US cable MVNOs look to improve multiline and premium traction as mobile share grows

Core Insights - The US home broadband market is facing challenges for cable operators due to increasing net broadband subscriber losses driven by competition from fiber and fixed wireless access [1] - Mobile services are becoming essential for cable companies, with Comcast and Charter reporting significant net mobile line additions in Q3 2025 [2] Group 1: Comcast's Performance - Comcast achieved its best quarterly mobile line additions in Q3 2025, with 414,000 net mobile line adds, bringing its total to 8.94 million mobile lines and over 14% penetration of its broadband base [3] - A significant portion of Comcast's new subscribers came from a free-line bundling strategy, which contributed to the increase in net additions [3] - Comcast is focusing on converting free lines into paying customers to capture convergence revenue growth, especially as promotional offers expire in H2 2026 [4] Group 2: Charter's Performance - Charter experienced year-over-year declines in total revenue (-0.9%), residential revenue (-1.1%), and adjusted EBITDA (-1.5%) in Q3 2025, despite a slight increase in broadband revenue by 1.7% [6] - Mobile services are highlighted as a growth engine for Charter, providing a positive aspect amidst overall revenue challenges [6]