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, statement of additional information, reports to shareholders and other information about the Fund online at www.franklintempleton.com/prospectus. You can also get this information at no cost by calling (800) DIAL BEN/342-5236 or by sending an e-mail request to prospectus@franklintempleton.com. The Fund’s prospectus and statement of additional information, both dated August 1, 2023, as may be supplemented, are all incorporated by reference into this Summary Prospectus.

FRANKLIN U.S. LOW VOLATILITY ETF
SUMMARY PROSPECTUS

Investment Goal

Capital appreciation with an emphasis on lower volatility.

Fees and Expenses of the Fund

The following table describes the fees and expenses that you will incur if you buy, hold and sell shares of the Fund. You may also incur other fees, such as usual and customary brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and the Example that follows.

Annual Fund Operating Expenses

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

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 sell all of your shares at the end of the period. 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:

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

FRANKLIN U.S. LOW VOLATILITY ETF
SUMMARY PROSPECTUS

in a taxable account. These costs, which are not reflected in annual Fund operating expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 32.13% of the average value of its portfolio.

Principal Investment Strategies

Under normal market conditions, the Fund invests at least 80% of its net assets in U.S. investments. The Fund invests primarily in equity securities (principally common stocks) of U.S. companies, which are those that:

· are organized under the laws of, or have a principal office in, or for whose securities the principal trading market is, the U.S.; or

· derive 50% or more of their total revenue or profit from either goods or services produced, or sales made, in the U.S.; or

· have 50% or more of their assets in the U.S.

The Fund seeks capital appreciation while providing a lower level of volatility than the broader equity market as measured by the Russell 1000^® Index. “Volatility” is a statistical measurement of the frequency and level of up and down fluctuations of a fund’s returns over time. Therefore, in this context, seeking to provide a lower level of volatility than the broader equity market means that the Fund seeks returns that fluctuate less than the returns of the Russell 1000^® Index.

The investment manager seeks to accomplish its investment goal through its security selection process. The investment manager applies a fundamentally driven, “bottom-up” research process to create a starting universe of eligible securities across a large number of sectors; the starting universe is derived from the holdings of a number of actively managed Franklin Templeton equity funds. The investment manager screens that universe on a quarterly basis in order to identify those securities with the lowest realized volatility relative to their corresponding sectors, while also incorporating fundamental views of individual stocks. The Fund’s sector weightings generally are based on the current sector weightings within the Russell 1000^® Index. Individual securities in the Fund’s portfolio are generally weighted equally within each sector. The investment manager may, from time to time, make adjustments to the Fund’s portfolio as a result of corporate actions, changes to the volatility profile of the Fund’s holdings, or for risk management related purposes. The investment manager may utilize proprietary quantitative screening techniques to identify investment opportunities as part of the portfolio construction process for the Fund. Quantitative analyses rely on mathematical computations to identify investment opportunities. The investment manager may consider selling a security when it believes the security has become fully valued due to either its price appreciation or changes in the issuer’s

FRANKLIN U.S. LOW VOLATILITY ETF
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fundamentals, or when the investment manager believes another security is a more attractive investment opportunity.

The Fund may invest a portion of its assets in mid-capitalization companies. The Fund may also invest in American Depository Receipts.

Principal Risks

You could lose money by investing in the Fund. ETF shares are not deposits or obligations of, or guaranteed or endorsed by, any bank, and are not insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board, or any other agency of the U.S. government. The Fund is subject to the principal risks noted below, any of which may adversely affect the Fund’s net asset value (NAV), trading price, yield, total return and ability to meet its investment goal. Unlike many ETFs, the Fund is not an index-based ETF.

Market The market values of securities or other investments owned by the Fund will go up or down, sometimes rapidly or unpredictably. The market value of a security or other investment may be reduced by market activity or other results of supply and demand unrelated to the issuer. This is a basic risk associated with all investments. When there are more sellers than buyers, prices tend to fall. Likewise, when there are more buyers than sellers, prices tend to rise.

The global outbreak of the novel strain of coronavirus, COVID-19 and its subsequent variants, has resulted in market closures and dislocations, extreme volatility, liquidity constraints and increased trading costs. The long-term impact on economies, markets, industries and individual issuers is not known. Some sectors of the economy and individual issuers have experienced or may experience particularly large losses. Periods of extreme volatility in the financial markets; reduced liquidity of many instruments; and disruptions to supply chains, consumer demand and employee availability, may continue for some time.

Stock prices tend to go up and down more dramatically than those of debt securities. A slower-growth or recessionary economic environment could have an adverse effect on the prices of the various stocks held by the Fund.

