Comcast Trades at Just 8 Times Earnings After Losing 711,000 Broadband Subs Last Year

Comcast’s core broadband business lost more than 700,000 domestic customers as fiber and fixed wireless competition intensified, with attrition accelerating to 181,000 in Q4 from 104,000 in Q3. The company generated a record $19 billion in free cash flow in 2025 and returned $11.7 billion via buybacks and dividends, but it is now sacrificing EBITDA margins through promotions and free wireless lines to stabilize subscriber trends. Wireless and theme parks are helping offset the decline, but the market remains skeptical at just 8x forward earnings and a 4.7% dividend yield.

Analysis

CMCSA is morphing from a cash-compounding incumbent into a utility-like defense story, but the market is still pricing it as if the downside is contained. The second-order issue is not just broadband subscriber loss; it is that management is now buying stability with promotions that dilute ARPU and raise future support costs, which means the apparent cash flow resilience can decay faster than headline FCF suggests. That makes the current multiple vulnerable if the market concludes the free-cash-flow base is being “managed” rather than organically defended.

The likely winners are the fixed wireless incumbents and fiber overbuilders that can keep taking share without matching Comcast’s promo intensity. VZ is the cleaner beneficiary on this tape because its network monetizes the same displacement trend while preserving brand perception as a premium carrier; TMUS is more exposed to margin dilution because FWA growth is increasingly part of its own competitive defense against wireline, so it may not be as clean a relative long despite the headline share gains. Downstream, cable-equipment suppliers and ad-tech tied to broadband household growth get a slower demand backdrop, while theme-park strength is helpful but too episodic to offset secular erosion in the core.

The key catalyst is not the next quarter but the 2H26 read-through on conversion of “free” wireless lines into paid accounts. That converts this from a narrative of temporary customer retention into a test of whether Comcast can build a second durable profit pool; if conversion is weak, the market will likely start capitalizing broadband cash flows at a lower terminal multiple within months. Conversely, a solid conversion rate could trigger a rerating because it would validate that share loss in connectivity can be traded for a higher-value mobile bundle with acceptable lifetime value.

The contrarian view is that the market may be over-discounting the stock if the current mix shift simply extends customer lifetime value rather than destroying it. At 8x forward earnings, a low-growth, high-yield cash generator with a monetizable mobile attach rate and asset-backed parks business can still work if churn stabilizes. The mistake would be assuming broadband must return to growth; the bull case only needs the decline rate to decelerate enough that the wireless attach and parks EBITDA cover the margin give-back.

Key Decisions for Investors

• Short CMCSA on rallies into the next 1-2 quarters; risk/reward is favorable if broadband losses keep accelerating and promo-driven margin pressure shows up before wireless monetization is proven.
• Pair trade: long VZ / short CMCSA for the next 3-6 months. VZ benefits from fixed wireless share capture with cleaner monetization, while CMCSA is paying to defend a shrinking base.
• Avoid chasing TMUS as the “winner” here unless evidence shows FWA growth is expanding margins; its wireless share gains are partly defensive and could be less accretive than the market assumes.
• For patient capital, consider selling CMCSA upside calls against a long equity position into strength; the stock screens cheap, but the path to rerating likely requires a 2H26 catalyst that is too far away to pay for near-term convexity.
• Watch 2H26 paid-conversion data as the hard catalyst: if conversion is weak, add to shorts/underweights; if conversion is strong, cover shorts quickly because the market will likely re-rate the stock within days to weeks.