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			TrimTabs Donoghue Forlines Tactical High Yield ETF (DFHY)
			Summary Prospectus \| November 17, 2020 \| Cboe BZX Exchange, Inc.
			Before you invest, you may want to review the TrimTabs Donoghue Forlines Tactical High Yield ETF's (the "Fund") Prospectus and Statement of Additional Information (SAI), which contain more information about the Fund and its risks. The current Prospectus and SAI dated November 16, 2020, as each may be amended or supplemented from time to time, as well as the Fund’s recent shareholder reports, when available, are incorporated by reference into this Summary Prospectus. You can find the Fund’s Prospectus, SAI, recent reports to shareholders, and other information about the Fund online at www.trimtabsfunds.com/DFHY. You can also get this information at no cost by calling 1-800-617-0004 or by sending an e-mail request to ETF@usbank.com.

Beginning on January 1, 2021, as permitted by regulations adopted by the U.S. Securities and Exchange Commission ("SEC"), paper copies of the Fund's annual and semi-annual shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports. Instead, the reports will be made available on the Fund's website (www.trimtabsfunds.com/ttai), and you will be notified by mail each time a report is posted and provided with a website link to access the report.

If you already elected to receive shareholder reports electronically, you will not be affected by this change and you need not take any action. You may elect to receive shareholder reports and other communications from the Fund electronically anytime by contacting your financial intermediary (such as a broker-dealer or bank) or, if you are a direct investor, by calling 1‑800‑617-0004 or by sending an e-mail request to ETF@usbank.com.

You may elect to receive all future reports in paper free of charge. If you invest through a financial intermediary, you can contact your financial intermediary to request that you continue to receive paper copies of your shareholder reports. If you invest directly with the Fund, you can call 1‑800‑617-0004 or send an email request to ETF@usbank.com to let the Fund know you wish to continue receiving paper copies of your shareholder reports. Your election to receive reports in paper will apply to all funds held in your account if you invest through your financial intermediary or the Fund held with the fund complex if you invest directly with the Fund.

1. The management fee is structured as a “unified fee,” pursuant to which the Fund’s investment adviser pays all expenses of the Fund, except for the management fee, payments under the Fund’s Rule 12b-1 plan, brokerage expenses, acquired fund fees and expenses, taxes, interest (including borrowing costs and dividend expenses on securities sold short), litigation expenses and other extraordinary expenses (including litigation to which the Trust or the Fund may be a party and indemnification of the Trustees and officers with respect thereto).

The following 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 for the time periods indicated and then redeem all of your Shares at the end of those periods. The example also assumes that the Fund provides a return of 5% a year and that operating expenses remain the same. The example does not reflect any brokerage commissions that you may pay on purchases and sales of Shares. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

The Fund may pay transaction costs, including 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 the annual fund operating expenses or in the example, affect the Fund’s performance. The Fund is newly organized, and, as of the date of this Prospectus, has not had any portfolio turnover.

To pursue its investment objective, the Fund invests, under normal market circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in component securities of the Underlying Index. The Underlying Index is sponsored and maintained by TTAM, LLC (the "Index Provider"), an affiliate of TrimTabs Asset Management, LLC, the Fund's investment adviser (the "Adviser"). The Underlying Index is designed to track the performance of a strategy that seeks to provide risk-managed exposure to exchange-traded funds (“ETFs”) that investment primarily in high yield debt instruments (also known as “junk bonds”) (“High Yield Bond ETFs”).

To be eligible for inclusion in the Underlying Index, a High Yield Bond ETF must: (i) be U.S. listed; (ii) invest primarily in U.S. high yield debt instruments; (iii) have more than $1 billion in assets under management (“AUM”); (iv) have an expense ratio of less than 0.50%; and (v) have an investment process that excludes factors, hedges and long/short strategies. Eligible High Yield Bond ETFs are weighted based on their expenses (lower expenses increase weighting) and AUM (greater AUM increases weighting). These securities comprise the “High Yield Bond Portfolio” of the Underlying Index.

