[8-K] United States Commodity Index Funds Trust Reports Material Event

Rhea-AI Filing Summary

United States Commodity Index Funds Trust reported strong January 2026 results for its commodity funds. United States Commodity Index Fund (USCI) generated net income of $24.25 million, ending the month with net asset value of $299.1 million, or $84.26 per share.

United States Copper Index Fund (CPER) recorded net income of $20.05 million and finished January with net asset value of $882.79 million, or $36.40 per share. For the trust as a whole, net income was $44.29 million, lifting total net asset value to $1.18 billion, mainly driven by realized and unrealized gains on commodity futures.

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UNITED STATES

SECURITIES AND EXCHANGE COMMISION

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): February 27, 2026

UNITED STATES COMMODITY INDEX FUNDS TRUST

(Exact name of registrant as specified in its charter)

Delaware	001-34833	27-1537655
(State or other jurisdiction	(Commission File Number)	(I.R.S. Employer
of incorporation)		Identification No.)

	1850 Mt. Diablo Boulevard, Suite 640
	Walnut Creek, California 94596
(510) 522-9600	(Address of principal executive offices) (Zip Code)
Registrant's telephone number, including area code

Not Applicable

(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 communication 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))

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. ¨

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 United States Commodity Index Fund		USCI		NYSE Arca, Inc.
Shares of United States Copper Index Fund		CPER		NYSE Arca, Inc.

Item 7.01. Regulation FD Disclosure.

On February 27, 2026, United States Commodity Index Funds Trust (the “Registrant”), and United States Commodity Index Fund (“USCI”) and United States Copper Index Fund (“CPER”), each a series of the Registrant, issued their monthly account statements for the month ended January 31, 2026, which are presented in the form of Statements of Income (Loss) and Statements of Changes in Net Asset Value, as required pursuant to Rule 4.22 under the Commodity Exchange Act. A copy of the monthly account statements is furnished as Exhibit 99.1 to this Current Report on Form 8-K and also can be found on USCI’s and CPER’s website at www.uscfinvestments.com. The information furnished in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in any such filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit 99.1

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.

		UNITED STATES COMMODITY INDEX FUNDS TRUST
		By:	United States Commodity Funds LLC, its sponsor
Date:	February 27, 2026	By:	/s/ Stuart P. Crumbaugh
		Name:	Stuart P. Crumbaugh
		Title:	Chief Financial Officer

Exhibit 99.1

United States Commodity Index Funds Trust

United States Commodity Index Fund

Monthly Account Statement

For the Month Ended January 31, 2026

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures		$	14,966,927
Unrealized Gain (Loss) on Market Value of Commodity Futures			8,654,114
Dividend Income			662,252
Interest Income			219,873
ETF Transaction Fees			1,400
Total Income (Loss)		$	24,504,566
Expenses
Management Fees		$	197,284
Professional Fees			29,622
Brokerage Commissions			20,474
Directors' Fees and insurance			11,100
Total Expenses		$	258,480
Net Income (Loss)		$	24,246,086

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 1/1/26		$	278,945,743
Additions (100,000 Shares)			7,830,014
Withdrawals (150,000 Shares)			(11,899,365	)
Net Income (Loss)			24,246,086
Net Asset Value End of Month		$	299,122,478
Net Asset Value Per Share (3,550,000 Shares)		$	84.26

To the Shareholders of United States Commodity Index Fund:

Pursuant to Rule 4.22(h) under the Commodity Exchange Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for the month ended January 31, 2026 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, Sponsor of United States Commodity Index Fund

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

United States Commodity Index Funds Trust

United States Copper Index Fund

Monthly Account Statement

For the Month Ended January 31, 2026

Statement of Income (Loss)
Income
Unrealized Gain (Loss) on Market Value of Commodity Futures		$	18,626,923
Dividend Income			1,067,845
Interest Income			722,432
ETF Transaction Fees			10,150
Total Income (Loss)		$	20,427,350
Expenses
Management Fees		$	321,484
Professional Fees			39,307
Brokerage Commissions			7,537
Directors' Fees and insurance			12,796
Total Expenses		$	381,124
Net Income (Loss)		$	20,046,226

