Alaska Air Group operates two airlines, Alaska Airlines, Inc. (Alaska) and Horizon Air Industries, Inc. (Horizon). The company's operation also includes McGee Air Services, an aviation services provider. The company has three segments: Mainline, which includes scheduled air transportation on Alaska's Boeing or Airbus jet aircraft for passengers and cargo throughout the United States., and in parts of Canada, Mexico, and Costa Rica; Regional, which includes Horizon's and other third-party carriers' scheduled air transportation for passengers across a shorter distance network within the United States under capacity purchase agreements (CPA); and Horizon, which includes the capacity sold to Alaska under CPA.

Align Technology is a medical device company engaged in the design, manufacture and marketing of Invisalign? clear aligners and iTero? intraoral scanners and services for orthodontics, restorative and aesthetic dentistry. The company's segments are: Clear Aligner, which includes the Invisalign System, a method for treating malocclusion based on a proprietary computer-simulated virtual treatment plan and a series of doctor-prescribed, custom manufactured, clear plastic, removable aligners; and Scanners and Services, which includes Intraoral scanning that enables the dental practitioner to create a 3D image of the patient's teeth (digital scan) using a handheld intraoral scanner.

Expedia Group is an online travel company. The company's portfolio of brands includes: Expedia.com?, an online travel brand; Hotels.com?, a global lodging company operating websites with its Hotels.com? Rewards loyalty program; Vrbo?, a global online marketplace with a focus on providing lodging options for families; Egencia?, a corporate travel management company; Hotwire?, an online travel website providing spontaneous travel through its Hot Rate? deals; trivago?, an online hotel metasearch platform; and SilverRail Technologies, Inc., provider of a global rail retail and distribution platform connecting rail carriers and suppliers to both online and offline travel distributors.

Freeport-McMoRan is a holding company. Through its subsidiaries, the company is a mining company. The company operates assets with proven and probable reserves of copper, gold and molybdenum, and the company is a publicly traded copper producer. The company's portfolio of assets includes the Grasberg minerals district in Indonesia, copper and gold deposits; and mining operations in North America and South America, including the Morenci minerals district in Arizona and the Cerro Verde operation in Peru. The company has organized its mining operations into four primary divisions: North America copper mines, South America mining, Indonesia mining and Molybdenum mines.

General Dynamics is an aerospace and defense company. The company has five operating segments: Aerospace, which provides a family of Gulfstream aircraft and services for business aircraft produced by Gulfstream and other original equipment manufacturers; Combat Systems, which provides combat vehicles, weapons systems and munitions; Information Technology, which provides information technology (IT) services, IT infrastructure modernization and professional services; Mission Systems, which provides mission-critical products and systems; and Marine Systems, which designs and builds nuclear-powered submarines, surface combatants, and auxiliary and combat-logistics ships.

Humana is a holding company. Through its subsidiaries, the company is a health and well-being company. The company manages its business with three segments: Retail, which consists of products sold on a retail basis to individuals including medical and supplemental benefit plans, such as Medicare and state-based Medicaid Contracts; Group and Specialty, which consists of employer group commercial fully-insured medical and specialty health insurance benefits, including dental, vision and life insurance benefits, as well as administrative services only; and Healthcare Services, which includes pharmacy solutions, provider services, clinical care services, and predictive modeling and informatics services

Illinois Tool Works manufactures a range of industrial products and equipment. Automotive OEM segment produces components and fasteners for automotive-related applications. Food Equipment segment is engaged in commercial food equipment. Test and Measurement and Electronics segment produces equipment for testing and measuring of materials and structures. Welding segment produces arc welding equipment, consumables and accessories. Polymers and Fluids segment produces adhesives, sealants, lubrication and cutting fluids for auto aftermarket maintenance. Construction Products segment supplies fastening systems and solutions. Specialty Products segment is focused on patent protection.

Iron Mountain is a holding company. Through its subsidiaries, the company stores physical records and data backup media, providing information management solutions, and providing data center space for colocation and hyperscale deployments. The company's segments are: Global Records and Information Management Business, which provides records management, data management, information governance and digital solutions, secure shredding, and consumer storage; Global Data Center Business, which provides data center facilities; and Corporate and Other Business, which provides entertainment and media that helps industry clients store, safeguard and deliver physical media of various types.

McKesson provides pharmaceuticals and medical supplies and services to its customers. The company's segments include: U.S. Pharmaceutical and Specialty Solutions, which provides distribution and logistics services for branded, generic, specialty, biosimilar and over-the-counter pharmaceutical drugs and other healthcare-related products to customers; European Pharmaceutical Solutions, which provides distribution and services to wholesale, institutional and retail customers in European countries where it owns, partners or franchises with retail pharmacies; and Medical-Surgical Solutions, which delivers medical-supply distribution, logistics, biomedical and other services to healthcare providers.

