Comcast Slips as KeyBanc Cuts to Underweight on Broadband Share Losses; AT&T and Verizon Hold Steady

KeyBanc’s bearish turn on broadband is pulling Comcast Corporation (NASDAQ:CMCSA | CMCSA Price Prediction) lower, while the fiber carriers winning its customers barely shift. Comcast stock is down 2% to $21.66 as trading gets underway. That leaves Comcast stock down 20% year to date (YTD).

AT&T (NYSE:T) stock is at $25.39, down 0.2%, as the market shrugs off a thesis that frames the carrier as one of the rivals pulling broadband customers from Comcast. Similarly, Verizon Communications (NYSE:VZ) stock is down 0.2% to $47.24, holding steady as another fiber and fixed wireless competitor at the center of the downgrade.

The Communication Services Select Sector SPDR ETF (NYSEARCA:XLC) is down 0.1%, a small dip for a fund that held Comcast at a 4.7% weight as of June 30. Moreover, the SPDR S&P 500 ETF Trust (NYSEARCA:SPY) is up 0.3%, leaving Comcast stock falling against a rising broad market.

KeyBanc Cuts Comcast to Underweight

KeyBanc analyst Brandon Nispel downgraded Comcast to Underweight from Sector Weight with a price target of $18, citing broadband market share losses to fiber and fixed wireless competitors. Broadband is the larger of Comcast’s businesses, so erosion there hits the core of the investment case. Citi analyst Michael Rollins also cut his price target. He maintained a Buy rating, pointing to a more competitive broadband market and telecom fiber offers that have grown more promotional.

Rollins added that Comcast’s broadband share would take longer to reach equilibrium than he previously expected, and the Q2 2026 results show the pressure. Comcast reported 167,000 domestic broadband net losses in the quarter, while revenue from that business fell 5.5% to $6.28 billion. On the earnings call, Comcast Chief Financial Officer Jason Armstrong stated, “The broadband market remains highly competitive. Fiber continues to expand, fixed wireless remains aggressive, satellite is emerging as another alternative, and convergence-based promotional activity remains elevated across the industry.”

Fiber Rivals Hold Steady as Comcast Slides

AT&T and Verizon shares holding near their prior levels mark the selloff as a Comcast problem, concentrated in the one name whose largest business sits on the losing side of the broadband shift. Both carriers are on the winning side of the share movement Nispel described, and the same thesis that weighs on Comcast reinforces their fiber and fixed wireless pitch. That small dip in the sector fund fits the read, since Comcast is one of many holdings inside it.

Wall Street view on Comcast was already lukewarm before KeyBanc’s move, with 16 Hold ratings against 7 Buy ratings. KeyBanc’s Underweight joins a small bearish camp that includes 2 Sell ratings and 1 Strong Sell rating.

Comcast’s Spin-Off Anchors the Bull Case

The case against Comcast rests on broadband being the larger business while fiber competitors keep taking share in it, the concern behind both analyst actions. Comcast’s buyback is also paused through the separation process, removing one source of demand for Comcast stock while broadband losses continue. That combination leaves Comcast leaning on its media assets and wireless growth to offset a shrinking core.

Comcast’s supporters point to cash generation and the pending spin-off of NBCUniversal and Sky, which holders argue could value the separate pieces above what the combined company gets now. Comcast stock carries a low multiple. At a price-to-earnings (P/E) ratio of 7x and a forward P/E ratio of 6x, it trades cheaply for a business that still throws off substantial cash. Income adds some support, with Comcast paying an annual dividend of $1.32 per share ahead of its next ex-dividend date on October 7.

What to Watch Next

Comcast’s management has stated it expects modest improvement starting in Q3 2026, so the next broadband count gives the downgrade thesis a direct test. Any update on the NBCUniversal and Sky separation timeline is also worth watching, since that deal carries much of the bull case for Comcast.

Holders of CMCSA stock should keep positions moderate while the broadband question stays open. Comcast’s low multiple and dividend offer some cushion, but the share losses behind KeyBanc’s call could keep weighing on the stock until fiber pressure eases.

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