Telephone and Data Systems (TDS) Stock Analysis & Winston Score

Telephone and Data Systems (TDS) is a telecom holding company based in Chicago that provides phone, internet, and cable TV services to customers across the United States. Its two main businesses are TDS Telecom, which serves smaller and rural communities with broadband and landline services, and a majority stake in US Cellular, one of the largest regional wireless carriers in the country. TDS focuses on markets that larger carriers like Verizon and AT&T often underserve. TDS earns money through monthly service subscriptions from residential and business customers, plus equipment sales like smartphones and modems. It operates entirely in the United States and generates roughly $5 billion in annual revenue across both segments. The company's negative operating margin reflects heavy spending on fiber network upgrades, which are meant to drive future broadband growth — but rising debt levels and intense competition from larger national carriers and cable companies remain the central risks to its financial health.