The Dodge Momentum Index (DMI) ticked down by 1.2% in August to 171.9 from the revised July figure of 174.0. The Momentum Index, issued by Dodge Construction Network, is a monthly measure of the initial report for nonresidential building projects in planning, shown to lead construction spending for nonresidential buildings by a full year. In August, the commercial component of the Momentum Index rose 1%, while the institutional component fell 5.6%.