Consolidated Statements of Changes in Net Assets	9 Months Ended
	Dec. 31, 2025 USD ($)
F-STE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	2,943,468
Net increase in net assets resulting from capital activity	2,943,468
Net investment loss	(67,685)
Net change in unrealized appreciation (depreciation)	475,755
Net increase in net assets resulting from operations	408,070
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(116,275)
Balance	3,235,263
F-STE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	2,941,827
Distributions declared	(495)	[1]
Net increase in net assets resulting from capital activity	2,941,332
Net investment loss	(67,941)
Net change in unrealized appreciation (depreciation)	474,183
Net increase in net assets resulting from operations	406,242
Accrued service fees	(116,275)
Balance	3,231,299
F-DTE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	10,002,750
Net increase in net assets resulting from capital activity	10,002,750
Net investment loss	(478,966)
Net change in unrealized appreciation (depreciation)	3,447,986
Net increase in net assets resulting from operations	2,969,020
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(118,470)
Balance	12,853,300
F-DTE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	10,002,500
Distributions declared	(3,000)	[1]
Net increase in net assets resulting from capital activity	9,999,500
Net investment loss	(463,359)
Net change in unrealized appreciation (depreciation)	3,460,330
Net increase in net assets resulting from operations	2,996,971
Accrued service fees	(118,470)
Balance	12,878,001
F-ITE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	1,075,750
Net increase in net assets resulting from capital activity	1,075,750
Net investment loss	(37,859)
Net change in unrealized appreciation (depreciation)	281,474
Net increase in net assets resulting from operations	243,615
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II
Balance	1,319,365
F-ITE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	1,075,380
Distributions declared	(279)	[1]
Net increase in net assets resulting from capital activity	1,075,101
Net investment loss	(36,569)
Net change in unrealized appreciation (depreciation)	281,156
Net increase in net assets resulting from operations	244,587
Accrued service fees
Balance	1,319,688
F-JTE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	15,450,032
Net increase in net assets resulting from capital activity	15,450,032
Net investment loss	(475,429)
Net change in unrealized appreciation (depreciation)	3,549,296
Net increase in net assets resulting from operations	3,073,867
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(356,631)
Balance	18,167,268
F-JTE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	15,447,123
Distributions declared	(3,722)	[1]
Net increase in net assets resulting from capital activity	15,443,401
Net investment loss	(467,574)
Net change in unrealized appreciation (depreciation)	3,539,485
Net increase in net assets resulting from operations	3,071,911
Accrued service fees	(356,632)
Balance	18,158,680
STE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	2,750
Net increase in net assets resulting from capital activity	2,750
Net investment loss	(129)
Net change in unrealized appreciation (depreciation)	942
Net increase in net assets resulting from operations	813
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(101)
Balance	3,462
STE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	2,500
Distributions declared	(1)	[1]
Net increase in net assets resulting from capital activity	2,499
Net investment loss	(127)
Net change in unrealized appreciation (depreciation)	865
Net increase in net assets resulting from operations	738
Accrued service fees	(101)
Balance	3,136
DTE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	2,750
Net increase in net assets resulting from capital activity	2,750
Net investment loss	(126)
Net change in unrealized appreciation (depreciation)	943
Net increase in net assets resulting from operations	817
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(30)
Balance	3,537
DTE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	2,500
Distributions declared	(1)	[1]
Net increase in net assets resulting from capital activity	2,499
Net investment loss	(123)
Net change in unrealized appreciation (depreciation)	866
Net increase in net assets resulting from operations	743
Accrued service fees	(30)
Balance	3,212
ITE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	2,750
Net increase in net assets resulting from capital activity	2,750
Net investment loss	(125)
Net change in unrealized appreciation (depreciation)	943
Net increase in net assets resulting from operations	818
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II
Balance	3,568
ITE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	2,500
Distributions declared	(1)	[1]
Net increase in net assets resulting from capital activity	2,499
Net investment loss	(121)
Net change in unrealized appreciation (depreciation)	865
Net increase in net assets resulting from operations	744
Accrued service fees
Balance	3,243
ETE Shares | ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	2,000
Net increase in net assets resulting from capital activity	2,000
Net investment loss	(7)
Net change in unrealized appreciation (depreciation)	676
Net increase in net assets resulting from operations	669
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II
Balance	2,669
ETE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	1,000
Distributions declared		[1]
Net increase in net assets resulting from capital activity	1,000
Net investment loss	(5)
Net change in unrealized appreciation (depreciation)	349
Net increase in net assets resulting from operations	344
Accrued service fees
Balance	1,344
JTE Shares | ISQ Open Infrastructure Company LLC - Series I
Consideration from the issuance of shares	2,750
Net increase in net assets resulting from capital activity	2,750
Net investment loss	(128)
Net change in unrealized appreciation (depreciation)	943
Net increase in net assets resulting from operations	815
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(59)
Balance	3,506
JTE Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	2,500
Distributions declared	(1)	[1]
Net increase in net assets resulting from capital activity	2,499
Net investment loss	(124)
Net change in unrealized appreciation (depreciation)	864
Net increase in net assets resulting from operations	740
Accrued service fees	(59)
Balance	3,180
E Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	9,641,438
Distributions declared		[1]
Net increase in net assets resulting from capital activity	9,641,438
Net investment loss	(45,681)
Net change in unrealized appreciation (depreciation)	3,089,603
Net increase in net assets resulting from operations	3,043,922
Accrued service fees
Balance	12,685,360
F-S Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	12,031,031
Distributions declared		[1]
Net increase in net assets resulting from capital activity	12,031,031
Net investment loss	(327,554)
Net change in unrealized appreciation (depreciation)	2,284,827
Net increase in net assets resulting from operations	1,957,273
Accrued service fees	(474,844)
Balance	13,513,460
F-I Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	5,377,500
Distributions declared		[1]
Net increase in net assets resulting from capital activity	5,377,500
Net investment loss	(191,558)
Net change in unrealized appreciation (depreciation)	1,474,107
Net increase in net assets resulting from operations	1,282,549
Accrued service fees
Balance	6,660,049
F-J Shares | ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	74,237,719
Distributions declared		[1]
Net increase in net assets resulting from capital activity	74,237,719
Net investment loss	(2,704,496)
Net change in unrealized appreciation (depreciation)	19,903,690
Net increase in net assets resulting from operations	17,199,194
Accrued service fees	(1,739,131)
Balance	89,697,782
ISQ Open Infrastructure Company LLC - Series I
Balance
Consideration from the issuance of shares	29,485,000
Net increase in net assets resulting from capital activity	29,485,000
Net investment loss	(1,060,454)
Net change in unrealized appreciation (depreciation)	7,758,958
Net increase in net assets resulting from operations	6,698,504
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II	(591,566)
Balance	35,591,938
ISQ Open Infrastructure Company LLC - Series II
Balance
Consideration from the issuance of shares	130,765,518
Distributions declared	(7,500)	[1]
Net increase in net assets resulting from capital activity	130,758,018
Net investment loss	(4,305,232)
Net change in unrealized appreciation (depreciation)	34,511,190
Net increase in net assets resulting from operations	30,205,958
Accrued service fees	(2,805,542)
Balance	$ 158,158,434

[1] See Note 7 for additional information.