Simplify Opportunistic Income ETF

CRDT

a series of Simplify Exchange Traded Funds

SUMMARY PROSPECTUS

November 1, 2026

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 and statement of additional information dated November 1, 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 OPPORTUNISTIC INCOME ETF

Investment Objective: The Simplify Opportunistic Income ETF (the “Fund” or “CRDT”) 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 on the purchase and sale of Fund shares, which are not reflected in the tables and examples below.

Example: This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds.

The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based upon 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 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 108% of the average value of its portfolio.

Principal Investment Strategies:

The Fund is an actively managed exchange-traded fund (“ETF”) that seeks to achieve its investment objective by investing primarily in income producing securities. The Fund’s Sub-Adviser is responsible for fixed income security selection and the Adviser is responsible for the Fund’s derivatives strategy and trade execution.

Under normal circumstances, the Fund invests primarily in income producing securities, including U.S. and foreign investment grade and high yield (“junk”) corporate bonds and preferred stock, bonds issued by the U.S. Treasury, and bank loans. The Fund’s Sub-Adviser selects the fixed income securities based on fundamental, bottom-up research. The Sub-Adviser may sell an investment if the issuer’s credit quality or other fundamental characteristic declines, if the investment does not perform as expected, or to adjust the asset allocation or when it believes a different investment presents a more attractive risk return opportunity.

The Sub-Adviser targets fixed income securities with different maturities, durations, and quality requirements. Duration is a measure of price sensitivity of a debt security or a portfolio of debt securities to relative changes in interest rates. For instance, a duration of “five years” means that a security’s or portfolio’s price would be expected to decrease by approximately 5% with a 1% increase in interest rates (assuming a parallel shift in yield curve). Maturity is the period during which its owner will receive interest payments on the investment. A bond’s quality is a reference to the grade given to a bond by a rating service that indicates its credit quality. The rating takes into consideration a bond issuer’s financial strength or its ability to pay a bond’s principal and interest in a timely fashion.

The Fund may invest up to 15% of its assets in illiquid assets such as distressed or private investments, provided that the Fund will not invest more than 10% of its assets in investments that are rated CCC or lower, or its equivalent, by Moody’s Investors Service, Inc. (“Moody’s”), Standard & Poor’s Ratings Services (“S&P”) or Fitch, Inc. (“Fitch”). The Fund invests primarily in securities issued by companies in the United States, however the Fund may also invest up to 25% of its net assets in securities issued by companies in other countries. The Fund will not invest more than 10% of its assets in securities issued by companies tied economically to emerging markets countries.

The Fund may invest in derivative instruments, such as futures contracts, swap agreements, or swaptions to hedge interest rate or default risk, or to strategically adjust portfolio-level interest rate or default exposure. The Adviser uses US Treasury futures contracts when it believes they will be a more cost effective means of hedging or adjusting interest rate risk when compared to buying or selling debt securities. The Adviser uses total return swaps to gain exposure to a debt ETF, debt index or basket of debt instruments when it is not feasible or economical to achieve such exposure directly. The Adviser uses swaptions (an option to enter into a swap) when it believes this will be a more economical means of adjusting credit or interest rate risk. The Adviser uses credit default swaps to adjust default risk based on a single security or an index of securities. The Adviser may invest in affiliated money market ETFs to manage liquidity or to pledge as collateral for derivatives.

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 more 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 obligation early, reducing the amount of interest payments).

Junk Bond Risk. Lower-quality bonds, known as “high yield” or “junk” bonds, present greater risk than bonds of higher quality, including an increased risk of default. An economic downturn or period of rising interest rates could adversely affect the market for these bonds and reduce the Fund’s ability to sell its bonds. Longer maturity and longer duration bond prices will decline more in response to rising interest rates. Such securities also may include “Rule 144A” securities, which are subject to resale restrictions. The lack of a liquid market for these bonds could decrease the Fund’s share price.

