v3.26.1
Consolidated Statements of Changes in Net Assets (Unaudited) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2025
Jun. 30, 2026
ISQ Open Infrastructure Company LLC - Series I | F-STE Shares        
Balance $ 16,000,979     $ 3,235,263
Consideration from the issuance of shares 22,581,250     35,361,933 [1]
Reinvestment of distributions 100,791     113,791
Distributions (419,732)     (631,210)
Net increase (decrease) in net assets resulting from capital activity 22,262,309     34,844,514
Net investment gain (loss) (95,534)     (226,262)
Net change in unrealized appreciation (depreciation) 588,322     966,874
Reallocation of unrealized gain (loss)       356,072
Net increase (decrease) in net assets resulting from operations 492,788     1,096,684
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II (736,317)     (1,156,702)
Balance 38,019,759     38,019,759
ISQ Open Infrastructure Company LLC - Series I | F-DTE Shares        
Balance 12,644,572     12,853,300
Consideration from the issuance of shares    
Reinvestment of distributions 136,454     180,454
Distributions (138,949)     (319,452)
Net increase (decrease) in net assets resulting from capital activity (2,495)     (138,998)
Net investment gain (loss) (67,292)     (262,258)
Net change in unrealized appreciation (depreciation) 217,711     658,147
Reallocation of unrealized gain (loss)       (319,548)
Net increase (decrease) in net assets resulting from operations 150,419     76,341
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II 3,278     5,131
Balance 12,795,774     12,795,774
ISQ Open Infrastructure Company LLC - Series I | F-ITE Shares        
Balance 2,314,163     1,319,365
Consideration from the issuance of shares 2,626,375     3,606,375
Reinvestment of distributions 23,177     28,661
Distributions (52,824)     (83,260)
Net increase (decrease) in net assets resulting from capital activity 2,596,728     3,551,776
Net investment gain (loss) 1,551     (16,382)
Net change in unrealized appreciation (depreciation) 55,352     116,226
Reallocation of unrealized gain (loss)       (3,191)
Net increase (decrease) in net assets resulting from operations 56,903     96,653
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II    
Balance 4,967,794     4,967,794
ISQ Open Infrastructure Company LLC - Series I | F-JTE Shares        
Balance 22,156,259     18,167,268
Consideration from the issuance of shares 1,071,625     5,041,125
Reinvestment of distributions 227,302     293,926
Distributions (256,507)     (567,969)
Net increase (decrease) in net assets resulting from capital activity 1,042,420     4,767,082
Net investment gain (loss) (116,823)     (417,607)
Net change in unrealized appreciation (depreciation) 402,356     1,118,164
Reallocation of unrealized gain (loss)       (87,792)
Net increase (decrease) in net assets resulting from operations 285,533     612,765
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II (10,248)     (73,151)
Balance 23,473,964     23,473,964
ISQ Open Infrastructure Company LLC - Series I | STE Shares        
Balance 3,387     3,462
Consideration from the issuance of shares    
Reinvestment of distributions    
Distributions (38)     (87)
Net increase (decrease) in net assets resulting from capital activity (38)     (87)
Net investment gain (loss) (22)     (80)
Net change in unrealized appreciation (depreciation) 54     163
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 32     3
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II 4     7
Balance 3,385     3,385
ISQ Open Infrastructure Company LLC - Series I | DTE Shares        
Balance 3,464     3,537
Consideration from the issuance of shares    
Reinvestment of distributions    
Distributions (38)     (87)
Net increase (decrease) in net assets resulting from capital activity (38)     (87)
Net investment gain (loss) (21)     (75)
Net change in unrealized appreciation (depreciation) 54     163
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 33     8
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II 1     2
Balance 3,460     3,460
ISQ Open Infrastructure Company LLC - Series I | ITE Shares        
Balance 3,497     3,568