The types of high yield debt instruments in which a High Yield Bond ETF may invest include corporate bonds or other bonds or debt instruments that are generally rated below investment grade, which are those rated lower than Baa3 by Moody’s Investors Service, Inc. (“Moody’s”) or lower than BBB- by S&P Global Ratings ("S&P"). High Yield Bond ETFs may invest up to 100% of their respective assets in instruments generally rated below Caa3 by Moody’s or CCC- by S&P.

The Underlying Index utilizes a proprietary, rules-based methodology that employs a tactical overlay that is intended to provide downside protection to the High Yield Bond ETF allocations. The tactical overly will provide either a “buy signal” or a “sell signal,” which are used to determine whether the Underlying Index will be in a bullish (i.e., fully invested long position) or defensive posture, respectively. When a “buy signal” is triggered, the Underlying Index will be comprised entirely of High Yield Bond ETFs. When a “sell signal” is triggered, the Underlying Index will eliminate 80% of its High Yield Bond ETF allocations in exchange for ETFs that invest primarily in intermediate-term U.S. Treasury securities and/or other cash equivalents (“Intermediate-Term Treasury ETFs”). The tactical overlay will provide buy or sell signals on a daily basis.

To be eligible for inclusion in the Underlying Index, an Intermediate-Term Treasury ETF must: (i) be U.S. listed; (ii) invest primarily in intermediate-term U.S. Treasury securities (i.e., those with durations typically between 3.5 and 6 years) and/or other cash equivalents; (iii) have more than $1 billion in AUM; (iv) have an expense ratio of 0.15% or less; and (v) have an investment process that excludes factors, hedges and long/short strategies. Eligible Intermediate-Term Treasury ETFs are

Allocations to High Yield Bond Portfolio are rebalanced quarterly and reconstituted annually. The composition of the U.S. Treasury Portfolio is also rebalanced quarterly and reconstituted annually. The Fund is generally rebalanced and reconstituted in accordance with the Underlying Index. Allocations implemented pursuant to the tactical overlay are determined at the close of trading on each business day, based on the signal triggered, and become effective at the close of trading on the following business day. The Fund will generally implement tactical overlay allocations in accordance with the Underlying Index.

Underlying ETFs Risk. In seeking to track the Underlying Index, the Fund invests substantially all of its assets in High Yield Bond ETFs and/or Intermediate-Term Treasury ETFs (together, the “Underlying ETFs”). Accordingly, the Fund’s investment performance is directly related to the performance of the Underlying ETFs. The Fund’s net asset value (or “NAV”) will change with changes in the value of the Underlying ETFs based on their market valuations. An investment in the Fund will entail more costs and expenses than a direct investment in the Underlying ETFs. As the Underlying ETFs, or the Fund’s allocations among the Underlying ETFs, change from time to time, or to the extent that the total annual fund operating expenses of any Underlying ETF changes, the weighted average operating expenses borne by the Fund may increase or decrease.

High Yield (Junk Bond) Securities Risk. High yield securities and unrated securities of similar credit quality are considered to be speculative with respect to the issuer’s continuing ability to make principal and interest payments and are generally subject to greater levels of credit quality risk than investment grade securities. High yield securities are usually issued by companies, including smaller and medium capitalization companies, without long track records of sales and earnings, or with questionable credit strength. These companies may be particularly affected by interest rate increases, as they may find it more difficult to borrow money to continue or expand operations, or may have difficulty in repaying floating rate loans. These fixed-income securities are considered below “investment-grade.” The retail secondary market for these “junk bonds” may be less liquid than that of higher-rated fixed income securities, and adverse conditions could make it difficult at times to sell these securities or could result in lower prices than higher-rated fixed income securities. These risks can reduce the value of the shares of a High Yield Bond ETF and the income it earns.

