Comcast Stock Analysis: What a 7x P/E Leaves Out
Comcast trades near 7 times trailing earnings, but broadband losses, cash-flow quality, debt and its planned spin-off matter more than the headline multiple.
Comcast Looks Cheap at 7 Times Earnings. What Could Change That?
Comcast's stock price and reported earnings make it easy to see why people get excited. At $23.22 on October 30, 2026, the shares trade at a little over seven times trailing GAAP earnings. They're also below reported book value and carry a dividend yield of roughly 5.7%. Those headline numbers are eye-catching - but they don't answer the questions that actually decide whether this multiple makes sense.
The biggest unknown is whether the broadband business can keep supporting earnings as customers leave and revenue slides. After that, you have to dig into the quality of recent cash flow, what "book value" really means for a company with a lot of goodwill and other intangibles, and how Comcast plans to allocate debt when the planned NBCUniversal and Sky separation happens. Any one of those can change how you should read the "cheap" multiple.
This analysis uses Comcast's Q3 2026 10-Q and earnings release (both filed October 22, 2026) and its FY2025 10-K. The share price is from October 30, and the balance-sheet figures are as of September 30. The calculations below come from those filings, not from company-provided valuation metrics. The point isn't to call the stock a bargain or a trap. It's to lay out what would need to stay true for the discount to hold up.
Why does Comcast look cheap?
On the surface, Comcast's valuation seems to stack a few positives: a low earnings multiple, a share price below book value, a meaningful dividend, and strong reported free cash flow. Those are all good starting points. They're just not the end of the story - because each one depends on what happens next.
Reconstructing the trailing P/E
Comcast reported diluted GAAP earnings per share of $5.39 for 2025 and $4.78 for the first nine months of that year. If you subtract those, you get an approximate fourth-quarter 2025 EPS of $0.61. Add the $2.55 per share reported for the first nine months of 2026, and the resulting trailing EPS is about $3.16.
At $23.22 per share, that works out to a trailing P/E of roughly 7.3. The math is straightforward, but it's also combining a full prior-year result with nine months of a newer year. It's backward-looking, and it assumes those earnings are a reasonable guide for what follows.
You also want to sanity-check the result against the FY2025 10-K. Comcast's first nine months of 2025 included a $7.06 billion investment-related gain, or $1.89 per share. That gain falls outside the specific trailing period used here. There could still be unusual items in the fourth quarter of 2025. If you're going to trust the multiple, you should review the annual filing's earnings reconciliation and see what actually drove that quarter.
The other headline numbers
The 10-Q reported about 3.55 billion shares outstanding on October 15, 2026. Multiplying by the October 30 closing price implies an equity market value of about $82 billion. Shareholders' equity was $92.5 billion at September 30, putting the market value at around 0.9 times reported book value.
The annual dividend was $1.32 per share, or an indicated yield of about 5.7% at $23.22. Comcast also generated $12.7 billion in free cash flow during the first nine months of 2026 and paid $3.6 billion in dividends during that same period.
All of that describes today's snapshot. It doesn't automatically mean the setup will last. A low P/E can reflect expectations of declining earnings. A high yield can reflect uncertainty about dividend growth. And book value can be a weak stand-in for "what the business is worth" when much of the balance sheet is tied up in acquired intangible assets.
Key takeaways
- The roughly 7.3 P/E is built from reported EPS, not a promise that earnings will normalize at that level.
- The dividend looks supported by recent free cash flow, but timing and future operating performance still matter.
- The discount to book value should be evaluated based on what Comcast's assets actually are (and how much is intangible).
Is Comcast's broadband business still stable?
Broadband is the main operating test for Comcast, since it drives much of the company's connectivity earnings. The question isn't just whether Comcast is losing customers. It's whether those customer losses - and the revenue pressure that comes with them - are sticking around long enough to weaken the earnings base behind the low multiple.
