AD vs ACMR 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.

ACM Research Inc supplies capital equipment developed for the semiconductor industry. The company focuses on developing differentiated process solutions that enable effective particle removal, uniform material deposition, and reliable process control for the fabricators of integrated circuits. Its product offerings include wet-cleaning, plating, furnace, PECVD, track, and other front-end processing equipment. Additionally, it develops, manufactures, and sells a range of packaging equipment to wafer assembly and packaging customers. Geographically, the company generates maximum revenue from its customers in Mainland China, and the rest from other regions.