Mizuho discloses 3.5% stake in GraniteShares ETF

Mizuho Financial Group, Inc. filed an amended Schedule 13G to report its beneficial ownership of shares of the GraniteShares 2x Long SMCI Daily ETF, a series of GraniteShares ETF Trust.

Accepted by SEC EDGAR 02/12/2026 - 07:46 AM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Mizuho Financial Group, Inc. filed an amended Schedule 13G to report its beneficial ownership of shares of the GraniteShares 2x Long SMCI Daily ETF, a series of GraniteShares ETF Trust. As of 12/31/2025, Mizuho beneficially owned 334,271 ETF shares, representing 3.5% of the class. It reports sole voting and sole dispositive power over all of these shares and no shared power.

The filing notes that Mizuho Financial Group, Inc. and Mizuho Securities Co., Ltd. may be deemed indirect beneficial owners of equity securities directly held by Rakuten Securities, Inc., an affiliated company accounted for under the equity method. Mizuho certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.

FAQ

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

What stake does Mizuho Financial Group (MFG) report in GraniteShares 2x Long SMCI Daily ETF?

Mizuho Financial Group reports beneficial ownership of 334,271 shares, or 3.5% of the GraniteShares 2x Long SMCI Daily ETF. The filing states Mizuho has sole voting and dispositive power over these shares as of December 31, 2025.

What type of filing did Mizuho Financial Group (MFG) submit for its ETF holdings?

Mizuho Financial Group submitted an Amendment No. 4 to Schedule 13G/A. This is a beneficial ownership report used when securities are held in the ordinary course of business without the purpose of changing or influencing control of the issuer.

Who is the issuer and class of securities in Mizuho Financial Group’s Schedule 13G/A?

The issuer is GraniteShares ETF Trust, and the class is the GraniteShares 2x Long SMCI Daily ETF. The filing identifies the ETF shares by CUSIP 38747R660 and reports Mizuho’s percentage ownership in that class.

Does Mizuho Financial Group (MFG) seek control of GraniteShares ETF Trust through these holdings?

No, Mizuho certifies the securities were acquired and are held in the ordinary course of business. The filing states they were not acquired to change or influence control of the issuer or as part of any control-related transaction.

How are Rakuten Securities, Inc.’s holdings related to Mizuho Financial Group’s reported ownership?

The filing states Mizuho Financial Group and Mizuho Securities may be deemed indirect beneficial owners of securities held by Rakuten Securities, Inc. Rakuten Securities is described as an affiliated company accounted for under the equity method.

What percentage threshold does Mizuho Financial Group (MFG) disclose in this ownership report?

Mizuho discloses ownership of 5 percent or less of the ETF’s outstanding shares. Specifically, it reports beneficial ownership of 3.5% of the GraniteShares 2x Long SMCI Daily ETF as of December 31, 2025.

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

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 4)

GRANITESHARES ETF TRUST

(Name of Issuer)

GraniteShares 2x Long SMCI Daily ETF

(Title of Class of Securities)

38747R660

(CUSIP Number)

12/31/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 38747R660

1

Names of Reporting Persons

Mizuho Financial Group, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

JAPAN

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 334,271.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 334,271.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

334,271.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

3.5 %

12

Type of Reporting Person (See Instructions)

FI

Comment for Type of Reporting Person: Mizuho Financial Group, Inc. and Mizuho Securities, Co., Ltd. may be deemed to be indirect beneficial owners of said equity securities directly held by Rakuten Securities, Inc. which is their affiliated company accounted for the equity method.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: GRANITESHARES ETF TRUST
(b)	Address of issuer's principal executive offices: 250 BROADWAY, 24TH FLOOR NEW YORK, NY 10007
Item 2.
(a)	Name of person filing: Mizuho Financial Group, Inc.
(b)	Address or principal business office or, if none, residence: 1-5-5, Otemachi, Chiyoda-ku, Tokyo, 100-8176, Japan
(c)	Citizenship: Japan
(d)	Title of class of securities: GraniteShares 2x Long SMCI Daily ETF
(e)	CUSIP No.: 38747R660
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
	Parent Holding Company
Item 4.	Ownership
(a)	Amount beneficially owned: 334,271
(b)	Percent of class: 3.5 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 334,271
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 334,271
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Ownership of 5 percent or less of a class
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit A
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11. By signing below I certify that, to the best of my knowledge and belief, the foreign regulatory scheme applicable to Parent Holding Company is substantially comparable to the regulatory scheme applicable to the functionally equivalent U.S. institution(s). I also undertake to furnish to the Commission staff, upon request, information that would otherwise be disclosed in a Schedule 13D.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Mizuho Financial Group, Inc.

Signature:	/s/ Takahiro Katsura
Name/Title:	Takahiro Katsura, Managing Director, Global Corporate Function Coordination Department
Date:	02/12/2026