Mettler-Toledo International is a supplier of precision instruments and services. The company manufactures weighing instruments for use in laboratory, industrial, packaging, logistics, and food retailing applications. The company also manufactures several related analytical instruments and provides automated chemistry solutions used in drug and chemical compound discovery and development. In addition, the company manufactures metal detection and other end-of-line inspection systems used in production and packaging and provides solutions for use in certain process analytics applications. The company has five segments: United States Operations, Swiss Operations, Western European Operations, Chinese Operations, and Other.

Norfolk Southern is a holding company. Through its subsidiaries, the company is engaged in the rail transportation of raw materials, intermediate products, and finished goods primarily in the Southeast, East, and Midwest and, via interchange with rail carriers, to and from the rest of the United States. The company also transports overseas freight through several Atlantic and Gulf Coast ports. The company provides intermodal network in the eastern half of the United States. The company's railroad operates in several states and the District of Columbia. The company's system reaches manufacturing plants, electric generating facilities, mines, distribution centers, transload facilities, and other businesses in its service area.

Omnicom Group is a holding company, engaged in providing advertising, marketing and corporate communications services. The company's networks and agencies provide a range of services in the following fundamental disciplines: advertising, customer relationship management, public relations and healthcare. The company's Service offerings include, among others, advertising, branding, content marketing, corporate social responsibility consulting, crisis communications, custom publishing, data analytics, database management, digital/direct marketing, digital transformation, entertainment marketing, experiential marketing, field marketing, financial/corporate business-to-business advertising, and imaging.

Texas Instruments designs and makes semiconductors that it sells to electronics designers and manufacturers. The company has two reportable segments: Analog and Embedded Processing. The company's analog semiconductors change signals, such as sound, temperature, pressure or images to a stream of digital data. The company's analog segment primary product lines includes: power, signal chain, and high volume. The company's embedded processors are designed to handle specific tasks and can be optimized for various combinations of performance, power and cost, depending on the application. The company's embedded processing segment primary product lines includes: connected microcontrollers and processors.

Thermo Fisher Scientific is engaged in serving science. The company's segments include: Life Sciences Solutions, which provides reagents, instruments and consumables used in biological and medical research, discovery and production of new drugs and vaccines as well as diagnosis of disease; Analytical Instruments, which provides instruments, consumables, software and services that are used for a range of applications in the laboratory, on the production line and in the field; and Specialty Diagnostics, which provides diagnostic test kits, reagents, culture media, instruments and associated products for customers in healthcare, clinical, pharmaceutical, industrial, and food safety laboratories.

Union Pacific, through its operating subsidiary, Union Pacific Railroad Company, is a Class I railroad operating in the United States. The company's network included route miles, linking Pacific Coast and Gulf Coast ports with the Midwest and eastern United States. gateways and providing several corridors to key Mexican gateways. The company serves the western two-thirds of the country and maintains coordinated schedules with other rail carriers for the handling of freight to and from the Atlantic Coast, the Pacific Coast, the Southeast, the Southwest, Canada, and Mexico. The company's business mix includes agricultural products, energy, industrial, and premium.

Universal Health Services owns and operates, through its subsidiaries, acute care hospitals and outpatient facilities and behavioral health care facilities. The company owns and/or operates inpatient facilities and outpatient and other facilities located in several states including, Washington, D.C., the United Kingdom, and Puerto Rico. Services provided by the company's hospitals include general and specialty surgery, internal medicine, obstetrics, emergency room care, radiology, oncology, diagnostic care, coronary care, pediatric services, pharmacy services and/or behavioral health services. The company's reportable operating segments consist of acute care hospital services and behavioral health care services.

Visa is engaged in digital payments. The company facilitates payments between consumers and businesses. The company is focused on its proprietary network, VisaNet, to provide products and services. The company provides a portfolio of business payment solutions, including small business, corporate (travel) cards, purchasing cards, virtual cards/digital credentials, non-card cross-border business-to-business payment options and disbursement accounts, covering various main industry segments around the world. The company also provides several capabilities and services, including fraud prevention and security, processing, loyalty, merchant and digital solutions, consulting and data solutions.

Vulcan Materials is a supplier of construction aggregates and a producer of asphalt mix and ready-mixed concrete. The company has four segments: Aggregates, which produces and sells aggregates (crushed stone, sand and gravel, sand, and other aggregates) and related products and services; Asphalt, which produces and sells asphalt mix in Alabama, Arizona, California, New Mexico, Tennessee and Texas, and includes asphalt construction paving in Alabama, Tennessee and Texas; Concrete, which produces and sells ready-mixed concrete; and Calcium, which consists of a Florida facility that mines, produces and sells calcium products.

Walgreens Boots Alliance is a holding company. Through its subsidiaries, the company is engaged in retail and wholesale pharmacy. The company's operations are organized into three divisions, which are also its reportable segments: Retail Pharmacy USA; Retail Pharmacy International; and Pharmaceutical Wholesale. The Retail Pharmacy USA division has pharmacy-led health and beauty retail offerings. The Retail Pharmacy International division has pharmacy-led health and beauty retail businesses. The Pharmaceutical Wholesale division, which mainly operates under the Alliance Healthcare brand, supplies medicines, other healthcare products and related services to pharmacies, doctors, health centers and hospitals.