Exhibit 99.1

United States Commodity Index Funds Trust 

United States Commodity Index Fund 

Monthly Account Statement 

For the Month Ended January 31, 2024

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	1,163,856
Unrealized Gain (Loss) on Market Value of Commodity Futures		3,752,947
Dividend Income		250,590
Interest Income		484,586
ETF Transaction Fees		1,400
Total Income (Loss)	$	5,653,379
Expenses
Management Fees	$	111,514
Professional Fees		34,070
Brokerage Commissions		13,845
Directors' Fees and insurance		8,848
Total Expenses	$	168,277
Net Income (Loss)	$	5,485,102

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 1/1/24	$	169,026,568
Withdrawals (200,000 Shares)		(11,347,885	)
Net Income (Loss)		5,485,102
Net Asset Value End of Month	$	163,163,785
Net Asset Value Per Share (2,800,000 Shares)	$	58.27

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, 2024 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, 2024

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	44,563
Unrealized Gain (Loss) on Market Value of Commodity Futures		528,700
Dividend Income		147,974
Interest Income		413,367
ETF Transaction Fees		1,050
Total Income (Loss)	$	1,135,654
Expenses
Management Fees	$	69,123
Professional Fees		37,514
Brokerage Commissions		499
Directors' Fees and insurance		4,757
Total Expenses	$	111,893
Net Income (Loss)	$	1,023,761

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 1/1/24	$	131,353,342
Additions (200,000 Shares)		4,816,039
Withdrawals (250,000 Shares)		(5,893,709	)
Net Income (Loss)		1,023,761
Net Asset Value End of Month	$	131,299,433
Net Asset Value Per Share (5,400,000 Shares)	$	24.31

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, 2024 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, 2024

Statement of Income (Loss)
Income
Realized Trading Gain (Loss) on Commodity Futures	$	1,208,419
Unrealized Gain (Loss) on Market Value of Commodity Futures		4,281,647
Dividend Income		398,564
Interest Income		897,953
ETF Transaction Fees		2,450
Total Income (Loss)	$	6,789,033
Expenses
Management Fees	$	180,637
Professional Fees		71,584
Brokerage Commissions		14,344
Non-interested Directors' Fees and Expenses		13,605
Total Expenses	$	280,170
Net Income (Loss)	$	6,508,863

Statement of Changes in Net Asset Value
Net Asset Value Beginning of Month 1/1/24	$	300,379,910
Additions (200,000 Shares)		4,816,039
Withdrawals (450,000 Shares)		(17,241,594	)
Net Income (Loss)		6,508,863
Net Asset Value End of Month	$	294,463,218

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, 2024 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