COMBINED STATEMENTS OF ASSETS AND LIABILITIES [Abstract] Total Assets Total liabilities Net assets Net assets, beginning of period Net assets, end of period Legal Entity [Axis] COMBINED SCHEDULES OF INVESTMENTS (Unaudited) [Abstract] Crypto Asset [Axis] Net assets, Fair Value as a % of Net Assets COMBINED STATEMENTS OF OPERATIONS (Unaudited) [Abstract] Total expenses Net investment loss Net investment income (loss) Net realized and change in unrealized appreciation (depreciation) on investments in Digital Assets Net increase (decrease) in net assets resulting from operations Net increase (decrease) in net assets resulting from operations COMBINED STATEMENTS OF CASH FLOWS (Unaudited) [Abstract] Net cash provided by (used in) operating activities Net cash provided by (used in) financing activities Net increase (decrease) in cash Cash, beginning of period Cash, end of period COMBINED STATEMENTS OF CHANGES IN NET ASSETS (Unaudited) [Abstract] Net increase (decrease) in net assets from capital share transactions Class of Stock [Axis] ORGANIZATION [Abstract] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Beginning Balance (in Shares) Ending Balance (in Shares) Shares outstanding (in Shares) Beginning Balance Ending Balance INVESTMENT IN DIGITAL ASSETS [Abstract] Beginning balance (in Digital Assets) Ending Balance (in Digital Assets) Quantity of Digital Assets Beginning balance of fair value Ending balance of fair value Investments in Digital Assets, at fair value Total investments, Fair Value RELATED PARTIES [Abstract] CONCENTRATION OF RISK [Abstract] COMBINED FINANCIAL HIGHLIGHTS [Abstract] Net asset value per Share, beginning of period (in Dollars per share) Net asset value per Share, end of period (in Dollars per share) Net asset value per Share (in Dollars per share) Net increase (decrease) in net assets from operations (in Dollars per share) COMMITMENTS AND CONTINGENCIES [Abstract] INDEMNIFICATION [Abstract] OPERATING SEGMENTS [Abstract] SUBSEQUENT EVENTS [Abstract] Document Type Document Quarterly Report Document Period End Date Document Fiscal Year Focus Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Amendment Flag Document Fiscal Period Focus Current Fiscal Year End Date Assets Liabilities Sponsor's fee payable Commitments and contingencies (Note 7) Shares issued (in Shares) Investment in Digital Assets, at cost Total investments, Cost Common stock, no par value (in Dollars per share) Common stock, shares authorized, unlimited Assets Liabilities Quantity of Digital Assets (in DigitalAssets) Total investments, Fair Value as a % of Net Assets Less liabilities, Fair Value Less liabilities, Fair Value as a % of Net Assets Expenses Sponsor's fee Sponsor's fees Net realized and change in unrealized gain (loss) on investment in Digital Assets Net realized gain (loss) from Digital Assets sold for the redemption of Shares, sold to pay expenses and sold for rebalancing Net realized gain (loss) from Digital Assets sold for the redemption of Shares, sold to pay expenses and rebalancing Net realized gain (loss) from Digital Assets sold for rebalancing Net change in unrealized appreciation (depreciation) on investments in Digital Assets Net change in unrealized (appreciation) depreciation on investments in Digital Assets Net increase (decrease) in net assets per Share (in Dollars per share) Expenses Net realized and change in unrealized gain (loss) on investment in Digital Assets Cash Flows from Operating Activities Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities: Sales of Digital Assets for the redemption of Shares and to pay expenses Sales of Digital Assets for rebalancing Change in operating assets and liabilities: Sponsor's fee payable Cash Flows from Financing Activities Proceeds from issuance of Shares Proceeds from issuance of shares Proceeds from issuance of shares (in Dollars) Proceeds from issuance of shares (in Dollars) (in Dollars) Cash Increase (decrease) in net assets from capital share transactions: Contributions for Shares issued Creation of Shares Stock issued during the period, new issues (in Shares) Creation of Shares (in Shares) Shares issued during period, new issues (in Shares) Creation of Shares Shares issued, price per share (in Dollars per share) Stock redeemed during the period, value Redemption of Shares Redemption of shares (in Dollars) Redemption of Shares Redemption of Shares (in Dollars) Number of seed creation units issued (in CreationUnits) Number of seed creation units issued Number of Digital Assets per creation unit Cost of Digital Asset per unit (in Dollars per Item) Cost of Digital Asset per unit Less waiver Purchases of Digital Assets for creations Purchases of Digital Assets for rebalancing Net realized (gain) loss from Digital Assets sold for the redemption of Shares and sold to pay expenses Net realized (gain) loss from Digital Assets sold for rebalancing Payments on Shares redeemed Distributions for Shares redeemed Franklin Crypto Index ETF [Member] Bitcoin [Member] Ether [Member] Ethere [Member] Ethereum [Member] XRP [Member] Solana [Member] Dogecoin [Member] Cardano [Member] Stellar Lumens [Member] Chainlink [Member] Initial Seed Shares [Member] Seed Creation Units [Member] ORGANIZATION SIGNIFICANT ACCOUNTING POLICIES Digital Assets in Underlying Index and Weight Weight of Digital Asset Summary of Changes in Shares INVESTMENT IN DIGITAL ASSETS Changes in Digital Assets Held Digital Assets purchased for the creation of Shares (in Digital Assets) Digital Assets purchased for the creation of Shares Digital Assets purchased for the rebalancing of Digital Assets (in Digital Assets) Digital Assets purchased for the rebalancing of Digital Assets Digital Assets sold for the redemption of Shares (in Digital Assets) Digital Assets sold for the rebalancing of Digital Assets (in Digital Assets) Digital Assets sold for the rebalancing of Digital Assets Principal on Digital Assets sales to pay expenses (in Digital Assets) Net realized gain (loss) from Digital Assets sold for the redemption of shares and to pay expenses RELATED PARTIES CONCENTRATION OF RISK COMBINED FINANCIAL HIGHLIGHTS Summary of Per Share Performance Net investment loss (in Dollars per share) Net realized and unrealized gain (loss) on investment in Digital Assets (in Dollars per share) Total return, at net asset value Ratio to average net assets(e) Net investment loss Gross expenses Net expenses Threshold value of fund’s assets on basis of which fees is determined (in Dollars) Threshold value of fund's assets on basis of which Sponsor's fee is determined COMMITMENTS AND CONTINGENCIES INDEMNIFICATION OPERATING SEGMENTS SUBSEQUENT EVENTS Ratio to average net assets(e) Redemption of Shares (in Shares) Digital Assets sold for the redemption of Shares Principal on Digital Assets sales to pay expenses Statistical Measurement [Axis] Related and Nonrelated Parties [Axis] Non-Rule 10b5-1 Arrangement Adopted [Flag] Rule 10b5-1 Arrangement Adopted [Flag] Non-Rule 10b5-1 Arrangement Terminated [Flag] Rule 10b5-1 Arrangement Terminated [Flag] Threshold multiples in which shares are issued (in Shares) Ordinary legal fees and expenses assumed by the sponsor Sponsor's fee rate Extraordinary or non-routine expenses Number of business days to transfer ownership of Bitcoin Provision for income taxes Unrecognized tax benefits Number of shares held by related party (in Shares) Number of operating segment Basis of Presentation Calculation of NAV and NAV per Share Valuation of Digital Assets Fees, Expenses, and Realized Gains (Losses) Digital Assets Receivable and Payable Income Taxes Creation and Redemption of Shares Maximum [Member] Franklin Holdings, LLC [Member] Entity [Domain] Statement [Table] Statement [Line Items] Crypto Asset [Domain] COMBINED SCHEDULES OF INVESTMENTS (Unaudited) [Abstract] COMBINED STATEMENTS OF CASH FLOWS (Unaudited) [Abstract] Class of Stock [Domain] Consolidation, Less-than-Wholly-Owned Subsidiary, Parent Ownership Interest, Effect of Change [Table] ORGANIZATION [Abstract] Significant Accounting Policies Disclosure [Table] SIGNIFICANT ACCOUNTING POLICIES [Abstract] INVESTMENT IN DIGITAL ASSETS [Table] INVESTMENT IN DIGITAL ASSETS [Abstract] Related Party Transaction [Table] RELATED PARTIES [Abstract] CONCENTRATION OF RISK [Table] CONCENTRATION OF RISK [Abstract] Investment Company, Financial Highlights [Table] COMBINED FINANCIAL HIGHLIGHTS [Abstract] COMMITMENTS AND CONTINGENCIES [Table] COMMITMENTS AND CONTINGENCIES [Abstract] INDEMNIFICATION [Table] INDEMNIFICATION [Abstract] Schedule of Segment Reporting Information, by Segment [Table] OPERATING SEGMENTS [Abstract] SUBSEQUENT EVENTS [Table] SUBSEQUENT EVENTS [Abstract] Accounting Policies, by Policy (Policies) [Table] Accounting Policies, by Policy (Policies) [Line Items] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] SIGNIFICANT ACCOUNTING POLICIES [Abstract] Summary Of Changes in the Shares Issued and Outstanding [Table] Crypto Asset, Activity [Table] Statistical Measurement [Domain] Related and Nonrelated Parties [Domain] Trading Arrangements, by Individual [Table] Disclosure of accounting policy for creation and redemption of shares. Number of restricted and unrestricted crypto asset units held. Excludes crypto asset units held for platform user. Number of crypto asset units per creation unit. Number of crypto asset units purchased for the creation of Shares. Excludes crypto asset units held for platform user. Number of restricted and unrestricted crypto asset units purchased purchased specifically for the purpose of rebalancing digital asset holdings. Excludes crypto asset units held for platform user. Number of restricted and unrestricted crypto asset units sold. Excludes crypto asset units held for platform user. Amount of decrease in crypto asset from payment for services and expenses. Excludes crypto asset held for platform user. Number of restricted and unrestricted crypto asset units sold