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FINANCIAL HIGHLIGHTS (Tables)

12 Months Ended

Dec. 31, 2022

FINANCIAL HIGHLIGHTS

Schedule of per unit performance data and other supplemental financial data

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​	​	​	​	​	​	​	​	​	​	​
​		Year ended			Year ended			Year ended
​	​	December 31, 2022		​	December 31, 2021		​	December 31, 2020
Per Share Operating Performance:		​			​			​		​
Net asset value, beginning of year	​	$	54.18	​	$	33.07	​	$	102.27	​
Total income (loss)	​		16.31	​		21.48	​		(68.95)	​
Total expenses	​		(0.44)	​		(0.37)	​		(0.25)	​
Net increase (decrease) in net asset value	​		15.87	​		21.11	​		(69.20)	​
Net asset value, end of year	​	$	70.05	​	$	54.18	​	$	33.07	​
​	​	​	​	​	​	​	​	​	​	​
Total Return	​		29.29	%		63.83	%		(67.66)	%
​	​	​	​	​	​	​	​	​	​	​
Ratios to Average Net Assets	​		​	​		​	​			​
Total income (loss)	​		31.22	%		54.68	%		(54.88)	%
Management fees	​		0.45	%		0.45	%		0.45	%
Total expenses excluding management fees	​		0.15	%		0.36	%		0.38	%
Net income (loss)	​		30.61	%		53.87	%		(55.71)	%

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Tabular disclosure of per unit performance data and other supplemental financial data.

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