Financial Highlights (Tables)

12 Months Ended

Dec. 31, 2025

ISQ Open Infrastructure Company LLC - Series I [Member]

Financial Highlights (Tables) [Line Items]

Schedule of Financial Highlights

The following are the financial highlights for period from March 28, 2025 (Funding Date) to December 31, 2025:

	F-STE Shares			F-DTE Shares			F-ITE Shares			F-JTE Shares			STE Shares			DTE Shares			ITE Shares			JTE Shares			ETE Shares
Per Share Data:
Net asset value at beginning of period	$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-
Distributions declared (1)		-			-			-			-			-			-			-			-			-
Proceeds from issuance of shares		25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00
Premium/(Discount) on issuance of shares		0.46			(0.08	)		(0.37	)		(0.22	)		-			0.01			0.01			0.01			-
Service fees		(1.83	)		(0.30	)		-			(0.87	)		(0.92	)		(0.27	)		-			(0.54	)		-
Net investment income (2)		(1.06	)		(1.21	)		(1.17	)		(1.15	)		(1.17	)		(1.15	)		(1.14	)		(1.16	)		(0.09	)
Net realized and unrealized gain/(loss) (3)		7.48			8.71			8.70			8.62			8.56			8.56			8.57			8.56			8.45
Net increase in net assets resulting from operations		6.42			7.50			7.53		$	7.47			7.39			7.41			7.43			7.40			8.36
Net asset value at end of period	$	30.05		$	32.12		$	32.16		$	31.38		$	31.47		$	32.15		$	32.44		$	31.87		$	33.36
Shares outstanding at end of period		107,654			400,110			41,020			578,956			110			110			110			110			80
Weighted average shares outstanding		63,568			395,809			32,342			411,714			110			110			110			110			80
Ratio/Supplemental Data:
Net assets at end of period	$	3,235,263		$	12,853,300		$	1,319,365		$	18,167,268		$	3,462		$	3,537		$	3,568		$	3,506		$	2,669
Not annualized ratio to average net assets (4)(5)(6)
Total expenses before expense support (6)		11.60	%		17.59	%		13.87	%		12.41	%		13.31	%		13.08	%		13.01	%		13.20	%		7.69	%
Total expenses after expense support (6)		5.06	%		5.78	%		5.43	%		5.35	%		4.46	%		4.34	%		4.30	%		4.41	%		0.74	%
Net investment loss (5)(6)		-4.61	%		-5.24	%		-4.94	%		-4.88	%		-4.05	%		-3.93	%		-3.89	%		-4.01	%		-0.32	%
Total return (6)(7)		20.20	%		28.48	%		28.64	%		25.52	%		25.88	%		28.60	%		29.76	%		27.48	%		33.44	%

(1)	The per share data for distributions was derived by using the actual shares outstanding at the date of the relevant transaction (refer to Note 4).
(2)	The per share data was derived by using the weighted average shares outstanding during the applicable period.

(3) The amount shown at this caption is the balancing amount derived from the other figures in the table. The amount shown at this caption for a share outstanding throughout the period may not agree with the change in the aggregate gains and losses in investments for the period because of the timing of sales of Series I shares in relation to fluctuating market value for the portfolio.

(4) Actual results may not be indicative of future results. Additionally, an individual shareholder’s ratio may vary from the ratios presented for a share class as a whole.

(5) The ratios were derived using the simple average net assets during the applicable period.

(6) Not annualized.

(7) The total return is calculated for each share class as the change in the net asset value for such share class during the period plus any distributions per share declared in the period, and assumes any distributions are reinvested in accordance with our distribution reinvestment plan. The Series I performance changes over time and currently may be different than that shown above. Past performance is no guarantee of future results. Investment performance is presented without regard to sales load that may be incurred by Shareholders in the purchase of the Series I shares.

