Summary Prospectus by Investment Company (Form 497K)

Simplify National Muni Bond ETF

NMB

a series of Simplify Exchange Traded Funds

SUMMARY PROSPECTUS

November 1, 2025

as supplemented May 18, 2026

	Advised by:
	Simplify Asset Management Inc.
	10845 Griffith Peak Drive, 2/F
	Las Vegas, NV 89135
www.simplify.us/etfs	phone: 1 (855) 772-8488

Before you invest, you may want to review the Fund's prospectus, which contains more information about the Fund and its risks. The Fund's prospectus, dated November 1, 2025, as supplemented May 18, 2026; and statement of additional information dated November 1, 2025, as supplemented January 6, 2026, and February 2, 2026, are incorporated by reference into this summary prospectus. You can obtain these documents and other information about the Fund online at www.simplify.us/etfs or by calling 1-855-772-8488.

These securities have not been approved or disapproved by the Securities and Exchange Commission nor has the Securities and Exchange Commission passed upon the accuracy or adequacy of this Prospectus. Any representation to the contrary is a criminal offense.

Shares of the Fund are listed and traded on the NYSE Arca, Inc.

FUND SUMMARY - SIMPLIFY NATIONAL MUNI BOND ETF

Investment Objective: The Simplify National Muni Bond ETF's (the "Fund" or "NMB") seeks to maximize total return.

Fees and Expenses of the Fund: This table describes the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table or example below.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Management Fees	0.50%
Distribution and Service (12b-1) Fees	0.00%
Acquired Fund Fees and Expenses(1)	0.02%
Other Expenses	0.00%
Total Annual Fund Operating Expenses	0.52%

(1)

Acquired Fund Fees and Expenses are the indirect costs of investing in other investment companies. The operating expenses in this fee table do not correlate to the expense ratio in the Fund's financial highlights because the financial statements include only the direct operating expenses incurred by the Fund.

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 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 upon these assumptions your costs would be:

1 Year	3 Years	5 Years	10 Years
$53	$167	$291	$653

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 Example, affect the Fund's performance. During the period September 9, 2024 (commencement of operations) through June 30, 2025, the Fund's portfolio rate was 678% of the average value of its portfolio.

Principal Investment Strategies:

The Fund is an actively managed exchange-traded fund that seeks to achieve its investment objectives by investing primarily in investment grade U.S. municipal bonds.

Municipal Bond Strategy

The Fund has adopted a non-fundamental investment policy that, under normal circumstances, the Fund will invest at least 80% of its net assets (plus any borrowings for investment purposes) in U.S. municipal bonds. Municipal bonds are debt securities issued by states, counties, municipalities, authorities, agencies, or other subdivisions, as well as the District of Columbia and U.S. territories such as Puerto Rico, Guam and the Mariana Islands or U.S. Virgin Islands. Municipal securities are issued to raise money for a variety of public or private purposes, including financing state or local governments specific projects or public facilities, housing projects, industrial projects, hospitals, schools, mass transportation, stadiums, waterworks and sewer systems and highways. Although the sub-adviser will target investments across municipal securities that finance a variety of projects, from time to time, the Fund may have significant positions in municipal securities that finance projects that are similar in type, scope, or geographic area.

Municipal securities typically are classified as general or revenue obligations.

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General Obligation Bonds. Issuers of general obligation bonds include states, counties, cities, towns and regional districts. The proceeds of these obligations are used to fund a wide range of public projects, including construction or improvement of schools, highways and roads. The basic security behind general obligation bonds is the issuer's pledge of its full faith, credit and taxing power for the payment of principal and interest. The taxes that can be levied for the payment of debt service may be limited or unlimited as to the rate or amount of special assessments.

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Revenue Bonds. The full faith, credit and taxing power of the issuer do not secure revenue bonds. Instead, the principal security for a revenue bond generally is the net revenue derived from a particular facility, group of facilities, or, in some cases, the proceeds of a special excise tax or other specific revenue source.

The Fund will invest in municipal securities that the sub-adviser believes will provide the best balance between, on the one hand, the potential for income, and on the other hand, risk profile, within the Fund's range of allowable investments at any given time. In selecting municipal securities for the Fund's portfolio, the sub-adviser may acquire securities that pay fixed, floating or variable rates of interest. The sub-adviser may also sell securities on an opportunistic basis for capital appreciation or because of a decline in credit quality, change in tax characterization, or availability of securities that the sub-adviser believes offer better investment opportunities.

