The Advisors’ Inner Circle Fund II

Summary Prospectus
December 18, 2024

Frontier Asset Core Bond ETF

Ticker Symbol: FCBD

INVESTMENT ADVISER:
FRONTIER ASSET MANAGEMENT, LLC

SUB-ADVISER:
EXCHANGE TRADED CONCEPTS, LLC

Before you invest, you may want to review the Fund’s complete prospectus, which contains more information about the Fund and its risks. You can find the Fund’s prospectus and other information about the Fund online at https://funds.frontierasset.com/core-bond-etf. You can also get this information at no cost by calling 1-866-326-3837, by sending an e-mail request to FrontierETFs@seic.com, or by asking any financial intermediary that offers shares of the Fund. The Fund’s prospectus and statement of additional information, both dated December 18, 2024, as they may be amended from time to time, are incorporated by reference into this summary prospectus and may be obtained, free of charge, at the website, phone number or e-mail address noted above.

Frontier Asset Core Bond ETF

Investment Objective

The Frontier Asset Core Bond ETF (the “Fund”) seeks to provide high income consistent with the preservation of capital.

Fees and Expenses

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, including to financial intermediaries, which are not reflected in the table and Example below.

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)¹

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 at current levels. This example does not include the brokerage commissions that investors may pay to buy and sell shares. Although

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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 brokerage 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 total annual Fund operating expenses or in the Example, affect the Fund’s performance. Because the Fund has not commenced investment operations as of the date of this prospectus, it does not have portfolio turnover information to report.

Principal Investment Strategies

The Fund is an actively managed exchange-traded Fund (“ETF”). Under normal circumstances, the Fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in investment-grade fixed income securities. This investment policy may be changed by the Fund upon 60 days’ prior written notice to shareholders. The Fund operates in a manner that is commonly referred to as a “fund of funds” and obtains investment exposure to the asset classes described below primarily by investing in other ETFs. The Fund generally expects to hold approximately six to twelve underlying ETFs.

For purposes of the Fund’s 80% investment policy, fixed income securities include securities issued or guaranteed by the U.S. Government, corporate debt securities, commercial paper, residential and commercial mortgage-backed securities, asset-backed securities, and inflation-linked securities (e.g., Treasury inflation-protected securities (“TIPS”)). The Adviser considers fixed income securities to be investment grade if they are rated in one of the four highest rating categories by a nationally recognized statistical ratings organization (“NRSRO”), such as S&P Global Ratings (“S&P”) or Moody’s Investor Services, Inc. (“Moody’s”), or determined by the Adviser to be of comparable quality at the time of purchase.

The Fund is managed to achieve broad exposure to the U.S. investment-grade fixed income securities market. The Fund does not target a specific weighted average maturity for its investments, either individually or in

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the aggregate. As a result, the Fund’s interest rate sensitivity may vary significantly over time.

The Adviser makes investment decisions by seeking to identity and assemble a portfolio of ETFs that will achieve its desired asset allocation mix while also optimizing for positive risk-adjusted returns (i.e., alpha) relative to the general investment-grade fixed income market. To accomplish this, the Adviser’s investment team determines the Fund’s asset allocation mix and conducts ongoing research into the ever-growing universe of ETFs and their investment managers, populating a list of ETFs from which the Fund’s portfolio is constructed. The asset allocation mix for the Fund is determined through the use of a mean variance optimization process, which seeks to identify a combination of asset classes that is expected to maximize return for a given level of risk, by focusing primarily on expected returns, standard deviations (i.e., volatility as a measure of risk) and correlations of the different asset classes.

The Adviser’s analysis and due diligence process for selecting prospective ETFs includes the following:

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and whether the manager has a reasonable edge in exploiting them. Examples of market inefficiencies may include behavioral biases such as anchoring bias (relying too heavily on an initial piece of information when making decisions), confirmation bias (seeking out or giving more weight to information that supports original estimates) and overconfidence (displaying a hesitance to acknowledge potential errors in an initial analysis). In practice, these biases can lead to delayed or gradual revisions of earnings forecasts, even when significant changes in a company’s fundamentals or external environment may warrant more immediate adjustments. The Adviser believes that a manager who understands these dynamics and puts in place processes to combat these biases may be in a better position to adjust their portfolio to incorporate new information, compared to managers who under-react to new information due to these biases.

In conducting the qualitative and manager edge analysis described above, the Adviser relies on, among other publicly available sources of information, due diligence materials provided by managers as well as interviews conducted with such managers to discuss investment philosophy, processes, personnel and performance.

