TMUS · Q3 2025 Earnings

Bullish

T-Mobile US

Reported October 23, 2025

30-second summary

T-Mobile delivered 1.007M postpaid phone net adds, Core Adjusted EBITDA of $10.37B (vs. ~$8.5B guide), and raised FY postpaid net adds by ~1.1M, EBITDA by $300M at midpoint, and fiber net-adds by 30%. Management quietly withdrew the "at least 6%" FY service revenue growth guide without replacement — the only off-note in an otherwise aggressive guide-up quarter framed by Srini as an inflection point with "70 million customers paying a premium for something that is simply no longer true." With Sievert pre-committing to raise 2026 and 2027 targets on the year-end call, the bull narrative is shifting from execution to structural share-take.

Headline numbers

EPS

Q3 FY2025

$2.41

Revenue

Q3 FY2025

$21.96B

+8.9% YoY

Free cash flow

Q3 FY2025

$4.82B

Operating margin

Q3 FY2025

20.6%

Key financials

Q3 FY2025

Metric	Q3 FY2025	YoY	Q2 FY2025	QoQ
Revenue	$21.96B	+8.9%	$21.13B	+3.9%
EPS	$2.41	—	$2.84	-15.1%
Operating margin	20.6%	—	24.6%	-405bps
Free cash flow	$4.82B	—	$4.60B	+4.8%

Guidance

T-Mobile raised FY2025 guidance across customer additions, EBITDA, and capex, with material uplifts to postpaid net additions (+1.1M) and fiber growth (+30K), driven by strong Q3 operational performance.

Guidance is issued for both next quarter and the full year. Both may appear below.

Actuals vs prior guidance

Metric	Period	Prior guide	Actual	Δ	Result
Core Adjusted EBITDA	Q3 FY 2025	approximately $8.5 billion	10.374 billion	+$1.87B above guide	Met

New guidance

Metric	Period	Guide	YoY
Postpaid ARPA growth (organic, excluding acquisitions)	FY 2025	approximately 4%	—
Net cash provided by operating activities	FY 2025	27.8 to 28.0 billion	—

Changes to prior guidance

Metric	Period	Prior guide	New guide	Δ	Result
Postpaid net customer additions	FY 2025	6.1 to 6.4 million	7.2 to 7.4 million	+1.1M to +1.0M at low and high end	Raised
Postpaid phone net additions	FY 2025	2.95 to 3.1 million	3.3 million	+0.2M to +0.35M	Raised
Core Adjusted EBITDA	FY 2025	33.3 to 33.7 billion	33.7 to 33.9 billion	+$0.2B at midpoint	Raised
Fiber customer net additions	FY 2025	approximately 100,000	approximately 130,000	+30,000	Raised
Cash Capex	FY 2025	approximately 9.5 billion	approximately 10.0 billion	+$0.5B	Raised
Adjusted Free Cash Flow	FY 2025	17.6 to 18.0 billion	17.8 to 18.0 billion	+$0.2B at low end	Raised
Effective tax rate	FY 2025	24% to 26%	23% to 24%	-1pt at both ends	Lowered
Service revenue growth	FY 2025	at least 6%	Withdrawn — no replacement	—	Withdrawn

Reaffirmed unchanged this quarter: Postpaid ARPA growth (including dilution) (at least 3.5%)

Segment performance

Q3 FY2025

Segment	Q3 FY2025	YoY
Postpaid Service Revenues	$14.882B	+12.0%
Equipment Revenues	$3.465B	+8.0%

Platform metrics

Q3 FY2025

Segment	Q3 FY2025
Postpaid Phone Customers	84.632 million
Total Postpaid Customers	114.063 million
Postpaid Phone Net Customer Additions	1.007 million (Q3 2025)
Total Broadband Customers	8.889 million
Postpaid ARPA	$149.44
Postpaid Phone ARPU	$50.71
Postpaid Phone Churn	0.89%

Profitability

Q3 FY2025

Segment	Q3 FY2025
Core Adjusted EBITDA Margin	47.6%

Management tone

Narrative arc: Steady execution → Network defense → Offensive repositioning → Inflection point

The network narrative has completed its multi-quarter shift from defense to offense. A year ago T-Mobile framed network as a parity story to be defended; in Q2 management flipped to "there's a new best network in America" with 20% market awareness; this quarter Srini quantified the prize directly. "One out of every three AT&T and Verizon customers chose them at some point because they were the best network… there are 70 million customers that are paying a premium for something that is simply no longer true, and that we can unlock with our best network." This is no longer a marketing message — it's a sized addressable market reframing that turns share-take from incremental to structural.