In selecting municipal securities for the Fund's portfolio, the sub-adviser will consider one or more of the following factors, including, without limitation, credit and risk profile, structure, pricing, portfolio impact, duration, restructuring, and tax impact. The municipal bonds acquired for the Fund will generally be tax-exempt, although the Fund may also invest in taxable bonds. While the Fund may invest in municipal securities rated in any category by a nationally recognized rating service (or unrated securities of comparable quality), the Fund focuses on investment grade securities. Investment-grade securities are securities that receive investment-grade ratings (i.e., generally ratings in the first, second, third or fourth highest rating category) by a nationally recognized statistical rating organization or unrated securities of comparable quality. For example, securities rated AAA, AA, A or BBB (including modifiers, sub-categories or gradations) by Standard & Poor's, would be rated in the first, second, third or fourth ratings category, respectively. Although the investments in the Fund's municipal bond strategy portfolio are not limited to securities of a particular maturity range, and the Fund otherwise has no set duration parameters, the sub-adviser anticipates targeting a municipal bond portfolio with an average duration of ten or more years.

Additional Municipal Bond Strategy Techniques.

The Fund may also seek to increase or hedge exposure to the municipal securities markets by investing in long or short positions in municipal securities, U.S. government securities, securities of other investment companies (e.g., mutual funds, exchange-traded funds and closed-end funds), or in securities that provide related exposure, including derivative instruments such as puts, options, swaps, and repurchase agreements. The Fund may also leverage investments by using interest rate hedges or generally using different margin arrangements.

The Fund's 80% policy may be changed by the Board of Trustees upon 60 days' written notice to shareholders.

If the Fund writes options or enters into swaps, the Fund is required to post collateral to assure its performance. The Fund will hold cash and cash-like instruments or high-quality short term fixed income securities (collectively, "Collateral"). The Collateral may consist of (1) U.S. Government securities, such as bills, notes and bonds issued by the U.S. Treasury; (2) money market funds (including affiliated money market ETFs); (3) fixed income ETFs; and/or (4) corporate debt securities, such as commercial paper and other short-term unsecured promissory notes issued by companies that are rated investment grade or of comparable quality. The adviser considers an unrated security to be of comparable quality to a security rated investment grade if it believes it has a similar low risk of default.

Principal Investment Risks: As with all funds, there is the risk that you could lose money through your investment in the Fund. Many factors affect the Fund's net asset value and price of shares and performance.

The following describes the principal risks the Fund bears with respect to its investments. As with any fund, there is no guarantee that the Fund will achieve its goal.

Fixed Income Securities Risk. When the Fund invests in fixed income securities, the value of your investment in the Fund will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of fixed income securities owned by the Fund. In general, the market price of fixed income securities with longer maturities will increase or decrease in response to changes in interest rates than shorter-term securities. Other risk factors include credit risk (the debtor may default), extension risk (an issuer may exercise its right to repay principal on a fixed rate obligation held by the Fund later than expected), and prepayment risk (the debtor may pay its obligations early, reducing the amount of interest payments). These risks could affect the value of a particular investment by the Fund, possibly causing the Fund's share price and total return to be reduced and fluctuate more than other types of investments.

Active Management Risk. The Fund is subject to the risk that the investment management strategy may not produce the intended results and may negatively impact Fund performance.

Derivatives Risk. Options and swaps are derivative instruments. The use of derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include (i) the risk that the counterparty to a derivative transaction may not fulfill its contractual obligations; (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index. Derivative prices are highly volatile and may fluctuate substantially during a short period of time. Such prices are influenced by numerous factors that affect the markets, including, but not limited to: changing supply and demand relationships; government programs and policies; national and international political and economic events, changes in interest rates, inflation and deflation and changes in supply and demand relationships. Trading derivative instruments involves risks different from, or possibly greater than, the risks associated with investing directly in securities.

Option Risk. As the buyer of a put or call option, the Fund risks losing the entire premium invested in the option if the Fund does not exercise the option.

Swap Risk. Swaps are subject to tracking risk because they may not be perfect substitutes for the instruments they are intended to hedge or replace. Over the counter swaps are subject to counterparty default. Leverage inherent in derivatives will tend to magnify the Fund's losses.

Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held by the Fund or by a special purpose or structured vehicle invested in by the Fund may become insolvent or otherwise fail to perform its obligations, and the Fund may obtain no or limited recovery of its investment, and any recovery may be significantly delayed.