specifically for the purpose of rebalancing digital asset holdings. Excludes crypto asset units held for platform user. Per unit price of crypto asset purchased. Disclosure of accounting policy for crypto asset receivable and payable. Amount of decrease in crypto asset from sale. Excludes crypto asset held for platform user. Crypto asset purchased specifically for the purpose of rebalancing digital asset holdings. Tabular disclosure of information about digital assets in the underlying index and their weightings. Fees and expenses which are unexpected or unusual in nature, such as legal claims and liabilities and litigation costs or indemnification or other unanticipated expenses. Disclosure of accounting policy for fees expenses and realized gain (loss). Increase (decrease) in net asset value from operation per share. The ordinary legal fees and expenses incurred, assumed by the Sponsor in exchange for the Sponsor's fee. Percentage of investment owned to net assets after deducting liabilities. Per share or unit amount of net realized and unrealized gain (loss) on investment. The net realized gain (loss) on investments in digital assets sold specifically for for the purpose of rebalancing digital asset holdings. Net realized gain (loss) on investments in Digital Assets sold for rebalancing. Net realized (gain) loss from investments in Digital Assets sold for the redemption of shares and sold the holdings to pay expenses. The number of business days required for the transfer of Bitcoin ownership Number of seed creation units issued in cash transaction. Number of shares held by related party. Percentage of total return on net asset value. Amount of cash outflow arising from the acquisition of digital assets for the purpose of rebalancing digital asset holdings, classified as operating activity. Amount of cash inflow from sale of digital assets for the purpose of rebalancing digital asset holdings, classified as operating activity. Summary of changes in the shares issued and outstanding. Threshold multiples in which shares are issued. Threshold value of the fund's assets on the basis of which Sponsor's fee is determined. The Digital Assets included in the Underlying Index are weighted based on their free float market capitalization as determined by the Index Provider. Bitcoin is a type of crypto currency. Cardano is a type of crypto currency. Chainlink is a type of crypto currency. Dogecoin is a type of crypto currency. Ethereum is a type of crypto currency. Franklin Holdings, LLC. Initial Seed Shares means securities issued before an Issuer's IPO, or by a private Target Company before a reverse take-over bid, change of business or Qualifying Transaction, regardless of whether the securities are subject to resale restrictions or are free trading. Seed creation units. Solana is a type of crypto currency. Stellar Lumens is a type of crypto currency. XRP is a type of crypto currency. Disclosure of information about significant accounting policies. Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. City Area Code Number of Operating Segments Entity Address, City or Town Entity Small Business Assets [Abstract] Sales Of Digital Assets For Rebalancing Investment Company, Net Asset Value, Per Share, Period Increase (Decrease) Crypto Asset, Unrealized Gain (Loss), Operating and Nonoperating Number Of Business Days To Transfer Ownership Of Bitcoin Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation [Abstract] Non-Rule 10b5-1 Arrangement Terminated [Flag] Significant Accounting Policies Line Items Crypto Asset, Fair Value Payments for Repurchase of Equity Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Crypto Asset, Activity [Line Items] Local Phone Number Basis of Accounting, Policy [Policy Text Block] Stock Issued During Period, Value, New Issues Fair Value Measurement, Policy [Policy Text Block] Concentration Risk Disclosure [Text Block] Income Tax Expense (Benefit) Crypto Asset Number Of Units Sold For The Rebalancing Of Digital Assets Noninvestment Assets Less Noninvestment Liabilities Entity Common Stock, Shares Outstanding Investment Company, Capital Share Transaction, Increase (Decrease) Segment Reporting [Line Items] Title of 12(b) Security Professional Fees Crypto Asset, Cost Assets Liabilities Number Of Shares Held By Related Party Net Asset Value Per Share Legal Fees And Expenses Assumed By Sponsor Subsequent Events [Text Block] Entity Address, State or Province Rule 10b5-1 Arrangement Terminated [Flag] Entity Shell Company Security Exchange Name Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Number Of Seed Creation Units Issued Seed Creation Units Member Stellar Lumens Member Extraordinary Or Non Routine Expenses Shares, Issued Net Realizedgain Loss From Digital Assets Sold For Rebalancing Net Investment Income Weight Of Digital Asset Crypto Asset Price Per Unit Ethereum Member Net Assets Percentage Of Net Assets Value Investment Company, Investment Income (Loss) from Operations, Per