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Coincheck posts 12-month crypto volume, accounts data

Coincheck Group reports 12 months of Coincheck operating metrics, showing rising verified accounts but softer trading activity and shifting economics for some new accounts.

Filing Impact
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Filing Sentiment
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Form Type
6-K

Rhea-AI Filing Summary

Coincheck Group N.V. (CNCK) furnished a Form 6-K providing preliminary monthly operating metrics for its subsidiary Coincheck, Inc. for September 2025 through August 2026, including Exchange Trading Volume, Marketplace Trading Volume, Customer Assets and Number of Verified Accounts.

Exchange Trading Volume peaked in October 2025 and was lower in early-to-mid 2026, while Marketplace Trading Volume remained much smaller and also trended lower over the period. Customer Assets declined from late 2025 levels before recovering in mid-2026, and Verified Accounts increased steadily, reaching 2,747,600 by August 2026. From June 2026, a substantial number of new Verified Accounts may come from crypto-as-a-service relationships where third parties receive a significant portion of fee revenue from those accounts.

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Filing Explained

The twelve-month monthly metrics remain preliminary estimates based on currently available information: they have not been audited, may be updated, and should not be extrapolated to future periods.

Exchange Trading Volume, September 2025 243,278,000,000 yen Total value of transactions on the exchange platform in September 2025
Exchange Trading Volume, August 2026 203,417,000,000 yen Total value of transactions on the exchange platform in August 2026
Customer Assets, September 2025 1,189,219,000,000 yen Customer Assets at month-end September 2025
Customer Assets, June 2026 631,633,000,000 yen Customer Assets at month-end June 2026
Customer Assets, August 2026 830,397,000,000 yen Customer Assets at month-end August 2026
Verified Accounts, September 2025 2,421,080 accounts Number of Verified Accounts at month-end September 2025
Verified Accounts, August 2026 2,747,600 accounts Number of Verified Accounts at month-end August 2026
Exchange Trading Volume financial
"Exchange Trading Volume for a specific period is the total value, based on the underlying asset"
Marketplace Trading Volume financial
"Marketplace Trading Volume for a specific period is the total value, based on the underlying asset"
Total number or value of shares, contracts or other units bought and sold on a particular trading venue during a set period, usually a day. It shows how much activity and interest a marketplace or a specific security is drawing — like measuring foot traffic through a store — and helps investors judge how easy it will be to trade, how reliable price moves are, and whether a stock may swing wildly on small orders.
Customer Assets financial
"Customer Assets are cryptocurrencies held for customers + fiat currency deposited by customers"
Verified Accounts regulatory
"Verified Accounts are all accounts that have been opened after the account owner completes all application procedures"
crypto-as-a-service technical
"a substantial number of the new Verified Accounts may result from "crypto-as-a-service" relationships"
Crypto-as-a-service is a package of ready-made digital currency tools and infrastructure that lets businesses add cryptocurrency features—like wallets, payments, token issuance, and custody—without building the technology themselves. For investors, it matters because it can speed a company's move into the crypto market, lower technical risk and upfront costs, and provide a clearer path to new revenue streams or regulatory exposure—much like leasing a storefront instead of constructing one from scratch.
know your customer regulatory
"including "know your customer" or "KYC""
Know your customer (often called KYC) is the routine process financial firms use to verify who their clients are and assess the risk they pose, by collecting identity documents, background information and transaction history. For investors, KYC matters because it determines whether you can open or maintain accounts, how quickly you can trade, and how a firm manages regulatory and fraud risk—similar to a landlord checking references before renting to someone.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Coincheck Group (CNCK) disclose in this Form 6-K?
The filing presents preliminary monthly metrics for Coincheck, Inc. from September 2025 to August 2026, including Exchange Trading Volume, Marketplace Trading Volume, Customer Assets and the Number of Verified Accounts, with explanatory notes on how each metric is defined and calculated.

How did Coincheck (CNCK) Exchange Trading Volume change over the 12 months disclosed?
Exchange Trading Volume was 243,278 million yen in September 2025, rose to a high of 461,342 million yen in October 2025, then was generally lower through August 2026, when it was 203,417 million yen, based on the preliminary data provided.

What trend is shown in Coincheck (CNCK) Customer Assets during this period?
Customer Assets were 1,189,219 million yen in September 2025, declined to 631,633 million yen by June 2026, then increased again to 830,397 million yen by August 2026. Customer Assets comprise customer cryptocurrencies plus fiat deposits and exclude NFTs.

How did the Number of Verified Accounts at Coincheck (CNCK) change?
Verified Accounts grew from 2,421,080 at the end of September 2025 to 2,747,600 at the end of August 2026. Verified Accounts include opened accounts that have completed application and KYC procedures, net of closed accounts.

What are Coincheck (CNCK) Marketplace Trading Volumes and how did they evolve?
Marketplace Trading Volume was 26,358 million yen in September 2025 and 13,803 million yen in August 2026. The company notes its revenue has historically been derived primarily from transactions on this marketplace platform business.

What does Coincheck (CNCK) say about crypto-as-a-service accounts?
The company states that beginning in June 2026, a substantial number of new Verified Accounts may result from “crypto-as-a-service” relationships with third parties, and those third parties receive a significant portion of the fee revenue generated by such accounts.

