485BPOS

Filed with the U.S. Securities and Exchange Commission on February 3, 2020

1933 Act Registration File No. 333-179562

1940 Act File No. 811-22668

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N‑1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	x
Pre‑Effective Amendment No.	¨
Post‑Effective Amendment No. 600	x
and
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	x
Amendment No. 601	x

(Check appropriate box or boxes.)

ETF SERIES SOLUTIONS

(Exact Name of Registrant as Specified in Charter)

615 East Michigan Street, Milwaukee, Wisconsin 53202

(Address of Principal Executive Offices, Zip Code)

(Registrant’s Telephone Number, including Area Code): (414) 765-5586

Michael D. Barolsky, Vice President and Secretary

ETF Series Solutions

c/o U.S. Bank Global Fund Services

777 East Wisconsin Avenue, 10th Floor

Milwaukee, Wisconsin 53202

(Name and Address of Agent for Service)

Copy to:

W. John McGuire

Morgan, Lewis & Bockius LLP

1111 Pennsylvania Avenue, NW

Washington, DC 20004-2541

As soon as practical after the effective date of this Registration Statement

Approximate Date of Proposed Public Offering

It is proposed that this filing will become effective

x immediately upon filing pursuant to paragraph (b)

¨ on  pursuant to paragraph (b)

¨ 60 days after filing pursuant to paragraph (a)(1)

¨ on  pursuant to paragraph (a)(1)

¨ 75 days after filing pursuant to paragraph (a)(2)

¨ onpursuant to paragraph (a)(2) of Rule 485.

This Post-Effective Amendment (“PEA”) No. 600 to the Trust’s Registration Statement on Form N-1A hereby incorporates Parts A, B, and C from the Trust’s Post-Effective Amendment No. 595 on Form N-1A filed January 24, 2020. This PEA No. 600 is filed for the sole purpose of submitting the XBRL exhibit for the risk/return summary first provided in Post-Effective Amendment No. 595 to the Trust’s Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this registration statement under rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment to its Registration Statement on Form N-1A to be signed below on its behalf by the undersigned, duly authorized, in the City of Milwaukee, State of Wisconsin, on February 3, 2020.

ETF Series Solutions

By: /s/ Michael D. Barolsky        

Michael D. Barolsky
Vice President and Secretary

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment to the Registrant’s Registration Statement on Form N-1A has been signed below by the following persons in the capacities indicated on February 3, 2020.

Signature	Title
*/s/ David A. Massart	Trustee
David A. Massart
*/s/ Janet D. Olsen	Trustee
Janet D. Olsen
*/s/ Leonard M. Rush	Trustee
Leonard M. Rush
*/s/ Michael A. Castino	Trustee
Michael A. Castino
*/s/ Kristina R. Nelson	President
Kristina R. Nelson
*/s/ Kristen M. Weitzel	Treasurer
Kristen M. Weitzel
*By: /s/ Michael D. Barolsky    Michael D. Barolsky, Attorney-in-Fact    pursuant to Powers of Attorney

EXHIBIT INDEX

Exhibit	Exhibit No.
Instance Document	EX-101.INS
Schema Document	EX-101.SCH
Calculation Linkbase Document	EX-101.CAL
Definition Linkbase Document	EX-101.DEF
Label Linkbase Document	EX-101.LAB
Presentation Linkbase Document	EX-101.PRE

XML

Total

Distillate U.S. Fundamental Stability & Value ETF

Distillate U.S. Fundamental Stability & Value ETF

Investment Objective

The Distillate U.S. Fundamental Stability & Value ETF (the “Fund”) seeks to track the performance, before fees and expenses, of the Distillate U.S. Fundamental Stability & Value Index (the “Index”).

