# EDGAR Filing Document

**Accession Number:** 0001806095
**File Stem:** 0001398344-25-013995
**Filing Date:** 2025-7
**Character Count:** 22739
**Document Hash:** 0d338f90a877694191d7c50ad7ebbc8a
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-25-013995.hdr.sgml**: 20250729

**ACCESSION NUMBER**: 0001398344-25-013995

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 4

**FILED AS OF DATE**: 20250729

**DATE AS OF CHANGE**: 20250729

**EFFECTIVENESS DATE**: 20250729

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Datum One Series Trust
- **CENTRAL INDEX KEY:** 0001806095

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-237048
- **FILM NUMBER:** 251158772

**BUSINESS ADDRESS:**
- **STREET 1:** 333 SOUTH WABASH AVE.
- **STREET 2:** 43RD FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60604
- **BUSINESS PHONE:** 866-494-4270

**MAIL ADDRESS:**
- **STREET 1:** 50 S. LASALLE STREET
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60603

## Series and Classes Contracts Data

### BRANDES SEPARATELY MANAGED ACCOUNT RESERVE TRUST (Series ID: S000084891)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000249545 | BRANDES SEPARATELY MANAGED ACCOUNT RESERVE TRUST | SMARX           |

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| | | |
|:---|:---|:---|
| **Summary Prospectus** | July 29, 2025 | ![](fp0093993-8_biiex1.jpg) |
| **Separately Managed Account Reserve Trust** | **Separately Managed Account Reserve Trust** | **Separately Managed Account Reserve Trust** |
| SMARX | SMARX | SMARX |

---

*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, Reports to Shareholders, Statement of Additional Information and other information about the Fund online at https://www.brandes.com/funds/resources. You may also obtain this information at no cost by calling 1-800-395-3807 or by e-mail at info@brandes.com. The Fund's Prospectus and Statement of Additional Information, both dated July 29, 2025, are incorporated by reference into this Summary Prospectus.* 

**Investment Objective** 

The **Brandes Separately Managed Account Reserve Trust** (the "Separately Managed Account Reserve Trust" or "Fund") seeks to maximize long-term 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 and example below.**

**Shareholder Fees (Fees paid directly from your investment)** <br>

**Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)**<br>

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| | |
|:---|:---|
| Management Fees<sup>(1),(2)</sup> | 0.00% |
| Other Expenses<sup>(2),(3),(4)</sup> | 0.00% |
| **Total Annual Fund Operating Expenses**<sup>(2)</sup> | **0.00%** |

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<sup>(1)</sup> Investors pay any management fees, advisory fees or expenses at the wrap account level. The Fund does not pay any management fees, advisory fees or expenses to the Brandes Investment Partners, L.P. (the "Adviser") or affiliates of the Adviser.

<sup>(2)</sup> Investors in the Fund must be clients of "wrap account" programs sponsored by broker-dealers which have agreements with the Adviser, or certain other persons or entities. Investors pay management fees and other expenses at the wrap account level. See "Shareholder Information."

<sup>(3)</sup> Investors pay any ordinary expenses at the wrap account level. The Fund does not pay any ordinary expenses.

**Example**<br>

This Example illustrates the amount of expenses you could incur if the Adviser charged the Fund for its services.(1) This Example is intended to help you compare the costs of investing in the Fund with the cost of investing in other mutual 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 on these assumptions your costs would be:

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| | | | |
|:---|:---|:---|:---|
| **1 Year** | **3 Years** | **5 Years** | **10 Years** |
| $0 | $0 | $0 | $0 |

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**Portfolio Turnover**<br>

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 its most recent fiscal period (October 1, 2024 through March 31, 2025), the Fund's portfolio turnover rate was 6.22% of the average value of its portfolio.

**Principal Investment Strategies** 

The Fund invests primarily in a diversified portfolio of debt securities. These include debt obligations issued or guaranteed by the U.S. Government and foreign governments and their agencies and instrumentalities, debt securities issued by U.S. and foreign companies, collateralized mortgage obligations, and U.S. and foreign mortgage-backed and asset-backed debt securities. The Fund may invest up to 60% of its total assets in non-U.S. dollar securities, and may engage in currency hedging. Brandes Investment Partners, L.P., the investment adviser to the Fund (the "Adviser"), uses the principles of value investing to analyze and select debt securities for the Fund's investment portfolio. As part of this process, the Adviser reviews such measures as the issuer's free cash flow, debt-to-equity ratio, earnings before interest, taxes, depreciation and amortization ("EBITDA")-to-interest ratio, debt-to-EBITDA ratio, or other measures of credit worthiness in evaluating the securities of a particular issuer.

