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マネックス株式会社 — Japan crypto-asset-derivatives trading operator overview

Confidence: Likely Updated 2026-05-18 Review by 2026-08-08 Sources 4 Machine-translated Original (JA)
#fintech#jp-crypto-exchange#vasp#crypto-derivatives
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This entry sits under exchanges index. Read it with FSA crypto-asset exchange registration system — number system / Local Finance Bureau jurisdiction / registration requirements for adjacent context and Japan Financial Regulation — Legal Framework for Tokens, Crypto Assets, and Payments for the broader system boundary.

FSA registration number: Director-General of the Kanto Local Finance Bureau (Kinsho) 第165号 · JVCEA member #1024 · crypto-asset derivatives trading only (spot trading is handled by the subsidiary Coincheck)

1. Corporate / shareholders

  • Trade name: マネックス株式会社 (English: MONEX, Inc.)
  • Common name: Monex Securities (widely used as a common name / service name rather than the trade name)
  • Established: 1999年 (originally established as Monex-Beans Securities)
  • Head office location: 1-12-32 Akasaka, Minato-ku, Tokyo
  • Parent company: Monex Group, Inc. (TSE Prime 8698)
  • Listing status: Unlisted (a wholly-owned subsidiary of Monex Group)

Division of roles within the group (important):

  • マネックス株式会社 (this entry): crypto-asset derivatives (CFD) trading business + online securities business (main business)
  • jp-exchange-coincheck (subsidiary): spot crypto-asset exchange business (FSA registration number 00014, JVCEA #1017)
  • Monex, Inc. (US subsidiary): US securities business

マネックス株式会社 is not a crypto-asset exchange service provider (spot trading); it provides crypto-asset CFDs (contracts for difference) as a financial instruments business. Its own site also explicitly states, “We are not a crypto-asset exchange service provider, and we do not provide crypto-asset trading.”

2. License / registration status

  • Financial instruments business: Director-General of the Kanto Local Finance Bureau (Kinsho) 第165号
  • JVCEA membership type: Type I member #1024 (crypto-asset derivatives trading only)
  • Crypto-asset exchange business: none (no spot-exchange-business registration)

Associations joined:

  • Japan Securities Dealers Association
  • Type II Financial Instruments Firms Association
  • Financial Futures Association of Japan
  • Japan Virtual and Crypto assets Exchange Association (JVCEA)
  • Japan Investment Advisers Association

3. Handled currencies

As Monex Bitcoin (crypto-asset CFD), it handles the following against-the-yen pairs:

  • BTC/JPY (Bitcoin)
  • XRP/JPY (XRP)
  • ETH/JPY (Ethereum)
  • Other major instruments (the number of published instruments is not disclosed)

Characteristics: No spot holding of crypto assets whatsoever. Everything is contracts for difference (CFD) only. Leverage up to 2 x. Entry from the sell side supported (short possible).

4. Scope of operations

Core business (principal business): internet securities business

  • Brokerage and dealer operations for domestic equities / US equities / Chinese equities / investment trusts / FX / futures and options / gold and platinum / bonds, etc.
  • NISA / iDeCo support

Crypto-asset-related (ancillary business):

  • Crypto-asset CFD (Monex Bitcoin) only
  • No spot trading / physical custody / wallet / staking, etc. provided
  • Trading fees: free (revenue from spreads and leverage fees)
  • Trading tool: dedicated smartphone app “MONEX TRADER CRYPTO” (iOS / Android)
  • Margin ratio: 50% or above (i.e., leverage up to 2 x)
  • Trading hours: in principle 24 hours, 365 days including weekends (excluding weekly maintenance)

Fiat-currency deposit channels: via the comprehensive securities trading account (bank transfer / quick deposit, etc.). No dedicated direct deposit channel for the crypto-asset CFD is published.

5. Market share / trading volume

  • The market share in a crypto-asset-CFD-specialist comparison is not published
  • One of the 13 社 derivatives operators that are JVCEA members (#1024) 1 社
  • Main competitors (derivatives peers): bitFlyer (FXP division), GMO Coin, Rakuten Wallet, Jp Exchange SBI Securities, Jp Exchange Dmm Com Securities, etc.
  • Customer base: domestic individual investors (retail) centered on Monex Securities account holders
  • Monthly account numbers, etc., are published in the “Monthly Overview of Account Numbers, etc.” (the detailed figures could not be obtained as the published page was inaccessible at the time of access)
  • Number of accounts in the core securities business: on the order of several million accounts (Monex Group monthly disclosure) — for precise figures, refer to the official IR

6. History / major incidents

  • 1999年: Established as Monex-Beans Securities (one of Japan’s first internet-specialist securities firms)
  • 2000年 era: there was a period with support from Sony Financial (group transitions)
  • 2019年: Acquired Coincheck, Inc. (after the 2018 年 NEM outflow incident). Incorporated it under the Monex Group umbrella, with a structure where the crypto-asset spot business is handled by Coincheck
  • From around 2023年 onward: Monex Bitcoin (crypto-asset CFD) service launched (as a JVCEA derivatives member)
  • Recent administrative actions / large-scale system failures: none published (as of the access date 2026-05-18)

Note: The 2018 年 Coincheck NEM (XEM) outflow incident (about 580 億円 in scale) occurred at Coincheck, not at マネックス株式会社 itself. Monex was the party that subsequently acquired Coincheck.

  • Coincheck’s Nasdaq listing plan: the parent Monex Group, as Coincheck Group N.V., has been advancing procedures to seek a Nasdaq listing since 2024 年 (as of 2026-05 , no official confirmation of listing completion. An information session for individual investors as Coincheck Group N.V. is scheduled for 2026-05-20)
  • Public announcements in the most recent 12 months regarding expansion of the crypto-asset CFD functions of the Monex Securities body itself: none published (as of 2026-05 )
  • Function expansions of the securities business, such as point linkage with the d Card, are ongoing
  • Representative Director and Chairman: Oki Matsumoto — founder and Chairman of the Board of Monex Group. Concurrently serves as an officer of マネックス株式会社 (the specific title as of 2026-05 could not be confirmed as the official site company-overview page was inaccessible)
  • Recent information on the Monex Securities CEO requires confirmation from the info.monex.co.jp company-overview page

Sources