v3.26.3
INVESTMENT IN DIGITAL ASSETS - Changes in Digital Assets Held (Details) - Franklin Crypto Index ETF [Member]
 3 Months Ended 7 Months Ended 9 Months Ended
Feb. 10, 2025
USD ($)
DigitalAssets
CreationUnits
$ / shares
$ / item
shares
Jan. 22, 2025
USD ($)
$ / shares
shares
Sep. 30, 2026
USD ($)
DigitalAssets
shares
Sep. 30, 2025
USD ($)
DigitalAssets
shares
Sep. 30, 2025
USD ($)
DigitalAssets
shares
Sep. 30, 2026
USD ($)
DigitalAssets
shares
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance of fair value [1]           $ 10,216,868
Net realized gain (loss) from Digital Assets sold for rebalancing     $ (94,156) $ 116 $ 315 (135,238)
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     5,765,858 $ 459,814 $ 1,028,699 1,648,404
Ending balance of fair value [1]     $ 17,027,480     $ 17,027,480
Shares issued during period, new issues (in Shares) | shares     100,000 100,000 150,000 450,000
Proceeds from issuance of shares         $ 4,044,659 $ 7,295,474
Redemption of Shares [2]     $ 1,981,975 $ 0 $ 0 $ 1,981,975
Bitcoin [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     155.4365 33.2484 22.1248 87.3467
Beginning balance of fair value     $ 9,186,529 $ 3,609,446 $ 2,173,344 [3] $ 7,639,607
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     19.4299 22.1644 33.1851 87.3647
Digital Assets purchased for the creation of Shares     $ 1,256,943 $ 2,598,294 $ 3,464,155 $ 5,672,121
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0 0.0028 0.1889 0.2344
Digital Assets purchased for the rebalancing of Digital Assets     $ 0 $ 304 $ 19,797 $ 16,831
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (19.4203)     (19.4203)
Digital Assets sold for the redemption of Shares     $ (1,521,654)     $ (1,521,654)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0 0 (0.0832) 0
Digital Assets sold for the rebalancing of Digital Assets     $ 0 $ 0 $ (7,120) $ 0
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (0.0731)     (0.1525)
Principal on Digital Assets sales to pay expenses     $ (4,974) 0 0 $ (12,396)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     (72,387) 0 (976) (74,383)
Net realized gain (loss) from Digital Assets sold for rebalancing     0     0
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 4,159,836 $ 121,693 $ 680,537 $ 1,284,167
Ending Balance (in Digital Assets) | DigitalAssets 22.1248175   155.373 55.4156 55.4156 155.373
Ending balance of fair value     $ 13,004,293 $ 6,329,737 $ 6,329,737 $ 13,004,293
Number of Digital Assets per creation unit 11.06240875          
Quantity of Digital Assets | DigitalAssets 22.1248175   155.373 55.4156 55.4156 155.373
Cost of Digital Asset per unit | $ / item 97,227.8          
Ether [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     806.8154 182.683 123.5548 474.4721
Beginning balance of fair value     $ 1,285,265 $ 456,764 $ 340,034 [3] $ 1,409,918
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     100.8278 121.7607 185.2175 460.5949
Digital Assets purchased for the creation of Shares     $ 188,637 $ 462,617 $ 580,504 $ 844,614
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0 0 3.359 0
Digital Assets purchased for the rebalancing of Digital Assets     $ 0 $ 0 $ 7,120 $ 0
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (100.8043) 0 0 (100.8043)
Digital Assets sold for the redemption of Shares     $ (250,861) $ 0 $ 0 $ (250,861)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0 (0.0711) (7.7587) (26.8788)
Digital Assets sold for the rebalancing of Digital Assets     $ 0 $ (304) $ (19,797) $ (54,001)
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (0.3793)     (0.9243)
Principal on Digital Assets sales to pay expenses     $ (781) 0 0 $ (2,013)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     (1,035) 116 1,291 (1,444)
Net realized gain (loss) from Digital Assets sold for rebalancing           (25,915)
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 951,280 $ 338,121 $ 348,162 $ 252,207
Ending Balance (in Digital Assets) | DigitalAssets 123.5548146   806.4596 304.3726 304.3726 806.4596
Ending balance of fair value     $ 2,172,505 $ 1,257,314 $ 1,257,314 $ 2,172,505
Number of Digital Assets per creation unit 61.7774073          
Quantity of Digital Assets | DigitalAssets 123.5548146   806.4596 304.3726 304.3726 806.4596
Cost of Digital Asset per unit | $ / item 2,665.23          
XRP [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     609,842.6656     330,323.8883
Beginning balance of fair value     $ 639,908     $ 603,733
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     76,212.19     338,714.8921
Digital Assets purchased for the creation of Shares     $ 84,104     $ 411,761
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     17,407.8747
Digital Assets purchased for the rebalancing of Digital Assets     $ 0     $ 23,259
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (76,194.4277)     (76,194.4277)
Digital Assets sold for the redemption of Shares     $ (108,165)     $ (108,165)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     0