The Fund may invest in debt instruments of any maturity or with no maturity and it may invest in both investment-grade securities and non-investment grade securities (also known as "high-yield bonds" or "junk bonds"). Up to 60% of the Fund's total debt securities may be junk bonds. The Fund invests in debt securities that can be purchased at prices or yield premiums over U.S. Treasury securities (or other relatively risk-free securities) which the Adviser believes to be attractive based on the Adviser's assessment of each security's intrinsic value.

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| | |
|:---|:---|
| **Summary Prospectus** July 29, 2025 | 1 of 8 |

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The Adviser primarily uses effective duration and modified duration measures ("duration") to approximate the sensitivity of a security's price to changes in interest rates. The longer a security's duration, the more sensitive it will be to changes in interest rates. Similarly, a portfolio with a longer average portfolio duration will be more sensitive to changes in interest rates than a portfolio with a shorter average portfolio duration. The average portfolio duration of the Fund typically will vary and, under normal market conditions, will range between one and ten years.

The Adviser will typically sell a security from the Fund's portfolio when the Adviser's research process identifies a significantly better investment opportunity. The Adviser may also sell certain portfolio securities from time to time in order to adjust the average maturity, duration or yield of the Fund's portfolio or to meet requirements for redemption of Fund shares.

**Principal Investment Risks** 

Because the values of the Fund's investments will fluctuate with market conditions, so will the value of your investment in the Fund. You could lose money on your investment in the Fund, or the Fund could underperform other investments. The principal risks of investing in the Fund (in alphabetical order after the first six risks) are:

**Market Risk.** The value of the Fund's investments may increase or decrease in response to expected real or perceived economic, political, geopolitical or financial events in the U.S. or global markets. The frequency and magnitude of such changes in value cannot be predicted. Certain securities and other investments held by the Fund may experience increased volatility, illiquidity, or other potentially adverse effects in response to changing market conditions, inflation or deflation, changes in interest rates, lack of liquidity in the bond or equity markets or volatility in the equity markets. Market disruptions may be caused by local or regional events such as financial institution failures, war, acts of terrorism, the spread of infectious illness (including epidemics and pandemics) or other public health issues, recessions or other events or adverse investor sentiment or other political, geopolitical, regulatory, economic and social developments, and developments that impact specific economic sectors, industries or segments of the market. During periods of market disruption or other abnormal market conditions, the Fund's exposure to risks described elsewhere in this Prospectus will likely increase.

**Issuer Risk.** The market price of a security can go up or down more than the market, or perform differently from the market, due to factors specifically relating to the security's issuer, such as disappointing earnings reports, reduced demand for the issuer's goods or services, poor management performance, major litigation relating to the issuer, changes in government regulation affecting the issuer or the competitive environment. The Fund may experience a substantial or complete loss on any investment.

**Credit Risk.** Fixed income securities are subject to varying degrees of credit risk, which are often reflected in credit ratings. The value of an issuer's securities held by the Fund may decline in response to adverse developments with respect to the issuer or if the issuer or any guarantor is, or is perceived to be unwilling or unable to pay or perform in a timely fashion. The Fund could be delayed or hindered in its enforcement of rights against an issuer, guarantor or counterparty. Subordinated securities (meaning securities that rank below other securities with respect to payments and/or claims on the issuer's assets) are more likely to suffer a credit loss than non-subordinated securities of the same issuer and will be disproportionately affected by a default, downgrade or perceived decline in creditworthiness. The Fund may experience a substantial or complete loss on any investment.

**Interest Rate Risk.** As with most fixed income funds, the income on and value of your shares in the Fund will fluctuate along with interest rates. When interest rates rise, the market prices of the debt securities the Fund owns usually decline. When interest rates fall, the prices of these securities usually increase. A rise in rates tends to have a greater impact on the prices of longer term or duration securities. During periods of low interest rates, the Fund may be subject to a greater risk of rising interest rates than would typically be the case. Recent and potential future changes in government policy may affect interest rates.

