HTRB Hartford Total Return Bond Etf

Summary Prospectus

February 19, 2020

Hartford Core Bond ETF

Before you invest, you may want to review the Fund’s prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus and other information about the Fund, including the Fund’s daily net asset value, online at hartfordfunds.com/etf-prospectuses.html. You can also get this information at no cost by calling 1-800-456-7526 or request a copy of the prospectus by sending an e-mail to orders@mysummaryprospectus.com. The Fund’s prospectus and statement of additional information dated February 19, 2020, as may be amended, supplemented or restated, are incorporated by reference into this summary prospectus. The Fund’s statement of additional information may be obtained, free of charge, in the same manner as the Fund’s prospectus.

Beginning on January 1, 2021, as permitted by regulations adopted by the Securities and Exchange Commission, paper copies of the Fund’s shareholder reports will no longer be sent by mail, unless you specifically request paper copies of the reports from the Fund or from your financial intermediary, such as a broker-dealer or bank. Instead, the reports will be made available on the Fund’s website (hartfordfunds.com). You will be notified by mail each time a report is posted and provided with a website link to access the report. You may at any time elect to receive paper copies of all shareholder reports free of charge by contacting your financial intermediary. Your election to receive reports in paper will apply to all Hartford Funds held in your account. If you previously elected to receive shareholder reports and other communications 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 electronically anytime by contacting your financial intermediary.

INVESTMENT OBJECTIVE. The Fund seeks to provide long-term total return.

YOUR EXPENSES. The table below describes the fees and expenses that you may pay if you buy and hold shares of the Fund. Investors may pay brokerage commissions on their purchases and sales of Fund shares, which are not reflected in the table or the examples below.

Shareholder Fees (fees paid directly from your investment): None

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

Example. The examples below are intended to help you compare the cost of investing in the Fund with the cost of investing in other exchange-traded funds. The examples assume that:

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Your investment has a 5% return each year

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The Fund’s operating expenses remain the same

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Your actual costs may be higher or lower. Based on these assumptions, for every $10,000 invested, you would pay the following expenses if you sell all of your shares at the end of each time period indicated:

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 Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the examples, affect the Fund’s performance. Because the Fund has not yet commenced operations as of the date of this prospectus, the Fund’s portfolio turnover rate for the most recent fiscal year is not available.

PRINCIPAL INVESTMENT STRATEGY. The Fund seeks to achieve its investment objective by investing in fixed income securities that Wellington Management Company LLP (“Wellington Management”) considers to be attractive from a total return perspective. The Fund invests, under normal circumstances, at least 80% of its net assets (including any borrowings for investment purposes) in fixed-income securities. The Fund will invest primarily in investment grade fixed income securities. The Fund may invest in securities and other instruments issued by both U.S. and foreign issuers.

The fixed income securities in which the Fund may invest include, but are not limited to, (1) securities issued or guaranteed as to principal or interest by the U.S. Government, its agencies or instrumentalities; (2) non-convertible and convertible debt securities issued or guaranteed by U.S. corporations or other issuers (including foreign issuers); (3) asset-backed and mortgage-related securities, including collateralized mortgage and loan obligations; and (4) securities and loans issued or guaranteed as to principal or interest by a sovereign government or one of its agencies or political subdivisions (including quasi-sovereigns), supranational entities such as development banks, non-U.S. corporations, banks or bank holding companies, or other foreign issuers.

The Fund may use derivatives to manage portfolio risk or for other investment purposes. The derivatives in which the Fund may invest include, but are not limited to, futures and options contracts and various types of swap agreements. Additionally, the Fund may invest up to 25% of its net assets in debt securities, primarily U.S. dollar denominated debt securities, of foreign issuers. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis, including securities acquired or sold in the “to be announced” (TBA) market. The Fund may invest in “Rule 144A” securities, which are privately placed, restricted securities that may only be resold under certain circumstances to other qualified institutional buyers. The Fund may trade securities actively. Although the Fund may invest in securities and other instruments of any maturity or duration, the Fund normally invests in debt securities with a maturity of at least one year and maintains an average duration within 1.5 years of the Bloomberg Barclays U.S. Aggregate Bond Index, the Fund’s performance benchmark. As of January 31, 2020, the average duration of the Bloomberg Barclays U.S. Aggregate Bond Index was 5.85 years. There is no limit on the average maturity of the Fund’s portfolio.

The investment team is organized with generalist portfolio managers leading sector, rates and risk positioning decisions. The portfolio managers may allocate a portion of the Fund’s assets to specialists within Wellington Management who drive individual sector and security selection strategies.

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PRINCIPAL RISKS. The principal risks of investing in the Fund are described below. When you sell your shares they may be worth more or less than what you paid for them, which means that you could lose money as a result of your investment. An investment in the Fund is not a bank deposit and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. As with any fund, there is no guarantee that the Fund will achieve its investment objective.