Early Close/Trading Halt Risk. An exchange or market may close or issue trading halts on specific securities, or the ability to buy or sell certain securities or financial instruments may be restricted, which may prevent the Fund from buying or selling certain securities or financial instruments. In these circumstances, the Fund may be unable to rebalance its portfolio, may be unable to accurately price its investments and may incur substantial trading losses.

ETF Structure Risk. The Fund is structured as an ETF and will invest in underlying ETFs. As a result, the Fund is subject to special risks, including:

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Not Individually Redeemable. The Fund's shares ("Shares") are not redeemable by retail investors and may be redeemed only by Authorized Participants at net asset value ("NAV") and only in Creation Units. A retail investor generally incurs brokerage costs when selling shares.

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Trading Issues. Trading in Shares on NYSE Arca, Inc. (the "Exchange") may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in Shares inadvisable, such as extraordinary market volatility. There can be no assurance that Shares will continue to meet the listing requirements of the Exchange which may result in the Shares being delisted. An active trading market for the Shares may not be developed or maintained. If the Shares are traded outside a collateralized settlement system, the number of financial institutions that can act as Authorized Participants that can post collateral on an agency basis is limited, which may limit the market for the Shares.

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Market Price Variance Risk. The market prices of Shares will fluctuate in response to changes in NAV and supply and demand for Shares and will include a "bid-ask spread" charged by the exchange specialists, market makers or other participants that trade the Shares. There may be times when the market price and the NAV vary significantly. This means that Shares may trade at a discount to NAV.

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In times of market stress, market makers may step away from their role market making in the Shares and in executing trades, which can lead to differences between the market value of the Shares and the Fund's NAV.

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The market price of the Shares may deviate from the Fund's NAV, particularly during times of market stress, with the result that investors may pay significantly more or significantly less the Shares than the Fund's NAV, which is reflected in the bid and ask price for the Shares or in the closing price.

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In stressed market conditions, the market for the Shares may become less liquid in response to the deteriorating liquidity of the Fund's portfolio. This adverse effect on the liquidity of the Shares may, in turn, lead to differences between the market value of the hares and the Fund's NAV.

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Closure of Underlying Securities Market. To the extent that all or a portion of the Fund's underlying securities trade in a market that is closed when the market in which the Fund's shares are listed and trading in that market is open, there may be changes between the last quote from the closed foreign market and the value of such security during the Fund's domestic trading day. In turn, this could lead to differences between the market price of the Fund's shares and the underlying value of its shares.

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Authorized Participant Risk. Only an Authorized Participant may engage in creation or redemption transactions directly with the Fund. The Fund has a limited number of institutions that may act as an Authorized Participant on an agency basis (i.e., on behalf of other market participants). To the extent that Authorized Participants exit the business or are unable to proceed with creation or redemption orders with respect to the Fund and no other Authorized Participant is able to step forward to create or redeem Creation Units, Fund shares may be more likely to trade at a premium or discount to net asset value and possibly face trading halts or delisting. Authorized Participant concentration risk may be heightened for securities or instruments that have lower trading volumes.

Leverage Risk. The use of leverage by the Fund, such as through the use of options, will cause the Fund to incur additional expenses and magnify the Fund's gains or losses.

Limited History Risk. The Fund is relatively new and has a limited history of operations for investors to evaluate.

Market and Geopolitical Risk. The increasing interconnectivity between global economies and financial markets increases the likelihood that events or conditions in one region or financial market may adversely impact issuers in a different country, region or financial market. Securities in the Fund's portfolio may underperform due to inflation (or expectations for inflation), interest rates, global demand for particular products or resources, natural disasters, climate change and climate-related events, pandemics, epidemics, terrorism, tariffs and trade wars, international conflicts, regulatory events and governmental or quasi-governmental actions. The occurrence of global events similar to those in recent years may result in market volatility and may have long term effects on both the U.S. and global financial markets. It is not known how long such impacts, or any future impacts of other significant events described above, will or would last, but there could be a prolonged period of global economic slowdown, which may impact your Fund investment.

Municipal Securities Risk. Each type of municipal obligation may be more or less susceptible to downgrades or defaults during recessions or similar periods of economic stress. As such, the value of the Fund's investments in municipal credit risk instruments will be affected by local, state, regional and national factors. In addition to being downgraded, an insolvent municipality may file for bankruptcy. There also is political risk that state legislatures or municipal authorities will seek to interfere with or rescind the revenue streams required for the issuer to satisfy its obligations, leaving the creditor with no recourse.

