Apple designs, manufactures and markets smartphones, personal computers, tablets, wearables and accessories, and sells a variety of related services. The company's products include: iPhone; Mac; iPad; and wearables, home and accessories, which includes AirPods?, Apple TV?, Apple Watch?, Beats? products, HomePod?, iPod touch? and other Apple-branded and third-party accessories. The company's services include: digital content stores and streaming services; AppleCare, which includes AppleCare + (AC+) and the AppleCare Protection Plan; iCloud, which is the company's cloud service; licensing; and other services, which include Apple Arcade?, Apple Card?, Apple News+, and Apple Pay, a cashless payment service.

Bank of America is a bank and a financial holding company. Through its subsidiaries, the company provides a range of banking, investing, asset management and other financial and risk management products and services. The company's segments include: Consumer Banking, which provides credit, banking and investment products and services; Global Wealth & Investment Management, which provides investment management, brokerage, banking and retirement products; Global Banking, which provides lending-related products and services, integrated working capital management and treasury solutions, and underwriting and advisory services; and Global Markets, which provides sales and trading services and research services.

DISH Network is a holding company. Through its subsidiaries, the company operates two business segments: Pay-TV and Wireless. The company provides pay-TV services under: the DISH? brand, which consists of, among other things, Federal Communications Commission licenses authorizing the company to use direct broadcast satellite and Fixed Satellite Service spectrum, the company's owned and leased satellites, and certain other assets utilized in the company's operations; and the Sling? brand, which consists of, among other things, live-linear streaming over-the-top Internet-based domestic, international and Latino video programming services. In addition, the company invests to acquire certain wireless spectrum licenses and related assets.

Pfizer is a research-based biopharmaceutical company. The company is engaged in discovering, developing, manufacturing and distributing of healthcare products, including medicines and vaccines. The company manages its commercial operations through three businesses: Pfizer Biopharmaceuticals Group, which includes Oncology, Inflammation and Immunology, Rare Disease, Hospital, Vaccines and Internal Medicine business units, as well as a hospital business unit; Upjohn, which includes the company's solid oral dose brands such as Lyrica, Lipitor, Norvasc, Celebrex, Viagra, and certain generic medicines; and Consumer Healthcare, which is an over-the-counter medicines business.