Fees and Expenses of the Fund

The following table describes the fees and expenses you may pay if you buy, hold, and sell shares of the Fund (“Shares”). This table and the Example below do not include the brokerage commissions that investors may pay on their purchases and sales of Shares.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	Distillate U.S. Fundamental Stability & Value ETF Distillate U.S. Fundamental Stability & Value ETF
Management Fees (as a percentage of Assets)	0.39%
Distribution and Service (12b-1) Fees	none
Other Expenses (as a percentage of Assets):	none
Expenses (as a percentage of Assets)	0.39%

Expense Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
Distillate U.S. Fundamental Stability & Value ETF | Distillate U.S. Fundamental Stability & Value ETF | USD ($)	40	125	219	493

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance.For the fiscal period October 23, 2018 (commencement of operations) through September 30, 2019, the Fund’s portfolio turnover rate was 69% of the average value of its portfolio.

Principal Investment Strategy

The Fund uses a “passive management” (or indexing) approach to track the performance, before fees and expenses, of the Index. The Index was developed in 2018 by Distillate Capital Partners LLC, the Fund’s investment adviser and index provider (the “Adviser”), and uses an objective, rules-based methodology to measure the performance of U.S.-listed, large-capitalization equity securities, selected based on certain fundamental factors, as described below.

Distillate U.S. Fundamental Stability & Value Index

Construction of the Index begins with the constituents of the Solactive US Large Cap Index, consisting of approximately 500 of the largest U.S.-listed companies, screened to remove companies that have less than five years of cash flow per share data available (the “Equity Universe”). The remaining companies are then evaluated based on the following three proprietary fundamental measures to identify the companies that will be included in the Index:

Financial Indebtedness	Companies with significant leverage (based on a proprietary debt-to-income calculation) are excluded from the Index.
Fundamental Stability	Each company is scored based on a proprietary measure of the volatility of its historical and projected cash flows as an indicator of fundamental stability. The bottom 50% (i.e., the least stable) of the companies in the Equity Universe based on this measure are excluded from the Index.
Valuation	Each company is scored based on a proprietary measure of the company’s free cash flow yield (a measure comparing a company’s normalized free cash flow to its enterprise value). The top 100 companies (the most undervalued) that meet the Index’s other criteria are included in the Index.

Although the Index methodology seeks to select companies that demonstrate fundamental stability, the value of such companies (and consequently the value of the Index and of the Fund) may still be subject to volatility over short or long periods of time.

The Index is reconstituted based on the above criteria quarterly after the close of trading on the 5^th business day of each January, April, July, and October, utilizing data from the last business day of the month preceding the reconstitution (the “Data Date”). At the time of each reconstitution of the Index, each company is weighted based on the sum of two-thirds of its equal weighting weight (i.e., 2/3 of 1%) and one-third of its proportion of the Index’s total normalized cash flow, using data as of the Data Date. For example, for an Index constituent with 4% of the total normalized free cash flow of all 100 index constituents, its weighting would be two-thirds of 1% plus one-third of 4%, which equals 2%.

As of September 30, 2019, the Index had significant exposure to the information technology, industrials, health care, and consumer discretionary sectors.

The Fund’s Investment Strategy

The Fund attempts to invest all, or substantially all, of its assets in the component securities that make up the Index. Under normal circumstances, at least 80% of the Fund’s total assets (exclusive of any collateral held from securities lending) will be invested in the component securities of the Index. The Adviser expects that, over time, the correlation between the Fund’s performance and that of the Index, before fees and expenses, will be 95% or better.

The Fund will generally use a “replication” strategy to achieve its investment objective, meaning it generally will invest in all of the component securities of the Index in approximately the same proportions as in the Index. However, the Fund may use a “representative sampling” strategy, meaning it may invest in a sample of the securities in the Index whose risk, return and other characteristics closely resemble the risk, return and other characteristics of the Index as a whole, when the Fund’s sub-adviser believes it is in the best interests of the Fund (e.g., when replicating the Index involves practical difficulties or substantial costs, an Index constituent becomes temporarily illiquid, unavailable, or less liquid, or as a result of legal restrictions or limitations that apply to the Fund but not to the Index).

The Fund generally may invest up to 20% of its total assets (exclusive of any collateral held from securities lending) in securities or other investments not included in the Index, but which the Fund’s sub-adviser believes will help the Fund track the Index. For example, the Fund may invest in securities that are not components of the Index to reflect various corporate actions and other changes to the Index (such as reconstitutions, additions, and deletions).

