Market Data

February 19, 2026
ABI tumbles as architectural billings soften further
Written by Laura Miller
The AIA/Deltek Architecture Billings Index (ABI) tumbled in January, as business softened further at architectural firms across the US.
Since October 2022, the ABI, a 9- to 12-month leading indicator for nonresidential construction, has been below 50, indicating contraction in billings.