Digital Assets sold for the rebalancing of Digital Assets     $ 0     $ 0
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (286.6609)     (678.4604)
Principal on Digital Assets sales to pay expenses     $ (334)     $ (890)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     (14,245)     (14,420)
Net realized gain (loss) from Digital Assets sold for rebalancing     0     0
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 313,093     $ (917)
Ending Balance (in Digital Assets) | DigitalAssets     609,573.767     609,573.767
Ending balance of fair value     $ 914,361     $ 914,361
Quantity of Digital Assets | DigitalAssets     609,573.767     609,573.767
Solana [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     5,398.9017     2,694.9332
Beginning balance of fair value     $ 406,915     $ 336,139
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     674.752     2,922.2463
Digital Assets purchased for the creation of Shares     $ 51,546     $ 218,382
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     459.8864
Digital Assets purchased for the rebalancing of Digital Assets     $ 0     $ 40,141
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (674.5447)     (674.5447)
Digital Assets sold for the redemption of Shares     $ (69,713)     $ (69,713)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     0
Digital Assets sold for the rebalancing of Digital Assets     $ 0     $ 0
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (2.5376)     (5.9498)
Principal on Digital Assets sales to pay expenses     $ (214)     $ (510)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     2,920     2,824
Net realized gain (loss) from Digital Assets sold for rebalancing     0     0
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 248,525     $ 112,716
Ending Balance (in Digital Assets) | DigitalAssets     5,396.5714     5,396.5714
Ending balance of fair value     $ 639,979     $ 639,979
Quantity of Digital Assets | DigitalAssets     5,396.5714     5,396.5714
Dogecoin [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     1,502,862.6388     749,351.1329
Beginning balance of fair value     $ 108,567     $ 88,273
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     187,813.75     813,162.3558
Digital Assets purchased for the creation of Shares     $ 13,603     $ 69,270
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     129,068
Digital Assets purchased for the rebalancing of Digital Assets     $ 0     $ 12,845
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (187,769.3416)     (187,769.3416)
Digital Assets sold for the redemption of Shares     $ (15,909)     $ (15,909)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     0
Digital Assets sold for the rebalancing of Digital Assets     $ 0     $ 0
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (706.4)     (1,611.4999)
Principal on Digital Assets sales to pay expenses     $ (53)     $ (142)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     (4,513)     (4,537)
Net realized gain (loss) from Digital Assets sold for rebalancing     0     0
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 42,035     $ (6,070)
Ending Balance (in Digital Assets) | DigitalAssets     1,502,200.6472     1,502,200.6472
Ending balance of fair value     $ 143,730     $ 143,730
Quantity of Digital Assets | DigitalAssets     1,502,200.6472     1,502,200.6472
Cardano [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     374,121.9642     213,170.993
Beginning balance of fair value     $ 55,818     $ 70,709
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     46,760.1993     211,308.4759
Digital Assets purchased for the creation of Shares     $ 7,820     $ 43,406
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     2,381.12
Digital Assets purchased for the rebalancing of Digital Assets     $ 0     $ 548
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (46,742.6923)     (46,742.6923)
Digital Assets sold for the redemption of Shares     $ (9,694)     $ (9,694)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     (5,732.5933)
Digital Assets sold for the rebalancing of Digital Assets     $ 0     $ (1,598)
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (175.9506)     (421.7827)
Principal on Digital Assets sales to pay expenses     $ (32)     $ (94)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     (4,187)     (4,215)
Net realized gain (loss) from Digital Assets sold for rebalancing     0     (637)
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 44,084     $ (4,616)
Ending Balance (in Digital Assets) | DigitalAssets     373,963.5206     373,963.5206
Ending balance of fair value     $ 93,809     $ 93,809
Quantity of Digital Assets | DigitalAssets     373,963.5206     373,963.5206
Stellar Lumens [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets     257,543.7911     144,668.9849
Beginning balance of fair value     $ 52,473     $ 29,245
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets     32,187.33     144,767.4958