To the extent the Index concentrates (i.e., holds more than 25% of its total assets) in the securities of a particular industry or group of related industries, the Fund will concentrate its investments to approximately the same extent as the Index.

Principal Investment Risks

The principal risks of investing in the Fund are summarized below. The principal risks are presented in alphabetical order to facilitate finding particular risks and comparing them with other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund.Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund.”

• Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. The trading prices of equity securities and other instruments fluctuate in response to a variety of factors. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.

• ETF Risks. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks:

◦ Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

◦ Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

◦ Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.

◦ Trading.Although Shares are listed for trading on the NYSE Arca, Inc. (the “Exchange”) and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares.

• Large-Capitalization Companies Risk. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.

• Limited Operating History. The Fund is a recently organized management investment company with a limited operating history. As a result, prospective investors have a limited track record or history on which to base their investment decision.

• Passive Investment Risk. The Fund is not actively managed, and its sub-adviser would not sell shares of an equity security due to current or projected underperformance of a security, industry, or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution or rebalancing of the Index in accordance with the Index methodology.

• Sector Risk.To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. The Fund may invest a significant portion of its assets in the following sectors and, therefore, the performance of the Fund could be negatively impacted by events affecting each of these sectors.

◦ Consumer Sectors Risk. The success of consumer product manufacturers and retailers is tied closely to the performance of domestic and international economies, interest rates, exchange rates, competition, consumer confidence, changes in demographics and consumer preferences. Companies in the consumer staples sector, such as companies that produce or sell food, beverage, and drug retail or other household items, may be adversely impacted by changes in global and economic conditions, rising energy prices, and changes in the supply or price of commodities. Companies in the consumer discretionary sector, such as automobile, textile, retail, and media companies, depend heavily on disposable household income and consumer spending, and may be strongly affected by social trends and marketing campaigns. These companies may be subject to severe competition, which may have an adverse impact on their profitability.

◦ Health Care Sector Risk.Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines, an increased emphasis on the delivery of healthcare through outpatient services, loss or impairment of intellectual property rights and litigation regarding product or service liability.

◦ Industrial Sector Risk.The industrial sector can be significantly affected by, among other things, worldwide economic growth, supply and demand for specific products and services, rapid technological developments, international political and economic developments, environmental issues, tariffs and trade barriers, and tax and governmental regulatory policies. As the demand for, or prices of, industrials increase, the value of the Fund’s investments generally would be expected to also increase. Conversely, declines in the demand for, or prices of, industrials generally would be expected to contribute to declines in the value of such securities. Such declines may occur quickly and without warning and may negatively impact the value of the Fund and your investment.

◦ Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.

• Tracking Error Risk. As with all index funds, the performance of the Fund and the Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.

Performance

The following performance information indicates some of the risks of investing in the Fund.The bar chart shows the Fund’s performance for the calendar year ended December 31.The table illustrates how the Fund’s average annual returns for the 1-year and since inception periods compare with those of a broad measure of market performance and the Index.The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future.Updated performance information is available on the Fund’s website atwww.distillatefunds.com/dstl.

Calendar Year Total Returns

During the period of time shown in the bar chart, the Fund’shighest quarterly returnwas13.25%for the quarter endedMarch 31, 2019, and thelowest quarterly returnwas2.25%for the quarter endedSeptember 30, 2019.

Average Annual Total Returns For the Period Ended December 31, 2019

Average Annual Total Returns - Distillate U.S. Fundamental Stability & Value ETF	Label	1 Year	Since Inception	Inception Date
Distillate U.S. Fundamental Stability & Value Index (reflects no deduction for fees, expenses, or taxes)	Distillate U.S. Fundamental Stability & Value Index (reflects no deduction for fees, expenses, or taxes)	35.52%	20.79%	Oct. 23, 2018
S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	S&P 500® Index (reflects no deduction for fees, expenses, or taxes)	31.49%	17.21%	Oct. 23, 2018
Distillate U.S. Fundamental Stability & Value ETF	Return Before Taxes	34.91%	20.29%	Oct. 23, 2018
Distillate U.S. Fundamental Stability & Value ETF | After Taxes on Distributions	Return After Taxes on Distributions	34.60%	19.95%
Distillate U.S. Fundamental Stability & Value ETF | After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	20.89%	15.50%

After-tax returns are calculated using the historical highest individual federal marginal income tax rates during the period covered by the table above and do not reflect the impact of state and local taxes.Actual after-tax returns depend on an investor’s tax situation and may differ from those shown.After-tax returns shown are not relevant to investors who hold their Shares through tax-deferred arrangements such as an individual retirement account (“IRA”) or other tax-advantaged accounts.

