Business

Know the Business — Charter Communications, Inc. (CHTR)

Charter is a leveraged subscription rentier: it owns one of the two large hybrid fiber-coax cable plants in the United States, charges roughly 30 million households a recurring monthly fee for moving data and entertainment over that plant, and converts ~40% of revenue into Adjusted EBITDA every year. The argument is not whether the network is valuable — it is — but whether broadband subscribers and pricing power can hold while fiber overbuilders and 5G fixed-wireless take share, and whether the current peak capex bill normalizes on the company's stated schedule. The market is pricing the franchise as a melting asset (FCF yield ~25% at the recent $140 share price); management is framing it as a temporary capex hump that gives way to FCF/share compounding.

1. How This Business Actually Works

Charter rents access to its fiber-powered HFC network on a monthly basis to 31.8 million customer relationships and overlays a Verizon-hosted mobile service on top. The franchise was built once, in the 1990s–2010s, at the cost of roughly $96 billion of debt and another $30 billion of equity invested in plant. The asset is now harvested through subscription pricing: 89% of revenue is recurring monthly fees for Internet, Mobile, Video, Voice and commercial connectivity. The lever the operator pulls is penetration × ARPU × products-per-relationship — how many of its 58 million passings actually subscribe, what each one pays, and how many of Charter's products each home buys.

The mix tells the story. Internet, Mobile and Commercial connectivity are growing; Video, Voice and (off-cycle) Advertising are bleeding. Mobile lines are now Charter's only meaningful growth product — 22% revenue growth in 2025 — sold as a Verizon MVNO with roughly 89% of mobile data offloaded onto Spectrum's own WiFi and CBRS small cells. The wholesale cost paid to Verizon falls as WiFi offload rises, so more Spectrum Mobile lines means more bundle margin and lower churn on the underlying broadband relationship.

The killer line is below EBITDA, not in revenue. Charter prints the highest EBITDA margin in its peer set (39.5%) but the lowest free cash flow margin (8.1%) because depreciation runs ~$8.7B per year, interest expense is ~$5.0B, and capex consumes 21% of every dollar of revenue at the current peak. The company's stated path back to a normal capex/revenue ratio (~14–15%) is the entire FCF-compounding case for the equity. Failure of that path — either because the rural/DOCSIS programs slip or because subscriber and ARPU losses outrun the margin uplift — is the entire bear case.

2. The Playing Field

In a peer set where every operator has scale, Charter is the high-margin / high-leverage / high-capex outlier. The cable model is structurally more profitable per dollar of revenue than the mobile or telco model — but it is also more capital intensive in the current network-evolution cycle, and the market is paying for it by assigning Charter the lowest multiple in the group.

Three readings from the peer map. Cable and mobile converge on a similar ~36–40% EBITDA margin, but they get there differently — cable through low marginal cost on a built-out plant, mobile through scale across spectrum and towers. Charter sits in the bottom-left quadrant (cheap multiple, low FCF margin) while T-Mobile sits in the top-right (expensive multiple, best FCF margin) — the equity market is paying for FCF visibility, not for EBITDA margin. Comcast is the natural twin: same cable economic engine, less leverage, slightly lower margin, but FCF margin is more than double Charter's because Comcast is past the worst of its own network-investment cycle. That gap defines what "good" looks like for Charter if capex normalizes on schedule.

The smaller cable comp (Cable One) shows what can happen when a pure-play cable operator loses pricing discipline and broadband net adds at the same time: EBITDA margin collapses from the high-30s to high-single-digits and leverage spikes. That outcome is the visible memento mori for the cable bear case on Charter, even though Cable One's small footprint and aggressive video-shedding strategy make the analogy imperfect.

3. Is This Business Cyclical?

Charter is not GDP-cyclical; it is competition-cyclical. Broadband demand grows in good years and recessions alike, programming costs and labor compensation move on long contracts, and the asset base is paid for. What turns is the supply of competing access pipes into Charter's footprint — fiber overbuilds and fixed-wireless — and that supply is in the up-leg of its first real cycle since cable consolidated in 2016. The customer-relationship trend tells that story more clearly than any macro chart.

The customer-relationship line crested in 2023 at 32.6 million and has been bleeding 200–400K per year since — small in percentage terms, but a directional reversal after a decade of steady growth. The cash-flow chart shows that the same period coincides with a deliberate step-up in capex (from a $7B base to ~$11.7B today), which is what is compressing FCF. Both pictures are consistent with the company's narrative — a defined window of competitive shock and self-funded network response, not a permanent regime — though confirming that requires watching the post-2027 capex print, not just hearing the framing.