Preferred Stock Risk. The value of preferred stocks will fluctuate with changes in interest rates. Typically, a rise in interest rates causes a decline in the value of preferred stock. Preferred stocks are also subject to credit risk, which is the possibility that an issuer of preferred stock will fail to make its dividend payments. The reference common stock of a convertible preferred stock may fail to reach a price that makes the conversion feature valuable.

Convertible Bond Risk. Convertible bonds that are rated below investment grade are subject to the risks associated with high-yield investments. The reference common stock of a convertible bond may fail to reach a price that makes the conversion feature valuable. Convertible bonds are hybrid securities that have characteristics of both bonds and common stocks and are subject to risks associated with both debt securities and equity securities.

Derivatives Risk. 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 fulfil 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.

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

Counterparty Risk. Counterparty risk is the risk that a counterparty to a financial instrument held 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.

CDX Risk. A CDX is subject to the risks of the underlying credit default swap obligations, which include risks such as concentration risk and counterparty risk. Concentration risk refers to the certain large institutional buyers that may take large positions in credit default swaps. The failure of such a buyer could materially and adversely affect the credit default swap market as a whole. Counterparty risk refers to the risk that the counterparty to the swap will default on its obligation to pay.

Credit Default Swaps Risk. CDS are typically two-party financial contracts that transfer credit exposure between the two parties. Under a typical CDS, one party (the “seller”) receives pre-determined periodic payments from the other party (the “buyer”). The seller agrees to make compensating specific payments to the buyer if a negative credit event occurs, such as the bankruptcy or default by the issuer of the underlying debt instrument. The use of CDS involves investment techniques and risks different from those associated with ordinary portfolio security transactions, such as potentially heightened counterparty, concentration and exposure risks.

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.

Emerging Markets Risk. Investing in emerging markets involves not only the risks described below with respect to investing in foreign securities, but also other risks, including exposure to economic structures that are generally less diverse and mature, limited availability and reliability of information material to an investment decision, and exposure to political systems that can be expected to have less stability than those of developed countries.

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

Foreign Investment Risk. The Fund may invest in securities domiciled in countries outside the U.S. that may experience more rapid and extreme changes in value than a fund that invests exclusively in securities of U.S companies. These investments may be subject to additional risks, including political and economic risks, less government regulation and supervision of foreign stock exchanges, brokers and listed companies, civil conflicts and war, greater volatility, expropriation and nationalization risks, currency fluctuations, higher transaction costs, delayed transaction settlement, foreign ownership limits, foreign withholding taxes, difficulties in obtaining legal judgements, repatriation of capital, and less stringent investor protection, disclosure, and accounting standards than those of the U.S. market.

Foreign Currency Risk. Currency derivative trading risks include market risk, credit risk and country risk. Market risk results from adverse changes in exchange rates in the currencies the Fund is long or short. Credit risk results because a currency-trade counterparty may default. Country risk arises because a government may interfere with transactions in its currency.

Futures Risk. The Fund’s use of futures involves risks different from, or possibly greater than, the risks associated with investing directly in securities and other traditional investments. These risks include (i) leverage risk (ii) risk of mispricing or improper valuation; and (iii) the risk that changes in the value of the futures contract may not correlate perfectly with the underlying index. Investments in futures involve leverage, which means a small percentage of assets invested in futures can have a disproportionately large impact on the Fund. This risk could cause the Fund to lose more than the principal amount invested. Futures contracts may become mispriced or improperly valued when compared to the Adviser’s expectation and may not produce the desired investment results. Additionally, changes in the value of futures contracts may not track or correlate perfectly with the underlying index because of temporary, or even long-term, supply and demand imbalances and because futures do not pay dividends unlike the stocks upon which they are based.

Illiquid Securities Risk. The Fund may invest up to an aggregate amount of 15% of its net assets in illiquid investments. An illiquid investment is any investment that the Adviser and Sub-Adviser reasonably expect cannot be sold or disposed of in current market conditions in seven calendar days or less without the sale or disposition significantly changing the market value of the investment. There presently are a limited number of participants in the market for certain securities or assets that the Fund may own.

