 TONITOWN, AR ACCESSWIRE July 14, 2021 P.A.M. Transportation Services, Inc. NASDAQ:PTSI today reported net income of 15.3 million, or diluted earnings per share of 2.66, for the quarter ended June 30, 2021, and net income of 27.3 million, or diluted earnings per share of 4.74, for the six-month period then ended. 