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NTT INC

Company Overview

NTT is Japan’s dominant telecom and digital infrastructure group. The legacy core is still domestic connectivity: DOCOMO in mobile, NTT East and NTT West in fixed access, plus national enterprise networking. The newer growth engines are NTT DATA’s global IT services and data centers, and DOCOMO’s Smart Life and finance ecosystem. This matters because the stock is no longer a pure telecom call. It is a hybrid of regulated infrastructure, enterprise IT, and consumer platform assets.

The data needs care. The latest clean official annual base is FY ended March 2025. More recent data is the full-year earnings release for FY ended March 2026, disclosed on May 8, 2026, but it is unaudited and comparability is muddied by NTT DATA becoming wholly owned in September 2025 and the consolidation of SBI Sumishin Net Bank inside DOCOMO. I therefore use FY ended March 2025 audited numbers as the clean base and use FY ended March 2026 as an official but unaudited update.

Growth has been real, but modest. On an audited basis, revenue rose from ¥11.9T in FY ended March 2020 to ¥13.7T in FY ended March 2025, roughly a 3% CAGR. Audited net income attributable to NTT rose from ¥855B to ¥1.0T, also roughly a 3% CAGR. Adjusted EPS did a bit better, around 5% CAGR, helped by buybacks. Over the shorter audited three-year window, revenue still grew, but profit growth largely disappeared. This is not a high-speed compounding story.

The actual growth drivers were not legacy voice or retail mobile pricing. They were, first, enterprise IT, cloud, and data-center demand through NTT DATA and the broader Global Solutions arm; second, DOCOMO’s Smart Life and finance businesses. The legacy connectivity franchises still fund the group, but they are no longer the growth engine.

A rough owner-earnings bridge looks meaningfully weaker than the headline P/E suggests. A simple “net income minus capex” bridge would double-count depreciation, so the cleaner rough bridge is net income plus depreciation, minus sustaining capex, minus working-capital drag.

At today’s market cap, that implies an owner-earnings yield of roughly 5.7% to 7.3%, with a base case around 6.6%. Yes, that is meaningfully worse than the P/E implies, because NTT is capital intensive. Reported audited free cash flow in FY ended March 2025 was only about ¥0.36T, or roughly 3% of today’s market cap. The investment case only works if part of recent capex is genuinely growth capex rather than maintenance.

Capital efficiency is mixed. Reported consolidated ROE has mostly lived in a 10% to 15% range, and external ROIC calculations land in the high-single-digits to low-teens. But the more decision-useful point is management’s own internal evidence: existing-areas ROIC fell from 8.1% to 5.6% in the latest audited annual, and the revised FY2030 target is only 5.5% excluding financial businesses. That is not the signature of a business deploying incremental capital at exceptional rates.

How the Company Makes Money

Where profits actually come from is straightforward. The group still earns most of its money from connectivity and enterprise telecom, not from moonshots. The newer businesses are real, but the old pipes still matter most.

That mix tells you two things. First, NTT remains a real moat business because the fixed network, spectrum position, local access footprint, enterprise relationships, and brand trust are hard to replicate. Second, it is not a beautiful business in the software sense. The best assets are infrastructure assets, and those require constant reinvestment.

The most important internal shift is inside DOCOMO. In DOCOMO’s official but unaudited internal management figures for FY ended March 2026, Consumer Communications operating profit fell from ¥471.2B to ¥304.6B, while Smart Life rose from ¥233.6B to ¥302.7B and Enterprise rose from ¥315.8B to ¥334.7B. In plain English: the old cash cow weakened sharply, but the profit base is broadening.

NTT has historically been a good business because of four advantages that are still real: spectrum and fixed-line barriers, nationwide infrastructure that would be ruinously expensive to reproduce, enterprise and public-sector trust, and an enormous installed customer base tied into billing, identity, points, and adjacent services. Where the moat is weaker is retail mobile pricing. Japan’s mobile market is mature, politically sensitive, and competitive. NTT still has scale. It does not have unlimited pricing power.

Why the Stock Fell

This is not a scandal-driven collapse. It is a slow derating. The shares are around ¥152, versus a 52-week high of roughly ¥167, and they are only a little above the 52-week low near ¥148. The market has not panicked. It has simply stopped paying for NTT as if the old telecom cash machine were intact and the new businesses were clean upside.

The immediate trigger was the May 2026 full-year results release. Revenue and operating profit still grew, but management also admitted that the old ¥4T EBITDA target for FY2027 was no longer realistic and pushed that goal out to FY2030. At the same time, DOCOMO’s consumer profitability deteriorated, interest costs moved up, and the balance sheet became harder to read after the NTT DATA full buyout and the bank consolidation. Investors concluded that the business mix is getting bigger, but not obviously better.

