ZTO zto express (cayman) inc. american depositary shares, each representing one class a ordinary share. NYSE Trucking Freight/Courier Services WERN werner enterprises, inc. NASDAQ Trucking Freight/Courier Services VLRS controladora vuela compania de aviacion, s.a.b. de c.v. american depositary shares, each representing ten (10) ordinary participation certificates NYSE Air Freight/Delivery Services USDP usd partners lp NYSE Railroads UPS united parcel service, inc. NYSE Trucking Freight/Courier Services UNP union pacific corporation NYSE Railroads ULH universal logistics holdings, inc. NASDAQ Trucking Freight/Courier Services UAL united airlines holdings, inc. NYSE Air Freight/Delivery Services TOPS top ships, inc. NASDAQ Marine Transportation TNP tsakos energy navigation ltd common shares NYSE Marine Transportation TK teekay corporation ltd. NYSE Marine Transportation STNG scorpio tankers inc. common shares NYSE Marine Transportation SNDR schneider national, inc. NYSE Trucking Freight/Courier Services SKYW skywest, inc. NASDAQ Air Freight/Delivery Services SHIP seanergy maritime holdings corp NASDAQ Marine Transportation SFL sfl corporation ltd NYSE Marine Transportation SBLK star bulk carriers corp. - common shares NASDAQ Marine Transportation SB safe bulkers, inc ($0.001 par value) NYSE Marine Transportation SAVE spirit airlines, inc. NASDAQ Air Freight/Delivery Services SAIA saia, inc. NASDAQ Trucking Freight/Courier Services RYAAY ryanair holdings plc - american depositary shares, each representing five ordinary shares NASDAQ Air Freight/Delivery Services RRTS roadrunner trans sys inc NYSE Oil Refining/Marketing RLGT radiant logistics, inc. AMEX Oil Refining/Marketing PXS pyxis tankers inc. NASDAQ Marine Transportation PTSI p.a.m. transportation services, inc. NASDAQ Trucking Freight/Courier Services PANL pangaea logistics solutions ltd. NASDAQ Marine Transportation PAC grupo aeroportuario del pacifico, s.a. b. de c.v. grupo aeroportuario del pacifico, s.a. de c.v. (each representing 10 series b shares) NYSE Aerospace OSG overseas shipholding group, inc. class a NYSE Marine Transportation OMAB grupo aeroportuario del centro norte s.a.b. de c.v. - american depositary shares each representing 8 series b shares NASDAQ Aerospace ODFL old dominion freight line, inc. NASDAQ Trucking Freight/Courier Services NVGS navigator holdings ltd. ordinary shares (marshall islands) NYSE Marine Transportation NSC norfolk southern corporation NYSE Railroads NMM navios maritime partners lp common units representing limited partner interests NYSE Marine Transportation MRTN marten transport, ltd. NASDAQ Trucking Freight/Courier Services LUV southwest airlines company NYSE Air Freight/Delivery Services LTM latam airlines group s.a. american depositary shares (each representing two thousand (2,000) shares of) NYSE Air Freight/Delivery Services LSTR landstar system, inc. NASDAQ Trucking Freight/Courier Services LPG dorian lpg ltd. NYSE Marine Transportation KNX knight-swift transportation holdings inc. NYSE Trucking Freight/Courier Services JBLU jetblue airways corporation NASDAQ Air Freight/Delivery Services JBHT j.b. hunt transport services, inc. NASDAQ Trucking Freight/Courier Services HUBG hub group, inc. - class a NASDAQ Oil Refining/Marketing HTLD heartland express, inc. NASDAQ Trucking Freight/Courier Services HA hawaiian holdings, inc. NASDAQ Air Freight/Delivery Services GSL global ship lease inc new class a common shares NYSE Marine Transportation GOL gol linhas aereas inteligentes s.a. sponsored adr representing 2 pfd shares NYSE Air Freight/Delivery Services GNK genco shipping & trading limited ordinary shares new (marshall islands) NYSE Marine Transportation GLBS globus maritime limited NASDAQ Marine Transportation GASS stealthgas, inc. - common stock NASDAQ Marine Transportation FWRD forward air corporation NASDAQ Oil Refining/Marketing