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Comcast headquarters building, the largest cable and broadband provider in the United States
Photo: 24/7 Wall St.

Comcast Stock Slides 2% on KeyBanc Underweight Downgrade

Yahoo Finance / 24…7 Wall St.2 min read5 sources

Why is Comcast stock down today?

Comcast (CMCSA) stock slid 2% on Friday after KeyBanc downgraded it to Underweight with an $18 price target, citing accelerating broadband subscriber losses and a structural deterioration in its legacy cable model.

Key numbers

CMCSA Price (Sept 25)$21.66-2.0% on the day; near 52-week low of $21.28
KeyBanc Price Target$18.00implies more than 18% further downside from current price
Q2 2026 Broadband Net Losses167,000 subscribers+34,000 worse than Q2 2025
Q2 2026 Broadband Revenue$6.28B-5.5% vs. a year earlier
KeyBanc Full-Year 2026 Broadband Loss Estimate558,000 subscribers76,000 worse than Wall Street consensus of 482,000
CMCSA Forward P/E6.2xvs. approximately 13.7x telecom sector median

What happened

Comcast (CMCSA) stock slid 2% on Friday after KeyBanc downgraded it to Underweight with an $18 price target, citing accelerating broadband subscriber losses and a structural deterioration in its legacy cable model. KeyBanc analyst Brandon Nispel warned that 'every key metric is likely worse than expected,' forecasting Comcast will lose 558,000 broadband subscribers in all of 2026 and 665,000 in 2027 — both figures far worse than Wall Street's consensus estimates. The shares fell to their lowest level since October 2013, approaching the 52-week low of $21.28, as rivals like T-Mobile win customers by offering gigabit-speed broadband for around $30 a month — a price Comcast has called unsustainable but declined to match. Citigroup also cut its price target to $27.50 from $30 the same day, though it kept a Buy rating.

Why it matters

Comcast's broadband business — which generates more than $6 billion in revenue every quarter — is the company's primary growth engine, and it has now shed subscribers for more than four straight quarters. Fixed wireless and fiber rivals are winning customers by dramatically undercutting Comcast on price, and because only about 55% of Comcast's service area currently faces fiber competition, that pressure can still grow further. With share buybacks already halted and a planned NBCUniversal spinoff on the horizon, investors are left holding a cable company whose core product is shrinking and whose stock is trading near a 13-year low.

Who this affects

Marketbearish
Medium impact
Cable stocks under pressure; AT&T and Verizon flat.
Companybearish
High impact
CMCSA near 13-year lows; share buybacks halted since July.
Competitorsbullish
Medium impact
T-Mobile and fiber rivals gain as Comcast sheds subscribers.
Industrybearish
High impact
Legacy cable model faces structural threat from fixed wireless, fiber.

Comcast vs Charter Communications, T-Mobile, Optimum

ComcastCMCSA:NASDAQ$77.5B-2.0%-8%6.2x
Charter CommunicationsCHTR:NASDAQ$18.8B-2.5%-17.1%3.0x
T-MobileTMUS:NASDAQ$178B+0.7%-12.6%13.2x
Optimum (fmr. Altice USA)OPTU:NYSE$0.4B-4.8%——

As of 2026-09-25

How we got here

  1. Comcast halts share buybacks ahead of planned NBCUniversal spinoff.

  2. Q2 2026 earnings: 167,000 broadband subscribers lost; revenue down 5.5%.

  3. Citigroup cuts CMCSA target to $27.50; Moffett Nathanson trims to $52.

  4. KeyBanc downgrades to Underweight with $18 target; stock hits 13-year low.

What to watch

  • Q3 2026 earnings: will broadband losses reach KeyBanc's -140,000 estimate?Q4 2026
  • NBCUniversal spinoff: will separation unlock value for Comcast shareholders?2027-06-30
  • Will Comcast cut broadband prices to match rivals' ~$30/month gigabit offers?Q4 2026

Educational content only. Not investment advice.

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