For the year ending March 2027, management guided to revenue growth but a decline in profit attributable to NTT from ¥1.037T to ¥980B. That is exactly the kind of guidance that keeps a stock near the lows: sales up, complexity up, profit down, and capital intensity still heavy.

What the Market Is Assuming

(a) One-time / cyclical / sentiment-driven factors

• DOCOMO is overspending on sales promotion and network remediation.
• Interest expense is temporarily elevated after acquisitions and financing.
• The NTT law debate and possible government selldown create a technical overhang.
• The latest balance sheet is noisy because of reorganization and bank consolidation.

(b) Medium-term business headwinds

• Consumer mobile revenue is still declining.
• Consumer Communications profit is falling much faster than group profit.
• Existing-area ROIC has deteriorated.
• Free cash flow is being squeezed by capex and cost inflation.
• The old FY2027 growth plan is broken.

(c) Potential long-term structural threats

• Retail mobile connectivity has become a lower-return utility.
• Growth businesses may replace revenue, but not the old margin structure.
• AI, data-center, and finance investments may add scale without high returns.
• Regulation and universal-service obligations limit pricing freedom and strategic flexibility.

Temporary or Structural?

Reality check vs market narrative. The market is directionally right, but it is bundling together several very different problems.

DOCOMO subsegment figures above are official company disclosure but unaudited internal management figures. They are useful for diagnosis, but not as clean as the audited consolidated annual accounts.

Structural vs non-structural diagnosis. The key distinction is between a repairable network/customer issue and a harder, more permanent compression in mobile economics.

The bottom line is this: one part of the problem is essence, not time. DOCOMO’s consumer business no longer has the easy economics it once had. But that is not the same as saying the moat is gone. The fixed network, enterprise relationships, spectrum, and national-scale infrastructure are still there. The franchise is weaker at the margin, not broken at the root.

Is the Market Wrong? By How Much?

Time-as-a-moat test. If I had NTT’s current market capitalization in cash, I could not recreate the full business.

• Within 2 years: No. You cannot recreate nationwide spectrum positions, local-loop infrastructure, enterprise trust, and a 90M-plus mobile base that quickly.
• Within 5 years: Still no. You could build data centers, an MVNO, and a decent enterprise IT operation, but not NTT East/West’s access network or DOCOMO’s embedded distribution, billing, and identity ecosystem.
• Within 10 years: You could rebuild pieces of the business, especially enterprise IT and data centers, but not the integrated fixed-plus-mobile-plus-enterprise ecosystem at anything like current scale and trust.

What would still block you is spectrum, rights-of-way, local fiber footprint, regulatory permissions, national brand trust, public-sector and enterprise relationships, massive installed customer bases, and the DOCOMO points / ID / finance ecosystem. That is why the moat is real. It is just not a moat that guarantees high incremental returns.

Intrinsic value. This is a FY ended March 2025 audited valuation adjusted with FY ended March 2026 unaudited updates. I value NTT on post-interest owner earnings, not on headline EPS. Because this is equity cash flow, I do not separately add or subtract net debt in the bridge; leverage is reflected instead in the required equity yield. NTT’s economic net debt and capital intensity are the reason I demand a fairly full yield.

The current market cap of roughly ¥12.4T implies an owner-earnings yield of about 6.6% on my base estimate of ¥0.82T. I think a required equity yield of roughly 6.0% is more appropriate for a durable but slower, capital-intensive infrastructure franchise. That gap is worth about ¥1.3T of equity value, or roughly ¥16 per share. That is a modest mispricing, not a huge one.

The key caveat is important. If you believe audited FY ended March 2025 free cash flow of only ¥0.36T is the true economic owner-earnings base, then the shares are not cheap. The case only works if you believe some of current capex is genuinely growth capex and that the growth businesses can earn at least acceptable returns.

So, is the market wrong? Partly. The market is right that the old mobile cash-cow economics have been structurally impaired. The market is too negative only if it assumes that this impairment destroys the wider group franchise or makes the new profit pools irrelevant. My view is that the stock is mildly undervalued, but it is not a fat pitch.

Key Facts, Estimates, and Judgments

Moat & Mispricing Score: 6/10. NTT still has a genuine moat in fixed access, spectrum, enterprise relationships, and national-scale trust. The market is right to punish the stock for weaker DOCOMO consumer economics and lower incremental returns on capital; those are real, not cosmetic. What the market is getting somewhat wrong is extrapolating that problem across the entire franchise and ignoring that Global Solutions and Smart Life are now meaningful profit pools. The current price implies roughly a 6.6% owner-earnings yield on my base case, versus a required yield closer to 6.0%; that is enough for a modest valuation gap, but not enough for a high-conviction “one-time issue” call.

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