Following this process, the Adviser will select ETFs on the basis of their ability to provide low-cost asset class exposure, as compared to other actively managed ETFs, and/or the ability to add value on either an absolute or risk-adjusted basis, while also taking into account the following factors to form its views on which ETFs to select for the Fund’s portfolio: market conditions, valuation metrics, risk profiles, and expected growth potential. The Adviser will sell ETFs for a variety of reasons, including the need to alter asset allocation exposures, to add ETFs that the Adviser believes are better positioned to add value as compared to existing holdings, and to remove ETFs that no longer meet the investment criteria for the Fund.

The Adviser has engaged Exchange Traded Concepts, LLC to serve as trading sub-adviser (“Sub-Adviser”) for the Fund. The Sub-Adviser is responsible for trading portfolio securities for the Fund, including selecting broker-dealers to execute purchase and sale transactions or in connection with any rebalancing or reconstitution of the portfolio, pre- and post-trade compliance, and monitoring of Fund trading activity, subject to the oversight of the Adviser and the Board of Trustees.

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Principal Risks

As with all funds, a shareholder is subject to the risk that his or her investment could lose money. A Fund share is not a bank deposit and is not insured or guaranteed by the FDIC or any other government agency. You should consider your investment goals, time horizon, and risk tolerance before investing in the Fund. The principal risk factors affecting shareholders’ investments in the Fund, either directly or indirectly through investments in underlying ETFs, are set forth below.

ETF Risks - The Fund is an ETF and, as a result of this structure, it is exposed to the following risks:

Trading Risk - Shares of the Fund may trade on the Exchange above or below their NAV. The NAV of shares of the Fund will fluctuate with changes in the market value of the Fund’s holdings. In addition, although the Fund’s shares are currently listed on the Exchange, there can be no assurance that an active trading market for shares will develop or be maintained. Trading in Fund shares may be halted due to market conditions or for reasons that, in the view of the Exchange, make trading in shares of the Fund inadvisable.

Cash Transactions Risk - Like other ETFs, the Fund sells and redeems its shares only in large blocks called Creation Units and only to “Authorized Participants.” Unlike many other ETFs, however, the Fund expects to effect its creations and redemptions at least partially for cash, rather than in-kind securities. Thus, an investment in the Fund may be less tax-efficient than an investment in other ETFs as the Fund may recognize a capital gain that it could have avoided by making redemptions in-kind. As a result, the Fund may pay out higher capital gains distributions than ETFs that redeem in-kind. Further, paying redemption proceeds at least partially in cash rather than through in-kind delivery of portfolio securities may require the Fund to dispose of or sell portfolio investments to obtain the cash needed to distribute redemption proceeds at an inopportune time.

Limited Authorized Participants, Market Makers and Liquidity Providers Risk - Because the Fund is an ETF, only a limited number of institutional investors (known as “Authorized Participants”) are authorized to purchase and redeem shares directly from the Fund. In addition, there may be a limited number of market makers and/or liquidity providers in the marketplace. To the extent either of the following events occur, Fund shares may trade at a material discount to net asset value (“NAV”) and possibly face delisting: (i) Authorized Participants exit the business or otherwise become unable to

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process creation and/or redemption orders and no other Authorized Participants step forward to perform these services, or (ii) market makers and/or liquidity providers exit the business or significantly reduce their business activities and no other entities step forward to perform their functions.

Fixed-Income Securities Risk - The prices of the Fund’s fixed-income securities respond to economic developments, particularly interest rate changes, as well as to perceptions about the creditworthiness of individual issuers, including governments and their agencies. Generally, the Fund’s fixed-income securities will decrease in value if interest rates rise and vice versa. In a low interest rate environment, risks associated with rising rates are heightened. Declines in dealer market-making capacity as a result of structural or regulatory changes could decrease liquidity and/or increase volatility in the fixed-income markets.

Interest Rate Risk - The risk that a change in interest rates will cause a fall in the value of fixed-income securities, including U.S. Government securities, in which the Fund invests. Generally the value of the Fund’s fixed income securities will vary inversely with the direction of prevailing interest rates. Changing interest rates may have unpredictable effects on the markets and may affect the value and liquidity of instruments held by the Fund.

Corporate Fixed Income Securities Risk - Corporate fixed-income securities are fixed-income securities issued by public and private businesses. Corporate fixed-income securities respond to economic developments, especially changes in interest rates, as well as perceptions of the creditworthiness and business prospects of individual issuers. Corporate fixed income securities are subject to the risk that the issuer may not be able to pay interest or, ultimately, to repay principal upon maturity. Interruptions or delays of these payments could adversely affect the market value of the security.