XML

Label

Element

Value

Prospectus [Line Items]

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Document Type

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485BPOS

Document Period End Date

dei_DocumentPeriodEndDate

Sep. 30, 2019

Entity Registrant Name

dei_EntityRegistrantName

ETF Series Solutions

Entity Central Index Key

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0001540305

Amendment Flag

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false

Document Creation Date

dei_DocumentCreationDate

Jan. 24, 2020

Document Effective Date

dei_DocumentEffectiveDate

Jan. 31, 2020

Prospectus Date

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Jan. 31, 2020

Entity Inv Company Type

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N-1A

Distillate U.S. Fundamental Stability & Value ETF

Prospectus [Line Items]

rr_ProspectusLineItems

Risk/Return [Heading]

rr_RiskReturnHeading

Distillate U.S. Fundamental Stability & Value ETF

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

The Distillate U.S. Fundamental Stability & Value ETF (the “Fund”) seeks to track the performance, before fees and expenses, of the Distillate U.S. Fundamental Stability & Value Index (the “Index”).

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

The following table describes the fees and expenses you may pay if you buy, hold, and sell shares of the Fund (“Shares”). This table and the Example below do not include the brokerage commissions that investors may pay on their purchases and sales of Shares.

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance.For the fiscal period October 23, 2018 (commencement of operations) through September 30, 2019, the Fund’s portfolio turnover rate was 69% of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

69.00%

Expense Exchange Traded Fund Commissions [Text]

rr_ExpenseExchangeTradedFundCommissions

This table and the Example below do not include the brokerage commissions that investors may pay on their purchases and sales of Shares.

Expense Example [Heading]

rr_ExpenseExampleHeading

Expense Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategy

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

The Fund uses a “passive management” (or indexing) approach to track the performance, before fees and expenses, of the Index. The Index was developed in 2018 by Distillate Capital Partners LLC, the Fund’s investment adviser and index provider (the “Adviser”), and uses an objective, rules-based methodology to measure the performance of U.S.-listed, large-capitalization equity securities, selected based on certain fundamental factors, as described below.

Distillate U.S. Fundamental Stability & Value Index

Construction of the Index begins with the constituents of the Solactive US Large Cap Index, consisting of approximately 500 of the largest U.S.-listed companies, screened to remove companies that have less than five years of cash flow per share data available (the “Equity Universe”). The remaining companies are then evaluated based on the following three proprietary fundamental measures to identify the companies that will be included in the Index:

Financial Indebtedness	Companies with significant leverage (based on a proprietary debt-to-income calculation) are excluded from the Index.
Fundamental Stability	Each company is scored based on a proprietary measure of the volatility of its historical and projected cash flows as an indicator of fundamental stability. The bottom 50% (i.e., the least stable) of the companies in the Equity Universe based on this measure are excluded from the Index.
Valuation	Each company is scored based on a proprietary measure of the company’s free cash flow yield (a measure comparing a company’s normalized free cash flow to its enterprise value). The top 100 companies (the most undervalued) that meet the Index’s other criteria are included in the Index.

Although the Index methodology seeks to select companies that demonstrate fundamental stability, the value of such companies (and consequently the value of the Index and of the Fund) may still be subject to volatility over short or long periods of time.

The Index is reconstituted based on the above criteria quarterly after the close of trading on the 5^th business day of each January, April, July, and October, utilizing data from the last business day of the month preceding the reconstitution (the “Data Date”). At the time of each reconstitution of the Index, each company is weighted based on the sum of two-thirds of its equal weighting weight (i.e., 2/3 of 1%) and one-third of its proportion of the Index’s total normalized cash flow, using data as of the Data Date. For example, for an Index constituent with 4% of the total normalized free cash flow of all 100 index constituents, its weighting would be two-thirds of 1% plus one-third of 4%, which equals 2%.