Volatility Strategy There can be no guarantee that the Fund’s volatility strategy will be successful; moreover, achieving the Fund’s volatility strategy does not mean the Fund will achieve a positive or competitive return. Although the Fund is designed to have less volatility than the broader equity market as measured by the Russell 1000^® Index, the actual volatility that the Fund experiences could be higher than the volatility of the broader equity market and/or the Russell 1000^® Index. The volatility strategy can be expected to limit the Fund’s participation in market price appreciation when compared to similar funds that do not attempt this strategy. In cases of extreme market conditions during which there is price dislocation for

FRANKLIN U.S. LOW VOLATILITY ETF
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certain securities or in the event of systemic market dislocation, the Fund’s volatility strategy may cause the Fund to be significantly over- or under-exposed to a specific security, which may cause the Fund to lose significantly more than it would have lost had the volatility strategy not been used.

Mid Capitalization Companies Securities issued by mid capitalization companies may be more volatile in price than those of larger companies, involve substantial risks and should be considered speculative. Such risks may include greater sensitivity to economic conditions, less certain growth prospects, lack of depth of management and funds for growth and development, and limited or less developed product lines and markets. In addition, mid capitalization 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 any loans.

Focus To the extent that the Fund focuses on particular countries, regions, industries, sectors or types of investment from time to time, the Fund may be subject to greater risks of adverse developments in such areas of focus than a fund that invests in a wider variety of countries, regions, industries, sectors or investments.

Technology companies Companies in the technology sector have historically been volatile due to the rapid pace of product change and development within the sector. For example, their products and services may not prove commercially successful or may become obsolete quickly. In addition, delays in or cancellation of the release of anticipated products or services may also affect the price of a technology company’s stock. Technology companies are subject to significant competitive pressures, such as new market entrants, aggressive pricing and tight profit margins. The activities of these companies may also be adversely affected by changes in government regulations, worldwide technological developments or investor perception of a company and/or its products or services. The stock prices of companies operating within this sector may be subject to abrupt or erratic movements.

Management The Fund is subject to management risk because it is an actively managed ETF. The Fund's investment manager applies investment techniques and risk analyses in making investment decisions for the Fund, but there can be no guarantee that these decisions will produce the desired results.

Cybersecurity Cybersecurity incidents, both intentional and unintentional, may allow an unauthorized party to gain access to fund assets, fund or customer data (including private shareholder information), or proprietary information, cause the fund, the investment manager, authorized participants, or index providers (as applicable) and listing exchanges, and/or their service providers (including, but not

FRANKLIN U.S. LOW VOLATILITY ETF
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limited to, fund accountants, custodians, sub-custodians, transfer agents and financial intermediaries) to suffer data breaches, data corruption or loss of operational functionality or prevent fund investors from purchasing, redeeming shares or receiving distributions. The investment manager has limited ability to prevent or mitigate cybersecurity incidents affecting third party service providers, and such third party service providers may have limited indemnification obligations to the fund or the investment manager. Cybersecurity incidents may result in financial losses to the fund and its shareholders, and substantial costs may be incurred in an effort to prevent or mitigate future cybersecurity incidents. Issuers of securities in which the fund invests are also subject to cybersecurity risks, and the value of these securities could decline if the issuers experience cybersecurity incidents.

Because technology is frequently changing, new ways to carry out cyber attacks are always developing. Therefore, there is a chance that some risks have not been identified or prepared for, or that an attack may not be detected, which puts limitations on the Fund's ability to plan for or respond to a cyber attack. Like other funds and business enterprises, the Fund, the investment manager, and their service providers are subject to the risk of cyber incidents occurring from time to time.

Quantitative Screening Techniques The quantitative screening techniques used by the investment manager as part of the Fund's portfolio construction process to identify investment opportunities may not operate as desired or produce the intended results. Quantitative analyses rely on mathematical computations which may be derived from inputs that are incomplete or inaccurate, including with respect to internal or third-party data. Accordingly, the effectiveness of quantitative screens or investment parameters may be limited due to technical issues in the design, development, implementation, or maintenance of the underlying models, programming or coding errors, and technology failures, which could adversely affect the Fund's ability to achieve its investment goal. Successful operation of quantitative models and other investment tools is also reliant upon the information technology systems of the investment manager and its ability to ensure those systems remain operational and that appropriate disaster recovery procedures are in place. There can be no assurance that the investment manager will be successful in maintaining effective and operational technology systems, including related hardware and software systems.

