Commercial vehicle supplier Wabco Holdings Inc. reported earnings and revenue rose in the second quarter and in the six-month period as it added market share.

Volvo Group reported earnings and net sales fell in the second quarter and six-month periods, citing the slowdown in the North American truck market as a key factor that led to a plunge in orders.

Volvo Trucks North America, a unit of Volvo Group, said its next reduction at its New River Valley Plant in Dublin, Virginia, will affect about 300 employees and occur in September instead of August, as previously announced.

Growing corridors of natural-gas fueling stations, together with a scattering of other ways to power heavy-duty trucks, make up an expanding infrastructure providing alternatives to traditional diesel.

June’s sharp plunge in U.S. trailer orders reflected increased cancellations, caution on the part of fleets over placing new orders and a very strong comparable month the year before, analysts said.

Tougher regulations, more carriers carrying more products and new consumer preferences drove the order boom for refrigerated trailers the past two years. They remain catalysts as the up cycle for these trailers continues, experts said.

International Truck, a brand of Navistar International Corp., announced that it now offers predictive cruise control technology as an option on its ProStar and LoneStar Class 8 on-highway models to improve fuel efficiency and driver retention.

June marked the second time this year and only the fourth time in 19 months that demand for Class 8 trucks rose faster than the supply, ACT Research Co. reported, citing its most recent for-hire trucking index.

North American orders for Class 8 trucks in June fell to the lowest point in nearly six years, ACT Research Co. reported.