ORGANIZATION	12 Months Ended
Mar. 31, 2026
ORGANIZATION [Abstract]
ORGANIZATION	1. ORGANIZATION The Franklin Ethereum Trust (the “Trust”) was formed as a Delaware statutory trust on February 8, 2024, and is governed by the provisions of an Amended and Restated Agreement and Declaration of Trust dated as of May 30, 2024 (the “Declaration of Trust”). The Trust is not registered as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”) and is not a commodity pool for purposes of the Commodity Exchange Act (“CEA”). The accompanying combined financial statements relate to the Trust, as registrant, and the one series that it currently offers, the Franklin Ethereum ETF (the “Fund”) presented on a combined basis. Separate, series-level financial statements are provided for the Fund in another section of this report. The Trust had no operations prior to the Fund’s launch, other than matters relating to its organization and the registration of the Fund under the Securities Act of 1933, as amended (the “Securities Act”). The Sponsor of the Trust and the Fund (the “Sponsor”) is Franklin Holdings, LLC. The Sponsor is a Delaware limited liability company formed on July 21, 2021. The Sponsor is not subject to regulation by the U.S. Commodity Futures Trading Commission (“CFTC”) as a commodity pool operator with respect to the Fund, or a commodity trading advisor with respect to the Fund. The Fund issues shares (the “Shares”), which represent units of fractional undivided beneficial interest and ownership of in the Fund. The Shares of the Fund are listed on the Cboe BZX Exchange, Inc. (“Cboe BZX Exchange” or the “Exchange”). The Fund seeks to reflect generally the performance of the price of ether before payment of the Fund's expenses and liabilities. The Shares are intended to offer a convenient means of making an investment similar to an investment in ether relative to acquiring, holding and trading ether directly on a peer-to-peer or other basis or via a digital asset platform. The Shares have been designed to remove obstacles associated with the complexities and operational burdens involved in a direct investment in ether by providing an investment with a value that reflects the price of the ether owned by the Fund at such time, less the Fund's expenses. The Fund is not a proxy for a direct investment in ether. Rather, the Shares are intended to provide a cost-effective alternative means of obtaining investment exposure through the securities markets that is similar to an investment in ether. The Fund is a passive investment vehicle and is not a leveraged product. The Sponsor does not actively manage the ether held by the Fund. This means that the Sponsor does not sell ether at times when its price is in the expectation of future price increases. The Fund will not utilize leverage, derivatives or similar instruments or transactions in seeking to meet its investment objective. BNY Mellon Asset Servicing, a division of The Bank of New York Mellon, or “BNYM,” is the Fund’s Administrator (the “Administrator”) and Transfer Agent (the “Transfer Agent”). BNYM also serves as the custodian of the Fund’s cash (the “Cash Custodian”). The Administrator is generally responsible for the day-to-day administration of the Fund, including the calculation of the Fund’s net asset value (“NAV”) per Share. The Ether Custodian is responsible for safekeeping the ether owned by the Fund. The Ether Custodian is Coinbase Custody Trust Company, LLC (“Coinbase Custody”). Coinbase Inc., an affiliate of the Ether Custodian, is the Fund’s Prime Broker. CSC Delaware Trust Company, a subsidiary of the Corporation Service Company (the “Trustee”), is the sole trustee of the Trust. Franklin Distributors, LLC is the marketing agent of the Fund (the “Marketing Agent”). The Fund issues and redeems Shares only to certain eligible financial institutions called Authorized Participants and only in one or more blocks of 50,000 Shares (“Creation Units”). Creation Units are directly redeemable only by Authorized Participants. Creation Units are issued and redeemed in exchange for cash. The Shares are listed and traded on the Exchange under the ticker symbol “EZET.” The market price of the Shares may be different than the Fund’s NAV per Share. The Fund issues and redeems Shares in Creation Units on a continuous basis at the applicable NAV per Share on the transaction order date. Except when aggregated in Creation Units, the Shares are not redeemable securities. The Trust is an “emerging growth company” as that term is used in the Jumpstart Our Business Startups Act (the “JOBS Act”), subject to reduced public company reporting requirements under U.S. federal securities laws. On May 21, 2024, 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 May 21, 2024. Total proceeds to the Fund from the sale of the Initial Seed Shares were $100,000. On June 27, 2024, 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 380 ether per Creation Unit (or 0.0076 ether per Share), for a total of 760 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 760 ether at the price of $3,446.37 per ether on June 27, 2024 (exclusive of transaction and other costs incurred in connection with the conversion of the cash proceeds to ether, 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 $2,619,241.20 (an amount representing 760 ether). As noted above, 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. The fiscal year end of the Trust and the Fund is March 31st.
Franklin Ethereum ETF [Member]
ORGANIZATION [Abstract]
ORGANIZATION	1. ORGANIZATION The Franklin Ethereum Trust (the “Trust”) was formed as a Delaware statutory trust on February 8, 2024, and is governed by the provisions of an Amended and Restated Agreement and Declaration of Trust dated as of May 30, 2024 (the “Declaration of Trust”). The Trust is not registered as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”) and is not a commodity pool for purposes of the Commodity Exchange Act (“CEA”). The accompanying financial statements relate to the one series that the Trust currently offers, the Franklin Ethereum ETF (the “Fund”). The Trust had no operations prior to the Fund’s launch, other than matters relating to its organization and the registration of the Fund under the Securities Act of 1933, as amended (the “Securities Act”). The Sponsor of the Trust and the Fund (the “Sponsor”) is Franklin Holdings, LLC. The Sponsor is a Delaware limited liability company formed on July 21, 2021. The Sponsor is not subject to regulation by the U.S. Commodity Futures Trading Commission (“CFTC”) as a commodity pool operator with respect to the Fund, or a commodity trading advisor with respect to the Fund. The Fund issues shares (the “Shares”), which represent units of fractional undivided beneficial interest in the Fund. The Shares of the Fund are listed on the Cboe BZX Exchange, Inc. (“Cboe BZX Exchange” or the “Exchange”). The Fund seeks to reflect generally the performance of the price of ether before payment of the Fund's expenses and liabilities. The Shares are intended to offer a convenient means of making an investment similar to an investment in ether relative to acquiring, holding and trading ether directly on a peer-to-peer or other basis or via a digital asset platform. The Shares have been designed to remove obstacles associated with the complexities and operational burdens involved in a direct investment in ether by providing an investment with a value that reflects the price of the ether owned by the Fund at such time, less the Fund's expenses. The Fund is not a proxy for a direct investment in ether. Rather, the Shares are intended to provide a cost-effective alternative means of obtaining investment exposure through the securities markets that is similar to an investment in ether. The Fund is a passive investment vehicle and is not a leveraged product. The Sponsor does not actively manage the ether held by the Fund. This means that the Sponsor does not sell ether at times when its price is in the expectation of future price increases. The Fund will not utilize leverage, derivatives or similar instruments or transactions in seeking to meet its investment objective. BNY Mellon Asset Servicing, a division of The Bank of New York Mellon, or “BNYM,” is the Fund’s Administrator (the “Administrator”) and Transfer Agent (the “Transfer Agent”). BNYM also serves as the custodian of the Fund’s cash (the “Cash Custodian”). The Administrator is generally responsible for the day-to-day administration of the Fund, including the calculation of the Fund’s net asset value (“NAV”) per Share. The Ether Custodian is responsible for safekeeping the ether owned by the Fund. The Ether Custodian is Coinbase Custody Trust Company, LLC (“Coinbase Custody”). Coinbase Inc., an affiliate of the Ether Custodian, is the Fund’s Prime Broker. CSC Delaware Trust Company, a subsidiary of the Corporation Service Company (the “Trustee”), is the sole trustee of the Trust. Franklin Distributors, LLC is the marketing agent of the Fund (the “Marketing Agent”). The Fund issues and redeems Shares only to certain eligible financial institutions called Authorized Participants and only in one or more blocks of 50,000 Shares (“Creation Units”). Creation Units are directly redeemable only by Authorized Participants. Creation Units are issued and redeemed in exchange for cash. The Shares are listed and traded on the Exchange under the ticker symbol “EZET.” The market price of the Shares may be different than the Fund’s NAV per Share. The Fund issues and redeems Shares in Creation Units on a continuous basis at the applicable NAV per Share on the transaction order date. Except when aggregated in Creation Units, the Shares are not redeemable securities. The Fund is an “emerging growth company” as that term is used in the the Jumpstart Our Business Startups Act (the “JOBS Act”), subject to reduced public company reporting requirements under U.S. federal securities laws. On May 21, 2024, 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 May 21, 2024. Total proceeds to the Fund from the sale of the Initial Seed Shares were $100,000. On June 27, 2024, 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 380 ether per Creation Unit (or 0.0076 ether per Share), for a total of 760 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 760 ether at the price of $3,446.37 per ether on June 27, 2024 (exclusive of transaction and other costs incurred in connection with the conversion of the cash proceeds to ether, 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 $2,619,241.20 (an amount representing 760 ether). As noted above, 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. The fiscal year end of the Trust and the Fund is March 31st.