Guidance posture has shifted from "beat rational aggressive assumptions" to pre-committing future raises. In Q2 Osvaldik deflected sandbagging questions with executional humility. This quarter Sievert went on record: "I plan on increasing our guidance for 26 and 27 on our year-end call." Telecom CEOs rarely pre-announce future-year guidance raises one quarter ahead. The signal is that the Q3 inflection isn't viewed as a single-quarter pull-forward — it's viewed as a new run rate.

M&A framing has moved from tactical to strategic accelerant. Through 2024 and into Q2, U.S. Cellular and the fiber JVs were discussed as opportunistic adjacencies. This quarter Peter framed the deal as enabling "a broader network transformation initiative focused on optimizing customer experience and value through cell site location optimization" with the synergy timeline pulled forward to "within two years of close" — faster than the Sprint integration. Cell site decommissioning costs of $160M in Q4 and $300M in synergy-realization costs are being absorbed without flinching the EBITDA raise.

Digital transformation crossed from cost story to demand-side moat. 75% of upgrades are now digital, up from "two-thirds" in Q2. Srini connected it directly to growth: the AI-driven simplification of a "36-step upgrade process" is being cited as a churn and ARPA driver, not a SG&A line. The language has shifted from efficiency to differentiation: "momentum which we're seeing right now is being driven by widening differentiation, which means it's truly sustainable."

The overall tone is explicitly inflectionary. "Our most exciting days are ahead of us"; "differentiation is widening"; "this team's ability to deliver is totally unmatched." This is meaningfully more forward-leaning than T-Mobile's typical post-Sprint cadence, and pairs with the unusual pre-commit to 2026/2027 guidance raises. Management is asking the buy-side to underwrite a new growth regime, not a continuation of trend.

Recurring themes management leaned on this quarter:

Network perception inflection as primary growth driverDigital transformation reducing customer friction and driving loyaltyBroad-based geographic growth including rural and smaller marketsM&A as vehicle for network optimization and cost structure improvementCash conversion excellence (26% service revenue to free cash flow)Sustainable differentiation via dual drivers of network + digital, not one-off promotions

Risks management surfaced:

Dilutive impacts of U.S. Cellular, Metronet, and Lumos on near-term metricsCosts to achieve synergies ($300M expected in Q4) impacting near-term profitabilityCell site decommissioning expenses ($160M in Q4)Competitive response to network leadership perception shiftExecution risk on digital transformation adoption rollout

Q&A highlights

Benjamin Swinburne · Morgan Stanley

How will T-Mobile close the network perception gap beyond marketing? What is the timeline and path to achieving full USM synergies over the next two years?

Management highlighted that network perception is closing through multiple vectors: digital transformation, local activation, ease of switching, and organic growth from large switching volumes. On USM synergies, the vast majority of the $950M OPEX and $250M CAPEX synergies will be captured in 2026 with full run-rate achievement by end of 2027, faster than the Sprint integration.

Network perception at all-time high among switchers75% of upgrades now digitalUSM synergies: $950M OPEX + $250M CAPEXFull synergy realization by end of 2027

John Hodelick · UBS

What is the size of the fiber opportunity, current homes passed, penetration targets, and deal environment? What drove FWA growth and what is the opportunity ahead?

Management emphasized broadband as core un-carrier opportunity with complementary FWA and fiber strategies. FWA grew 22% YoY with 500K+ net adds and speeds up 50% in two years while doubling customer base. Fiber targets 12-15M homes passed with capital-light JV structure. Both businesses set up with economics allowing sustainable scale and un-carrier positioning.

FWA net adds: 500K+ (22% YoY growth)FWA speeds increased 50% in 2 yearsFWA customer base doubledFiber homes passed target: 12-15M

David Barden · New Street Research

What are T-Mobile's learnings from the Starlink satellite partnership and how is it different from competitors' AST Space Mobile investments? Where is T-Mobile on the AI initiatives announced a year ago?

Management positioned satellite as adjacent service eliminating dead zones with version 2 backed by more spectrum. On AI, Intent CX is well underway and already affecting customer results (upgrade flows). T-Mobile intends to be 2-3 years ahead in both 6G and satellite maturity. Early AI implementations driving simplified 36-step upgrade process and customer-driven network optimization.

Satellite positioned as dead-zone elimination serviceIntent CX partnership with OpenAI delivering results nowUpgrade process simplified from 36 stepsTarget: 2-3 year technology lead in 6G and satellite

Sam McHugh · BNP Paribas

What are trends in SAC and SRC? Is digital customer acquisition (e.g., T-Life app, eSIM) being used to allow competitive customers to trial the network?

Management confirmed strong customer lifetime values and resilient economics. SAC/SRC remain favorable with ARPU guidance increased to approximately 2% full-year growth (up from 1.5%). On digital acquisition, management declined to detail all competitive tactics but confirmed simplification of painful processes (similar to 36-step upgrade reduction) and that AI is making complex transactions uncomplicated.