**Liquidity Risk.** Liquidity risk exists when particular investments are or become difficult or impossible to purchase or sell. Markets may become illiquid when, for example, there are few, if any, interested buyers or sellers or when dealers are unwilling or unable to make a market for certain securities. As a general matter, dealers recently have been less willing to make markets for fixed income securities. During times of market turmoil, there have been, and may be, no buyers for entire asset classes, including U.S. Treasury securities. The Fund's investments in illiquid securities may reduce the return of the Fund because it may be unable to sell such illiquid securities at an advantageous time or price. Illiquid securities may also be difficult to value.

**Duration Risk.** The longer the maturity of a fixed income security, the more its price will vary as levels of interest rates change. The Fund can hold securities with long-dated maturities. Duration is a measure of how sensitive a security or portfolio is to moves in interest rates. If and when the Fund's duration is significantly longer than that of its benchmark index, the Fund's portfolio is likely to be more volatile when market interest rates move materially.

The remaining principal risks are presented in alphabetical order. Each risk summarized below is considered a "principal risk" of investing in the Fund, regardless of the order in which it appears.

**Active Management Risk.** The Adviser is an active manager, and the Fund's investments may differ from the benchmark. The value of your investment may go down if the Adviser's judgment about the attractiveness or value of, or market trends affecting, a particular security, industry, sector or region, or about market movements, is incorrect or does not produce the desired results, or if there are imperfections, errors or limitations in the models, tools or data used by the Adviser.

**Currency Risk.** Because the **Fund** invests in securities denominated in foreign currencies, the U.S. dollar values of its investments fluctuate as a result of changes in foreign exchange rates. Such changes will also affect the Fund's income.

**Foreign Securities Risk.** Investing in securities of foreign issuers or issuers with significant exposure to foreign markets involves additional risks. Foreign markets can be less liquid, less regulated, less transparent and more volatile than U.S.

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| | |
|:---|:---|
| **Summary Prospectus** July 29, 2025 | 2 of 8 |

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markets. The value of the fund's foreign investments may decline, sometimes rapidly or unpredictably, because of factors affecting the particular issuer as well as foreign markets and issuers generally, such as unfavorable or unsuccessful government actions, reduction of government or central bank support, wars, tariffs and trade disruptions, political or financial instability, social unrest or other adverse economic or political developments. Changes in currency rates and exchange control regulations, and the imposition of sanctions, confiscations, trade restrictions, and other government restrictions by the United States and/or other governments may adversely affect the value of the Fund's investments in foreign securities. These risks can be elevated in emerging markets. Investments in emerging markets are generally more volatile than investments in developed foreign markets.

**Mortgage- and Asset-Backed Securities Risk.** Mortgage- and asset-backed securities may decline in value when defaults on the underlying mortgages or assets occur and may exhibit additional volatility in periods of changing interest rates. When interest rates decline, the prepayment of mortgages or assets underlying such securities may require the Fund to reinvest that money at lower prevailing interest rates, resulting in reduced returns. When interest rates rise, prepayments may decline, resulting in longer-than-anticipated maturities.

**Non-Investment Grade (High Yield Bond) Securities Risk.** Below investment grade debt securities are speculative and involve a greater risk of default and price change due to changes in the issuer's creditworthiness. The market prices of these debt securities may fluctuate more than the market prices of investment grade debt securities and may decline significantly in periods of general economic difficulty. These securities may be difficult or impossible to sell during periods of uncertainty or market turmoil.

**U.S. Government Obligations Risk.** Securities issued by the U.S. Treasury and certain U.S. government agencies are backed by the full faith and credit of the U.S. government. Notwithstanding that such securities are backed by the full faith and credit of the U.S. government, circumstances could arise that would prevent or delay the payment of interest or principal on these securities, which could adversely affect their market value and the Fund's performance. Securities issued by certain other U.S. government-related entities, principally Fannie Mae and Freddie Mac, are often categorized as U.S. government obligations, but do not enjoy the full backing of the U.S. government.

**Value Style Risk.** The value style of investing has caused the Fund's performance to deviate from the performance of market benchmarks and other managers for substantial periods of time and may do so in the future.

