This semi-annual shareholder report contains important information about Natixis Gateway Quality Income ETF for the period of January 1, 2026 to June 30, 2026.

Additional Information [Text Block]

You can find additional information (including tax information) about the Fund at im.natixis.com/funddocuments. You can also request the information by contacting us at (800) 862-4863 or by contacting your financial intermediary directly.

Additional Information Phone Number

(800) 862-4863

Additional Information Website

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Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
Fund Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Natixis Gateway Quality Income ETF	$18	0.34%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).

Expenses Paid, Amount

$ 18

Expense Ratio, Percent

0.34%

AssetsNet

$ 257,517,950

Holdings Count | Holding

116

Advisory Fees Paid, Amount

$ 157,128

InvestmentCompanyPortfolioTurnover

34.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$257,517,950
# of Portfolio Holdings (including overnight repurchase agreements)116
Portfolio Turnover Rate34%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$157,128

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	36.4%
Health Care Providers & Services	3.0%
Broadline Retail	3.2%
Oil, Gas & Consumable Fuels	3.4%
Financial Services	4.1%
Software	5.9%
Interactive Media & Services	7.9%
Technology Hardware, Storage & Peripherals	8.1%
Equity-Linked Notes	9.9%
Semiconductors & Semiconductor Equipment	18.1%

Footnote	Description
Footnote^*	Net of other assets less liabilities

Largest Holdings [Text Block]

Top Ten Holdings

Table Summary
NVIDIA Corp.	7.6%
Apple, Inc.	6.8%
Alphabet, Inc., Class A	5.7%
Microsoft Corp.	3.5%
Amazon.com, Inc.	3.2%
BNP Paribas Issuance BV (Netherlands)	2.6%
Royal Bank of Canada (Canada)	2.5%
Mastercard, Inc., Class A	2.4%
Meta Platforms, Inc., Class A	2.2%
GS Finance Corp.	2.2%

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

C000276101

Shareholder Report [Line Items]

Fund Name

Natixis Loomis Sayles Total Return Bond ETF

Trading Symbol

LSTB

Security Exchange Name

NYSEArca

Annual or Semi-Annual Statement [Text Block]

This semi-annual shareholder report contains important information about Natixis Loomis Sayles Total Return Bond ETF for the period of June 23, 2026 to June 30, 2026.

Additional Information [Text Block]

You can find additional information about the Fund at im.natixis.com/funddocuments. You can also request this information by contacting us at (800) 862-4863 or by contacting your financial intermediary directly.

Additional Information Phone Number

(800) 862-4863

Additional Information Website

Expenses [Text Block]

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Table Summary
Fund Name	Costs of a $10,000 investment	Costs paid as a percentage of a $10,000 investment^{Footnote Reference†}
Natixis Loomis Sayles Total Return Bond ETF	$1^{Footnote Reference1}	0.39%

Footnote	Description
Footnote^†	Annualized for periods less than one year (if applicable).
Footnote¹	Costs are for the period of June 23, 2026 to June 30, 2026. Costs for a full semi-annual period would be higher.

Expenses Paid, Amount

$ 1

^[1]

Expense Ratio, Percent

0.39%

Expenses Short Period Footnote [Text Block]

Costs are for the period of June 23, 2026 to June 30, 2026. Costs for a full semi-annual period would be higher.

AssetsNet

$ 53,890,529

Holdings Count | Holding

221

Advisory Fees Paid, Amount

$ 0

InvestmentCompanyPortfolioTurnover

0.00%

Additional Fund Statistics [Text Block]

Key Fund Statistics

Total Net Assets$53,890,529
# of Portfolio Holdings (including overnight repurchase agreements and derivatives)221
Portfolio Turnover Rate0%
Total Advisory Fees Paid (after waiver/reimbursement, if applicable)$0

Holdings [Text Block]

Industry Summary

Table Summary
Value	Value
Other investments less than 3% of net assets^{Footnote Reference*}	37.6%
Finance Companies	3.4%
Cable Satellite	3.8%
Midstream	4.8%
Banking	5.7%
Technology	8.1%
ABS Other	11.3%
Treasuries	25.3%

Footnote	Description
Footnote^*	Net of other assets less liabilities (including futures contracts)

Credit Quality^{Footnote Reference*}^{Footnote Reference†}

Table Summary
Value	Value
Cash & equivalents	0.3
US Treasury	25.5
Not rated^{Footnote Reference^}	10.9
CCC	0.7
B	2.3
BB	12.9
BBB	37.1
A	8.0
AA	0.5
AAA	0.9

Footnote	Description
Footnote^*	Percentages are calculated based on Net Assets. Totals may not add up to 100% due to other assets and liabilities, such as receivables and payables, not being included in the table.
Footnote^†	Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.
Footnote^{^}	Not Rated category represents only those securities not rated by S&P Global Ratings. Such securities may be rated by other NRSROs not shown here.

Credit Quality Explanation [Text Block]

Credit ratings are by S&P Global Ratings. A credit rating is an assessment provided by a nationally recognized statistical rating organization (NRSRO) of the creditworthiness of an issuer with respect to debt obligations except for those debt obligations that are only privately rated. Ratings are measured on a scale that generally ranges from AAA (highest) to D (lowest). The credit ratings shown relate to the creditworthiness of the issuers of the underlying securities in the Fund, and not to the Fund or its shares. Credit ratings are subject to change.

Material Fund Change [Text Block]

Material Fund Changes

There were no material fund changes during the period.

Summary of Change Legend [Text Block]

There were no material fund changes during the period.

[1]	Costs are for the period of June 23, 2026 to June 30, 2026. Costs for a full semi-annual period would be higher.

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Key Fund Statistics

Industry Summary

Material Fund Changes

What were the fund costs for the last six months? (based on a hypothetical $10,000 investment)

Key Fund Statistics

Industry Summary

Credit QualityFootnote Reference*Footnote Reference†

Material Fund Changes

Credit Quality^{Footnote Reference*}^{Footnote Reference†}