Consideration from the issuance of shares    
Reinvestment of distributions    
Distributions (38)     (87)
Net increase (decrease) in net assets resulting from capital activity (38)     (87)
Net investment gain (loss) (21)     (72)
Net change in unrealized appreciation (depreciation) 54     163
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 33     11
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II    
Balance 3,492     3,492
ISQ Open Infrastructure Company LLC - Series I | JTE Shares        
Balance 3,432     3,506
Consideration from the issuance of shares 2,797,000     2,797,000
Reinvestment of distributions    
Distributions (29,601)     (29,651)
Net increase (decrease) in net assets resulting from capital activity 2,767,399     2,767,349
Net investment gain (loss) (5,705)     (5,760)
Net change in unrealized appreciation (depreciation) 5,939     6,049
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 234     209
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II (53,918)     (53,917)
Balance 2,717,147     2,717,147
ISQ Open Infrastructure Company LLC - Series I | ETE Shares        
Balance 2,651     2,669
Consideration from the issuance of shares    
Reinvestment of distributions 27     36
Distributions (28)     (64)
Net increase (decrease) in net assets resulting from capital activity (1)     (28)
Net investment gain (loss) (5)     (8)
Net change in unrealized appreciation (depreciation) 24     67
Reallocation of unrealized gain (loss)       (31)
Net increase (decrease) in net assets resulting from operations 19     28
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II    
Balance 2,669     2,669
ISQ Open Infrastructure Company LLC - Series I        
Balance 53,132,404 $ 2,000 35,591,938
Consideration from the issuance of shares 29,076,250 2,000 [1] 46,806,433
Reinvestment of distributions 487,751     616,868
Distributions (897,755)   (1,631,867)
Net increase (decrease) in net assets resulting from capital activity 28,666,246 2,000 45,791,434
Net investment gain (loss) (283,872) (928,504)
Net change in unrealized appreciation (depreciation) 1,269,866 2,866,016
Reallocation of unrealized gain (loss)       (54,810)
Net increase (decrease) in net assets resulting from operations 985,994 1,882,702
Accrued service fees      
Accrued service fees allocated from ISQ Open Infrastructure Company LLC - Series II (797,200)   (1,278,630)
Balance 81,987,444 2,000 2,000 81,987,444
ISQ Open Infrastructure Company LLC - Series II | F-STE Shares        
Balance 16,004,763     3,231,299
Consideration from the issuance of shares 22,581,250     35,361,933
Reinvestment of distributions 100,791     113,791
Distributions (444,345)     (658,611)
Net increase (decrease) in net assets resulting from capital activity 22,237,696     34,817,113
Net investment gain (loss) (75,625)     (195,817)
Net change in unrealized appreciation (depreciation) 588,321     966,873
Reallocation of unrealized gain (loss)       356,072
Net increase (decrease) in net assets resulting from operations 512,696     1,127,128
Accrued service fees (736,317)     (1,156,702)
Balance 38,018,838     38,018,838
ISQ Open Infrastructure Company LLC - Series II | F-DTE Shares        
Balance 12,669,163     12,878,001
Consideration from the issuance of shares    
Reinvestment of distributions 136,454     180,454
Distributions (148,523)     (340,341)
Net increase (decrease) in net assets resulting from capital activity (12,069)     (159,887)
Net investment gain (loss) (60,238)     (244,000)
Net change in unrealized appreciation (depreciation) 217,712     658,149
Reallocation of unrealized gain (loss)       (319,548)
Net increase (decrease) in net assets resulting from operations 157,474     94,601
Accrued service fees 3,278     5,131
Balance 12,817,846     12,817,846
ISQ Open Infrastructure Company LLC - Series II | F-ITE Shares        
Balance 2,309,661     1,319,688
Consideration from the issuance of shares 2,626,375     3,606,375
Reinvestment of distributions 23,177     28,661
Distributions (55,092)     (92,112)
Net increase (decrease) in net assets resulting from capital activity 2,594,460     3,542,924
Net investment gain (loss) 3,643     (12,531)
