Delivery Services Electric and Hybrid Vehicles Government Contracts and Procurement Oshkosh Corporation Postal Service (US) Postal Service and Post Offices Trucking News Trucks and Trucking Workhorse Group Inc 24 Feb by Vitaliy Dadalyan Delivery Services, Electric and Hybrid Vehicles, Government Contracts and Procurement, Oshkosh Corporation, Postal Service (US), Postal Service and Post Offices, Trucks and Trucking, Workhorse Group Inc, Yahoo Finance Workhorse Stock Plunges After Losing USPS Contract Workhorse, a small truck maker with big ambitions, was counting on the deal for a surge in revenue. Its shares lost $2 billion in value.