Note 8 - Financial Highlights (Tables)

6 Months Ended

Jun. 30, 2020

Notes Tables

Financial Highlights [Table Text Block]

	Three Months Ended June 30,						Six Months Ended June 30,
	2020			2019			2020			2019
Net asset value per Share, beginning of period	$	12.99		$	14.16		$	16.85		$	14.52
Net investment loss(a)		(0.02	)		(0.02	)		(0.04	)		(0.04	)
Net realized and unrealized gain (loss)(b)		3.65			0.11			(0.19	)		(0.23	)
Net increase (decrease) in net assets from operations		3.63			0.09			(0.23	)		(0.27	)
Net asset value per Share, end of period	$	16.62		$	14.25		$	16.62		$	14.25
Total return, at net asset value(c)(d)		27.94	%		0.64	%		(1.36	)%		(1.86	)%
Ratio to average net assets
Net investment loss(e)		(0.50	)%		(0.50	)%		(0.50	)%		(0.50	)%
Expenses(e)		0.50	%		0.50	%		0.50	%		0.50	%