Net change in unrealized appreciation (depreciation) 55,352     116,226
Reallocation of unrealized gain (loss)       (3,191)
Net increase (decrease) in net assets resulting from operations 58,995     100,504
Accrued service fees    
Balance 4,963,116     4,963,116
ISQ Open Infrastructure Company LLC - Series II | F-JTE Shares        
Balance 22,149,653     18,158,680
Consideration from the issuance of shares 1,071,625     5,041,125
Reinvestment of distributions 227,302     293,926
Distributions (274,207)     (602,472)
Net increase (decrease) in net assets resulting from capital activity 1,024,720     4,732,579
Net investment gain (loss) (103,665)     (385,664)
Net change in unrealized appreciation (depreciation) 402,355     1,118,163
Reallocation of unrealized gain (loss)       (87,792)
Net increase (decrease) in net assets resulting from operations 298,690     644,707
Accrued service fees (10,248)     (73,151)
Balance 23,462,815     23,462,815
ISQ Open Infrastructure Company LLC - Series II | STE Shares        
Balance 3,062     3,136
Consideration from the issuance of shares    
Reinvestment of distributions    
Distributions (40)     (92)
Net increase (decrease) in net assets resulting from capital activity (40)     (92)
Net investment gain (loss) (20)     (74)
Net change in unrealized appreciation (depreciation) 54     163
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 34     9
Accrued service fees 4     7
Balance 3,060     3,060
ISQ Open Infrastructure Company LLC - Series II | DTE Shares        
Balance 3,140     3,212
Consideration from the issuance of shares    
Reinvestment of distributions    
Distributions (40)     (92)
Net increase (decrease) in net assets resulting from capital activity (40)     (92)
Net investment gain (loss) (19)     (68)
Net change in unrealized appreciation (depreciation) 54     162
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 35     14
Accrued service fees 1     2
Balance 3,136     3,136
ISQ Open Infrastructure Company LLC - Series II | ITE Shares        
Balance 3,173     3,243
Consideration from the issuance of shares    
Reinvestment of distributions    
Distributions (40)     (92)
Net increase (decrease) in net assets resulting from capital activity (40)     (92)
Net investment gain (loss) (19)     (66)
Net change in unrealized appreciation (depreciation) 54     163
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 35     17
Accrued service fees    
Balance 3,168     3,168
ISQ Open Infrastructure Company LLC - Series II | JTE Shares        
Balance 3,108     3,180
Consideration from the issuance of shares 2,797,000     2,797,000
Reinvestment of distributions    
Distributions (29,604)     (29,656)
Net increase (decrease) in net assets resulting from capital activity 2,767,396     2,767,344
Net investment gain (loss) (5,135)     (5,187)
Net change in unrealized appreciation (depreciation) 5,939     6,050
Reallocation of unrealized gain (loss)       (80)
Net increase (decrease) in net assets resulting from operations 804     783
Accrued service fees (53,918)     (53,917)
Balance 2,717,390     2,717,390
ISQ Open Infrastructure Company LLC - Series II | ETE Shares        
Balance 1,329     1,344
Consideration from the issuance of shares    
Reinvestment of distributions 27     36
Distributions (29)     (66)
Net increase (decrease) in net assets resulting from capital activity (2)     (30)
Net investment gain (loss) (1)    
Net change in unrealized appreciation (depreciation) 24     67
Reallocation of unrealized gain (loss)       (31)
Net increase (decrease) in net assets resulting from operations 23     36
Accrued service fees    
Balance 1,350     1,350
ISQ Open Infrastructure Company LLC - Series II | F-S Shares        
Balance 23,504,962     13,513,460
Consideration from the issuance of shares 40,975,057     50,768,526
Reinvestment of distributions 136,805     168,998
Distributions (697,309)     (1,012,393)
Net increase (decrease) in net assets resulting from capital activity 40,414,553     49,925,131
Net investment gain (loss) 29,173     (172,561)
Net change in unrealized appreciation (depreciation) 730,235     1,380,922
Reallocation of unrealized gain (loss)       333,797
