Statements of Changes in Net Assets (Unaudited) - USD ($)		3 Months Ended				6 Months Ended
		Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Net Assets, Beginning of Period		$ 27,393,007,009	$ 31,918,269,136	$ 20,223,180,272	$ 17,628,525,082	$ 31,918,269,136	$ 17,628,525,082
Operations:
Net investment loss		(18,171,855)	(18,536,656)	(14,632,446)	(11,818,169)	(36,708,511)	(26,450,615)
Net realized gain		83,087,544	258,136,947	58,420,248	151,646,482	341,224,491	210,066,730
Net change in unrealized appreciation/depreciation		1,053,747,875	(3,618,692,332)	2,078,877,217	831,013,860	(2,564,944,457)	2,909,891,077
Net increase (decrease) in net assets resulting from operations		1,118,663,564	(3,379,092,041)	2,122,665,019	970,842,173	(2,260,428,477)	3,093,507,192
Capital Share Transactions:
Contributions for Shares issued		614,040,347	533,856,902	3,865,881,490	2,615,209,304
Distributions for Shares redeemed		(514,385,668)	(1,680,026,988)	(299,101,991)	(991,396,287)
Net increase (decrease) in net assets from capital share transactions		99,654,679	(1,146,170,086)	3,566,779,499	1,623,813,017
Increase (decrease) in net assets		1,218,318,243	(4,525,262,127)	5,689,444,518	2,594,655,190
Net Assets, End of Year		28,611,325,252	27,393,007,009	25,912,624,790	20,223,180,272	$ 28,611,325,252	$ 25,912,624,790
Increase (decrease) in net assets		$ 1,218,318,243	$ (4,525,262,127)	$ 5,689,444,518	$ 2,594,655,190
Shares issued and redeemed
Shares issued (in shares)	[1]					32,575,000	204,625,000
Shares redeemed (in shares)	[1]					(65,650,000)	(42,500,000)
Net increase (decrease) in Shares issued and outstanding (in shares)						(33,075,000)	162,125,000

[1] Share transactions reflect a one-for-two reverse stock split effective at market open on May 24, 2021.