**Performance** 

The Predecessor Fund reorganized into the Fund on August 5, 2024 following shareholder approval. The Fund commenced operations as of this date and assumed the financial and performance history of the Predecessor Fund. The following bar chart and table are intended to help you understand the risks of investing in the Fund. The Fund performance shown below is the performance of the Predecessor Fund until August 5, 2024, after which performance shown is that of the Fund. The Predecessor Fund was managed using investment policies, objectives, guidelines and restrictions that were substantially similar to those of the Fund. Prior to the reorganization, the Fund had not yet commenced operations. The bar chart and performance table below provide an indication of the risks of an investment in the Fund by showing how the Fund's performance varied from year to year, and by showing how the Fund's average annual returns compare with those of a broad measure of market performance. Performance reflects contractual fee waivers in effect. If fee waivers were not in place, performance would be reduced. 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 shown are not relevant to investors who hold their Fund shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts ("IRAs"). 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 on the Fund's website at www.brandesfunds.com or by calling 1-800-395-3807. Performance does not reflect the fees charged in the wrap program.

**Separately Managed Account Reserve Trust Year-by-Year Total Returns as of December 31,** 

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| | | |
|:---|:---|:---|
| Best Quarter  | 4Q 2023 | 7.65% |
| Worst Quarter  | 2Q 2022 | -6.86% |

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The Fund's fiscal year end is March 31. The Fund's most recent quarterly return (since the end of the calendar year) through March 31, 2025 was 2.49%.

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| | |
|:---|:---|
| **Summary Prospectus** July 29, 2025 | 3 of 8 |

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**Average Annual Total Returns For periods ended December 31, 2024** 

(Returns reflect applicable sales charges)

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| | | | |
|:---|:---|:---|:---|
| **Brandes Separately Managed Account Reserve Trust**  | **1 Year** | **5 Year** | **10 Year** |
| **Return Before Taxes** | 4.52% | 2.14% | 2.98% |
| &nbsp;&nbsp;&nbsp;**Return After Taxes on Distributions** | 2.49% | 0.46% | 1.16% |
| &nbsp;&nbsp;&nbsp;**Return After Taxes on Distributions and Sale of Fund Shares** | 2.66% | 0.91% | 1.47% |
| **Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)** | 1.25% | -0.33% | 1.35% |
| **Bloomberg U.S. Intermediate Credit Index (reflects no deduction for fees, expenses or taxes)** | 4.01% | 1.39% | 2.44% |

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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, and after-tax returns shown are not relevant to investors who are exempt from tax or hold their Fund shares through tax-advantaged accounts such as 401(k) plans or individual retirement accounts.

The "Return After Taxes on Distributions and Sale of Fund Shares" is higher than other return figures when a capital loss occurs upon the redemption of Fund shares.

**Management** 

*Investment Adviser.* Brandes Investment Partners, L.P.

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| | | |
|:---|:---|:---|
| **Portfolio Managers** | **Position with Adviser** | **Managed the <br> Fund Since\*:** |
| Charles S. Gramling, CFA | Director, Fixed Income and Fixed Income Investment Committee Member | 2024 |
| David J. Gilson, CFA | Senior Fixed Income Analyst and Fixed Income Investment Committee Member | 2024 |
| Timothy M. Doyle, CFA | Fixed Income Portfolio Manager and Fixed Income Investment Committee Member | 2024 |

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\* Each Portfolio Manager served as a portfolio manager of the Predecessor Fund, which reorganized into the Fund on August 5, 2024.

**Purchase and Sale of Fund Shares** 

In most cases, purchase and redemption orders are effected based on instructions from the wrap program adviser (in its capacity as investment adviser or sub-adviser to the applicable wrap account) to the broker-dealer who executes trades for the account. The sponsor or broker-dealer acting on behalf of an eligible client must submit a purchase or redemption order to the Transfer Agent, by telephone at 1-800-395-3807, either directly or through an appropriate clearing agency. The Fund has no maximum or minimum initial investment requirements.

**Tax Information** 

The Fund's distributions are taxed as ordinary income or capital gains, unless you are investing through a tax-advantaged account, such as a 401(k) plan or an individual retirement account. Distributions on investments made through tax-advantaged accounts, such as 401(k) plans or IRAs, may be taxed later upon withdrawal of assets from those accounts.

**Payments to Broker-Dealers and Other Financial Intermediaries** 

If you purchase the Fund through a broker-dealer or other financial intermediary, 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.

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| | |
|:---|:---|
| **Summary Prospectus** July 29, 2025 | 4 of 8 |

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![](fp0093993-8_biiex8.jpg)