Market Risk – Market risk is the risk that one or more markets in which the Fund invests will go down in value, including the possibility that the markets will go down sharply and unpredictably. Securities of a company may decline in value due to its financial prospects and activities, including certain operational impacts, such as data breaches and cybersecurity attacks. Securities may also decline in value due to general market and economic movements and trends, including adverse changes to credit markets.

Interest Rate Risk – The risk that your investment may go down in value when interest rates rise, because when interest rates rise, the prices of bonds and fixed rate loans fall. A wide variety of factors can cause interest rates to rise, including central bank monetary policies and inflation rates. Generally, the longer the maturity of a bond or fixed rate loan, the more sensitive it is to this risk. Falling interest rates also create the potential for a decline in the Fund’s income. These risks are greater during periods of rising inflation. Volatility in interest rates and in fixed income markets may increase the risk that the Fund’s investment in fixed income securities will go down in value. Risks associated with rising interest rates are currently heightened because interest rates in the U.S. remain near historic lows. Actions taken by the Federal Reserve Board or foreign central banks to stimulate or stabilize economic growth, such as decreases or increases in short-term interest rates, may adversely affect markets, which could, in turn, negatively impact Fund performance.

Credit Risk – Credit risk is the risk that the issuer of a security or other instrument will not be able to make principal and interest payments when due. Changes in an issuer’s financial strength, credit rating or the market’s perception of an issuer’s creditworthiness may also affect the value of the Fund’s investment in that issuer. The degree of credit risk depends on both the financial condition of the issuer and the terms of the obligation.

Derivatives Risk – Derivatives are instruments whose value depends on, or is derived from, the value of an underlying asset, reference rate or index. Derivatives may be riskier than other types of investments because they may be more sensitive to changes in economic or market conditions than other types of investments and could result in losses that significantly exceed the Fund’s original investment. Successful use of derivative instruments by the Fund depends on the sub-adviser’s judgment with respect to a number of factors and the Fund’s performance could be worse and/or more volatile than if it had not used these instruments. In addition, the fluctuations in the value of derivatives may not correlate perfectly with the value of any portfolio assets being hedged, the performance of the asset class to which the sub-adviser seeks exposure, or the overall securities markets.

Leverage Risk – Certain transactions, such as the use of derivatives, may give rise to leverage. Leverage can increase market exposure, magnify investment risks, and cause losses to be realized more quickly. Leverage may also cause the Fund to be more volatile than if it had not been leveraged. The use of leverage may cause the Fund to liquidate portfolio positions to satisfy its obligations or to meet asset segregation requirements when it may not be advantageous to do so.

Futures and Options Risks – Futures and options may be more volatile than direct investments in the securities underlying the futures and options, may not correlate perfectly to the underlying securities, may involve additional costs, and may be illiquid. Futures and options also may involve the use of leverage as the Fund may make a small initial investment relative to the risk assumed, which could result in losses greater than if futures or options had not been used. Futures and options are also subject to the risk that the other party to the transaction may default on its obligation.

Swaps Risk – A swap is a two-party contract that generally obligates the parties to exchange payments based on a specified reference security, basket of securities, security index or index component. Swaps can involve greater risks than direct investment in securities because swaps may be leveraged and are subject to counterparty risk (e.g., the risk of a counterparty defaulting on the obligation or bankruptcy), credit risk and pricing risk (i.e., swaps may be difficult to value). Certain swaps may also be considered illiquid. It may not be possible for the Fund to liquidate a swap position at an advantageous time or price, which may result in significant losses.

Call Risk – Call risk is the risk that an issuer, especially during a period of falling interest rates, may redeem a security by repaying it early, which may reduce the Fund’s income if the proceeds are reinvested at lower interest rates.

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Active Investment Management Risk – The risk that, if the sub-adviser’s investment strategy, including allocating assets to specialist portfolio managers, does not perform as expected, the Fund could underperform its peers or lose money. The investment styles employed by the specialist portfolio managers may not be complementary, which could adversely affect the performance of the Fund. There is no guarantee that the Fund’s investment objective will be achieved.

Liquidity Risk – The risk that the market for a particular investment or type of investment is or becomes relatively illiquid, making it difficult for the Fund to sell that investment at an advantageous time or price. Illiquidity may be due to events relating to the issuer of the securities, market events, rising interest rates, economic conditions or investor perceptions. Illiquid securities may be difficult to value and their value may be lower than the market price of comparable liquid securities, which would negatively affect the Fund’s performance.