Customer losses and falling revenue
Comcast reported 28.34 million domestic residential broadband customers at the end of Q3 2026, down from 28.90 million a year earlier. That's a drop of about 554,000 customers. In the quarter, it lost 144,000 customers versus 91,000 in Q3 2025.
Domestic broadband revenue fell 4.7% year over year to $6.24 billion. Comcast attributed the decline to fewer customers and lower average rates. That matters because the mix can change outcomes: customer declines sometimes get partially offset by higher revenue per account, and lower pricing can help retention and bundle economics. Here, both levers moved the wrong way.
Residential Connectivity & Platforms adjusted EBITDA fell 5.8% to $6.11 billion, and the margin dropped from 36.8% to 35.9%. Management said the pressure was partly due to investment in its go-to-market strategy. That may be true - but you should treat it as something to verify over time, not as a conclusion. If the company is investing to improve acquisition and retention, you'd eventually expect to see better customer trends, pricing stability, or margins.
What could offset the decline?
There are some offsetting areas. Wireless reached 10.56 million lines, including 368,000 net additions in Q3, and wireless service revenue increased 14.7%. Business Services Connectivity revenue rose 2.7%.
Those are relevant, but growth rates by themselves don't tell you whether wireless and business services can replace broadband revenue and earnings at scale.
If you want a practical quarterly checklist, compare the same indicators every quarter:
- Domestic residential broadband customer count and net losses.
- Broadband revenue and any disclosed indication of revenue per customer.
- Connectivity & Platforms EBITDA and margin.
- Wireless additions and service revenue growth.
- Business Services Connectivity revenue.
If broadband losses keep worsening for another two or three quarters while revenue per customer continues to fall, the "stable" argument gets much harder to defend. Check the customer metrics table in each earnings release, segment results in Item 2 of each 10-Q, and Comcast's published trend schedules. The goal is to look for a pattern - not to overreact to a single quarter.
How reliable are Comcast's earnings and cash flow?
A low P/E only matters if the earnings denominator reflects something repeatable. Cash flow helps, but it also needs context. Comcast's filings show why it's risky to treat one reported measure as the whole story.
Separate recurring performance from unusual items
Comcast reported $17.8 billion of net income attributable to the company for the first nine months of 2025, compared with $9.1 billion for the same period in 2026. The comparison is skewed by the $7.06 billion investment-related gain in 2025. Adjusted EPS, which removes that and other items, fell from $3.46 to $2.90 over the same periods.
Adjusted metrics can help isolate operating trends, but they're still defined by management. A disciplined approach is to compare GAAP results to the company's reconciliation, identify what was excluded, and then ask whether those excluded items keep showing up in practice. For the P/E specifically, review Q4 2025 in the 10-K as well - one-off items in that quarter can affect the trailing figure even if the big investment gain showed up earlier in 2025.
Read free cash flow alongside its drivers
Operating cash flow for the first nine months of 2026 was $22.9 billion, down from $24.8 billion a year earlier. Income tax payments fell from $2.38 billion to $1.50 billion. Comcast said 2025 legislation is expected to significantly reduce tax payments over the next several years, mainly through additional depreciation deductions.
Lower taxes help near-term cash flow, but they also mean today's cash profile includes timing effects. That's real cash the business kept - but it doesn't automatically translate into permanently stronger earnings power. When you're estimating how much cash can sustainably fund dividends, debt reduction, and ongoing investment, that distinction matters.
Capital expenditures increased to $8.3 billion from $8.0 billion, driven by customer-premise equipment and network spending in Connectivity & Platforms. Capex isn't a discretionary footnote for a connectivity business. The network has to stay competitive, and equipment needs move with customer requirements and technology cycles. Track operating cash flow, capital spending, tax payments, and free cash flow together. If cash generation is leaning on temporary tax benefits while operating cash flow weakens, the headline free-cash-flow figure can overstate the steady-state cushion.
Does below-book value provide a margin of safety?