As of September 30, 2019, the Index had significant exposure to the information technology, industrials, health care, and consumer discretionary sectors.

The Fund’s Investment Strategy

The Fund attempts to invest all, or substantially all, of its assets in the component securities that make up the Index. Under normal circumstances, at least 80% of the Fund’s total assets (exclusive of any collateral held from securities lending) will be invested in the component securities of the Index. The Adviser expects that, over time, the correlation between the Fund’s performance and that of the Index, before fees and expenses, will be 95% or better.

The Fund will generally use a “replication” strategy to achieve its investment objective, meaning it generally will invest in all of the component securities of the Index in approximately the same proportions as in the Index. However, the Fund may use a “representative sampling” strategy, meaning it may invest in a sample of the securities in the Index whose risk, return and other characteristics closely resemble the risk, return and other characteristics of the Index as a whole, when the Fund’s sub-adviser believes it is in the best interests of the Fund (e.g., when replicating the Index involves practical difficulties or substantial costs, an Index constituent becomes temporarily illiquid, unavailable, or less liquid, or as a result of legal restrictions or limitations that apply to the Fund but not to the Index).

The Fund generally may invest up to 20% of its total assets (exclusive of any collateral held from securities lending) in securities or other investments not included in the Index, but which the Fund’s sub-adviser believes will help the Fund track the Index. For example, the Fund may invest in securities that are not components of the Index to reflect various corporate actions and other changes to the Index (such as reconstitutions, additions, and deletions).

To the extent the Index concentrates (i.e., holds more than 25% of its total assets) in the securities of a particular industry or group of related industries, the Fund will concentrate its investments to approximately the same extent as the Index.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

The principal risks of investing in the Fund are summarized below. The principal risks are presented in alphabetical order to facilitate finding particular risks and comparing them with other funds. Each risk summarized below is considered a “principal risk” of investing in the Fund, regardless of the order in which it appears.As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund.Some or all of these risks may adversely affect the Fund’s net asset value per share (“NAV”), trading price, yield, total return and/or ability to meet its objectives. For more information about the risks of investing in the Fund, see the section in the Fund’s Prospectus titled “Additional Information About the Fund.”

• Equity Market Risk. The equity securities held in the Fund’s portfolio may experience sudden, unpredictable drops in value or long periods of decline in value. This may occur because of factors that affect securities markets generally or factors affecting specific issuers, industries, or sectors in which the Fund invests. The trading prices of equity securities and other instruments fluctuate in response to a variety of factors. The Fund’s NAV and market price may fluctuate significantly in response to these and other factors. As a result, an investor could lose money over short or long periods of time.

• ETF Risks. The Fund is an ETF, and, as a result of an ETF’s structure, it is exposed to the following risks:

◦ Authorized Participants, Market Makers, and Liquidity Providers Concentration Risk. The Fund has a limited number of financial institutions that may act as Authorized Participants (“APs”). In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Shares may trade at a material discount to NAV and possibly face delisting: (i) APs exit the business or otherwise become unable to process creation and/or redemption orders and no other APs step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

◦ Costs of Buying or Selling Shares. Due to the costs of buying or selling Shares, including brokerage commissions imposed by brokers and bid/ask spreads, frequent trading of Shares may significantly reduce investment results and an investment in Shares may not be advisable for investors who anticipate regularly making small investments.

◦ Shares May Trade at Prices Other Than NAV. As with all ETFs, Shares may be bought and sold in the secondary market at market prices. Although it is expected that the market price of Shares will approximate the Fund’s NAV, there may be times when the market price of Shares is more than the NAV intra-day (premium) or less than the NAV intra-day (discount) due to supply and demand of Shares or during periods of market volatility. This risk is heightened in times of market volatility, periods of steep market declines, and periods when there is limited trading activity for Shares in the secondary market, in which case such premiums or discounts may be significant.