Over-the-Counter Market Risk: Securities and derivatives traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the process paid by the Fund in over-the-counter transactions may include an undisclosed dealer markup. The Fund is also exposed to default by the over-the-counter option writer or swap counterparty who may be unwilling or unable to perform its contractual obligations to the Fund.

Tax-Exempt Municipal Bond Risk. The interest from such bonds is generally exempt from U.S. federal income tax. The United States Internal Revenue Code of 1986, as amended (the "Code") imposes certain continuing requirements on issuers of tax-exempt bonds regarding the use, expenditure and investment of bond proceeds, the payment of rebates to the United States and the registration of certain bonds. Failure by the issuer to comply, subsequent to the issuance of tax-exempt bonds, with certain of these requirements could cause interest on the bonds to become includable in gross income retroactive to the date of issuance, which may reduce the value of the bonds.

Turnover Rate Risk. The Fund may have portfolio turnover rates significantly in excess of 100%. Increased Portfolio Turnover causes the Fund to incur higher brokerage costs, which may adversely affect the Fund's performance and may produce increased taxable distributions.

Underlying Fund Risk. Other investment companies, i.e. ETFs and money market funds ("Underlying Funds") in which the Fund invests are subject to investment advisory and other expenses, which will be indirectly paid by the Fund. As a result, the cost of investing in the Fund will be higher than the cost of investing directly in the Underlying Funds and may be higher than other mutual funds that invest directly.

Affiliated Money Market ETF Conflict of Interest Risk. Because the Fund may invest in an affiliated ETF, the adviser is subject to conflicts of interest in allocating the Fund's assets to the affiliated ETF. The adviser will receive more revenue to the extent it selects an affiliated ETF rather than an unaffiliated ETF for inclusion in the Fund's portfolio.

U.S. Treasury Market Risk. The U.S. Treasury market can be volatile, and the value of the instruments correlated with these markets may fluctuate dramatically from day to day. U.S. Treasury obligations may provide relatively lower returns than those of other securities. Similar to other debt instruments, U.S. Treasury obligations are subject to debt instrument risk and interest rate risk. In addition, changes to the financial condition or credit rating of the U.S. Government may cause the value of U.S. Treasury obligations to decline.

Volatility Risk. Significant short-term price movements could adversely impact the performance of the Fund. The Fund's performance may be volatile, which means that the Fund's performance may be subject to substantial short-term changes up or down.

Performance: Performance information will be available in the prospectus after the Fund has been in operation for one full calendar year. Past performance is not necessarily an indication of how the Fund will perform in the future. Updated performance information will be available at no cost by visiting www.simplify.us or by calling 1 (855) 772-8488.

Investment Adviser: Simplify Asset Management Inc. (the "Adviser").

Sub-Adviser: FCO Advisors LP, located at 745 Fifth Avenue, 14^th Floor, New York, NY, (the "Sub-Adviser").

Portfolio Managers: David Berns, Chief Investment Officer and Jeff Uenishi, Senior Vice President, of the Adviser; and Hector Negroni, Chief Executive Officer and Sudar Purushothaman, Partner of the Sub-Adviser serve as portfolio managers of the Fund. Dr. Berns, and Messrs. Uenishi, Negroni and Purushothaman have each served the Fund as a portfolio manager since it commenced operations and are jointly and primarily responsible for the management of the Fund.

Purchase and Sale of Fund Shares: The Fund will issue and redeem Shares at NAV only in large blocks of 25,000 Shares (each block of Shares is called a "Creation Unit"). Creation Units are issued and redeemed primarily in-kind for securities but may include cash. Individual Shares may only be purchased and sold in secondary market transactions through brokers. Except when aggregated in Creation Units in transactions with Authorized Participants, the Shares are not redeemable securities of the Fund.

Shares of the Fund are listed for trading on the Exchange and trade at market prices rather than NAV. Shares of the Fund may trade at a price that is greater than, at, or less than NAV. 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 in the secondary market. Recent information on the Fund's NAV, market price, premiums and discounts, and bid-ask spreads is available at www.simplify.us/etfs.

Tax Information: The Fund's distributions generally will be taxable as ordinary income or long-term capital gains. A sale of Shares may result in capital gain or loss.

Payments to Broker-Dealers and Other Financial Intermediaries: If you purchase the Fund through a broker-dealer or other financial intermediary (such as a bank), the Fund and its related companies may pay the intermediary for the sale of Fund 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 the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.