Digital Assets purchased for the creation of Shares     $ 6,035     $ 26,283
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     6,310.8
Digital Assets purchased for the rebalancing of Digital Assets     $ 0     $ 1,569
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets     (32,177.806)     (32,177.806)
Digital Assets sold for the redemption of Shares     $ (5,979)     $ (5,979)
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets     0     (5,849.5845)
Digital Assets sold for the rebalancing of Digital Assets     $ 0     $ (921)
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets     (121.0678)     (287.6429)
Principal on Digital Assets sales to pay expenses     $ (22)     $ (53)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses     (709)     (717)
Net realized gain (loss) from Digital Assets sold for rebalancing     0     (443)
Net change in unrealized appreciation (depreciation) on investments in Digital Assets     $ 7,005     $ 9,819
Ending Balance (in Digital Assets) | DigitalAssets     257,432.2473     257,432.2473
Ending balance of fair value     $ 58,803     $ 58,803
Quantity of Digital Assets | DigitalAssets     257,432.2473     257,432.2473
Chainlink [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Beginning balance (in Digital Assets) | DigitalAssets           3,233.433
Beginning balance of fair value           $ 39,244
Digital Assets purchased for the creation of Shares (in Digital Assets) | DigitalAssets           1,077.2271
Digital Assets purchased for the creation of Shares           $ 9,732
Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets           0
Digital Assets purchased for the rebalancing of Digital Assets           $ 0
Digital Assets sold for the redemption of Shares (in Digital Assets) | DigitalAssets           0
Digital Assets sold for the redemption of Shares           $ 0
Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) | DigitalAssets           (4,309.4432)
Digital Assets sold for the rebalancing of Digital Assets           $ (38,673)
Principal on Digital Assets sales to pay expenses (in Digital Assets) | DigitalAssets           (1.2169)
Principal on Digital Assets sales to pay expenses           $ (50)
Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses           (3)
Net realized gain (loss) from Digital Assets sold for rebalancing           (11,348)
Net change in unrealized appreciation (depreciation) on investments in Digital Assets           $ 1,098
Ending Balance (in Digital Assets) | DigitalAssets     0     0
Ending balance of fair value     $ 0     $ 0
Quantity of Digital Assets | DigitalAssets     0     0
Initial Seed Shares [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Shares issued during period, new issues (in Shares) | shares   4,000        
Shares issued, price per share (in Dollars per share) | $ / shares   $ 25        
Proceeds from issuance of shares   $ 100,000        
Redemption of Shares $ 100,000          
Seed Creation Units [Member]            
INVESTMENT IN DIGITAL ASSETS [Abstract]            
Shares issued during period, new issues (in Shares) | shares 100,000          
Shares issued, price per share (in Dollars per share) | $ / shares $ 24.8          
Proceeds from issuance of shares $ 2,480,449.33          
Number of seed creation units issued | CreationUnits 2          
[1] Cost of investments in Digital Assets: $16,583,491 at September 30, 2026 and $11,421,283 at December 31, 2025.
[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.
[3] On January 22, 2025, Franklin Resources, Inc. (the “Seed Capital Investor”), an affiliate of the Sponsor, subject to conditions, purchased 4,000 Shares at a per-Share price equal to $25.00 (the “Initial Seed Shares”). Delivery of the Initial Seed Shares was made on January 22, 2025. Total proceeds to the Fund from the sale of the Initial Seed Shares were $100,000. On February 10, 2025, the Initial Seed Shares were redeemed for $100,000, and the Seed Capital Investor purchased two Creation Units in a cash transaction comprised of a total of 100,000 Shares at a per-Share price based on 11.06240875 bitcoin and 61.7774073 ether per Creation Unit, for a total of 22.1248175 bitcoin and 123.5548146 ether (the “Seed Creation Units”). The cash proceeds to the Fund from the sale of the Seed Creation Units were used by the Fund to purchase 22.1248175 bitcoin at the price of $97,227.80 per bitcoin and 123.5548146 ether at the price of $2,665.23 per ether on February 10, 2025 (exclusive of transaction and other costs incurred in connection with the conversion of the cash proceeds to bitcoin and ether respectively, which were paid by the Seed Capital Investor). Thus, the ultimate total proceeds to the Fund from the sale of the Seed Creation Units were $2,480,449.33 (an amount representing 22.1248175 bitcoin and 123.5548146 ether) representing 100,000 shares at a per-Share price equal to $24.80. Further, the transaction and other costs incurred in connection with the Seed Creation Units were paid by the Seed Capital Investor and not borne by the Fund.