United States Commodity Index Funds Trust (CPER) posts May 2026 NAV and income details

Rhea-AI Filing Summary

United States Commodity Index Funds Trust filed an update furnishing May 2026 monthly account statements for its United States Commodity Index Fund (USCI) and United States Copper Index Fund (CPER).

USCI reported a net loss of $7.78 million, driven mainly by an unrealized loss of $12.14 million on commodity futures. Net asset value (NAV) decreased to $371.24 million, with NAV per share of $97.69 on 3,800,000 shares.

CPER recorded net income of $48.37 million, supported by an unrealized gain of $44.38 million on commodity futures, and ended the month with NAV of $812.06 million and NAV per share of about $38.85 on 20,900,000 shares. For the overall trust, net income for the month was $40.59 million and ending NAV was $1.18 billion.

8-K Event Classification

2 items: 7.01, 9.01

2 items

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Key Figures

USCI net income (loss): $7,779,536 loss USCI ending NAV: $371,240,829 USCI NAV per share: $97.69 +5 more

8 metrics

USCI net income (loss) $7,779,536 loss Net income (loss) for month ended May 31, 2026

USCI ending NAV $371,240,829 Net asset value end of month May 31, 2026

USCI NAV per share $97.69 3,800,000 shares outstanding at May 31, 2026

CPER net income $48,367,916 Net income for month ended May 31, 2026

CPER ending NAV $812,064,180 Net asset value end of month May 31, 2026

CPER NAV per share $38.85 Net asset value per share, 20,900,000 shares

Trust net income $40,588,380 Net income for United States Commodity Index Funds Trust, May 2026

Trust ending NAV $1,183,305,009 Net asset value end of month May 31, 2026, trust level

Key Terms

Net Asset Value, Realized Trading Gain (Loss) on Commodity Futures, Unrealized Gain (Loss) on Market Value of Commodity Futures, Management Fees, +2 more

6 terms

Net Asset Value financial

"Net Asset Value End of Month | | $ | 371,240,829 |"

Net asset value is the total value of an investment fund's assets minus any liabilities, divided by the number of shares or units outstanding. It represents the per-share worth of the fund, similar to how the value of a house is determined by its total worth after debts are subtracted. Investors use it to gauge the true value of their holdings and to compare different investment options.

Realized Trading Gain (Loss) on Commodity Futures financial

"Realized Trading Gain (Loss) on Commodity Futures | | $ | 3,539,263 |"

Unrealized Gain (Loss) on Market Value of Commodity Futures financial

"Unrealized Gain (Loss) on Market Value of Commodity Futures | | | 44,382,760 |"

Management Fees financial

"Management Fees | | $ | 422,970 |"

Management fees are the regular charges a fund or investment manager takes for running an investment vehicle, covering tasks like selecting assets, monitoring portfolios and handling paperwork. For investors, these fees reduce returns over time much like an ongoing subscription cuts into your monthly budget—so lower fees or clearer value from the manager can meaningfully affect net gains and long-term performance.

Rule 4.22 regulatory

"presented in the form of Statements of Income (Loss)... as required pursuant to Rule 4.22"

Regulation FD regulatory

"Item 7.01. Regulation FD Disclosure."

Regulation FD is a rule that prevents company insiders, like executives, from sharing important information with some people before others get it. It matters because it helps ensure all investors have equal access to key news, making the stock market fairer and reducing chances of insider trading.

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Available on EDGAR 06/29/2026 - 08:23 AM Accepted by SEC EDGAR 06/29/2026 - 08:22 AM Learn about SEC filing dates

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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): June 29, 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 June 29, 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 May 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:	June 29, 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 May 31, 2026

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures		$	3,539,263
Unrealized Gain (Loss) on Market Value of Commodity Futures			(12,135,759	)
Dividend Income			898,413
Interest Income			239,422
ETF Transaction Fees			700
Total Income (Loss)		$	(7,457,961	)
Expenses
Management Fees		$	261,093
Professional Fees			37,388
Brokerage Commissions			15,495
Directors' Fees and Insurance			7,599
Total Expenses		$	321,575
Net Income (Loss)		$	(7,779,536	)

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 5/1/26		$	378,899,982
Additions (50,000 Shares)			5,049,000
Withdrawals (50,000 Shares)			(4,928,617	)
Net Income (Loss)			(7,779,536	)
Net Asset Value End of Month		$	371,240,829
Net Asset Value Per Share (3,800,000 Shares)		$	97.69

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 May 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 May 31, 2026

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures		$	2,178,787
Unrealized Gain (Loss) on Market Value of Commodity Futures			44,382,760
Dividend Income			1,774,281
Interest Income			516,237
ETF Transaction Fees			4,550
Total Income (Loss)		$	48,856,615
Expenses
Management Fees		$	422,970
Professional Fees			50,616
Brokerage Commissions			1,990
Directors' Fees and Insurance			13,123
Total Expenses		$	488,699
Net Income (Loss)		$	48,367,916

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 5/1/26		$	700,526,921
Additions (2,250,000 Shares)			87,871,608
Withdrawals (650,000 Shares)			(24,702,265	)
Net Income (Loss)			48,367,916
Net Asset Value End of Month		$	812,064,180
Net Asset Value Per Share (20,900,000 Shares)			$   38.8 5

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 May 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 May 31, 2026

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures		$	5,718,050
Unrealized Gain (Loss) on Market Value of Commodity Futures			32,247,001
Dividend Income			2,672,694
Interest Income			755,659
ETF Transaction Fees			5,250
Total Income (Loss)		$	41,398,654
Expenses
Management Fees		$	684,063
Professional Fees			88,004
Brokerage Commissions			17,485
Directors' Fees and Insurance			20,722
Total Expenses		$	810,274
Net Income (Loss)		$	40,588,380

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 5/1/26		$	1,079,426,903
Additions (2,300,000 Shares)			92,920,608
Withdrawals (700,000 Shares)			(29,630,882	)
Net Income (Loss)			40,588,380
Net Asset Value End of Month		$	1,183,305,009

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 May 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

What did United States Commodity Index Fund (USCI) report for May 2026?

USCI reported a net loss of $7.78 million for May 2026. Total income was a loss of $7.46 million, mainly from a $12.14 million unrealized futures loss, while expenses were $0.32 million.

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

CPER reported net income of $48.37 million for May 2026. Total income was $48.86 million, driven largely by a $44.38 million unrealized gain on commodity futures, against $0.49 million in expenses.

What were the May 31, 2026 net asset values for USCI and CPER?

At May 31, 2026, USCI had NAV of $371.24 million and NAV per share of $97.69. CPER had NAV of $812.06 million and NAV per share of about $38.85, based on 20,900,000 shares.

How did share activity affect USCI and CPER in May 2026?

For May 2026, USCI had 50,000 share additions and 50,000 share withdrawals, essentially flat net flows. CPER saw 2,250,000 share additions and 650,000 share withdrawals, indicating significant net creations during the month.

What were the overall May 2026 results for United States Commodity Index Funds Trust?

The trust reported net income of $40.59 million for May 2026. Total income was $41.40 million and expenses were $0.81 million, leading to an ending net asset value of about $1.18 billion for the trust.

Is the May 2026 information for USCI and CPER considered filed or furnished?

The May 2026 account statements for USCI and CPER are furnished, not filed, under a Form 8-K. They are provided under Regulation FD and Rule 4.22 and are not subject to Section 18 liability unless specifically incorporated elsewhere.

Filing Exhibits & Attachments

5 documents

Press Releases

• EX-99.1 EXHIBIT 99.1 41.5 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.7 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 26.0 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 35.8 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 24.6 KB