◦ Trading.Although Shares are listed for trading on the NYSE Arca, Inc. (the “Exchange”) and may be traded on U.S. exchanges other than the Exchange, there can be no assurance that Shares will trade with any volume, or at all, on any stock exchange. In stressed market conditions, the liquidity of Shares may begin to mirror the liquidity of the Fund’s underlying portfolio holdings, which can be significantly less liquid than Shares.

• Large-Capitalization Companies Risk. The securities of large-capitalization companies may be relatively mature compared to smaller companies and therefore subject to slower growth during times of economic expansion.

• Limited Operating History. The Fund is a recently organized management investment company with a limited operating history. As a result, prospective investors have a limited track record or history on which to base their investment decision.

• Passive Investment Risk. The Fund is not actively managed, and its sub-adviser would not sell shares of an equity security due to current or projected underperformance of a security, industry, or sector, unless that security is removed from the Index or the selling of shares of that security is otherwise required upon a reconstitution or rebalancing of the Index in accordance with the Index methodology.

• Sector Risk.To the extent the Fund invests more heavily in particular sectors of the economy, its performance will be especially sensitive to developments that significantly affect those sectors. The Fund may invest a significant portion of its assets in the following sectors and, therefore, the performance of the Fund could be negatively impacted by events affecting each of these sectors.

◦ Consumer Sectors Risk. The success of consumer product manufacturers and retailers is tied closely to the performance of domestic and international economies, interest rates, exchange rates, competition, consumer confidence, changes in demographics and consumer preferences. Companies in the consumer staples sector, such as companies that produce or sell food, beverage, and drug retail or other household items, may be adversely impacted by changes in global and economic conditions, rising energy prices, and changes in the supply or price of commodities. Companies in the consumer discretionary sector, such as automobile, textile, retail, and media companies, depend heavily on disposable household income and consumer spending, and may be strongly affected by social trends and marketing campaigns. These companies may be subject to severe competition, which may have an adverse impact on their profitability.

◦ Health Care Sector Risk.Companies in the health care sector are subject to extensive government regulation and their profitability can be significantly affected by restrictions on government reimbursement for medical expenses, rising costs of medical products and services, pricing pressure (including price discounting), limited product lines, an increased emphasis on the delivery of healthcare through outpatient services, loss or impairment of intellectual property rights and litigation regarding product or service liability.

◦ Industrial Sector Risk.The industrial sector can be significantly affected by, among other things, worldwide economic growth, supply and demand for specific products and services, rapid technological developments, international political and economic developments, environmental issues, tariffs and trade barriers, and tax and governmental regulatory policies. As the demand for, or prices of, industrials increase, the value of the Fund’s investments generally would be expected to also increase. Conversely, declines in the demand for, or prices of, industrials generally would be expected to contribute to declines in the value of such securities. Such declines may occur quickly and without warning and may negatively impact the value of the Fund and your investment.

◦ Information Technology Sector Risk. Market or economic factors impacting information technology companies and companies that rely heavily on technological advances could have a significant effect on the value of the Fund’s investments. The value of stocks of information technology companies and companies that rely heavily on technology is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Stocks of information technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability.

• Tracking Error Risk. As with all index funds, the performance of the Fund and the Index may differ from each other for a variety of reasons. For example, the Fund incurs operating expenses and portfolio transaction costs not incurred by the Index. In addition, the Fund may not be fully invested in the securities of the Index at all times or may hold securities not included in the Index.

Risk Lose Money [Text]

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As with any investment, there is a risk that you could lose all or a portion of your investment in the Fund.

Bar Chart and Performance Table [Heading]

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Performance

Performance Narrative [Text Block]

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The following performance information indicates some of the risks of investing in the Fund.The bar chart shows the Fund’s performance for the calendar year ended December 31.The table illustrates how the Fund’s average annual returns for the 1-year and since inception periods compare with those of a broad measure of market performance and the Index.The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future.Updated performance information is available on the Fund’s website atwww.distillatefunds.com/dstl.

Performance Information Illustrates Variability of Returns [Text]

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The following performance information indicates some of the risks of investing in the Fund.

Performance Availability Website Address [Text]

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www.distillatefunds.com/dstl

Performance Past Does Not Indicate Future [Text]

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The Fund’s past performance, before and after taxes, does not necessarily indicate how it will perform in the future.

