SUM vs ALK Comparison

Summit Materials Inc is engaged in the production and sale of aggregates, cement, ready-mix concrete, asphalt paving mix and concrete products and owns and operates quarries, sand and gravel pits, two cement plants, cement distribution terminals, ready-mix concrete plants, asphalt plants and landfill sites. It is also engaged in paving and related services. The Company's three operating and reporting segments are the West, East and Cement segments. It operates in 21 U.S. states and in British Columbia, Canada and has assets in 21 U.S. states and in British Columbia, Canada through its platform.

Alaska Air Group Inc operates two airlines, Alaska and Horizon in three operating segments. The Mainline segment includes scheduled air transportation on Alaska's Boeing and Airbus jet aircraft for passengers and cargo throughout the U.S., and in parts of Mexico, and Costa Rica. The Regional segment includes Horizon's and other third-party carriers' scheduled air transportation for passengers across a shorter distance network within the U.S. and Canada under capacity purchase agreements (CPA). The Horizon segment includes the capacity sold to Alaska under a CPA. It earns revenues from Passenger tickets, including ticket breakage and net of taxes and fees, Passenger ancillary and Mileage Plan passenger revenue.