The cycle hits gross adds first, then ARPU, then EBITDA, then FCF. Through Q1 2026 Charter has reported the first cycle in two decades where Internet subscribers are declining (-120K in the quarter) and residential ARPU is also negative (-1.4% YoY) at the same time. That co-incident weakness, not the absolute numbers, is what the equity market is debating — whether 2026 is the trough of a normal competitive shock or the start of a permanent re-rating to lower terminal subscribers and lower terminal price.

4. The Metrics That Actually Matter

Direction-of-cycle score, scale −1 (deteriorating fast) to +1 (improving fast); positive = good for CHTR.

Newcomers most often over-index on video subscribers (the legacy product, now ~25% of revenue and managed for retention not margin) and EBITDA margin in isolation (which can stay elevated while the franchise erodes underneath). The three variables that move the equity are net broadband adds, ARPU year-over-year, and the FCF inflection. If the net-adds line stops getting worse and capex steps down on schedule, FCF per share approximately doubles even with no revenue growth; if either fails, the equity is exposed to a value-trap outcome.

5. What Is This Business Worth?

The right lens is normalized free-cash-flow per share through the capex hump. This is one converged economic engine — broadband, mobile, video, voice and commercial connectivity all run over the same plant, share the same field force, and bill on the same monthly cycle. The segments that are technically disclosed (residential vs. commercial vs. advertising vs. other) do not have separately defendable enterprise values, and the company does not run them as independent franchises. A sum-of-the-parts framing would manufacture false precision; it is not the lens this business deserves.

Where the stock is today. At the recent $140 share price (May 2026), Charter trades at roughly 4.4x FCF and a ~25% FCF yield on equity. EV/EBITDA is ~5.3x and net debt is ~5.4x the current equity value. At that price the buyer is implicitly long two options: capex normalization (worth, mechanically, several billion dollars of incremental FCF) and stabilization in broadband subscribers and ARPU within a few quarters. The setup pays out asymmetrically if both options resolve favorably and is dangerous if either expires worthless.

The buyback chart is the cleanest single picture of how this company thinks about value. From 2019–2022 Charter consistently spent above FCF on buybacks, leaning hard on the balance sheet to retire 22% of shares in three years. When the stock re-rated in 2023–2024 and capex spiked, the company throttled repurchases back to roughly FCF — disciplined, not stretched. In 2025, with leverage in the stated band and the stock at a depressed price, the buyback was re-armed at $5.1B (above FCF again). The pattern: management sizes buybacks to the gap between its own view of intrinsic value and the market's price.

6. What I'd Tell a Young Analyst

Three things to anchor on. First, this is a leveraged subscription rentier, not a media company — value lives in the broadband relationship and the mobile attach to it, not in the cable bundle or the regional sports nostalgia. Second, the equity is a barbell: most of the enterprise value sits in the bondholders' hands, so the equity moves on changes in leverage and FCF per share more than on revenue. Third, when in doubt, follow the buyback — the company has consistently sized capital return to its own view of value, and the 5.1B of buybacks in 2025 at a now-much-lower stock price is the single best-informed insider signal you have.

What to watch first. Internet net adds and residential ARPU on the next quarterly print, every quarter, without fail. The capex run-rate against the "below $8B" target on every 10-Q. The Cox transaction closing in California and the consolidated leverage at first reporting. T-Mobile and Verizon FWA net adds quarterly — they are the marginal sub buyer that is leaving Charter behind. State BEAD allocations — fiber-only rules transfer subsidy money to telcos.

What the market may be missing. That the mobile attach is a structural margin and churn lever, not a marketing gimmick — every Spectrum Mobile line both adds revenue and lowers the churn on the underlying broadband relationship. That a 3–4 quarter window of subscriber declines is exactly what cable looked like during prior competitive waves (1990s DBS, 2000s DSL, 2010s FTTH) before the franchise re-stabilized. That the Liberty Broadband Combination retires ~41.5M Charter shares at the deal exchange rate — a quietly large share-count event that the consolidated cash buyback line does not capture.

What would change the thesis. Net adds stop getting worse and turn back toward zero by mid-2027 — confirms the bull frame. Capex glide-path met on schedule — confirms the FCF inflection. Either ARPU continues to compress for more than two more quarters or net adds accelerate to -250K/quarter or worse — cable is being permanently re-rated and the leverage becomes the story. Cox closes with synergies tracking well below the $800M run-rate management raised to in Q1 2026 (originally $500M) or pro-forma leverage above 4.75x — trim signal. The thesis is not "is Charter a good business" — it is, with EBITDA margins few industries can match. The thesis is whether the franchise is past the worst, or just entering it.