Full-year ARPU increase: ~2% (raised from 1.5%)Strong customer lifetime values maintainedCustomer-focused pain-point elimination via digitalAI improving transaction complexity

Michael Rollins · Citi

Can you discuss the switcher pool dynamics and whether elevated switching is expected to persist? Could future upgrade rates improve retention given T-Mobile's 2-year EIP structure?

Management attributed elevated switching to competitors' transition from 2-year to 3-year plans now rolling off. Industry churn returning to normative rates in 2025. T-Mobile sees this as favorable (more 'jump balls' for net share taker). CLVs holding steady despite competitive intensity; premium plan adoption increasing and churn decreasing. No plans announced to change payment plan strategy.

Competitors' 3-year plans rolling off in 2025Industry churn normalizingCLVs resilient across portfolioPremium plan adoption increasing

Answers to last quarter's watch list

Postpaid phone churn normalization in Q3. Resolved. Postpaid phone churn came in at 0.89%, down 1bp from the Q2 0.90% level, in line with management's prior guide of sequential improvement. The Q2 rate-plan optimization disruption did not linger.

Resolved positively

U.S. Cellular integration milestones post-August 1 close. The Q3 print absorbed $160M of cell site decommissioning costs (Q4) and $300M of synergy-realization costs, and management pulled the synergy timeline forward to full run-rate by end of 2027 — faster than Sprint — with the bulk of the $950M OPEX and $250M CAPEX synergies captured in 2026. Cash capex was raised $500M to ~$10B "entirely" for U.S. Cellular inclusion.

Resolved positively

Fiber net-add run rate post-Metronet close. The FY fiber net-add guide was raised 30% from ~100K to ~130K, and Srini sized the long-term homes-passed target at 12–15M via capital-light JVs. The commercial T-Fiber launch is implicitly tracking, given the raise rather than a hold.

Resolved positively

ARPA pace as rate-plan optimization laps. The new organic ARPA growth disclosure of ~4% (excluding U.S. Cellular, Metronet, and Lumos dilution) is above the 3.5%+ including-dilution guide and confirms the T-Satellite/premium-tier migration thesis is structural rather than transitional. The headline ARPA print of $149.44 looks soft sequentially only because of acquisition dilution.

Resolved positively

Q3 Core Adj. EBITDA at ~$8.5B and whether Q4 would do disproportionate heavy lifting. Q3 came in at $10.37B — 22% above the ~$8.5B guide — and FY was raised by only $300M at the midpoint to $33.7–33.9B, implying Q4 EBITDA in the $7.4–7.6B range. The Q4 step-down is real but absorbs the $160M decommissioning costs, $300M synergy-realization spend, and ongoing investment cadence. The "accelerated investments" framing from Q2 turned out to be back-half weighted into Q4, not Q3.

Resolved positively

What to watch into next quarter

The withdrawn FY service revenue growth guide. Watch whether year-end disclosures reframe the metric, restore a guide, or quietly bury it. If reported FY service revenue growth comes in materially below the prior "at least 6%" floor on a like-for-like basis (i.e. ex-acquisition contribution), the silent withdrawal will look like a real cut rather than acquisition-accounting noise.

2026 and 2027 guide raises Sievert pre-committed to on the year-end call. Watch the magnitude versus prior Capital Markets Day targets — specifically whether the 2027 Core Adjusted EBITDA target moves meaningfully above the prior framework. Anything less than a clear step-up would undercut the "most exciting days are ahead of us" framing.

Q4 Core Adj. EBITDA in the $7.4–7.6B implied range. Watch whether the $160M decommissioning and $300M synergy costs land where guided and whether the FY $33.7–33.9B range is delivered at the high end — the EBITDA raise was conservative versus Q3's 22% beat and leaves room for a further FY raise in early February.

Postpaid phone churn vs. the 0.89% Q3 level. Q4 typically sees seasonal churn pressure on holiday switching activity; staying below the 0.90% Q2 level confirms the rate-plan optimization headwind is behind the company.

Organic ARPA growth pace at the ~4% disclosure level. If Q4 reporting holds organic ARPA growth at or above ~4% as 2H lapping completes, the structural pricing-power thesis is intact heading into 2026 — and the case for Sievert's pre-committed guidance raise hardens.

Sources

T-Mobile US Q3 2025 press release / Form 8-K Exhibit 99.2 — https://www.sec.gov/Archives/edgar/data/1283699/000128369925000153/tmus09302025ex992.htm
T-Mobile US Q3 2025 earnings call commentary (management prepared remarks and Q&A).

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