The Architecture Billings Index (ABI), produced by the AIA Economics & Market Research Group, is a leading economic indicator that provides an approximately nine- to twelve-month glimpse into the future of nonresidential construction spending activity. The diffusion indexes contained in the full report are derived from a monthly “work-on-the-boards” survey that is sent to a panel of AIA member-owned firms.
Participants are asked whether their billings increased, decreased, or stayed the same in the month that just ended as compared to the prior month, and the results are then compiled into the ABI. These monthly results are also seasonally adjusted to allow for comparison to prior months. The monthly ABI index scores are centered around 50, with scores above 50 indicating an aggregate increase in billings, and scores below 50 indicating a decline.
Following a generally positive performance in 2015, the Architecture Billings Index has begun this year modestly dipping back into negative terrain. The AIA reported the January ABI score was 49.6, down slightly from the mark of 51.3 in the previous month. This score reflects a minor decrease in design services (any score above 50 indicates an increase in billings). The new projects inquiry index was 55.3, down from a reading of 60.5 the previous month.
“The fundamentals are mostly sound in the nonresidential design and construction market,” said AIA Chief Economist, Kermit Baker, Hon. AIA, PhD. “January was a rocky month throughout the economy, with falling oil prices, international economic concerns, and with steep declines in stock market valuations in the U.S. and elsewhere. Some of the fallout of this uncertainty may have affected progress on design projects.”
Key January* ABI highlights:
- Regional averages: West (50.8), Northeast (50.4), South (50.3), Midwest (48.9),
- Sector index breakdown: multifamily residential (51.9), commercial / industrial (50.5), institutional (49.9), mixed practice (49.0)
- Project inquiries index: 55.3
- Design contracts index: 50.9
The regional and sector categories are calculated as a 3-month moving average, whereas the national index, design contracts and inquiries are monthly numbers.
* Every January the AIA research department updates the seasonal factors used to calculate the ABI, resulting in a revision of recent ABI values.
Related Stories
Market Data | May 7, 2018
Construction employers add 17,000 jobs in April and 257,000 for the year
Unemployment rate for construction increases slightly compared to year earlier as higher pay levels appears to be attracting people with recent construction experience back into the workforce.
Market Data | May 2, 2018
Construction employment increases in 245 metro areas between March 2017 & 2018, as trade fights & infrastructure funding shortfalls loom
Houston-The Woodlands-Sugar Land, Texas and Weirton-Steubenville, W.Va.-Ohio experience largest year-over-year gains; Baton Rouge, La. and Auburn-Opelika, Ala. have biggest annual declines.
Market Data | May 2, 2018
Nonresidential Construction down in March, private sector falters, public sector unchanged
February’s spending estimate was revised roughly $10 billion higher.
Market Data | Apr 30, 2018
Outlook mixed for renewable energy installations in Middle East and Africa region
Several major MEA countries are actively supporting the growth of renewable energy.
Market Data | Apr 12, 2018
Construction costs climb in March as wide range of input costs jump
Association officials urge Trump administration, congress to fund infrastructure adequately as better way to stimulate demand than tariffs that impose steep costs on contractors and project owners.
Market Data | Apr 9, 2018
Construction employers add 228,000 jobs over the year despite dip in March
Average hourly earnings increase to $29.43 in construction, topping private sector by nearly 10%; Association officials urge updating and better funding programs to train workers for construction jobs.
Market Data | Apr 4, 2018
Construction employment increases in 257 metro areas between February 2017 & 2018 as construction firms continue to expand amid strong demand
Riverside-San Bernardino-Ontario, Calif. and Merced, Calif. experience largest year-over-year gains; Baton Rouge, La. and Auburn-Opelika, Ala. have biggest annual declines in construction employment.
Market Data | Apr 2, 2018
Construction spending in February inches up from January
Association officials urge federal, state and local officials to work quickly to put recently enacted funding increases to work to improve aging and over-burdened infrastructure, offset public-sector spending drops.
Market Data | Mar 29, 2018
AIA and the University of Minnesota partner to develop Guides for Equitable Practice
The Guides for Equitable Practice will be developed and implemented in three phase.
Market Data | Mar 22, 2018
Architecture billings continue to hold positive in 2018
Billings particularly strong at firms in the West and Midwest regions.