Liquidity Risk. Liquidity risk exists when a particular investment is difficult to purchase or sell. If a High Yield Bond ETF invests in illiquid securities or its portfolio securities otherwise become illiquid, it may reduce the returns of the High Yield Bond ETF because the High Yield Bond ETF may be unable to sell the illiquid securities at an advantageous time or price. In the event that a High Yield Bond ETF voluntarily or involuntarily liquidates its portfolio assets during periods of infrequent trading of its securities, the High Yield Bond ETF may not receive full value for those assets, which will reduce the value of the High Yield Bond ETF’s shares, and in turn, the value of the Fund’s investment in such shares.

Index-Based Strategy Risk. The Fund is managed as an index-based fund that seeks to track the performance of the Underlying Index. This differs from an actively managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund may hold the component securities of the Underlying Index regardless of the current or projected performance of a specific security or the relevant market as a whole. Maintaining investments in securities regardless of market conditions or the performance of individual securities could cause the Fund’s returns to be lower than if the Fund employed an active strategy. The Fund will seek to track the Underlying Index in all market conditions, including during adverse market conditions when other funds may seek to take temporary defensive measures (such as investing significantly in cash or cash equivalents). Accordingly, unless the Underlying Index allocates significant portions of its assets to cash and/or cash equivalents during times of adverse market or economic conditions, the Fund may be subject to a higher level of market risk during such times than other funds. Additionally, the Fund generally rebalances and reconstitutes its portfolio, and implements tactical overlay allocations, in accordance with the Underlying Index and, therefore, any changes to the Underlying Index’s rebalance, reconstitution or tactical overlay trigger schedule will typically result in corresponding changes to the Fund’s rebalance, reconstitution or tactical overlay trigger schedule.

Tactical Overlay Risk. Neither the Adviser nor the Sub-Adviser can offer assurances that the tactical overlay process employed by the Underlying Index methodology will achieve its intended results. Investment in a fund that utilizes a tactical overlay that seeks to minimize risk may not be appropriate for every investor seeking a particular risk profile.

Market Events Risk. The value of securities in the Fund’s portfolio may decline due to daily fluctuations in the securities markets that are generally beyond the Fund’s control, including the quality of the Fund’s investments, economic conditions, adverse investor sentiment, poor management decisions, lower demand for a company’s goods or services, and general market conditions. In a declining market, the prices for all securities (including those in the Fund’s portfolio) may decline, regardless of their long-term prospects. Security values tend to move in cycles, with periods when securities markets generally rise and periods when they generally decline. In addition, local, regional or global events such as war, acts of terrorism, the spread of infectious illness or other public health issue, recessions, or other events could have a significant impact on the Fund, its investments and the trading of its Shares. For example, an outbreak of an infectious respiratory illness, COVID-19, has resulted in travel restrictions, disruption of healthcare systems, prolonged quarantines, cancellations, supply chain disruptions, lower consumer demand, layoffs, ratings downgrades, defaults and other significant economic impacts. Certain markets have experienced temporary closures, extreme volatility, severe losses, reduced liquidity and increased trading costs. These events will have an impact on the Fund and its investments and could impact the Fund’s ability to purchase or sell securities or cause elevated tracking error or increased premiums or discounts to the Fund’s NAV. The ongoing effects of COVID-19, and the length of its impact on the Fund or its investments, are unpredictable.

Concentration Risk. A fund concentrated in an industry or group of industries is likely to present more risks than a fund that is broadly diversified over several industries or groups of industries. Compared to the broad market, an individual industry or group of related industries may be more strongly affected by changes in the economic climate, broad market shifts, moves in a particular dominant stock or regulatory changes.

Derivatives Risk. A derivative instrument derives its value from an underlying security, currency, commodity, interest rate, index or other asset (collectively, “underlying asset”). The Fund’s investments in derivatives may pose risks in addition to and greater than those associated with investing directly in the underlying assets, including counterparty, leverage and liquidity risks. Derivatives may also be harder to value, less tax efficient and subject to changing government regulation that could impact the Fund’s ability to use certain derivatives or their cost. Derivatives strategies may not always be successful.