Limited History of Operation 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, climate change or climate related events, natural disasters, pandemics, epidemics, terrorism, tariffs and trade wars, international conflicts and wars, 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.

Over-the-Counter Market Risk. Securities and options traded in over-the-counter markets may trade less frequently and in limited volumes and thus exhibit more volatility and liquidity risk, and the prices 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 who may be unwilling or unable to perform its contractual obligations to the Fund.

Swap Risk. Leverage inherent in swaps will tend to magnify the Fund’s losses if the reference asset or assets declines in price. These contracts involve exposure to credit risk because contract performance depends, in part, on the financial condition of the counterparty. If the creditworthiness of the counterparty declines, the Fund may not receive payments owed under the contract, or such payments may be delayed and the value of agreements with the counterparty can be expected to decline, potentially resulting in losses to the Fund.

Swaptions Risk. A swaption is a contract that gives a counterparty the right (but not the obligation) to enter into a new swap agreement or to shorten, extend, cancel or otherwise modify an existing swap agreement, at some designated future time on specified terms. The Fund may write (sell) and purchase put and call swaptions. Depending on the terms of the particular option agreement, the Fund will generally incur a greater degree of risk when it writes a swaption than it will incur when it purchases a swaption. When the Fund purchases a swaption, it risks losing only the amount of the premium it has paid should it decide to let the option expire unexercised. However, when the Fund writes a swaption, it becomes obligated (if the option is exercised) according to the terms of the underlying agreement.

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. ETFs 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 ETFs and may be higher than other funds that invest directly in stocks and bonds. Each of the ETFs is subject to its own specific risks, but the Adviser expects the principal investments risks of such ETFs will be similar to the risks of investing in the Fund.

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. Treasuries Risk. U.S. Treasury obligations are backed by the “full faith and credit” of the U.S. government and generally have negligible credit risk. Securities issued or guaranteed by federal agencies or authorities and U.S. government-sponsored instrumentalities or enterprises may or may not be backed by the full faith and credit of the U.S. government.

U.S. Treasury Market Risk. The U.S. Treasury market can be volatile, and the value of 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.

Performance: The following performance information provides 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 total returns compare to those of a broad-based securities market index and two additional indices. The Bloomberg U.S. Universal Total Return Index represents a broader U.S. bond market including investment-grade and high-yield corporate bonds, and is included as a performance benchmark relevant to the Fund’s opportunistic fixed-income approach. The ICE BofA US High Yield Index tracks U.S. high-yield corporate bonds and is included as a performance benchmark that reflects a key sector the Fund may emphasize within its credit strategy. The Fund’s past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available at no cost by visiting www.simplify.us/etfs or by calling 1 (855) 772-8488.

During the periods shown in the bar chart above, the Fund’s highest quarterly return was 4.28% (quarter ended September 30, 2024) and the Fund’s lowest quarterly return was -4.94% (quarter ended June 30, 2025). The calendar year-to-date total return of the Fund as of September 30, 2026 was -7.11%.

Average Annual Total Returns for the Periods Ended December 31, 2025

After-tax returns are calculated using the historical highest individual federal marginal income tax rates during the period covered by the table above and do not reflect the impact of state and local taxes. Actual after-tax returns depend on an investor’s tax situation and may differ from those shown. After-tax returns shown are not relevant to investors who hold shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts.

Investment Adviser: Simplify Asset Management Inc. (the “Adviser”).

Investment Sub-Adviser: Asterozoa Management, LLC (the “Sub-Adviser”).

Portfolio Managers: David Berns, PhD, Chief Investment Officer of the Adviser; Ken Miller, Portfolio Manager of the Adviser; Chris Getter, Emerging Markets Strategist of the Adviser; and Joe Hegener, Chief Investment Officer of the Sub-Adviser serve as portfolio managers of the Fund. Dr. Berns, Mr. Miller, Mr. Hegener have each served the Fund as a portfolio manager since it commenced operations in June 2023. Mr. Getter has served the Fund as a portfolio manager since November 2024. Dr. Berns, Mr. Miller, Mr. Getter, and Mr. Hegener 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.