Not on its own. Comcast's reported shareholders' equity was $92.5 billion, but the balance sheet included $53.2 billion of goodwill, $59.4 billion of franchise rights, and $19.1 billion of other intangible assets. Those add up to about $131.7 billion - more than the equity figure.
If you subtract those intangible balances from equity, you get negative tangible book value of roughly $39 billion. That doesn't mean the intangibles have no economic value - franchise rights and acquired businesses can still generate cash. But it does mean that price-to-book is a weak standalone safety test here. A lot of the accounting value depends on future business performance rather than assets you could reasonably sell for their recorded amount.
Debt changes the risk calculation
Total debt was $87.4 billion at September 30, 2026 - more than Comcast's approximate $82 billion equity market value. That comparison isn't a direct measure of insolvency, because market capitalization and debt represent different claims on the business. Still, it highlights why earnings stability matters. If EBITDA shrinks while debt stays substantial, equity holders take on more risk, and the low P/E doesn't offer much protection.
Comcast repaid $10.4 billion of debt during the first nine months, including early purchases of $4.1 billion of notes due between January 2027 and June 2029. Current portion of debt was $3.56 billion. The company also reported $11.8 billion of available borrowing capacity and said it met the debt-to-EBITDA covenant on its revolving credit facility, with expectations to keep doing so.
That supports manageable near-term financing capacity based on what's in the filing. It doesn't answer the longer-term operating question. A useful monitoring set is debt outstanding, scheduled maturities, interest costs, EBITDA trends, and covenant headroom. Debt repayment is a positive signal - but whether it's durable depends on how much cash the business can generate after the spending required for investment and dividends.
What should investors watch in the planned split?
Comcast announced in June 2026 that it plans to separate NBCUniversal and Sky into a new company, with completion expected in mid-2027. Splitting a corporate structure can make businesses easier to analyze, but the transaction itself doesn't automatically create value. It can also add costs, tax considerations, financing decisions, and operational complexity.
The Q3 10-Q lists conditions and uncertainties, including board approval, tax opinions, regulatory matters, and financing. It also notes that the two resulting companies will each have costs that are shared today. Comcast paused share repurchases at the start of Q3 and expected that pause to continue through the separation. In July, it also agreed to acquire ITV's Media & Entertainment business for up to £1.6 billion.
The unanswered question: who carries the debt?
As of the filings used for this analysis, the allocation of Comcast's $87.4 billion in debt between the businesses wasn't yet clear. That's a key input into any valuation. Two companies can have the same combined earnings and still end up with very different equity values depending on how debt, cash, pension obligations, and ongoing costs get distributed.
Before treating the spin-off as a catalyst, look for concrete terms: the proposed debt allocation, each company's expected standalone costs, dividend policies, tax treatment, financing arrangements, and any updated financial guidance. Until those details are known, valuing the separated businesses is guesswork.
Theme Parks adds another moving part. Its EBITDA fell 17.1% in Q3, and management described the headwinds as cyclical. It could be temporary - but the proof will show up in subsequent attendance, spending, and segment earnings, not just in the label. The same principle applies to the split: separate the announced plan from the final terms and measurable results.
Conclusion
Comcast's roughly seven-times trailing earnings multiple, 5.7% indicated dividend yield, and recent free cash flow make the shares look inexpensive on headline measures. But the real investment case depends on more than the snapshot. Broadband is losing customers and revenue, cash flow benefits from lower tax payments, book value is dominated by intangibles, and the debt allocation for the planned separation remains a major unknown.
The practical approach is to track the evidence quarter by quarter: broadband customers and revenue, segment margins, operating cash flow after capex and taxes, debt repayment, and the actual spin-off terms. If those measures stabilize or improve, the low valuation may deserve a closer look. If they deteriorate, the market's discount may be pricing real risk - not an overlooked bargain. This is analysis of public filings, not investment advice or a recommendation to buy or sell any security.