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Ark 21Shares Bitcoin ETF moves to FTSE index

Ark 21Shares Bitcoin ETF (ARKB) reports several contractual and structural updates.

(Moderate)
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

Ark 21Shares Bitcoin ETF (ARKB) reports several contractual and structural updates. On August 20, 2026, 21Shares US LLC, as Sponsor, entered into a Benchmark Licensing Agreement with FTSE International Limited, giving a non-exclusive worldwide license to use the FTSE Bitcoin Index as the fund’s pricing benchmark.

Beginning August 27, 2026, the Trust will value its Shares and calculate net asset value by reference to the FTSE Bitcoin Index instead of the CME CF Bitcoin Reference Rate – New York Variant. The FTSE license has an initial term of one year and automatically renews for successive one-year periods unless terminated under its terms. On August 26, 2026, the Trust also amended the Sponsor Agreement to change Sponsor Fee payments from weekly in arrears to at least quarterly in arrears, payable in bitcoin. The same day, the Sponsor and CSC Delaware Trust Company entered into a Second Amended and Restated Trust Agreement to reflect the new benchmark, the revised Sponsor Fee timing, and other technical and clarifying revisions, which are stated not to materially impact the rights of the Trust or its shareholders.

Positive

  • None.

Negative

  • None.
Item 1.01 Entry into a Material Definitive Agreement Business
The company signed a significant contract such as a merger agreement, credit facility, or major partnership.
Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year Governance
The company amended its charter documents, bylaws, or changed its fiscal year.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, or exhibit attachments filed with this report.
Benchmark change effective date August 27, 2026 Date when the Trust will begin valuing Shares using the FTSE Bitcoin Index
Benchmark Licensing Agreement date August 20, 2026 Date the Sponsor entered into the Benchmark Licensing Agreement with FTSE
Trust Agreement date August 26, 2026 Date of the Second Amended and Restated Trust Agreement
Benchmark license initial term One-year initial term Term of the FTSE Benchmark Licensing Agreement before automatic one-year renewals
Sponsor Fee payment frequency At least quarterly in arrears Revised timing of Sponsor Fee payments, payable in bitcoin
Benchmark Licensing Agreement financial
"entered into a licensing agreement (the “Benchmark Licensing Agreement”)"
FTSE Bitcoin Index financial
"use the FTSE Bitcoin Index (the “Pricing Benchmark”)"
Pricing Benchmark financial
"use the FTSE Bitcoin Index (the “Pricing Benchmark”)"
Sponsor Fee financial
"timing of payment of the sponsor fee the Sponsor receives from the Trust"
Second Amended and Restated Trust Agreement regulatory
"entered into a Second Amended and Restated Trust Agreement"

FAQ

What benchmark index will ARKB use to value its bitcoin holdings?

The Trust will use the FTSE Bitcoin Index as its pricing benchmark. Starting August 27, 2026, it will value Shares and calculate net asset value by reference to this index instead of the CME CF Bitcoin Reference Rate – New York Variant.

When does Ark 21Shares Bitcoin ETF (ARKB) switch to the FTSE Bitcoin Index?

ARK 21Shares Bitcoin ETF will begin using the FTSE Bitcoin Index to value its Shares and calculate net asset value on August 27, 2026, replacing the CME CF Bitcoin Reference Rate – New York Variant as its pricing benchmark.

What is the term of the new Benchmark Licensing Agreement for ARKB?

The Benchmark Licensing Agreement with FTSE has a one-year initial term and will automatically renew for successive one-year periods, unless it is terminated pursuant to its terms. It provides a non-exclusive, non-transferable, non-sub-licensable, worldwide license to use the FTSE Bitcoin Index.

How did ARKB change the timing of the Sponsor Fee payments?

Under Amendment No. 1 to the Sponsor Agreement dated August 26, 2026, the Trust changed Sponsor Fee payments from weekly in arrears to at least quarterly in arrears. These fees remain payable in bitcoin as compensation for the Sponsor’s services.

What does the Second Amended and Restated Trust Agreement change for ARKB?

The Second Amended and Restated Trust Agreement dated August 26, 2026 reflects use of the FTSE Bitcoin Index, the revised Sponsor Fee payment timing, and other ministerial, technical, conforming and clarifying revisions, which are stated not to materially impact the rights of the Trust or its shareholders.

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false --12-31 0001869699 0001869699 2026-08-20 2026-08-20 iso4217:USD xbrli:shares iso4217:USD xbrli:shares

 

 

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported): August 20, 2026

 

ARK 21SHARES BITCOIN ETF

(Exact name of registrant as specified in its charter)

 

Delaware   001-41910   87-6497023
(State or other jurisdiction
of incorporation)
  (Commission File Number)   (IRS Employer
Identification No.)

