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Financial Highlights - $ / shares | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Per Share Performance (for a Share outstanding throughout the entire period) |  |  |
Net asset value per Share at beginning of period | $ 63.03 | $ 64.63 | $ 58.11
Income from investment operations: |  |  |
Net investment loss | (0.41) | (0.37) | (0.38)
Total realized and unrealized gains or losses on investment in Bullion | 13.58 | (1.23) | 6.90
Change in net assets from operations | 13.17 | (1.60) | 6.52
Net asset value per Share at end of period | $ 76.20 | $ 63.03 | $ 64.63
Weighted average number of Shares | 5,811,918 | 5,700,685 | 5,131,918
Expense ratio | 0.60% | 0.60% | 0.60%
Net investment loss ratio | (0.60%) | (0.60%) | (0.60%)
Total return, net asset value | 20.89% | (2.48%) | 11.22%

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- Definition Net asset value per share or per unit of investments in certain entities that calculate net asset value per share. Includes, but is not limited to, by unit, membership interest, or other ownership interest. Investment includes, but is not limited to, investment in certain hedge funds, venture capital funds, private equity funds, real estate partnerships or funds. Excludes fair value disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 54B -URI http://asc.fasb.org/extlink&oid=117332851&loc=SL7495116-110257 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 205 -Section 50 -Paragraph 7 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=25866437&loc=d3e10246-115837 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 205 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25866437&loc=d3e10246-115837 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -URI http://asc.fasb.org/extlink&oid=117815213&loc=SL6742756-110258 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 59 -URI http://asc.fasb.org/extlink&oid=117332851&loc=SL6740821-110257 + Details
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