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 1/1/26		$	456,411,715
Additions (11,150,000 Shares)			406,329,605
Net Income (Loss)			20,046,226
Net Asset Value End of Month		$	882,787,546
Net Asset Value Per Share (24,250,000 Shares)		$	36.40

To the Shareholders of United States Copper Index Fund:

Pursuant to Rule 4.22(h) under the Commodity Exchange Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for the month ended January 31, 2026 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, Sponsor of United States Copper Index Fund

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

United States Commodity Index Funds Trust

Monthly Account Statement

For the Month Ended January 31, 2026

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures		$	14,966,927
Unrealized Gain (Loss) on Market Value of Commodity Futures			27,281,037
Dividend Income			1,730,097
Interest Income			942,305
ETF Transaction Fees			11,550
Total Income (Loss)		$	44,931,916
Expenses
Management Fees		$	518,768
Professional Fees			68,929
Brokerage Commissions			28,011
Directors' Fees and Expenses			23,896
Total Expenses		$	639,604
Net Income (Loss)		$	44,292,312

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 1/1/26		$	735,357,458
Additions (11,250,000 Shares)			414,159,619
Withdrawals (150,000 Shares)			(11,899,365	)
Net Income (Loss)			44,292,312
Net Asset Value End of Month		$	1,181,910,024

To the Shareholders of the Series of the United States Commodity Index Funds Trust:

Pursuant to Rule 4.22(h) under the Commodity Exchange Act, the undersigned represents that, to the best of his knowledge and belief, the information contained in the Account Statement for the month ended January 31, 2026 is accurate and complete.

/s/ Stuart P. Crumbaugh

Stuart P. Crumbaugh

Chief Financial Officer

United States Commodity Funds LLC, Sponsor of United States Commodity Index Funds Trust

United States Commodity Funds LLC

1850 Mt. Diablo Boulevard, Suite 640

Walnut Creek, CA 94596

FAQ

How did United States Copper Index Fund (CPER) perform in January 2026?

United States Copper Index Fund (CPER) earned net income of $20.05 million in January 2026. Net asset value rose to $882.79 million, or $36.40 per share, supported mainly by $18.63 million in unrealized gains on copper-related commodity futures.

What were the January 2026 results for United States Commodity Index Fund (USCI)?

United States Commodity Index Fund (USCI) reported net income of $24.25 million for January 2026. Net asset value ended the month at $299.12 million, or $84.26 per share, driven by $14.97 million realized and $8.65 million unrealized gains on commodity futures.

What was the overall January 2026 performance of United States Commodity Index Funds Trust?

The trust posted net income of $44.29 million for January 2026. Total net asset value increased to $1.18 billion, reflecting combined realized and unrealized gains on commodity futures across its series, along with dividend and interest income that more than offset management and other operating expenses.

How did net asset values per share change for USCI and CPER in January 2026?

At January 31, 2026, USCI reported net asset value per share of $84.26 based on 3,550,000 shares. CPER reported net asset value per share of $36.40 based on 24,250,000 shares, reflecting the impact of income, market movements in commodity futures, and share creation activity.

What were the main sources of income for the United States Commodity Index Funds in January 2026?

Income primarily came from realized and unrealized gains on commodity futures, supplemented by dividend and interest income. For the trust, total income was $44.93 million, far exceeding total expenses of $639,604, resulting in net income of $44.29 million for the month.

Who certified the accuracy of the January 2026 monthly account statements for the funds?

The account statements were certified under Rule 4.22(h) by Stuart P. Crumbaugh, Chief Financial Officer of United States Commodity Funds LLC, the sponsor. He represented that, to the best of his knowledge and belief, the January 31, 2026 information is accurate and complete.

Filing Exhibits & Attachments

5 documents

Press Releases

• EX-99.1 EXHIBIT 99.1 46.2 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.7 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 26.3 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 35.8 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 25.0 KB