 

158 W. 27th Street    
New York, New York   10001
(Address of principal executive offices)   (zip code)

 

Registrant’s telephone number, including area code: (646) 370-6016

 

 

(Former Name or Former Address, if Changed Since Last Report.)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Shares of Beneficial Interest of ARK 21Shares Bitcoin ETF   ARKB   Cboe BZX Exchange, Inc.

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

 

 

 

 

 

 

Item 1.01 Entry into a Material Definitive Agreement.

 

Benchmark Licensing Agreement

 

On August 20, 2026, 21Shares US LLC (the “Sponsor”) entered into a licensing agreement (the “Benchmark Licensing Agreement”) with FTSE International Limited (“FTSE” or the “Benchmark Provider”). Entry into the Benchmark Licensing Agreement follows the Sponsor’s notice, provided on June 30, 2026 and previously disclosed, of the termination, effective August 31, 2026, of the Sponsor’s licensing agreement with CF Benchmarks Ltd. relating to the use of the CME CF Bitcoin Reference Rate - New York Variant. Pursuant to the Benchmark Licensing Agreement, FTSE will provide each of the Sponsor, ARK 21Shares Bitcoin ETF (the “Trust”), and their affiliates a non-exclusive, non-transferable, non-sub-licensable, worldwide license to access, view and use the FTSE Bitcoin Index (the “Pricing Benchmark”) to develop, create, calculate, settle, maintain or support and market the Trust. Beginning August 27, 2026, the Trust will value its shares of beneficial interest (“Shares”) and calculate its net asset value by reference to the Pricing Benchmark in place of the CME CF Bitcoin Reference Rate - New York Variant. Such license is expected to have a one-year initial term and will automatically be renewed for successive one-year periods, unless terminated pursuant to its terms.

 

FTSE is a company incorporated and registered in England, and its principal offices are located at 10 Paternoster Square, London, EC4M 7LS, United Kingdom. FTSE is experienced in calculating and administering digital asset indices. FTSE is unaffiliated with the Sponsor.

 

Amendment No. 1 to the Sponsor Agreement

 

On August 26, 2026, the Trust entered into Amendment No. 1 to the Sponsor Agreement, by and between the Trust and the Sponsor (“Amendment No. 1 to the Sponsor Agreement”), to change the timing of payment of the sponsor fee the Sponsor receives from the Trust as compensation for the Sponsor’s services rendered to the Trust (the “Sponsor Fee”) from weekly in arrears to at least quarterly in arrears, in each case payable in bitcoin.

 

The foregoing descriptions of the Benchmark Licensing Agreement and Amendment No 1 to the Sponsor Agreement are summaries, do not purport to be complete, and are qualified in their entirety by reference to the full text of the Benchmark Licensing Agreement and Amendment No. 1 to the Sponsor Agreement, copies of which are filed as Exhibits 10.1 and 10.2 hereto, respectively, and are incorporated by reference herein.

 

Item 5.03 Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.

 

On August 26, 2026, the Sponsor and CSC Delaware Trust Company, the Trustee of the Trust, entered into a Second Amended and Restated Trust Agreement (the “Trust Agreement”). The Trust Agreement made changes to the Amended and Restated Trust Agreement to reflect (i) the Trust’s use of the FTSE Bitcoin Index in place of the CME CF Bitcoin Reference Rate - New York Variant, (ii) the change in timing of payment of the Sponsor Fee and (iii) various other ministerial, technical, conforming and clarifying revisions, none of which materially impact the rights of the Trust or holders of Shares. A copy of the Trust Agreement is filed as Exhibit 3.1 hereto.

 

Item 9.01 Financial Statements and Exhibits.

 

3.1   Second Amended and Restated Trust Agreement, dated as of August 26, 2026.
10.1†   Benchmark Licensing Agreement, dated as of August 20, 2026, between the Sponsor and FTSE.
10.2   Amendment No. 1 to the Sponsor Agreement, dated as of August 26, 2026, between the Trust and the Sponsor.
104   Cover Page Interactive Data File (embedded within the Inline XBRL document).

 

Certain portions of this exhibit have been omitted in accordance with Item 601(b)(10)(iv) of Regulation S-K because the omitted information is (i) not material and (ii) the registrant customarily and actually treats that information as private or confidential. The registrant agrees to furnish supplementally an unredacted copy of the exhibit to the Securities and Exchange Commission upon its request.

 

1

 

 

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 hereunto duly authorized.

 

Dated: August 26, 2026 ARK 21SHARES BITCOIN ETF
   
  21Shares US LLC, as Sponsor of ARK
21Shares Bitcoin ETF
   
  By: /s/ Duncan Moir
  Name: Duncan Moir
  Title: President

 

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Filing Exhibits & Attachments

6 documents