ORGANIZATION

12 Months Ended

Mar. 31, 2026

The Franklin Ethereum Trust (the “Trust”) was formed as a Delaware statutory trust on February 8, 2024, and is governed by the provisions of an Amended and Restated Agreement and Declaration of Trust dated as of May 30, 2024 (the “Declaration of Trust”). The Trust is not registered as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”) and is not a commodity pool for purposes of the Commodity Exchange Act (“CEA”). The accompanying combined financial statements relate to the Trust, as registrant, and the one series that it currently offers, the Franklin Ethereum ETF (the “Fund”) presented on a combined basis. Separate, series-level financial statements are provided for the Fund in another section of this report. The Trust had no operations prior to the Fund’s launch, other than matters relating to its organization and the registration of the Fund under the Securities Act of 1933, as amended (the “Securities Act”). The Sponsor of the Trust and the Fund (the “Sponsor”) is Franklin Holdings, LLC. The Sponsor is a Delaware limited liability company formed on July 21, 2021. The Sponsor is not subject to regulation by the U.S. Commodity Futures Trading Commission (“CFTC”) as a commodity pool operator with respect to the Fund, or a commodity trading advisor with respect to the Fund. The Fund issues shares (the “Shares”), which represent units of fractional undivided beneficial interest and ownership of in the Fund. The Shares of the Fund are listed on the Cboe BZX Exchange, Inc. (“Cboe BZX Exchange” or the “Exchange”).