ISQ Open Infrastructure Company LLC - Series II [Member]

Financial Highlights (Tables) [Line Items]

Schedule of Financial Highlights

The following are the financial highlights for period from March 28, 2025 (Funding Date) to December 31, 2025:

	ETE Shares			DTE Shares			ITE Shares			JTE Shares			STE Shares			F-STE Shares			F-ITE Shares			F-JTE Shares			F-DTE Shares			E Shares			F-S Shares			F-I Shares			F-J Shares
Per Share Data:
Net asset value at beginning of period	$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-		$	-
Distributions declared (1)		-			-			-			-			-			-			-			-			-			-			-			-			-
Proceeds from issuance of shares		25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00			25.00
Premium/(Discount) on issuance of shares		0.01			-			(0.01	)		(0.01	)		-			0.91			(0.17	)		0.08			(0.08	)		(0.10	)		0.31			(0.19	)		(0.09	)
Service fees		-			(0.30	)		-			(0.59	)		(1.01	)		(1.85	)		-			(0.87	)		(0.30	)		-			(1.54	)		-			(0.72	)
Net investment loss (2)		(0.13	)		(1.23	)		(1.21	)		(1.24	)		(1.27	)		(1.08	)		(1.14	)		(1.15	)		(1.17	)		(0.13	)		(1.06	)		(1.09	)		(1.12	)
Net realized and unrealized gain/(loss) (3)		8.72			8.65			8.65			8.64			8.64			7.56			8.75			8.67			8.74			8.80			7.41			8.35			8.26
Net increase in net assets resulting from operations		33.60			32.12			32.43		$	31.80			31.36			30.54			32.44			31.73			32.19			33.57			30.12			32.07			31.33
Net asset value at end of period	$	33.60		$	32.12		$	32.43		$	31.80		$	31.36		$	30.54		$	32.44		$	31.73		$	32.19		$	33.57		$	30.12		$	32.07		$	31.33
Shares outstanding at end of period		40			100			100			100			100			105,792			40,677			572,307			400,100			377,933			448,694			207,668			2,862,789
Weighted average shares outstanding		40			100			100			100			100			62,711			32,144			408,021			395,799			351,196			308,316			176,433			2,408,621
Ratio/Supplemental Data:
Net assets at end of period	$	1,344		$	3,212		$	3,243		$	3,180		$	3,136		$	3,231,299		$	1,319,688		$	18,158,680		$	12,878,001		$	12,685,360		$	13,513,460		$	6,660,049		$	89,697,782
Not annualized ratio to average net assets (4)(5)(6)
Total expenses before expense support and after performance participation allocation (6)		6.92	%		10.72	%		10.62	%		10.78	%		10.92	%		9.40	%		10.83	%		9.91	%		13.31	%		5.98	%		8.52	%		9.01	%		9.26	%
Total expenses after expense support and after performance participation allocation (6)		0.84	%		4.59	%		4.51	%		4.64	%		4.76	%		5.05	%		5.21	%		5.23	%		5.54	%		0.80	%		3.91	%		3.91	%		4.07	%
Total expenses after expense support and before performance participation allocation (6)		0.84	%		1.22	%		1.15	%		1.26	%		1.37	%		1.36	%		1.26	%		1.40	%		1.40	%		0.80	%		1.21	%		0.97	%		1.13	%
Net investment loss (5)(6)		-0.42	%		-4.18	%		-4.11	%		-4.23	%		-4.35	%		-4.60	%		-4.73	%		-4.77	%		-5.00	%		-0.41	%		-3.54	%		-3.53	%		-3.69	%
Total return (6)(7)		34.40	%		28.48	%		29.72	%		27.20	%		25.44	%		22.16	%		29.76	%		26.92	%		28.76	%		34.28	%		20.48	%		28.28	%		25.32	%

(1)	The per share data for distributions was derived by using the actual shares outstanding at the date of the relevant transaction (refer to Note 7).
(2)	The per share data was derived by using the weighted average shares outstanding during the applicable period.
(3)	The amount shown at this caption is the balancing amount derived from the other figures in the table. The amount shown at this caption for a share outstanding throughout the period may not agree with the change in the aggregate gains and losses in investments for the period because of the timing of sales of Series II shares in relation to fluctuating market value for the portfolio.
(4)	Actual results may not be indicative of future results. Additionally, an individual shareholder’s ratio may vary from the ratios presented for a share class as a whole.
(5)	The ratios were derived using the simple average net assets during the applicable period.
(6)	Not annualized.
(7)	The total return is calculated for each share class as the change in the net asset value for such share class during the period plus any distributions per share declared in the period. Amounts are not representative of total return as calculated for purposes of the Performance Participation Allocation as described in Note 6. The Series II performance changes over time and currently may be different than that shown above. Past performance is no guarantee of future results. Investment performance is presented without regard to sales load that may be incurred by Shareholders in the purchase of the Series II shares.