Landstar System, Inc. provided earnings guidance for the first quarter of 2021. The company anticipates revenue for the 2021 first quarter to be in a range of $1.10 billion to $1.15 billion. Based on the range of revenue estimated for the 2021 first quarter, the company would anticipate diluted earnings per share to be in a range of $1.55 to $1.65. This range of diluted earnings per share includes insurance and claims expense estimated at 4.6% of BCO revenue.