Bar Chart [Heading]

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Calendar Year Total Returns

Bar Chart Closing [Text Block]

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During the period of time shown in the bar chart, the Fund’shighest quarterly returnwas13.25%for the quarter endedMarch 31, 2019, and thelowest quarterly returnwas2.25%for the quarter endedSeptember 30, 2019.

Highest Quarterly Return, Label

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highest quarterly return

Highest Quarterly Return, Date

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Mar. 31, 2019

Highest Quarterly Return

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13.25%

Lowest Quarterly Return, Label

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lowest quarterly return

Lowest Quarterly Return, Date

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Sep. 30, 2019

Lowest Quarterly Return

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2.25%

Performance Table Heading

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Average Annual Total Returns For the Period Ended December 31, 2019

Index No Deduction for Fees, Expenses, Taxes [Text]

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(reflects no deduction for fees, expenses, or taxes)

Performance Table Uses Highest Federal Rate

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After-tax returns are calculated using the historical highest individual federal marginal income tax rates during the period covered by the table above and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

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Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold their Shares through tax-deferred arrangements such as an individual retirement account (“IRA”) or other tax-advantaged accounts.

Performance Table Closing [Text Block]

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After-tax returns are calculated using the historical highest individual federal marginal income tax rates during the period covered by the table above and do not reflect the impact of state and local taxes.Actual after-tax returns depend on an investor’s tax situation and may differ from those shown.After-tax returns shown are not relevant to investors who hold their Shares through tax-deferred arrangements such as an individual retirement account (“IRA”) or other tax-advantaged accounts.

Distillate U.S. Fundamental Stability & Value ETF | Distillate U.S. Fundamental Stability & Value Index (reflects no deduction for fees, expenses, or taxes)

Prospectus [Line Items]

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Label

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Distillate U.S. Fundamental Stability & Value Index (reflects no deduction for fees, expenses, or taxes)

1 Year

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35.52%

Since Inception

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20.79%

Inception Date

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Oct. 23, 2018

Distillate U.S. Fundamental Stability & Value ETF | S&P 500® Index (reflects no deduction for fees, expenses, or taxes)

Prospectus [Line Items]

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Label

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S&P 500® Index (reflects no deduction for fees, expenses, or taxes)

1 Year

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31.49%

Since Inception

rr_AverageAnnualReturnSinceInception

17.21%

Inception Date

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Oct. 23, 2018

Distillate U.S. Fundamental Stability & Value ETF | Distillate U.S. Fundamental Stability & Value ETF

Prospectus [Line Items]

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Trading Symbol

dei_TradingSymbol

DSTL

Management Fees (as a percentage of Assets)

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0.39%

Distribution and Service (12b-1) Fees

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none

Other Expenses (as a percentage of Assets):

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none

Expenses (as a percentage of Assets)

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0.39%

Expense Example, with Redemption, 1 Year

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$ 40

Expense Example, with Redemption, 3 Years

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125

Expense Example, with Redemption, 5 Years

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219

Expense Example, with Redemption, 10 Years

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$ 493

Annual Return 2019

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34.91%

Label

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Return Before Taxes

1 Year

rr_AverageAnnualReturnYear01

34.91%

Since Inception

rr_AverageAnnualReturnSinceInception

20.29%

Inception Date

rr_AverageAnnualReturnInceptionDate

Oct. 23, 2018

Distillate U.S. Fundamental Stability & Value ETF | Distillate U.S. Fundamental Stability & Value ETF | After Taxes on Distributions

Prospectus [Line Items]

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Label

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Return After Taxes on Distributions

1 Year

rr_AverageAnnualReturnYear01

34.60%

Since Inception

rr_AverageAnnualReturnSinceInception

19.95%

Distillate U.S. Fundamental Stability & Value ETF | Distillate U.S. Fundamental Stability & Value ETF | After Taxes on Distributions and Sales

Prospectus [Line Items]

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Label

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Return After Taxes on Distributions and Sale of Fund Shares

1 Year

rr_AverageAnnualReturnYear01

20.89%

Since Inception

rr_AverageAnnualReturnSinceInception

15.50%