Marten Transport, Ltd. announced earnings results for the second quarter ended June 30, 2021. For the second quarter, the company announced sales was USD 232.442 million compared to USD 212.384 million a year ago. Operating income was USD 28.518 million compared to USD 25.256 million a year ago. Net income was USD 21.418 million compared to USD 18.134 million a year ago. Basic earnings per share from continuing operations was USD 0.26 compared to USD 0.22 a year ago. For the half year, sales was USD 455.488 million compared to USD 431.030 million a year ago. Operating income was USD 52.516 million compared to USD 43.288 million a year ago. Net income was USD 39.424 million compared to USD 31.852 million a year ago. Basic earnings per share from continuing operations was USD 0.48 compared to USD 0.39 a year ago. Diluted earnings per share from continuing operations was USD 0.47 compared to USD 0.38 a year ago.