Foreign Investments Risk – Investments in foreign securities may be riskier than investments in U.S. securities. Differences between the U.S. and foreign regulatory regimes and securities markets, including the less stringent investor protection and disclosure standards of some foreign markets, as well as political and economic developments in foreign countries and regions and the U.S. (including the imposition of sanctions, tariffs, or other governmental restrictions), may affect the value of the Fund’s investments in foreign securities. Changes in currency exchange rates may also adversely affect the Fund’s foreign investments. Certain European countries in which the Fund may invest have recently experienced significant volatility in financial markets and may continue to do so in the future. The impact of the United Kingdom’s departure from the European Union, commonly known as “Brexit,” and the potential departure of one or more other countries from the European Union may have significant political and financial consequences for global markets, which may adversely affect Fund performance.

Mortgage Related- and Asset-Backed Securities Risk – Mortgage-related and asset-backed securities represent interests in “pools” of assets. These securities are subject to credit risk, interest rate risk, “prepayment risk” (the risk that borrowers will repay a loan more quickly in periods of falling interest rates) and “extension risk” (the risk that borrowers will repay a loan more slowly in periods of rising interest rates). The value of these securities will be influenced by factors affecting the assets underlying such securities. If the Fund invests in mortgage-backed, mortgage-related or asset-backed securities that are subordinated to other interests in the same asset pool, the Fund may only receive payments after the pool’s obligations to other investors have been satisfied. During periods of difficult or frozen credit markets, such securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may limit substantially the pool’s ability to make payments of principal or interest to the Fund, reducing the values of those securities or in some cases rendering them worthless. The risk of such defaults is generally higher in the case of mortgage pools that include so-called “subprime” mortgages.

Under the direction of the Federal Housing Finance Agency, Fannie Mae and Freddie Mac have entered into a joint initiative to develop a common securitization platform for the issuance of a uniform mortgage-backed security (the “Single Security Initiative”), which generally aligns the characteristics of Fannie Mae and Freddie Mac certificates. The Single Security Initiative launched in June 2019, and the effects it may have on the market for mortgage-backed securities are uncertain.

Collateralized Loan Obligations Risk – Collateralized loan obligations (“CLOs”) bear many of the same risks as other forms of asset-backed securities. As they are backed by pools of loans, CLOs also bear similar risks to investing in loans directly. CLOs may experience substantial losses attributable to loan defaults. Losses caused by defaults on underlying assets are borne first by the holders of subordinate tranches. The Fund’s investment in CLOs may decrease in market value when the CLO experiences loan defaults or credit impairment, the disappearance of a subordinate tranche, or market anticipation of defaults and investor aversion to CLO securities as a class.

To Be Announced (TBA) Transactions Risk – TBA investments include when-issued and delayed delivery securities and forward commitments. TBA transactions involve the risk that the security the Fund buys will lose value prior to its delivery. The Fund is subject to this risk whether or not the Fund takes delivery of the securities on the settlement date for a transaction. There also is the risk that the security will not be issued or that the other party to the transaction will not meet its obligation. If this occurs, the Fund loses both the investment opportunity for the assets it set aside to pay for the security and any gain in the security’s price. The Fund may also take a short position in a TBA investment when it owns or has the right to obtain, at no added cost, identical securities. If the Fund takes such a short position, it may reduce the risk of a loss if the price of the securities declines in the future, but will lose the opportunity to profit if the price rises.

Restricted Securities Risk – Restricted securities, which include securities subject to Rule 144A and Regulation S, are subject to the risk that they may be difficult to sell at the time and price the Fund prefers.

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Event Risk – Event risk is the risk that corporate issuers may undergo restructurings, such as mergers, leveraged buyouts, takeovers, or similar events financed by increased debt. As a result of the added debt, the credit quality and market value of a company’s bonds and/or other debt securities may decline significantly.

U.S. Government Securities Risk – Treasury obligations may differ in their interest rates, maturities, times of issuance and other characteristics. Securities backed by the U.S. Treasury or the full faith and credit of the United States are guaranteed only as to the timely payment of interest and principal when held to maturity. Accordingly, the current market values for these securities will fluctuate with changes in interest rates. Obligations of U.S. Government agencies and authorities are supported by varying degrees of credit but generally are not backed by the full faith and credit of the U.S. Government. No assurance can be given that the U.S. Government will provide financial support to its agencies and authorities if it is not obligated by law to do so. In addition, the value of U.S. Government securities may be affected by changes in the credit rating of the U.S. Government. U.S. Government securities are also subject to the risk that the U.S. Treasury will be unable to meet its payment obligations.