•Futures Contracts Risk. Exchange-traded futures contracts are a type of derivative, which call for the future delivery of an asset, or cash settlement, at a certain stated price on a specified future date. Futures contracts involve the risk of imperfect correlation between movements in the price of the instruments and the price of the underlying assets. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid market. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Sub-

Active and Frequent Trading Risk. Active and frequent trading of portfolio securities may result in increased transaction costs to the Fund, including brokerage commissions, dealer mark-ups and other transaction costs on the sale of the securities and on reinvestment in other securities, and may also result in higher taxes if Shares are held in a taxable account.

Index Correlation Risk. While the Sub-Adviser seeks to track the performance of the Underlying Index closely (i.e., to achieve a high degree of correlation with the Underlying Index), the Fund’s returns may not match or achieve a high degree of correlation with the returns of the Underlying Index due to operating expenses, transaction costs, cash flows, regulatory requirements and/or operational inefficiencies.

Index Calculation Risk. The Underlying Index relies on various sources of information to assess the criteria of issuers included in the Underlying Index and to determine whether a “buy” or “sell” trigger should be issued, including information that may be based on assumptions and estimates. The Fund, the Index Provider, the Adviser, the Sub-Adviser, the Underlying Index calculation agent and any of their affiliates cannot offer assurances that the Underlying Index’s calculation methodology or sources of information will provide an accurate assessment of included issuers or the appropriate trigger at any particular time.

•Flash Crash Risk. Sharp price declines in securities owned by the Fund may trigger trading halts, which may result in Shares trading in the market at an increasingly large discount to NAV during part (or all) of a trading day. Shareholders could suffer significant losses to the extent that they sell Shares at these temporarily low market prices.

•Large Shareholder Risk. Certain shareholders, including the Adviser, the Sub-Adviser or their respective affiliates, or groups of related shareholders, such as those investing through one or more model portfolios, may own a substantial amount of the Shares. Redemptions by large shareholders could have a significant negative impact on the Fund. In addition, transactions by large shareholders may account for a large percentage of the trading volume on the Exchange and may, therefore, have a material upward or downward effect on the market price of the Shares.

•Premium-Discount Risk. Shares may trade above or below their NAV. Accordingly, investors may pay more than NAV when purchasing Shares or receive less than NAV when selling Shares. The market prices of Shares will generally fluctuate in accordance with changes in NAV, changes in the relative supply of, and demand for, Shares, and changes in the liquidity, or the perceived liquidity, of the Fund’s holdings.

•Secondary Market Trading Risk. Investors buying or selling Shares in the secondary market may pay brokerage commissions or other charges, which may be a significant proportional cost for investors seeking to buy or sell relatively small amounts of Shares. Although the Shares are listed on the Exchange, there can be no assurance that an active or liquid trading market for them will develop or be maintained. In addition, trading in Shares on the Exchange may be halted.

John A. Forlines, CIO of the Sub-Adviser, Jeffrey R. Thompson, CEO of the Sub-Adviser, Richard E. Molari, COO of the Sub-Adviser, and Nicholas A. Lobley, Portfolio Manager of the Sub-Adviser, each serve the Fund as a portfolio manager, and have served in such role since the Fund’s inception in November 2020. Each portfolio manager is jointly and primarily responsible for the day-to-day management of the Fund.

Distributions you receive from the Fund are generally taxable to you as ordinary income for federal income tax purposes, except that distributions reported by the Fund as “capital gain dividends” are taxed to you as long-term capital gains, and distributions may also be subject to state and/or local taxes. Fund distributions generally are not taxable to you if you are investing through a tax-advantaged retirement plan account or you are a tax-exempt investor, although you may be taxed on withdrawals from your tax-advantaged account.

If you purchase Shares through a broker-dealer or other financial intermediary, the Adviser, Sub-Adviser or their affiliates or related companies may pay the intermediary for the sale of Shares and related services. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend Shares over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.


Management Fee1						0.69%
Other Expenses2						0.00%
Acquired Fund Fees and Expenses2						0.26%
Total Annual Fund Operating Expenses						0.95%


One Year			Three Years
$97			$303