The transportation industry closed the day up 1.1%. Ultrapetrol Bahamas ( ULTR), DS Torm ( TRMD), PHI Incorporated ( PHII), and Tam ( TAM) were all decliners today within the transportation industry with P.A.M. Transportation ( PTSI) being today's featured transportation loser. P.A.M. Transportation fell 39 cents (-3.9%) to $9.62 on heavy volume. Throughout the day, 14,301 shares of P.A.M. Transportation exchanged hands as compared to its average daily volume of 6,700 shares. P.A.M. Transportation Services, Inc., a truckload dry van carrier, engages in transporting general commodities. P.A.M. Transportation has a market cap of $89.6 million and is part of the services sector. Shares are down 10.8% year to date as of the close of trading on Wednesday. TheStreet Ratings rates P.A.M. Transportation as a hold. Among the primary strengths of the company is its revenue growth. At the same time, however, we also find weaknesses including unimpressive growth in net income, poor profit margins and a generally disappointing performance in the stock itself.