v3.26.1
Combined Statements of Changes in Net Assets - USD ($)
 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Net assets, beginning of year $ 186,935,761 $ 62,102,631
Net investment loss (540,465) (142,813)
Net realized gain (loss) from gold distributed for the redemption of shares and sold to pay expenses 18,201,941 4,270,206
Net change in unrealized appreciation (depreciation) on investment in gold 114,446,198 30,460,624
Net increase (decrease) in net assets resulting from operations 132,107,674 34,588,017
Capital Share Transactions:    
Contributions for Shares issued [1] 215,191,777 116,418,428
Distributions for Shares redeemed (58,651,177) (26,173,315)
Net increase (decrease) in net assets from capital share transactions 156,540,600 90,245,113
Net assets, end of year 475,584,035 186,935,761
Franklin Responsibly Sourced Gold ETF [Member]    
Net assets, beginning of year 186,935,761 62,102,631
Net investment loss (540,465) (142,813)
Net realized gain (loss) from gold distributed for the redemption of shares and sold to pay expenses 18,201,941 4,270,206
Net change in unrealized appreciation (depreciation) on investment in gold 114,446,198 30,460,624
Net increase (decrease) in net assets resulting from operations 132,107,674 34,588,017
Capital Share Transactions:    
Contributions for Shares issued [2] 215,191,777 116,418,428
Distributions for Shares redeemed (58,651,177) (26,173,315)
Net increase (decrease) in net assets from capital share transactions 156,540,600 90,245,113
Net assets, end of year $ 475,584,035 $ 186,935,761
[1] Dollar amount of balance represents the cumulative fair value of creation of shares less the redemption of shares, at the time of the specific creation or redemption.
[2] Dollar amount of balance represents the cumulative fair value of creation of shares less the redemption of shares, at the time of the specific creation or redemption.