Statement of Changes in Net Assets - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
(Decrease) increase in net assets from operations:
Net investment loss	$ (1,973)	$ (1,365)	$ (3,964)	$ (2,876)
Net realized gain on investment in ETC	1,436	812	2,886	1,774	$ 3,269
Net change in unrealized appreciation on investment in ETC	(121,879)	(12,304)	15,847	44,288	68,838
Net (decrease) increase in net assets resulting from operations	(122,416)	(12,857)	14,769	43,186
Increase in net assets from capital share transactions:
Shares issued	0	0	0	0
Net increase in net assets resulting from capital share transactions	0	0	0	0
Total (decrease) increase in net assets from operations and capital share transactions	(122,416)	(12,857)	14,769	43,186
Net assets:
Beginning of period	391,143	243,370	253,958	187,327	187,327
End of period	$ 268,727	$ 230,513	$ 268,727	$ 230,513	$ 253,958
Change in Shares outstanding:
Shares outstanding at beginning of period	13,993,800	13,993,800	13,993,800	13,993,800	13,993,800
Shares issued	0	0	0	0
Net increase in Shares	0	0	0	0
Shares outstanding at end of period	13,993,800	13,993,800	13,993,800	13,993,800	13,993,800