit or impair access to those suppliers and parts as CoStar scales hardware production.

“In addition, some of our suppliers are located in China. Our access to suppliers in China may be limited or impaired as a result of tariffs, including those that have been recently introduced by the current U.S. administration, or other government restrictions in response to geopolitical factors.”

Matterport (acquired 2025) relies on a limited number of suppliers — in some cases a single supplier — for camera and hardware components, with no proven alternative manufacturers, risking supply interruption.

“Matterport relies on a limited number of suppliers to supply its hardware components for its cameras and other hardware products, including in some cases only a single supplier for some products and components. This reliance on a limited number of manufacturers increases its risks, since Matterport does not currently have proven reliable alternative or replacement manufacturers beyond these key parties.”

CoStar makes extensive use of third-party cloud and SaaS providers it does not control; cyberattacks or disruption to those third-party IT systems could materially impact operations and financial results.

“Because we make extensive use of third-party service providers, such as cloud and SaaS services, significant cyberattacks that disrupt or result in unauthorized access to third-party IT Systems could materially impact our operations and financial results.”