The Fund seeks to reflect generally the performance of the price of ether before payment of the Fund's expenses and liabilities. The Shares are intended to offer a convenient means of making an investment similar to an investment in ether relative to acquiring, holding and trading ether directly on a peer-to-peer or other basis or via a digital asset platform. The Shares have been designed to remove obstacles associated with the complexities and operational burdens involved in a direct investment in ether by providing an investment with a value that reflects the price of the ether owned by the Fund at such time, less the Fund's expenses. The Fund is not a proxy for a direct investment in ether. Rather, the Shares are intended to provide a cost-effective alternative means of obtaining investment exposure through the securities markets that is similar to an investment in ether. The Fund is a passive investment vehicle and is not a leveraged product. The Sponsor does not actively manage the ether held by the Fund. This means that the Sponsor does not sell ether at times when its price is in the expectation of future price increases. The Fund will not utilize leverage, derivatives or similar instruments or transactions in seeking to meet its investment objective.

BNY Mellon Asset Servicing, a division of The Bank of New York Mellon, or “BNYM,” is the Fund’s Administrator (the “Administrator”) and Transfer Agent (the “Transfer Agent”). BNYM also serves as the custodian of the Fund’s cash (the “Cash Custodian”). The Administrator is generally responsible for the day-to-day administration of the Fund, including the calculation of the Fund’s net asset value (“NAV”) per Share. The Ether Custodian is responsible for safekeeping the ether owned by the Fund. The Ether Custodian is Coinbase Custody Trust Company, LLC (“Coinbase Custody”). Coinbase Inc., an affiliate of the Ether Custodian, is the Fund’s Prime Broker. CSC Delaware Trust Company, a subsidiary of the Corporation Service Company (the “Trustee”), is the sole trustee of the Trust. Franklin Distributors, LLC is the marketing agent of the Fund (the “Marketing Agent”).

The Fund issues and redeems Shares only to certain eligible financial institutions called Authorized Participants and only in one or more blocks of 50,000 Shares (“Creation Units”). Creation Units are directly redeemable only by Authorized Participants. Creation Units are issued and redeemed in exchange for cash. The Shares are listed and traded on the Exchange under the ticker symbol “EZET.” The market price of the Shares may be different than the Fund’s NAV per Share. The Fund issues and redeems Shares in Creation Units on a continuous basis at the applicable NAV per Share on the transaction order date. Except when aggregated in Creation Units, the Shares are not redeemable securities.

The Trust is an “emerging growth company” as that term is used in the Jumpstart Our Business Startups Act (the “JOBS Act”), subject to reduced public company reporting requirements under U.S. federal securities laws.

On May 21, 2024, 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 May 21, 2024. Total proceeds to the Fund from the sale of the Initial Seed Shares were $100,000. On June 27, 2024, 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 380 ether per Creation Unit (or 0.0076 ether per Share), for a total of 760 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 760 ether at the price of $3,446.37 per ether on June 27, 2024 (exclusive of transaction and other costs incurred in connection with the conversion of the cash proceeds to ether, 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 $2,619,241.20 (an amount representing 760 ether). As noted above, 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.

The fiscal year end of the Trust and the Fund is March 31st.

Franklin Ethereum ETF [Member]

ORGANIZATION [Abstract]

ORGANIZATION

The Franklin Ethereum Trust (the “Trust”) was formed as a Delaware statutory trust on February 8, 2024, and is governed by the provisions of an Amended and Restated Agreement and Declaration of Trust dated as of May 30, 2024 (the “Declaration of Trust”). The Trust is not registered as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”) and is not a commodity pool for purposes of the Commodity Exchange Act (“CEA”). The accompanying financial statements relate to the one series that the Trust currently offers, the Franklin Ethereum ETF (the “Fund”). The Trust had no operations prior to the Fund’s launch, other than matters relating to its organization and the registration of the Fund under the Securities Act of 1933, as amended (the “Securities Act”). The Sponsor of the Trust and the Fund (the “Sponsor”) is Franklin Holdings, LLC. The Sponsor is a Delaware limited liability company formed on July 21, 2021. The Sponsor is not subject to regulation by the U.S. Commodity Futures Trading Commission (“CFTC”) as a commodity pool operator with respect to the Fund, or a commodity trading advisor with respect to the Fund. The Fund issues shares (the “Shares”), which represent units of fractional undivided beneficial interest in the Fund. The Shares of the Fund are listed on the Cboe BZX Exchange, Inc. (“Cboe BZX Exchange” or the “Exchange”).

The Fund is an “emerging growth company” as that term is used in the the Jumpstart Our Business Startups Act (the “JOBS Act”), subject to reduced public company reporting requirements under U.S. federal securities laws.

The fiscal year end of the Trust and the Fund is March 31st.