Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Significant Accounting Policies [Abstract]

Categorization Of The Trust's Assets

(Amounts in 000's of US$)	September 30, 2018		December 31, 2017
Level 2
Investment in platinum	$	495,155	$	565,745

Schedule Of Investment In Platinum

	Nine Months		Year
	Ended		Ended
(Amounts in 000's of US$, except for ounces data)	September 30, 2018		December 31, 2017
Ounces of platinum
Opening balance		610,296.7		522,844.9
Creations		123,497.5		157,717.3
Redemptions		(123,686.2)		(66,946.0)
Transfers of platinum to pay expenses		(2,555.6)		(3,319.5)
Closing balance		607,552.4		610,296.7
Investment in platinum
Opening balance	$	565,745	$	474,220
Creations		102,889		148,038
Redemptions		(114,917)		(63,632)
Realized loss on platinum distributed for the redemption of Shares		(28,583)		(17,514)
Transfers of platinum to pay expenses		(2,330)		(3,142)
Realized loss on platinum transferred to pay expenses		(619)		(873)
Change in unrealized (loss) / gain on investment in platinum		(27,030)		28,648
Closing balance	$	495,155	$	565,745