North America's largest dry van truckload fleet runs on thin margins and brutal economics. Knight-Swift Transportation Holdings generated $7.46 billion in fiscal year 2024 revenue while posting a net income of just $118 million — a net margin of 1.6% that reflects what happens when a 34,000-employee freight operation faces the most prolonged trucking downcycle in recent memory. The company exists because of a 2017 merger between two competitors who had been watching each other's playbooks for decades. Knight Transportation — founded in Phoenix, Arizona in 1990 by Kevin Knight, Keith Knight, Randy Knight, and Gary Knight — built its reputation on operational discipline and driver retention in the dry van segment. Swift Transportation, founded in 1966 by Jerry and Carl Moyes, was the larger of the two, a sprawling operation that had grown through acquisition into one of the most recognized names in long-haul freight. The $3.6 billion merger in 2017 created Knight-Swift, the entity now headquartered in Phoenix and led by CEO Adam Miller. The combined company moves freight across every major manufacturing and agricultural corridor in North America. Its revenue base is split across truckload freight, less-than-truckload operations through a network of regional terminals across the southern and western United States, and dedicated contract services that move freight for specific shippers under long-term agreements. The LTL segment represents a strategic diversification away from the commoditized spot market that has caused the most financial damage during the 2022-2024 freight recession. What Knight-Swift does with those businesses over the next several years will determine whether the 2017 merger thesis holds up: the original argument was that scale would create pricing power in truckload and enable investments in adjacent freight modes that pure-play carriers could not afford.