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MONEX GROUP INC

1. Company Overview

Monex Group is a Japanese digital financial holding company with three economically important businesses: online brokerage, crypto, and asset management. It owns the U.S. active-trader broker TradeStation, controls the crypto platform Coincheck, and has a growing asset-management and wealth-management arm. It also still has major economic exposure to Monex Securities in Japan, although that business moved to equity-method accounting after the NTT Docomo transaction. That accounting point matters: Monex’s headline consolidated revenue now understates the economic size of its Japanese brokerage franchise, so segment profit and customer-asset data matter more than the top-line number alone.

The latest clean official annual base is FY2025, the audited year ended March 31, 2025. More recent data comes from the FY2026 full-year earnings release disclosed on May 12, 2026. That release is official but unaudited. Current share price and market capitalization below are market-data estimates using the June 18, 2026 share price. A post-balance-sheet event also matters: on June 9, 2026, KDDI completed a US$65 million investment for a 14.9% stake in Coincheck Group. Strategically that helps distribution and capital flexibility, but it is not yet a proven earnings driver.

The real growth picture is simpler than the headline numbers suggest. Two drivers matter. First, the group is gathering more client assets through the Monex Securities and NTT Docomo channel: Monex Securities’ assets under custody reached about ¥10.8tn by March 2026, and new account openings were up sharply in FY2026. Second, the AM/WM segment is scaling quickly through fee-bearing assets and performance fees. Crypto can add growth spurts, but I would treat it as optional growth, not foundational growth.

Is this meaningfully different from P/E? Yes. The stock’s earnings yield on reported TTM net income is about 6.8%, but the rough owner-earnings yield is closer to 4%. The gap exists because capitalized software and platform spending are real cash outlays, and because financial-company cash-flow statements are noisy. That is why I do not call Monex cheap simply because the P/E looks mid-teens.

Capital efficiency. ROIC is not a very clean lens for a regulated financial holding company with customer-balance-sheet leverage and equity-method affiliates. ROE is the better guide. Reported ROE has ranged from loss-making to the high 20s over the last several years, which tells you this is a market-sensitive and acquisition-noisy group. The more useful read is that management’s FY2026 materials imply only high-single-digit ROE, still well below the company’s stated 15% target. Incremental capital looks strong in AM/WM, acceptable in brokerage, and inconsistent in crypto and M&A. At the group level, this is not yet a high-return compounder.

Business quality. Where do profits actually come from? Today, not mainly from crypto. They come from securities and increasingly from asset management. Why has this been a decent business? Because regulated custody of customer assets, tax/account friction, established brand trust, and partner distribution create stickiness. Why has it not been a great business? Because pricing power is limited, trading volumes are cyclical, and the crypto arm adds noise and capital-allocation complexity.

2. How the Company Makes Money

Monex is easiest to understand as a portfolio of financial platforms rather than as one monolithic broker. The earnings mix matters more than the legal structure.

The key analytical nuance is that Monex Securities in Japan is no longer fully consolidated. Monex still has major economics there, but they now come through equity-method profit. That means the headline revenue line can make the core business look smaller and more crypto-heavy than it really is. Economically, the group is still more broker plus asset gatherer than crypto proxy.

The moat is moderate, not deep. The barriers are regulation, customer trust, security/custody capability, and distribution partnerships such as NTT Docomo in securities and now KDDI in crypto. Clients also do not casually move funded brokerage accounts, NISA accounts, or crypto holdings. But these are not monopoly economics. Brokerage pricing remains contestable, crypto pricing is cyclical, and technology alone is not enough to defend margins. The quality is best in recurring-balance businesses: client cash, assets under custody, and fee-bearing AUM.

3. Why the Stock Fell

In plain terms, Monex went from being treated as a digitally enabled brokerage with crypto upside to being treated as a noisy financial holding company with mediocre group-level ROE. The shares are down roughly 30% from the 52-week high near ¥905 and now sit only slightly above the 52-week low range around ¥625-640.

The immediate reason is that the most recent visible quarter was messy. In FY2026 Q4, group operating-profit-equivalent dropped sharply quarter on quarter, crypto revenue after financing costs fell 27% sequentially, and several small but confidence-damaging costs hit at once: a margin shortfall on a futures/options customer at TradeStation, compensation tied to unauthorized transactions at Monex Securities, U.S.-stock system migration costs in Japan, and management-change and transaction-related costs at Coincheck. None of those items is fatal. Together, they reminded investors that Monex is operationally complex.

The deeper reason is quality skepticism. FY2026 full-year profit recovered, but investors can see that the comparison is flattered by the absence of FY2025 Coincheck listing charges. They also see that crypto remains volatile, U.S. rates are no longer a clean tailwind for interest income, and the group still has not demonstrated stable mid-teens ROE. The KDDI-Coincheck deal was strategically positive, but the market is waiting for revenue proof rather than rewarding the press release.

