You can find additional information about the Fund at https://www.franklintempleton.com/regulatory-fund-documents. You can also request this information by contacting us at (800) DIAL BEN/342-5236.

Material Fund Change Notice [Text Block]

This report describes changes to the Fund that occurred during the reporting period.

Additional Information Phone Number

(800) DIAL BEN/342-5236

Additional Information Website

https://www.franklintempleton.com/regulatory-fund-documents

Expenses [Text Block]

WHAT WERE THE FUND COSTS FOR THE LAST YEAR? (based on a hypothetical $10,000 investment)


Fund Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^*
Putnam ESG Ultra Short ETF	$26	0.25%

^[1]

Expenses Paid, Amount

$ 26

Expense Ratio, Percent

0.25%

Factors Affecting Performance [Text Block]

HOW DID THE FUND PERFORM LAST YEAR AND WHAT AFFECTED ITS PERFORMANCE?

For the twelve months ended April 30, 2025, Putnam ESG Ultra Short ETF returned 5.63%. The Fund compares its performance to the ICE BofA U.S. Treasury Bill Index, which returned 4.98% for the same period.

PERFORMANCE HIGHLIGHTS


Top contributors to performance:
↑	Corporate credit was the largest contributor to the Fund’s relative performance during the period. Issuer selection in the banking sector, the largest sector allocation within the Fund, was the top contributor to performance.
↑	Allocation to commercial paper contributed to returns. The Fund keeps a balance of short-maturity commercial paper for liquidity purposes and as a source of returns.
↑	Allocation in securitized sectors, specifically asset-backed securities, augmented performance as the Fund continued to focus on highly rated securities that are senior in the capital structure to help broaden diversification within the Fund’s corporate exposure.


There were no significant detractors from performance during the period.

Performance Past Does Not Indicate Future [Text]

The Fund’s past performance is not necessarily an indication of how the Fund will perform in the future.

Line Graph [Table Text Block]

Average Annual Return [Table Text Block]

AVERAGE ANNUAL TOTAL RETURNS (%) Period Ended April 30, 2025


	1 Year	Since Inception (1/19/2023)
Putnam ESG Ultra Short ETF (NAV)	5.63	5.69
Bloomberg U.S. Aggregate Index	8.02	2.87
ICE BofA U.S. Treasury Bill Index	4.98	5.09

No Deduction of Taxes [Text Block]

The graph and table do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or redemption of Fund shares.

Material Change Date

May 01, 2024

Updated Performance Information Location [Text Block]

For current month-end performance, please call Franklin Templeton at (800) DIAL BEN/342-5236 or visit https://www.franklintempleton.com/investments/options/exchange-traded-funds.

Important data provider notices and terms available at www.franklintempletondatasources.com.

Net Assets

$ 158,062,913

Holdings Count | $ / shares

408

^[2]

Advisory Fees Paid, Amount

$ 265,059

Investment Company Portfolio Turnover

48.00%

Additional Fund Statistics [Text Block]

KEY FUND STATISTICS (as of April 30, 2025)


Total Net Assets	$158,062,913
Total Number of Portfolio Holdings^*	408
Total Management Fee Paid (based on a unitary fee)	$265,059
Portfolio Turnover Rate	48%

^[2]

Holdings [Text Block]

^[3]

Material Fund Change [Text Block]

HOW HAS THE FUND CHANGED?

On May 31, 2023, Franklin Resources, Inc. (“Franklin Templeton”) and Great-West Lifeco Inc., the parent company of Putnam U.S. Holdings I, LLC (“Putnam Holdings”), announced that they had entered into a definitive agreement for a subsidiary of Franklin Templeton to acquire Putnam Holdings in a stock and cash transaction (the “Transaction”). The Transaction was completed on January 1, 2024. As part of the Transaction, your Fund’s then-current investment advisor, Putnam Investment Management, LLC (“Putnam Management”), a wholly-owned subsidiary of Putnam Holdings, and your Fund’s then-current sub-advisor, Putnam Investments Limited (“PIL”), an indirect, wholly-owned subsidiary of Putnam Holdings, became indirect, wholly-owned subsidiaries of Franklin Templeton. In connection with the Transaction, shareholders of your Fund approved a new management contract with Putnam Management and a new sub-advisory contract with PIL. The new contracts were identical to the previous contracts, except for the effective dates, initial terms, updates to fund names as necessary to reflect previous name changes, and certain non-substantive changes.

Effective July 15, 2024, Putnam Management transferred its management contract for your Fund to Franklin Advisers, Inc. (“Franklin Advisers”), and Franklin Advisers replaced Putnam Management as the investment advisor to your Fund. In connection with the transfer, your Fund’s portfolio managers, along with supporting research analysts and certain other investment staff of Putnam Management, also became employees of Franklin Advisers. Putnam Management also transferred to Franklin Advisers its sub-management agreement with PIL in respect of your Fund. Franklin Advisers is an indirect, wholly-owned subsidiary of Franklin Templeton. In addition, effective July 15, 2024, Franklin Advisers retained Putnam Management as a sub-advisor to your Fund pursuant to a new sub-advisory agreement.

Effective November 1, 2024 (the “Effective Date”), PIL, a sub-advisor of the Fund prior to the Effective Date, merged with and into Franklin Templeton Investment Management Limited (“FTIML”), a wholly-owned subsidiary of Franklin Templeton (the “Merger”). As of the Effective Date, PIL investment professionals became employees of FTIML, and the sub-advisory agreement between Franklin Advisers and PIL with respect to the Fund was terminated. In connection with the Merger, the Fund’s Trustees approved a new sub-advisory agreement between Franklin Advisers and FTIML, pursuant to which FTIML became a sub-advisor of the Fund on the Effective Date.

This is a summary of certain changes to the Fund since May 1, 2024. For more complete information, you may review the Fund’s current prospectus and any applicable supplements and the Fund’s next prospectus, which we expect to be available by September 1, 2025,
at https://www.franklintempleton.com/regulatory-fund-documents or upon request at (800) DIAL BEN/342-5236 or
funddocuments@putnam.com.

Updated Prospectus Phone Number

(800) DIAL BEN/342-5236

Updated Prospectus Email Address

funddocuments@putnam.com

Updated Prospectus Web Address

https://www.franklintempleton.com/regulatory-fund-documents

[1]

*	Reflects fee waivers and/or expense reimbursements, without which expenses would have been higher.

[2]

*	Includes derivatives, if applicable.

[3]

Cash and Equivalents, if any, represent the market value weights of cash, derivatives, and other unclassified assets in the portfolio and may show a negative market value percentage as a result of the timing of trade-date and settlement-date transactions. Holdings and allocations may vary over time.