AI-generated analysis. How Rhea-AI works. Not financial advice.

Form 6-K: How Foreign Companies Report to the SEC →
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NO 
 
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
 
FORM 6-K
 
REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934
 
For the month of September 2026
 
Commission File Number: 001-42438
 
COINCHECK GROUP N.V.
(Translation of registrant’s name into English)
 
Nieuwezijds Voorburgwal 162
1012 SJ Amsterdam
The Netherlands
 
(Address of principal executive offices)
 
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F: 
Form 20-F ☒     Form 40-F ☐
 
 
 
 
 

 
Coincheck Group N.V. (“Coincheck Group”) is providing the below update for Coincheck, Inc. (“Coincheck”). This information will also be posted at https://coincheck.com. Coincheck Group (“CNCK” and “CNCKW”) is a public limited liability company and the holding company for Coincheck. Coincheck operates one of the largest multi-cryptocurrency marketplaces and crypto asset exchanges in Japan and is regulated by the Japan Financial Services Agency. Coincheck provides Marketplace and Exchange platforms on which diverse cryptocurrencies, including Bitcoin and Ethereum, are held and exchanged as well as other retail-focused crypto services.
Coincheck Group uses its website (https://www.coincheckgroup.com/) to distribute company information and makes available free of charge a variety of information for investors, including its filings with the Securities and Exchange Commission (“SEC”), as soon as reasonably practicable after electronically filing that material with, or furnishing it to, the SEC. The information that Coincheck Group posts on its website may be deemed material. Accordingly, investors should monitor Coincheck Group’s website, in addition to following its press releases, filings with the SEC, and public conference calls and webcasts. In addition, investors may opt in to automatically receive email alerts and other information about Coincheck Group when enrolling their email address by visiting the “Email Alerts” section of the Coincheck Group website. Coincheck Group does not incorporate the information contained on, or accessible through, Coincheck Group’s website, Coincheck’s website or related social media channels into this Report on Form 6-K.


Monthly Disclosure
Coincheck, Inc. is reporting the following preliminary monthly disclosure information for the past twelve months. The preliminary numbers in the tables below are based on currently available information. These preliminary estimates have not been audited by any independent registered public accountants, are subject to update and should not be extrapolated for future periods. 
 
Sep. 2025
Oct. 2025
Nov. 2025
Dec. 2025
Jan. 2026
Feb. 2026
Exchange Trading Volume (Million yen)
243,278 
461,342 
415,621 
332,623 
298,398 
295,094 
Marketplace Trading Volume (Million yen)
26,358 
35,996 
29,023 
22,651 
25,768 
24,143 
Customer Assets (Million yen)
1,189,219 
1,177,426 
1,005,469 
948,533 
854,339 
695,445 
Number of Verified Accounts
2,421,080 
2,442,923 
2,460,621 
2,475,345 
2,498,597 
2,513,639 
 
 
Mar. 2026
Apr. 2026
May. 2026
Jun. 2026
Jul. 2026
Aug. 2026
Exchange Trading Volume (Million yen)
324,961 
171,122 
129,229 
197,447 
156,294 
203,417 
Marketplace Trading Volume (Million yen)
18,814 
21,603 
16,790 
20,709 
15,522 
13,803 
Customer Assets (Million yen)
728,051 
796,470 
773,103 
631,633 
664,014 
830,397 
Number of Verified Accounts
2,527,772 
2,538,851 
2,547,147 
2,624,858 
2,674,981 
2,747,600 

Notes 
●Exchange Trading Volume for a specific period is the total value, based on the underlying asset, of all transactions completed through Coincheck’s exchange platform. Coincheck’s exchange platform facilitates buy and sell transactions directly between two parties (a buyer and a seller) for which, generally, Coincheck charges no fee. Coincheck sometimes is a buyer on the exchange platform to help support transaction activity on the marketplace platform.
●Marketplace Trading Volume for a specific period is the total value, based on the underlying asset, of all transactions completed through Coincheck’s marketplace platform business. Historically, Coincheck’s total revenue has been derived primarily from transactions on Coincheck’s marketplace platform business. For additional details, please see Coincheck Group N.V.’s filings with the U.S. Securities and Exchange Commission.
●Customer Assets and Number of Verified Accounts correspond to figures as of the end of each month. Verified Accounts are all accounts that have been opened after the account owner completes all application procedures (including “know your customer” or “KYC”), after subtracting therefrom the total number of closed accounts.
●Customer Assets are cryptocurrencies held for customers + fiat currency deposited by customers. Customer Assets do not include non-fungible tokens (NFTs).
●Prior monthly numbers, which are generally preliminary at the time of initial publication, may have been updated by immaterial amounts.
●Beginning June 2026, a substantial number of the new Verified Accounts may result from "crypto-as-a-service" relationships with third parties who receive a significant portion of the fee revenue generated by such accounts.
 
 



SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
COINCHECK GROUP N.V.
Date: September 02, 2026
By:
/s/ Jason Sandberg
Name: 
Jason Sandberg
Title:
Chief Financial Officer

Source: View Original Filing on SEC EDGAR

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