YRC Worldwide Inc. posted losses for both the fourth quarter and the year as it was weighed down by the United Auto Workers strike against General Motors Co., facilities closings and weakening freight traffic in its core Midwest market.

Saia Inc. saw profits dip in the fourth quarter even though revenue continues to grow at a healthy pace.

While revenue and profits dipped in the fourth quarter, Paccar Inc. extended its streak of annual profitability to 81 consecutive years in 2019 as it posted records for net income and revenue.