Commercial Paper Risk - Commercial paper is a short-term obligation with a maturity generally ranging from one to 270 days and is issued by U.S. or foreign companies or other entities in order to finance their current operations. Such investments are unsecured and usually discounted from their value at maturity. The value of commercial paper may be affected by changes in the credit rating or financial condition of the issuing entities and will tend to fall when interest rates rise and rise when interest rates fall. Asset-backed commercial paper may be issued by structured investment vehicles or other conduits that are organized to issue the commercial paper and to purchase trade receivables or other financial assets. The repayment of asset-backed commercial

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paper depends primarily on the cash collections received from such an issuer’s underlying asset portfolio and the issuer’s ability to issue new asset-backed commercial paper.

Credit Risk - The risk that the issuer of a security or the counterparty to a contract will default or otherwise become unable to honor a financial obligation.

U.S. Government Securities Risk - Although U.S. Government securities are considered to be among the safest investments, they are not guaranteed against price movements due to changing interest rates. Obligations issued by some U.S. Government agencies are backed by the U.S. Treasury, while others are backed solely by the ability of the agency to borrow from the U.S. Treasury or by the agency’s own resources.

Investing in the United States Risk - The Fund focuses its investments in the United States. As a result, the Fund may be more susceptible to economic, political, regulatory or other events or conditions affecting issuers within the United States, and may be subject to greater price volatility and risk of loss, than a fund holding more geographically diverse investments.

Prepayment and Extension Risk - When interest rates fall, issuers of high interest debt obligations may pay off the debts earlier than expected (prepayment risk), and the Fund may have to reinvest the proceeds at lower yields. When interest rates rise, issuers of lower interest debt obligations may pay off the debts later than expected (extension risk), thus keeping the Fund’s assets tied up in lower interest debt obligations.

Asset-Backed Securities Risk - Asset-backed securities are securities backed by non-mortgage assets such as company receivables, truck and auto loans, leases and credit card receivables. Asset-backed securities may be issued as pass-through certificates, which represent undivided fractional ownership interests in the underlying pools of assets. Payment of principal and interest on asset-backed securities is dependent largely on the cash flows generated by the assets backing the securities, and asset-backed securities may not have the benefit of any security interest in the related assets.

Residential Mortgage-Backed Securities Risk - Mortgage-backed securities are fixed income securities representing an interest in a pool of underlying mortgage loans. Mortgage-backed securities are sensitive to changes in interest rates, but may respond to these changes differently from other fixed income securities due to the possibility of

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prepayment of the underlying mortgage loans. As a result, it may not be possible to determine in advance the actual maturity date or average life of a mortgage-backed security. Rising interest rates tend to discourage re-financings, with the result that the average life and volatility of the security will increase, exacerbating its decrease in market price. When interest rates fall, however, mortgage-backed securities may not gain as much in market value because of the expectation of additional mortgage prepayments, which must be reinvested at lower interest rates.

Commercial Mortgage-Backed Securities Risk - Commercial mortgage-backed securities include securities that reflect an interest in, and are secured by, mortgage loans on commercial real property. Many of the risks of investing in commercial mortgage-backed securities reflect the risks of investing in the real estate securing the underlying mortgage loans. These risks reflect the effects of local and other economic conditions on real estate markets, the ability of tenants to make loan payments, and the ability of a property to attract and retain tenants. Commercial mortgage-backed securities may be less liquid and exhibit greater price volatility than other types of mortgage- or asset-backed securities.

Inflation Protected Securities Risk - Inflation protected securities, including TIPS, are fixed income securities for which the principal and/or interest income paid is linked to inflation rates. The relationship between an inflation protected security and its associated inflation index affects both the sum the Fund is paid when the security matures and the amount of interest that the security pays the Fund. With inflation (a rise in the index), the principal of the security increases. With deflation (a drop in the index), the principal of the security decreases. Inflation protected securities pay interest at a fixed rate. Because the rate is applied to the adjusted principal, however, interest payments can vary in amount from one period to the next. If inflation occurs, the interest payment increases. In the event of deflation, the interest payment decreases. At the maturity of a security, the Fund receives the adjusted principal or the original principal, whichever is greater.

Money Market Instruments Risk - The value of money market instruments may be affected by changing interest rates and by changes in the credit ratings of the investments. An investment in a money market fund is not a bank deposit and is not insured or guaranteed by any bank, the FDIC or any other government agency. Certain money market funds float their net asset value while others seek to preserve the value of investments at a stable net asset value (typically, $1.00 per share). An investment in a money market fund, even an investment in a fund seeking to maintain a stable net asset value per share, is not

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guaranteed and it is possible for the Fund to lose money by investing in these and other types of money market funds. The regulations governing money market funds were recently amended in July, 2023, and their implementation and interpretation, as well as enforcement, may affect the manner of operation, performance and/or yield of money market funds.