Share Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Crypto Asset, Activity [Table Text Block] Payment for Purchase, Investment, Operating Activity Entity Incorporation, State or Country Code Entity Address, Address Line One Income Tax, Policy [Policy Text Block] Maximum [Member] Non-Rule 10b5-1 Arrangement Adopted [Flag] Crypto Asset, Realized and Unrealized Gain (Loss), Operating and Nonoperating Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Crypto Asset, Payment for Service Amendment Flag Loss Contingencies [Line Items] Investment Company, Financial Highlights [Table Text Block] Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Stock Repurchased and Retired During Period, Value Crypto Asset [Text Block] Crypto Asset, Number of Units Entity Central Index Key Cardano Member Net Realized And Unrealized Gain Loss On Investment Investment Company, Financial Highlights [Text Block] Significant Accounting Policies [Text Block] Liabilities Abstract0 Entity Registrant Name Commitments and Contingencies Threshold Value Of Funds Assets On The Basis Of Which Fee Is Determined Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] Insider Trading Arrangements [Line Items] Investment Company, Investment Income (Loss) Ratio Related Party Transactions Disclosure [Text Block] Summary Of Changes In The Shares Issued And Outstanding Text Block Crypto Asset Sold For The Rebalancing Of Digital Assets Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net Realized Gain Loss On Investments In Digital Assets Sold For Rebalancing Crypto Assets Purchased For Rebalancing Of Digital Assets Increase Decrease In Net Assets From Operation Per Share Ratio To Average Net Assets EAbstract0 Threshold Multiples In Which Shares Are Issued Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Crypto Asset, Realized and Unrealized Gain (Loss), Operating and Nonoperating, Alternative [Abstract] Crypto Asset Number Of Units Sold For Service Entity Ex Transition Period Nature of Operations [Text Block] Fees Expenses And Realized Gain Loss Policy Text Block Noninvestment Asset Less Noninvestment Liability, Percent of Net Asset Investment Company, Expense Ratio after Incentive Allocation Crypto Asset Receivable And Payable Policy Text Block Unrecognized Tax Benefits Assets Abstract0 Equity, Attributable to Parent Management and Service Fees, Base Rate Expenses Abstract Percentage Of Total Return On Net Asset Value Current Fiscal Year End Date Subsequent Event [Line Items] Document Fiscal Year Focus Franklin Crypto Index ETFMember Management Fee Payable Crypto Asset Number Of Units Purchased Crypto Asset Number Of Units Sold Segment Reporting [Text Block] Earnings Per Share, Policy [Policy Text Block] Concentration Risk [Line Items] Increase (Decrease) in Management Fee Payable Entity Current Reporting Status Entity Emerging Growth Company Proceeds from Disposition of Investment, Operating Activity Initial Seed Shares Member Franklin Holdings LLCMember Entity Address, Postal Zip Code Ratio To Average Net Assets EAbstract Net Realizedgain Loss From Digital Assets Sold For Redemption Of Shares Solana Member Crypto Asset, Realized Gain (Loss), Operating and Nonoperating Document Fiscal Period Focus Contingencies Disclosure [Text Block] Rule 10b5-1 Arrangement Adopted [Flag] Stock Redeemed or Called During Period, Shares Document Transition Report Net Income (Loss) Attributable to Parent Dogecoin Member Crypto Asset Number Of Units Purchased For The Rebalancing Of Digital Assets Net Assets Common Stock, No Par Value Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement [Abstract] Investment Company, Expense, after Reduction of Fee Waiver and Reimbursement Net Realized And Change In Unrealized Gain Loss On Investment In Digital Assets Abstract Document Quarterly Report Chainlink Member Investment Company, Expense Offset Arrangement Entity Tax Identification Number Common Stock, Shares Authorized, Unlimited [Fixed List] Bitcoin Member Crypto Asset, Purchase Document Type Entity File Number Shares Issued, Price Per Share Commitments and Contingencies Disclosure [Text Block] XRPMember Document Period End Date Crypto Asset Number Of Units Held Crypto Asset Number Of Units Per Creation Unit Crypto Asset, Sale Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Entity Interactive Data Current Shares, Outstanding Entity Filer Category Commitments And Contingent Liabilities Line Items Liabilities [Abstract] Investment Company, Expense Ratio before Incentive Allocation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect, Continuing Operation Investment Owned, Net Assets, Percentage Related Party Transaction [Line Items] Purchases Of Digital Assets For Rebalancing Digital Assets In Underlying Index And Weights Table Text Block Trading Symbol Investment Company, Capital Share Transaction, Increase (Decrease) [Abstract] Creation And Redemption Of Shares Policy Text Block Investment Company, Financial Highlights [Line Items]