Net increase (decrease) in net assets resulting from operations 759,408     1,542,158
Accrued service fees (1,336,259)     (1,638,085)
Balance 63,342,664     63,342,664
ISQ Open Infrastructure Company LLC - Series II | F-I Shares        
Balance 12,850,624     6,660,049
Consideration from the issuance of shares 13,908,896     20,007,206
Reinvestment of distributions 71,888     86,810
Distributions (285,829)     (450,688)
Net increase (decrease) in net assets resulting from capital activity 13,694,955     19,643,328
Net investment gain (loss) (21,896)     (87,350)
Net change in unrealized appreciation (depreciation) 402,465     707,669
Reallocation of unrealized gain (loss)       2,452
Net increase (decrease) in net assets resulting from operations 380,569     622,771
Accrued service fees    
Balance 26,926,148     26,926,148
ISQ Open Infrastructure Company LLC - Series II | F-J Shares        
Balance 124,405,216     89,697,782
Consideration from the issuance of shares 8,023,000     42,282,058
Reinvestment of distributions 1,005,293     1,286,220
Distributions (1,456,226)     (3,176,584)
Net increase (decrease) in net assets resulting from capital activity 7,572,067     40,391,694
Net investment gain (loss) (605,349)     (1,911,198)
Net change in unrealized appreciation (depreciation) 2,291,867     6,129,220
Reallocation of unrealized gain (loss)       (25,592)
Net increase (decrease) in net assets resulting from operations 1,686,518     4,192,430
Accrued service fees (94,486)     (712,591)
Balance 133,569,315     133,569,315
ISQ Open Infrastructure Company LLC - Series II | I Shares        
Balance    
Consideration from the issuance of shares 325,000     325,000
Reinvestment of distributions    
Distributions (4,451)     (4,451)
Net increase (decrease) in net assets resulting from capital activity 320,549     320,549
Net investment gain (loss) 8     8
Net change in unrealized appreciation (depreciation) 145     145
Reallocation of unrealized gain (loss)      
Net increase (decrease) in net assets resulting from operations 153     153
Accrued service fees    
Balance 320,702     320,702
ISQ Open Infrastructure Company LLC - Series II | J Shares        
Balance    
Consideration from the issuance of shares 4,696,750     4,696,750
Reinvestment of distributions    
Distributions (64,180)     (64,180)
Net increase (decrease) in net assets resulting from capital activity 4,632,570     4,632,570
Net investment gain (loss) (3,871)     (3,871)
Net change in unrealized appreciation (depreciation) 17,266     17,266
Reallocation of unrealized gain (loss)      
Net increase (decrease) in net assets resulting from operations 13,395     13,395
Accrued service fees (90,490)     (90,490)
Balance 4,555,475     4,555,475
ISQ Open Infrastructure Company LLC - Series II | E Shares        
Balance 15,176,348     12,685,360
Consideration from the issuance of shares 306,500     2,744,000
Reinvestment of distributions 144,586     186,660
Distributions (159,706)     (357,252)
Net increase (decrease) in net assets resulting from capital activity 291,380     2,573,408
Net investment gain (loss) (12,203)     (5,712)
Net change in unrealized appreciation (depreciation) 260,190     718,506
Reallocation of unrealized gain (loss)       (255,847)
Net increase (decrease) in net assets resulting from operations 247,987     456,947
Accrued service fees    
Balance 15,715,715     15,715,715
ISQ Open Infrastructure Company LLC - Series II        
Balance 229,084,202 1,000 158,158,434
Consideration from the issuance of shares 97,311,453 1,000 167,629,973
Reinvestment of distributions 1,846,323     2,345,556
Distributions (3,619,621) (6,789,082)
Net increase (decrease) in net assets resulting from capital activity 95,538,155 1,000 163,186,447
Net investment gain (loss) (855,217) (3,024,091)
Net change in unrealized appreciation (depreciation) 4,972,033 11,819,744
Reallocation of unrealized gain (loss)      
Net increase (decrease) in net assets resulting from operations 4,116,816 8,795,653
Accrued service fees (2,318,435)     (3,719,796)
Balance $ 326,420,738 $ 1,000 $ 1,000 $ 326,420,738
[1] Capital activity relates to ETE Shares.