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	$	15.37		$	12.40		$	14.56		$	12.28
Net investment loss(a)		(0.01	)		(0.01	)		(0.02	)		(0.02	)
Net realized and unrealized gain(b)		1.52			1.09			2.34			1.22
Net increase in net assets from operations		1.51			1.08			2.32			1.20
Net asset value per Share, end of period	$	16.88		$	13.48		$	16.88		$	13.48
Total return, at net asset value(c)(d)		9.82	%		8.71	%		15.93	%		9.77	%
Ratio to average net assets
Net investment loss(e)		(0.25	)%		(0.25	)%		(0.25	)%		(0.25	)%
Expenses(e)		0.25	%		0.25	%		0.25	%		0.25	%