Liquidity Risk - Certain securities may be difficult or impossible to sell at the time and the price that the Fund would like. The Fund may have to accept a lower price to sell a security, sell other securities to raise cash, or give up an investment opportunity, any of which could have a negative effect on Fund management or performance.

Valuation Risk - The risk that a security may be difficult to value. The Fund may value certain securities at a price higher or lower than the price at which they can be sold. This risk may be especially pronounced for investments that are illiquid or may become illiquid.

Active Management Risk - The Fund is subject to the risk that the Adviser’s judgments about the attractiveness, value, or potential appreciation of the Fund’s investments may prove to be incorrect. If the investments selected and strategies employed by the Fund fail to produce the intended results, the Fund could underperform in comparison to its benchmark index or other funds with similar objectives and investment strategies.

Investment in Other Investment Companies Risk - Because the Fund invests in other investment companies, such as ETFs, the Fund will be subject to substantially the same risks as those associated with the direct ownership of the securities held by such other investment companies. As a shareholder of another investment company, the Fund relies on that investment company to achieve its investment objective. If the investment company fails to achieve its objective, the value of the Fund’s investment could decline, which could adversely affect the Fund’s performance. By investing in another investment company, Fund shareholders indirectly bear the Fund’s proportionate share of the fees and expenses of the other investment company, in addition to the fees and expenses that Fund shareholders directly bear in connection with the Fund’s own operations. The Fund does not intend to invest in other investment companies unless the Adviser believes that the potential benefits of the investment justify the payment of any additional fees or expenses. Federal securities laws impose limitations on the Fund’s ability to invest in other investment companies.

New Adviser Risk - The Adviser has not previously served as an adviser to a registered investment company. As a result, investors do not have

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a track record of managing an ETF from which to judge the Adviser, and the Adviser may not achieve the intended result in managing the Fund.

New Fund Risk - Because the Fund is new, investors in the Fund bear the risk that the Fund may not be successful in implementing its investment strategy, may not employ a successful investment strategy, or may fail to attract sufficient assets under management to realize economies of scale, any of which could result in the Fund being liquidated at any time without shareholder approval and at a time that may not be favorable for all shareholders. Such liquidation could have negative tax consequences for shareholders and will cause shareholders to incur expenses of liquidation.

Performance Information

The Fund is new, and therefore has no performance history. Once the Fund has completed a full calendar year of operations, a bar chart and table will be included that will provide some indication of the risks of investing in the Fund by showing the variability of the Fund’s returns and comparing the Fund’s performance to a broad measure of market performance. Of course, the Fund’s past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future.

Current performance information is available online at www.frontierasset.com or by calling toll-free at 1-866-326-3837.

Investment Adviser and Sub-Adviser

Frontier Asset Management, LLC is the Fund’s investment adviser. Exchange Traded Concepts, LLC serves as the trading sub-adviser to the Fund.

Portfolio Managers

Clifford Stanton, CFA, Director of Investments, has managed the Fund since its inception in 2024.

Paul Wright, CFA, Portfolio Strategist, has managed the Fund since its inception in 2024.

Ali Toyran, Portfolio Strategist, has managed the Fund since its inception in 2024.

Benton Peller, CFA, CAIA, Senior Investment Analyst, has managed the Fund since its inception in 2024.

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PURCHASE AND SALE OF FUND SHARES

The Fund issues shares to (or redeems shares from) certain institutional investors known as “Authorized Participants” (typically market makers or other broker-dealers) only in large blocks of at least 10,000 shares known as “Creation Units.” Creation Unit transactions are conducted in exchange for the deposit or delivery of a portfolio of in-kind securities designated by the Fund and/or cash.

Individual shares of the Fund may only be purchased and sold on the Exchange, other national securities exchanges, electronic crossing networks and other alternative trading systems through a broker-dealer at market prices. Because Fund shares trade at market prices rather than at NAV, Fund shares may trade at a price greater than NAV (premium) or less than NAV (discount). When buying or selling shares in the secondary market, you 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) (the “bid-ask spread”). Recent information regarding the Fund’s NAV, market price, premiums and discounts, and bid-ask spreads is available at www.frontierasset.com.

TAX INFORMATION

The Fund intends to make distributions that may be taxed as qualified dividend income, ordinary income or capital gains if you are not investing through a tax-deferred arrangement, such as a 401(k) plan or individual retirement account (“IRA”), in which case your distribution will be taxed when withdrawn from the tax-deferred 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 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.

FRT-SM-002-0100

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