Charter shares plunged more than 8% Tuesday after its Chief Financial Officer Jessica Fischer said the company could lose broadband subscribers in the fourth quarter. Charter competitor Comcast 's stock also slipped more than 3% in midday trading. Comcast reported it lost 18,000 broadband subscribers in the third quarter. Even so, Fischer believes Charter will return to subscriber growth, citing a potential rebound in the housing market. Adding "value back into video," referring to Disney and Charter's deal to include Disney+ in some Spectrum plans, will also drive competitiveness for Charter, Fischer added.

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Persons: Jessica Fischer, Fischer Organizations: Comcast, UBS Global Media, Communications Conference, Disney, Charter, CNBC, CNBC PRO