4. What the Market Is Assuming

(a) One-time, cyclical, or sentiment-driven factors

• FY2026 profit recovery was mostly a base-effect rebound after the Coincheck listing charges.
• Lower U.S. rates will pressure TradeStation’s net interest income.
• Crypto prices and marketplace activity will remain soft enough to keep Coincheck earnings weak.
• The KDDI partnership is interesting but not immediately monetizable.

(b) Medium-term business headwinds

• Crypto may keep growing users without growing profit.
• Monex Securities may need heavier marketing spend to keep acquiring accounts through partner channels.
• AM/WM growth may normalize after acquisitions and performance-fee wins.
• Group ROE may remain stuck in high single digits rather than move toward 15%.

(c) Potential long-term structural threats

• Brokerage economics may continue to commoditize.
• Crypto regulation, security costs, and public-company overhead may cap Coincheck’s returns.
• Management may keep running a conglomerate that is strategically interesting but economically suboptimal.

Reality check versus the narrative

5. Temporary or Structural?

Most of the recent pain is TIME, not ESSENCE. The latest quarter’s fraud compensation, system migration costs, client margin shortfall, and crypto-volume wobble are all repairable. The real structural question is different: can Monex turn a collection of decent businesses into a consistently high-return group, or will it remain a moderate-quality conglomerate with subpar group ROE?

The bottom line is that I do not see evidence that the core franchise is impaired in an irreversible way. I do see evidence that the group’s overall returns may stay merely adequate unless management shifts the mix further toward asset gathering and away from volatile, lower-quality earnings sources.

Time-as-a-moat test

• Within 2 years: No. Even with today’s market cap in cash, you could not realistically rebuild the full Monex stack that quickly. The blockers are licenses in Japan and the U.S., custody/security infrastructure, partner integrations, and the trust required to hold client assets.
• Within 5 years: You could probably build a respectable niche broker or a crypto venue. You still would not easily recreate Monex’s combined scale: roughly ¥13.6tn of major-group customer assets, nearly 3m Japanese brokerage accounts, more than 2.5m verified Coincheck accounts, and established distribution through Docomo and now KDDI.
• Within 10 years: Parts of it, yes. The remaining blockers would still be regulation, brand trust, client-asset inertia, security reputation, and ecosystem ties. The technology is replicable. The trust and regulated distribution are much harder.

That is why I would call Monex’s moat moderate. It is real, but it is built more on regulation, trust, and distribution than on proprietary technology or dominant pricing power.

6. Is the Market Wrong? By How Much?

Moat & Mispricing Score: 6/10. The market is right about two things: Monex is not a pristine compounder, and crypto earnings deserve a heavy discount. What the market is slightly underpricing is the resilience of the core brokerage business and the fact that AM/WM is becoming a meaningful, higher-quality earnings contributor. So I see a modest mispricing, not a dramatic one. This is a stock for someone willing to own a moderately moated, somewhat messy financial platform, not for someone demanding a clean high-ROIC franchise.

This is a FY2026 earnings-release-based valuation, cross-checked against FY2025 audited capex and balance-sheet context. I use normalized earnings rather than rough owner earnings as the main bridge because Monex is a financial platform with noisy operating cash flow and meaningful capitalized software. The owner-earnings check still matters: it tells me the stock is not obviously cheap on cash conversion.

Valuation bridge. Current market cap of about ¥159.5bn implies a reported TTM earnings yield of roughly 6.8%. My rough owner-earnings estimate implies only about 4%. My base case requires about a 6.5% normalized earnings yield for this mix of moderate balance-sheet risk, useful distribution assets, and real crypto volatility. That is why my base case lands only a little above the current market cap.

A useful cross-check is look-through value. Using June 2026 market data for Coincheck’s U.S.-listed shares and the official post-KDDI share count, Monex’s 71% stake in Coincheck is worth roughly ¥35-40bn on the public market. That means the rest of Monex is being valued at roughly ¥120bn or so. Against current earnings that are coming mostly from securities and AM/WM, that is not demanding. It is also not a huge hidden-asset situation; it is a mild underpricing of the quieter, higher-quality parts of the group.

My conclusion: the market is slightly too pessimistic on the core franchise, but not too pessimistic on crypto volatility or group complexity. That is why the upside looks real but limited unless Monex can prove that FY2026 was not just a better year, but the start of a structurally better earnings mix.

7. Key Facts, Estimates, and Judgments

The most important thing not to miss is this: Monex is not a clean crypto proxy, and it is not a high-quality compounder. It is a moderately moated financial platform whose core brokerage and AM businesses are healthier than the stock action suggests, but whose group-level economics are still dragged down by complexity and volatile crypto monetization. That makes it mildly undervalued, not obviously mispriced.

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