Market Price Risk – The net asset value (“NAV”) of the Fund’s shares and the value of your investment may fluctuate. The market prices of the Fund’s shares will generally fluctuate in accordance with changes in NAV and changes in the intraday value of the Fund’s holdings, as well as the relative supply of and demand for the shares on the Fund’s listing exchange. Although it is expected that the Fund’s shares will remain listed on the exchange, disruptions to creations and redemptions, the existence of market volatility or lack of an active trading market for the shares (including through a trading halt), as well as other factors, may result in the shares trading significantly above (at a premium to) or below (at a discount to) the Fund’s NAV or the intraday value of the Fund’s holdings. During such periods, you may be unable to sell your shares or may incur significant losses if you sell your shares. There are various methods by which investors can purchase and sell shares and various types of orders that may be placed. Investors should consult their financial intermediary before purchasing or selling shares of the Fund. Neither the investment manager nor the Fund’s sub-adviser can predict whether the Fund’s shares will trade below, at or above their NAV. Price differences may be due, in large part, to the fact that supply and demand forces at work in the secondary trading market for the Fund’s shares will be closely related to, but not identical to, the same forces influencing the prices of the Fund’s holdings trading individually or in the aggregate at any point in time. In addition, unlike many ETFs, the Fund is not an index fund. The Fund is actively managed and does not seek to replicate the performance of a specified index. There can be no assurance as to whether and/or to what extent the Fund’s shares will trade at premiums or discounts to NAV or to the intraday value of the Fund’s holdings.

Cash Transactions Risk – The Fund, unlike certain other ETFs, may effect creations and redemptions partly or wholly for cash, rather than through in-kind distributions of securities. When the Fund effects redemptions for cash rather than in-kind, the Fund may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds and it may subsequently recognize gains on such sales that the Fund might not have recognized if it were to distribute portfolio securities in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in an ETF that primarily or wholly effects creations and redemptions in-kind. Moreover, cash transactions may have to be carried out over several days if the securities markets are relatively illiquid at the time the Fund must sell securities and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its shares principally in-kind, will be passed on to purchasers and redeemers of Creation Units in the form of creation and redemption transaction fees. As a result of these factors, the spreads between the bid and the offered prices of the Fund’s shares may be wider than those of shares of ETFs that primarily or wholly transact in-kind.

Authorized Participant Concentration Risk – Only an authorized participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of intermediaries that act as authorized participants, and none of these authorized participants are or will be obligated to engage in creation or redemption transactions. To the extent that these intermediaries exit the business or are unable to or choose not to proceed with creation and/or redemption orders with respect to the Fund and no other authorized participant is able to step forward to create or redeem, shares may trade at a discount to NAV and possibly face trading halts and/or delisting.

Active Trading Risk – Active trading could increase the Fund’s transaction costs and may increase your tax liability as compared to a fund with less active trading policies. These effects may adversely affect Fund performance.

Securities Lending Risk – The Fund may engage in securities lending. Securities lending involves the risk that the Fund may lose money because the borrower of the loaned securities fails to return the securities in a timely manner or at all. The Fund could also lose money in the event of a decline in the value of the collateral provided for loaned securities or a decline in the value of any investments made with cash collateral. These events could also trigger adverse tax consequences for the Fund.

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The Fund is subject to certain other risks. For more information regarding risks and investments, please see “Additional Information Regarding Investment Strategies and Risks” in the Fund’s statutory prospectus.

PAST PERFORMANCE. Because the Fund has not yet commenced operations, no performance history has been provided. Performance information will be available at hartfordfunds.com. Keep in mind that past performance does not indicate future results.

MANAGEMENT. The Fund’s investment manager is Hartford Funds Management Company, LLC. The Fund’s sub-adviser is Wellington Management.

PURCHASE AND SALE OF FUND SHARES. The Fund is an exchange-traded fund (“ETF”). Individual Fund shares may only be purchased and sold on a national securities exchange through a broker-dealer and may not be purchased or redeemed directly with the Fund. The price of Fund shares is based on market price, and because ETF shares trade at market prices rather than at NAV, shares may trade at a price greater than NAV (a premium) or less than NAV (a discount). The Fund will only issue or redeem shares at NAV that have been aggregated into blocks of 50,000 shares or multiples thereof  (“Creation Units”) to authorized participants (“Authorized Participants”) who have entered into participation agreements with the Fund’s distributor, ALPS Distributors, Inc. (the “Distributor”). The Fund will issue or redeem Creation Units in return for a basket of securities and/or cash that the Fund specifies each business day.

TAX INFORMATION. The Fund’s distributions are generally taxable, and may be taxed as ordinary income or capital gains, unless you are investing through a tax-deferred arrangement, such as a 401(k) plan or an individual retirement account. Such tax-deferred arrangements may be taxed later upon withdrawal of monies from those arrangements.

PAYMENTS TO BROKER-DEALERS AND OTHER FINANCIAL INTERMEDIARIES. If you purchase shares of the Fund through a broker-dealer or other financial intermediary (such as a bank or financial advisor), the Fund’s related companies may pay the intermediary for services and/or data related to the sale of Fund shares. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your financial advisor to recommend the Fund over another investment. Ask your financial advisor or visit your financial intermediary’s website for more information.

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8February 19, 2020 SUM-CBETF_02192020