Depositary Receipts Depositary receipts are subject to many of the risks of the underlying securities. For some depositary receipts, the custodian or similar financial institution that holds the issuer's shares in a trust account is located in the issuer's home country. In these cases if the issuer’s home country does not have developed financial markets, the Fund could be exposed to the credit risk of the

FRANKLIN U.S. LOW VOLATILITY ETF
SUMMARY PROSPECTUS

custodian or financial institution and greater market risk. In addition, the depository institution may not have physical custody of the underlying securities at all times and may charge fees for various services. The Fund may experience delays in receiving its dividend and interest payments or exercising rights as a shareholder. There may be an increased possibility of untimely responses to certain corporate actions of the issuer in an unsponsored depositary receipt program. Accordingly, there may be less information available regarding issuers of securities underlying unsponsored programs and there may not be a correlation between this information and the market value of the depositary receipts.

Market Trading The Fund faces numerous market trading risks, including the potential lack of an active market for Fund shares, losses from trading in secondary markets, periods of high volatility and disruption in the creation/redemption process of the Fund. Any of these factors, among others, may lead to the Fund’s shares trading at a premium or discount to NAV. Thus, you may pay more (or less) than NAV when you buy shares of the Fund in the secondary market, and you may receive less (or more) than NAV when you sell those shares in the secondary market. The investment manager cannot predict whether shares will trade above (premium), below (discount) or at NAV.

Authorized Participant Concentration Only an authorized participant (Authorized Participant) may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that act as Authorized Participants. To the extent that these institutions exit the business or are unable 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 Creation Units (as defined below), Fund shares may trade at a discount to NAV and possibly face trading halts and/or delisting. This risk may be more pronounced in volatile markets, potentially where there are significant redemptions in ETFs generally.

Large Shareholder Certain shareholders, including other funds or accounts advised by the investment manager or an affiliate of the investment manager, may from time to time own a substantial amount of the Fund’s shares. In addition, a third-party investor, the investment manager or an affiliate of the investment manager, an authorized participant, a lead market maker, or another entity may invest in the Fund and hold its investment for a limited period of time solely to facilitate commencement of the Fund or to facilitate the Fund’s achieving a specified size or scale. There can be no assurance that any large shareholder would not redeem its investment, that the size of the Fund would be maintained at such levels or that the Fund would continue to meet applicable listing requirements. Redemptions by large shareholders could have a significant negative impact on the Fund. In addition, transactions by large shareholders may account for a large

FRANKLIN U.S. LOW VOLATILITY ETF
SUMMARY PROSPECTUS

percentage of the trading volume on the listing exchange and may, therefore, have a material upward or downward effect on the market price of the shares.

Performance

The following bar chart and table provide some indication of the risks of investing in the Fund. The bar chart shows changes in the Fund's performance from year to year. The table shows how the Fund's average annual returns for 1 year, 5 years, 10 years or since inception, as applicable, compared with those of a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. You can obtain updated performance information at franklintempleton.com or by calling (800) DIAL BEN/342-5236.

Annual Total Returns

FRANKLIN U.S. LOW VOLATILITY ETF
SUMMARY PROSPECTUS

Average Annual Total Returns

For periods ended December 31, 2022

The after-tax returns are calculated using the historical highest individual federal marginal income tax rates 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 are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Investment Manager

Franklin Advisers, Inc. (Advisers or investment manager)

Portfolio Manager

Todd Brighton, CFA
Senior Vice President of Advisers and portfolio manager of the Fund since inception (2016).

Purchase and Sale of Fund Shares

The Fund is an ETF. Fund shares may only be purchased and sold on a national securities exchange through a broker-dealer. The price of Fund shares is based on market price, and because ETF shares trade at market prices rather than NAV, shares may trade at a price greater than NAV (a premium) or less than NAV (a discount). The Fund issues or redeems shares that have been aggregated into blocks of 50,000 shares or multiples thereof (Creation Units) to Authorized Participants who have entered into agreements with the Fund’s distributor, Franklin Distributors, LLC. The Fund will generally issue or redeem Creation Units in exchange for a basket of securities (and an amount of cash) that the Fund specifies each day.

An investor may incur costs attributable to the difference between the highest price a buyer is willing to pay to purchase shares of the Fund (bid) and the lowest price a seller is willing to accept for shares of the Fund (ask) when buying or selling shares

FRANKLIN U.S. LOW VOLATILITY ETF
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in the secondary market (the “bid-ask spread”). Recent information, including information on the Fund’s NAV, market price, premiums and discounts, and bid-ask spreads is available on the Fund’s website at https://www.franklintempleton.com/investor/investments-and-solutions/investment-options/etfs/.

Taxes

The Fund’s distributions are generally taxable to you as ordinary income, capital gains, or some combination of both, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or an individual retirement account, in which case your distributions would generally be taxed when withdrawn from the tax-advantaged account.

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), the investment manager or other related companies may pay the intermediary for certain Fund-related activities, including those that are designed to make the intermediary more knowledgeable about exchange traded products, such as the Fund, as well as for marketing, education or other initiatives related to the sale or promotion of Fund shares. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary’s website for more information.