AD vs FOUR Comparison

Array Digital Infrastructure, formerly US Cellular, sold its regional wireless operations serving about 4.4 million customers to T-Mobile in August 2025. The firm has agreed to sell most of its remaining spectrum licenses; however, it will still retain rights to C-band spectrum in several locations after these deals are closed. Array also owns a 5.5% stake in Verizon Wireless' Los Angeles operations, as well as other smaller wireless partnership interests in Oklahoma and upstate New York. The firm still operates a portfolio of about 4,400 wireless towers. Parent TDS has proposed to acquire the portion of Array that it doesn't already own in an all-stock transaction.

Shift4 Payments Inc is an independent provider of software and payment processing solutions in the U.S., expanding internationally. Its payments platform offers integrated products and services across in-store, online, mobile and tablet-based channels, including end-to-end payment processing, merchant acquiring services, a proprietary omni-channel gateway, eCommerce capabilities, and reporting tools. The company distributes its services through internal sales teams and partners, including independent software vendors (ISVs) and value-added resellers (VARs). Revenue is predominantly recurring, derived mainly from processing fees and subscription revenue from POS software, business intelligence tools and other technology solutions. The company derives maximum revenue from the United States.