XML 37 R22.htm IDEA: XBRL DOCUMENT
v3.26.1

Note 2 - Significant Accounting Policies - Summary of Investments at Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2026 | Sep. 30, 2025
--- | --- | ---
Fair Value, Inputs, Level 1 [Member] |  |
Investments, fair value | $ 29,618,787 | $ 20,855,894
Fair Value, Inputs, Level 1 [Member] | SPDR Gold Mini Shares Trust [Member] |  |
Investments, fair value | 29,618,787 | 20,855,894
Fair Value, Inputs, Level 2 [Member] |  |
Investments, fair value | 0 | 0
Fair Value, Inputs, Level 2 [Member] | SPDR Gold Mini Shares Trust [Member] |  |
Investments, fair value | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Investments, fair value | 0 | 0
Fair Value, Inputs, Level 3 [Member] | SPDR Gold Mini Shares Trust [Member] |  |
Investments, fair value | 0 | 0
Investment in Gold [Member] | Fair Value, Inputs, Level 1 [Member] |  |
Investments, fair value | 29,618,787 | 20,855,894
Investment in Gold [Member] | Fair Value, Inputs, Level 1 [Member] | SPDR Gold Mini Shares Trust [Member] |  |
Investments, fair value | 29,618,787 | 20,855,894
Investment in Gold [Member] | Fair Value, Inputs, Level 2 [Member] |  |
Investments, fair value | 0 | 0
Investment in Gold [Member] | Fair Value, Inputs, Level 2 [Member] | SPDR Gold Mini Shares Trust [Member] |  |
Investments, fair value | 0 | 0
Investment in Gold [Member] | Fair Value, Inputs, Level 3 [Member] |  |
Investments, fair value | 0 | 0
Investment in Gold [Member] | Fair Value, Inputs, Level 3 [Member] | SPDR Gold Mini Shares Trust [Member] |  |
Investments, fair value | $ 0 | $ 0

X
- Definition Fair value of investment held in physical commodities, for example, but not limited to, gold, silver, platinum, crude oil, coal, sugar, rice, wheat. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-13 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E + Details
Name: | us-gaap_InvestmentInPhysicalCommoditiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=gldm_SPDRGoldMiniSharesTrustMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InvestmentTypeAxis=gldm_InvestmentInGoldMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |