# EDGAR Filing Document

**Accession Number:** 0000933691
**File Stem:** 0000933691-26-000215
**Filing Date:** 2026-4
**Character Count:** 53453
**Document Hash:** 7c86d9c6d8ca890f1db54afd53732603
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000933691-26-000215.hdr.sgml**: 20260427

**ACCESSION NUMBER**: 0000933691-26-000215

**CONFORMED SUBMISSION TYPE**: 497K

**PUBLIC DOCUMENT COUNT**: 3

**FILED AS OF DATE**: 20260427

**DATE AS OF CHANGE**: 20260427

**EFFECTIVENESS DATE**: 20260427

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** JNL SERIES TRUST
- **CENTRAL INDEX KEY:** 0000933691

**ORGANIZATION NAME:**
- **EIN:** 381659835
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497K
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 033-87244
- **FILM NUMBER:** 26896640

**BUSINESS ADDRESS:**
- **STREET 1:** 1 CORPORATE WAY
- **CITY:** LANSING
- **STATE:** MI
- **ZIP:** 48951
- **BUSINESS PHONE:** (517) 367-4336

**MAIL ADDRESS:**
- **STREET 1:** 1 CORPORATE WAY
- **CITY:** LANSING
- **STATE:** MI
- **ZIP:** 48951

## Series and Classes Contracts Data

### JNL/DoubleLine Shiller Enhanced CAPE Fund (Series ID: S000050455)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000159263 | JNL/DoubleLine Shiller Enhanced CAPE Fund (A) |  |
| C000159264 | JNL/DoubleLine Shiller Enhanced CAPE Fund (I) |  |

**Summary Prospectus – April 27, 2026**

**JNL/DoubleLine<sup>®</sup> Shiller Enhanced CAPE<sup>®</sup> Fund**

**Class A**

**Class I**

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 and other information about the Fund, including the Statement of Additional Information ("SAI") and most recent reports to shareholders, online at https://www.jackson.com/fund-literature.html. You can also get this information at no cost by calling 1-800-644-4565 (Annuity and Life Service Center), 1-800-599-5651 (NY Annuity and Life Service Center), 1-800-777-7779 (for contracts purchased through a bank or financial institution) or 1-888-464-7779 (for NY contracts purchased through a bank or financial institution), or by sending an email request to <u>ProspectusRequest@jackson.com</u>. The current Prospectus and SAI, both dated April 27, 2026, as amended, are incorporated by reference into (which means they legally are a part of) this Summary Prospectus.

**Investment Objective.** The investment objective of the Fund is to seek total return (capital appreciation and current income) which exceeds the total return of its benchmark.

**Expenses.** This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund.

The expenses do not reflect the expenses of the variable insurance contracts or the separate account through which you indirectly invest in the Fund, whichever may be applicable, and the total expenses would be higher if they were included.

You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the tables and examples below.

**Shareholder Fees<br> (fees paid directly from your investment)**<br> Not Applicable

---

| | |
|:---|:---|
| **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** | **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** |
| | **Class A** |
| Management Fee | 0.53% |
| Distribution and/or Service (12b-1) Fees | 0.30% |
| Other Expenses<sup>1</sup> | 0.15% |
| Acquired Fund Fees and Expenses<sup>2</sup> | 0.01% |
| Total Annual Fund Operating Expenses<sup>3</sup> | 0.99% |

---

<sup>1</sup> "Other Expenses" include an Administrative Fee of 0.15% which is payable to Jackson National Asset Management, LLC ("JNAM" or "Adviser").

<sup>2</sup> Acquired Fund Fees and Expenses are the indirect expenses of investing in other investment companies. Accordingly, the expense ratio presented in the Financial Highlights section of the prospectus will not correlate to the Total Annual Fund Operating Expenses disclosed above.

<sup>3</sup> Expense information has been restated to reflect current fees.

---

| | |
|:---|:---|
| **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** | **Annual Fund Operating Expenses <br> (Expenses that you pay each year as a percentage of the value of your investment)** |
| | **Class I** |
| Management Fee | 0.53% |
| Distribution and/or Service (12b-1) Fees | 0.00% |
| Other Expenses<sup>1</sup> | 0.15% |
| Acquired Fund Fees and Expenses<sup>2</sup> | 0.01% |
| Total Annual Fund Operating Expenses<sup>3</sup> | 0.69% |

---

<sup>1</sup> "Other Expenses" include an Administrative Fee of 0.15% which is payable to Jackson National Asset Management, LLC ("JNAM" or "Adviser").

<sup>2</sup> Acquired Fund Fees and Expenses are the indirect expenses of investing in other investment companies. Accordingly, the expense ratio presented in the Financial Highlights section of the prospectus will not correlate to the Total Annual Fund Operating Expenses disclosed above.

<sup>3</sup> Expense information has been restated to reflect current fees.

**Expense Example.** This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. Also, this example does not reflect the expenses of the variable insurance contracts or the separate account through which you indirectly invest in the Fund, whichever may be applicable, and the total expenses would be higher if they were included. The table below shows the expenses you would pay on a $10,000 investment, assuming (1) 5% annual return; (2) redemption at the end of each time period; and (3) that the Fund operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

---

| | | | |
|:---|:---|:---|:---|
| **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class A** | **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class A** | **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class A** | **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class A** |
| 1 year | 3 years | 5 years | 10 years |
| $101 | $315 | $547 | $1213 |

---

---

| | | | |
|:---|:---|:---|:---|
| **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class I** | **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class I** | **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class I** | **JNL/DoubleLine® Shiller Enhanced CAPE® Fund Class I** |
| 1 year | 3 years | 5 years | 10 years |
| $70 | $221 | $384 | $859 |

---

**Portfolio Turnover (% of average value of portfolio).** 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. These costs, which are not reflected in Annual Fund Operating Expenses or in the Expense Example above, affect the Fund's performance.

---

| | |
|:---|:---|
| **Period** | |
| 1/1/2025 - 12/31/2025 | 47% |

---

**Principal Investment Strategies.** The Fund seeks to achieve its objective by looking to achieve total return (capital appreciation and current income) in excess of the Shiller Barclays CAPE<sup>®</sup> US Sector II ER USD Index (the "Index").

The Fund will seek to use derivatives, or a combination of derivatives and direct investments, to provide a return that tracks closely the performance of the Index. The Fund will also invest in a portfolio of debt securities to seek to provide additional long-term total return. The Fund uses investment leverage in seeking to provide both the Index return and the return on a portfolio of debt securities; it is likely that the Fund will have simultaneous exposures both to the Index and to debt securities, in each case in an amount potentially up to the value of the Fund's assets. It is possible that the Fund could lose money at the same time on both its investments in debt securities and its exposure to the Index.

The Fund will normally use derivatives in an attempt to create an investment return approximating the Index's return. The transaction pricing of any swap transaction will reflect a number of factors, including the limited availability of the Index, that will cause the return on the swap transaction to underperform the Index. Please see "*Note regarding Index-Based Swaps*" in the Prospectus for more information. The Fund expects to use only a small percentage of its assets to attain the desired exposure to the Index because of the structure of the derivatives the Fund expects to use. As a result, use of those derivatives along with other investments will create investment leverage in the Fund's portfolio. In certain cases, however, such derivatives might be unavailable or the pricing of those derivatives might be unfavorable; in those cases, the Fund might attempt to replicate the Index return by purchasing some or all of the securities comprising the Index at the time. If the Fund at any time invests directly in the securities comprising the Index, those assets will be unavailable for investment in debt instruments, and the Fund's ability to pursue its investment strategy and achieve its investment objective may be limited.

To the extent use of the above-described derivatives strategy leaves a substantial portion of the Fund's assets available for other investment by the Fund, the Fund expects to invest those assets in a portfolio of debt instruments managed by DoubleLine Capital LP (the "Sub-Adviser") to seek to provide additional long-term total return.

The Index incorporates the principles of long-term investing distilled by Dr. Robert Shiller and expressed through the CAPE<sup>®</sup> (Cyclically Adjusted Price Earnings) ratio (the "CAPE<sup>®</sup> Ratio"). The Index aims to identify undervalued sectors based on a modified CAPE<sup>®</sup> Ratio, and then uses a momentum factor to seek to reduce the risk of investing in a sector that may appear undervalued, but which may have also had recent relative price underperformance due to fundamental issues with the sector that may negatively affect the sector's long-term total return.

The classic CAPE<sup>®</sup> Ratio is used to assess equity market valuations and averages ten years of reported earnings to account for earnings and market cycles. Traditional valuation measures, such as the price-earnings (PE) ratio, by contrast, typically rely on earnings information from only the past year. The Index uses a modified version of the classic CAPE<sup>®</sup> Ratio to standardize the comparison across sectors. There can be no assurance that the Index will provide a better measure of value than more traditional measures, over any period or over the long term.

Through the Index, the Fund will have focused exposures to the sectors making up the Index. As of the date of this Prospectus, the eleven sectors making up the Index include: Communication Services, Consumer Discretionary, Consumer Staples, Energy, Financials, Health Care, Industrials, Materials, Technology, Utilities and Real Estate. As a result, the Fund's net asset value may be affected to a greater degree by factors affecting those sectors or industries than a fund that invests more broadly.

Under normal circumstances, to the extent use of the above-described derivatives strategy leaves a substantial portion of the Fund's assets available for other investment by the Fund, the Fund intends to invest those assets in a portfolio of debt instruments managed by the Sub-Adviser to seek to provide additional long-term total return. The Fund may invest directly in debt instruments; alternatively, the Sub-Adviser may choose to invest all or a portion of the Fund's assets in one or more fixed-income funds managed by the Sub-Adviser. Debt instruments in which the Fund may invest include, by way of example, (i) securities or other income-producing instruments issued or guaranteed by the U.S. Government, its agencies, instrumentalities or sponsored corporations (including

inflation-protected securities); (ii) corporate obligations (including foreign hybrid securities); (iii) mortgage-backed securities (including commercial and residential mortgage-backed securities) and other asset-backed securities (including commodity-linked derivatives), collateralized mortgage obligations ("CMOs"), government mortgage pass-through securities, multiclass pass-through securities, private mortgage pass-through securities, stripped mortgage securities (*e.g.*, interest-only and principal-only securities), and inverse floaters; (iv) collateralized debt obligations ("CDOs"), including collateralized loan obligations ("CLOs"); (v) foreign securities (corporate and government), including emerging market securities; (vi) bank loans and assignments and other fixed and floating rate loans (including, among others, senior loans, second lien or other subordinated or unsecured fixed or floating rate loans, delayed funding loans and revolving credit facilities); (vii) municipal securities and other debt obligations issued by states, local governments, and government-sponsored entities, including their agencies, authorities, and instrumentalities; (viii) inflation-indexed bonds; (ix) convertible securities; (x) preferred securities; (xi) Real Estate Investment Trust ("REIT") securities; (xii) distressed and defaulted securities; (xiii) payment-in-kind bonds; (xiv) zero-coupon bonds; (xv) custodial receipts, cash and cash equivalents; (xvi) short-term, high quality investments, including, for example, commercial paper, bankers' acceptances, certificates of deposit, bank time deposits, repurchase agreements, and investments in money market mutual funds or similar pooled investments; and (xvii) other instruments bearing fixed, floating, or variable interest rates of any maturity. The Fund may invest in any level of the capital structure of an issuer of mortgage-backed or asset-backed securities, including the equity or "first loss" tranche.

The Sub-Adviser may invest Fund assets in other funds managed by the Sub-Adviser from time to time in order to obtain the Fund's desired investment exposure. Investing in other funds managed by the Sub-Adviser involves potential conflicts of interest. For example, the Sub-Adviser or its affiliates may receive fees based on the amount of assets invested in such other investment vehicles. This and other factors may give the Sub-Adviser an economic or other incentive to make or retain an investment for the Fund in an affiliated investment vehicle in lieu of other investments that may also be appropriate for the Fund. To reduce this potential conflict of interest, the Sub-Adviser has agreed to reduce its advisory fee to the extent of advisory fees paid to the Sub-Adviser or its affiliates by other investment vehicles in respect of assets of the Fund invested in those vehicles.

The Fund's portfolio of debt instruments will normally have an overall weighted average effective duration of not less than one year or more than eight years. Duration is a measure of the expected life of a fixed-income instrument that is used to determine the sensitivity of a security's price to changes in interest rates. Effective duration is a measure of the Fund's portfolio duration adjusted for the anticipated effect of interest rate changes on bond and mortgage pre-payment rates. The longer a portfolio's effective duration, the more sensitive it will be to changes in interest rates. The effective duration of the Fund's portfolio of debt instruments may vary materially from its target range, from time to time, and there is no assurance that the effective duration of the portfolio will always be within its target range.

The Fund may invest in debt instruments of any credit quality, including those that are at the time of investment unrated or rated BB+ or lower by S&P or Ba1 or lower by Moody's or the equivalent by any other nationally recognized statistical rating organization. Corporate bonds and certain other fixed-income instruments rated below investment grade, or such instruments that are unrated and determined by the Sub-Adviser to be of comparable quality, are high yield, high risk bonds, commonly known as junk bonds. Generally, lower-rated debt securities offer a higher yield than higher-rated debt securities of similar maturity but are subject to greater risk of loss of principal and interest than higher-rated securities of similar maturity. The Fund may invest up to 33 1/3% of its net assets in junk bonds, bank loans and assignments rated below investment grade or unrated but determined by the Sub-Adviser to be of comparable quality, and credit default swaps of companies in the high yield universe. The Sub-Adviser does not consider the term "junk bonds" to include any mortgage-backed securities or any other asset-backed securities, regardless of their credit rating or credit quality.

The Fund may invest up to 5% of its net assets in defaulted corporate securities. Repayment of defaulted securities and obligations of distressed issuers (including insolvent issuers or issuers in payment or covenant default, in workout or restructuring or in bankruptcy or in solvency proceedings) is subject to significant uncertainties.

The Fund may invest a portion of its net assets in inverse floater securities and interest-only and principal-only securities. An inverse floater is a type of instrument, which may be backed by or related to a mortgage-backed security, that bears a floating or variable interest rate that moves in the opposite direction to movements in interest rates generally or the interest rate on another security or index. Interest-only and principal-only securities may also be backed by or related to a mortgage-backed security. As a result, they are highly sensitive to actual or anticipated changes in prepayment rates on the underlying securities.

The Fund may invest a portion of its net assets in debt instruments (including hybrid securities) issued or guaranteed by companies, financial institutions and government entities in emerging market countries. An "emerging market country" is a country that, at the time the Fund invests in the related fixed-income instruments, is classified as an emerging or developing economy by any supranational organization such as the United Nations, or related entities, or is considered an emerging market country for purposes of constructing a major emerging market securities index.

The Fund may invest in other investment companies, including, for example, other open-end or closed-end investment companies, ETFs, and domestic or foreign private investment vehicles, including investment companies sponsored or managed by the Sub-Adviser and its affiliates. The Fund may engage in short sales, either to earn additional return or to hedge existing investments.

In managing the Fund's debt instruments, under normal market conditions, the Sub-Adviser uses a controlled risk approach. The techniques of this approach attempt to control the principal risk components of the fixed-income markets and may include consideration of:

&nbsp;&nbsp;&nbsp;&nbsp;· security selection within a given sector;

&nbsp;&nbsp;&nbsp;&nbsp;· relative performance of the various market sectors;

&nbsp;&nbsp;&nbsp;&nbsp;· the shape of the yield curve; and

&nbsp;&nbsp;&nbsp;&nbsp;· fluctuations in the overall level of interest rates.

The Sub-Adviser also utilizes active asset allocation and monitors the duration of the Fund's fixed-income securities to seek to mitigate the Fund's exposure to interest rate risk.

**Principal Risks of Investing in the Fund.** An investment in the Fund is not guaranteed. As with any mutual fund, the value of the Fund's shares will change, and you could lose money by investing in the Fund. The principal risks associated with investing in the Fund include:

· *Accounting risk* – The Fund bases investment selections, in part, on information drawn from the financial statements of
issuers. Financial statements may not be accurate, may reflect differing approaches with respect to auditing and reporting standards and
may affect the ability of the Fund's investment manager to identify appropriate investment opportunities.

· *Asset-based securities risk –* Asset-based securities are typically fixed-income securities whose value is related to
the market price of certain commodities, interests, and other items, such as precious metals, as well as other assets, such as credit
card receivables. Although the market price of these securities is expected to follow the market price of the related assets, there may
not be perfect correlation. There are special risks associated with certain types of assets that will also affect the value of asset-based
securities related to those assets. For an example of such special risks, please refer to "Precious metals related securities risk."

· *Commodity-linked derivatives risk –* The value of a commodity-linked derivative investment is typically based upon the
price movements of a commodity, a commodity futures contract or commodity index, or some other readily measurable economic variable. The
value of commodity-linked derivative instruments may be affected by changes in overall market movements, volatility of the underlying
benchmark, volatility in the spot market, changes in interest rates, war, or factors affecting a particular industry or commodity, such
as drought, floods, weather, livestock disease, insufficient storage capacity, embargoes, tariffs and international economic, and political
and regulatory developments. The value of commodity-linked derivatives will rise or fall in response to changes in the underlying commodity
or related index. Investments in commodity-linked derivatives may be subject to greater volatility than non-derivative based investments.
A liquid market may not exist for certain commodity-linked derivatives, and there can be no assurance that one will develop. Commodity-linked
derivatives also may be subject to credit and interest rate risks that generally affect the values of fixed-income securities. Therefore,
at maturity, the Fund may receive more or less principal than it originally invested. The Fund may also receive interest payments that
are more or less than the stated coupon interest payments.

· *Company risk* **–** Investments in U.S. and/or foreign-traded equity securities may fluctuate more than the values
of other types of securities in response to changes in a particular company's financial condition.

· *Corporate loan, sovereign entity loan, and bank loan risk –* Commercial banks, sovereign entities, and other financial
institutions or institutional investors make corporate loans to companies or sovereign entities that need capital to grow, restructure,
or for infrastructure projects. These instruments are commonly referred to as "loans" or "bank loans." Borrowers
generally pay interest on corporate loans at "floating" rates that change in response to changes in market interest rates
such as the Secured Overnight Financing Rate ("SOFR") or the prime rates of U.S. banks. As a result, the value of such loan
investments is generally less exposed to the adverse effects of interest rate fluctuations than investments that pay a fixed rate of interest.
However, the market for certain loans may not be sufficiently liquid, and the Fund may have difficulty selling them. It may take longer
than seven days for transactions in loans to settle. As a result, sale proceeds related to the sale of loans may not be available to make
additional investments until a substantial period after the sale of the loans. Certain loans may be classified as "illiquid"
securities. Additionally, because a loan may not be considered a security, the Fund may not be afforded the same legal protections afforded
securities under federal securities laws. Thus, the Fund generally must rely on contractual provisions in the loan agreement and common-law
fraud protections under applicable state law.

· *Counterparty risk* **–** Transactions involving a counterparty are subject to the credit risk of the counterparty.
A fund that enters into contracts with counterparties, such as repurchase or reverse repurchase agreements or derivatives contracts, or
that lends its securities, runs the risk that the counterparty will be unable or unwilling to make timely settlement payments or otherwise
honor its obligations. If a counterparty fails to meet its contractual obligations, files for bankruptcy, or otherwise experiences a business
interruption, the Fund could suffer losses, including monetary losses, miss investment opportunities or be forced to hold investments
it would prefer to sell. Counterparty risk is heightened during unusually adverse market conditions.

· *Credit risk* **–** Credit risk is the actual or perceived risk that the issuer of a bond, borrower, guarantor, counterparty,
or other entity responsible for payment will not pay interest and principal payments when due. The price of a debt instrument can decline
in response to changes in the financial condition of the issuer, borrower, guarantor, counterparty, or other entity responsible for payment.
The Fund could lose money if the issuer or guarantor of a fixed-income security, or the counterparty to a derivatives

contract, repurchase agreement or a loan of portfolio securities, is unable or unwilling to make timely principal and/or interest payments, or to otherwise honor its obligations.

· *Derivatives risk* **–** Investments in derivatives, which are financial instruments whose value depends on, or is derived
from, the value of underlying assets, reference rates, or indices, can be highly volatile and may be subject to transaction costs and
certain risks, such as unanticipated changes in securities prices and global currency investment. Derivatives also are subject to leverage
risk, liquidity risk, interest rate risk, market risk, counterparty risk, and credit risk. They also involve the risk of mispricing or
improper valuation and the risk that changes in the value of the derivative may not correlate perfectly with the underlying asset, interest
rate or index. Gains or losses from derivatives can be substantially greater than the derivatives' original cost.

· *Emerging markets and less developed countries risk* **–** Emerging market and less developed countries generally are
located in Asia, the Middle East, Eastern Europe, Central and South America and Africa. Investments in, or exposure to, securities that
are tied economically to emerging market and less developed countries are subject to all of the risks of investments in, or exposure to,
foreign securities, generally to a greater extent than in developed markets, among other risks. Investments in securities that are tied
economically to emerging markets involve greater risk from economic and political systems that typically are less developed, and likely
to be less stable, than those in more advanced countries. The Fund also will be subject to the risk of adverse foreign currency rate fluctuations.
Emerging market and less developed countries may also have economies that are predominantly based on only a few industries or dependent
on revenues from particular commodities. The risks of nationalization, expropriation or other confiscation of assets of non-U.S. issuers
is also greater in emerging and less developed countries. As a result of these risks, investments in securities tied economically to emerging
markets tend to be more volatile than investments in securities of developed countries.

· *Equity securities risk* – Common and preferred stocks represent equity ownership in a company. Stock markets are volatile,
and equity securities generally have greater price volatility than fixed-income securities. The price of equity or equity-related securities
will fluctuate and can decline and reduce the value of a portfolio investing in equity or equity-related securities. The value of equity
or equity-related securities purchased or held by the Fund could decline if the financial condition of the companies the Fund invests
in decline or if overall market and economic conditions deteriorate. They may also decline due to factors that affect a particular industry
or industries, such as labor shortages or an increase in production costs and competitive conditions within an industry. In addition,
they may decline due to general market conditions that are not specifically related to a company or industry, such as real or perceived
adverse economic conditions, changes in the general outlook for corporate earnings, changes in interest or currency rates or generally
adverse investor sentiment.

· *Exchange-traded funds investing risk –* An investment in an ETF generally presents the following risks: (i) the same primary
risks as an investment in a conventional fund (i.e., one that is not exchange-traded) that has the same investment objectives, strategies
and policies; (ii) the risk that an ETF may fail to accurately track the market segment or index that underlies its investment objective;
(iii) price fluctuation, resulting in a loss to the Fund; (iv) the risk that an ETF may trade at a discount to its net asset value; (v)
the risk that an active market for an ETF's shares may not develop or be maintained; and (vi) the risk that an ETF may no longer
meet the listing requirements of any applicable exchanges on which that ETF is listed. When the Fund invests in an ETF, shareholders of
the Fund bear their proportionate share of the ETF's fees and expenses as well as their share of the Fund's fees and expenses.

· *Extension risk* – When interest rates rise, certain obligations will be paid off by the obligor more slowly than anticipated,
which may cause the value of those securities to fall. Rising interest rates tend to extend the duration of securities, making them more
sensitive to changes in interest rates. The value of longer-term securities generally changes more in response to changes in interest
rates than shorter-term securities. As a result, in a period of rising interest rates, securities may exhibit additional volatility and
may lose value.

· *Financial services risk* – An investment in issuers in the financial services sector may be adversely affected by, among
other things: (i) changes in the regulatory framework or interest rates that may negatively affect financial service businesses; (ii)
exposure of a financial institution to a non-diversified or concentrated loan portfolio; (iii) exposure to financial leverage and/or investments
or agreements which, under certain circumstances, may lead to losses (e.g., sub-prime loans); and (iv) the risk that a market shock or
other unexpected market, economic, political, regulatory, public health or other event might lead to a sudden decline in the values of
most or all companies in the financial services sector.

· *Fixed-income risk* **–** The price of fixed-income securities responds to economic developments, particularly interest
rate changes, as well as to perceptions about the credit risk of individual issuers. Rising interest rates generally will cause the price
of bonds and other fixed-income debt securities to fall. Falling interest rates may cause an issuer to redeem, call or refinance a security
before its stated maturity, which may result in the Fund having to reinvest the proceeds in lower yielding securities. Bonds and other
fixed-income debt securities are subject to credit risk, which is the possibility that the credit strength of an issuer will weaken and/or
an issuer of a fixed-income security will fail to make timely payments of principal or interest and the security will go into default.
Debt instruments typically do not provide any voting rights, except in cases when interest payments have not been made and the issuer
is in default.

· *Foreign securities risk* – Investments in, or exposure to, foreign securities involve risks not typically associated with
U.S. investments. These risks include, among others, adverse fluctuations in foreign currency values, possible imposition of foreign withholding
or other taxes on income payable on the securities, as well as adverse political, social and economic developments, such as political
upheaval, acts of terrorism, financial troubles, sanctions or the threat of new or modified sanctions, or natural disasters. Many foreign
securities markets, especially those in emerging market countries, are less stable, smaller, less liquid, and

less regulated than U.S. securities markets, and the costs of trading in those markets is often higher than in U.S. securities markets. There may also be less publicly available information about issuers of foreign securities compared to issuers of U.S. securities. In addition, the economies of certain foreign markets may not compare favorably with the economy of the United States with respect to issues such as growth of gross national product, reinvestment of capital, resources and balance of payments position.

· *Forward foreign currency exchange contracts risk –* Forward foreign currency exchange contracts do not eliminate fluctuations
in the value of non-U.S. securities but rather allow the Fund to establish a fixed rate of exchange for a future point in time. This strategy
can have the effect of reducing returns and minimizing opportunities for gain.

· *High-yield bonds, lower-rated bonds, and unrated securities risk* – High-yield bonds, lower-rated bonds, and unrated securities
are broadly referred to as "junk bonds," and are considered below "investment-grade" by national ratings agencies.
Junk bonds are subject to the increased risk of an issuer's inability to meet principal and interest payment obligations. As a result,
an investment in junk bonds is considered speculative. High-yield bonds may be subject to liquidity risk, and the Fund may not be able
to sell a high-yield bond at the price at which it is currently valued.

· *Index investing risk –* The Fund's indexing strategy does not attempt to manage volatility, use defensive strategies,
or reduce the effects of any long-term periods of poor stock performance. Should the Fund engage in index sampling, the performance of
the securities selected will not provide investment performance tracking that of the Index. Fund performance may not exactly correspond
with the performance of the relevant index for a number of reasons, including, but not limited to: the timing of purchases and redemptions
of the Fund's shares, changes in the composition of the index, and the Fund's expenses. Certain regulatory limitations, such
as fund diversification requirements, may limit the ability of the Fund to completely replicate an index.

· *Indexed and inverse securities risk –* Certain indexed and inverse securities have greater sensitivity to changes in interest
rates or index levels than other securities, and the Fund's investment in such instruments may decline significantly in value if
interest rates or index levels move in a way the Fund's investment manager does not anticipate.

· *Interest rate risk* **–** When interest rates increase, fixed-income securities generally will decline in value. Long-term
fixed income securities normally have more price volatility than short-term fixed income securities. The value of certain equity investments,
such as utilities and real estate-related securities, may also be sensitive to interest rate changes.

· *Investment in other investment companies risk –* As with other investments, investments in other investment companies,
including exchange-traded funds, are subject to market risk. In addition, if the Fund acquires shares of investment companies, including
ones affiliated with the Fund, shareholders bear both their proportionate share of expenses in the Fund (including management and advisory
fees) and, indirectly, the expenses of the investment companies in which the Fund invests. To the extent that shares of the Fund are held
by an affiliated fund, the ability of the Fund itself to invest in other investment companies may be limited.

· *Leverage risk* **–** Certain derivative transactions involve the use of leverage and may cause the Fund to liquidate
portfolio positions at disadvantageous times to satisfy its obligations. The effect of using leverage is to amplify the Fund's gains
and losses in comparison to the amount of the Fund's assets (that is, assets other than borrowed assets) at risk, which may cause
the Fund's portfolio to be more volatile. If the Fund uses leverage, the Fund has the risk of capital losses that exceed the net
assets of the Fund.

· *Liquidity risk* – Investments in securities that are difficult to purchase or sell (illiquid or thinly-traded securities)
may reduce returns if the Fund is unable to sell the securities at an advantageous time or price or achieve its desired level of exposure
to a certain sector. Liquidity risk arises, for example, from small average trading volumes, trading restrictions, or temporary suspensions
of trading. To meet redemption requests, the Fund may be forced to sell securities at an unfavorable time and/or under unfavorable conditions.

· *Managed portfolio risk* – As an actively managed portfolio, the Fund's portfolio manager(s) make decisions to buy and
sell holdings in the Fund's portfolio. Because of this, the value of the Fund's investments could decline because the financial
condition of an issuer may change (due to such factors as management performance, reduced demand or overall market changes), financial
markets may fluctuate or overall prices may decline, the Sub-Adviser's investment techniques could fail to achieve the Fund's investment
objective or negatively affect the Fund's investment performance, or legislative, regulatory, or tax developments may affect the
investment techniques available to the Sub-Adviser of the Fund. There is no guarantee that the investment objective of the Fund will be
achieved.

· *Market risk* – Portfolio securities may decline in value due to factors affecting securities markets generally, such as
real or perceived adverse economic, political, or regulatory conditions, inflation, changes in interest or currency rates or adverse investor
sentiment, public health issues, including widespread disease and virus epidemics or pandemics, war, terrorism or natural disasters, among
others. Adverse market conditions may be prolonged and may not have the same impact on all types of securities. The values of securities
may fall due to factors affecting a particular issuer, industry or the securities market as a whole.

· *Mortgage-related and other asset-backed securities risk* **–** Rising interest rates tend to extend the duration of
mortgage-related and other asset-backed securities, making them more sensitive to changes in interest rates and exhibit increased volatility.
When interest rates decline, borrowers may pay off their mortgages or other loans sooner than expected, which can reduce the returns.

· *Municipal securities risk* – Municipal securities are subject to certain additional risks. A Fund may be more sensitive
to adverse economic, business or political developments if it invests a substantial portion of its assets in the debt securities of projects
in the same or similar sectors (e.g., education, health care, housing, transportation, and utilities), industrial development bonds, or
in particular types of municipal securities (e.g., general obligation bonds, private activity bonds and moral obligation bonds). Other
occurrences, such as catastrophic natural disasters or acts of terrorism, can also adversely affect a state's fiscal stability and
affect the value of a Fund's investment in municipal securities. The recent national economic crisis, among other factors, has caused
deterioration in the economies of many states, resulting in an adverse impact on states' spending, revenues and state budgets that
has caused many states to operate under significant financial stress. Certain states or municipalities may file for, and enter bankruptcy
proceedings. Legal and regulatory requirements related to state and municipal bankruptcy are evolving, which could affect the value of
a Fund's investment in municipal securities.

· *Prepayment risk* **–** During periods of falling interest rates, a debt security with a high interest rate may be prepaid
before its expected maturity date. The Fund may have to reinvest the proceeds in an investment that may have lower yields than the yield
on the prepaid debt security. In addition, prepayment rates are difficult to predict and the potential impact of prepayment on the price
of a debt instrument depends on the terms of the instrument.

· *Real estate investment risk* **–** Risks of investing in real estate securities include falling property values due
to increasing vacancies in rental properties, declining rents resulting from economic, legal, tax, cultural, political or technological
developments, lack of liquidity, limited diversification, and sensitivity to certain economic factors such as interest-rate changes and
other market conditions. When growth is slowing, demand for property decreases and prices may decline, which could impact the value of
real estate investments as well as mortgage-backed securities that may be held by the Fund. Real estate company share prices may drop
because of the failure of borrowers to pay their loans and poor management, and residential developers, in particular, could be negatively
impacted by falling home prices, slower mortgage origination and rising construction costs. The securities of smaller real estate-related
issuers can be more volatile and less liquid than securities of larger issuers and their issuers can have more limited financial resources.

· *REIT investment risk* **–** The risks of investing in REITs include certain risks associated with the direct ownership
of real estate and the real estate industry in general. These include risks related to general, regional and local economic conditions;
difficulties in valuing and disposing of real estate; fluctuations in interest rates and property tax rates; shifts in zoning laws; environmental
regulations and other governmental action; cash flow dependency; increased operating expenses; lack of availability of mortgage funds;
losses due to natural disasters; overbuilding; losses due to casualty or condemnation; changes in property values and rental rates; the
management skill and creditworthiness of the REIT manager; and other factors. REITs may have limited financial resources, may trade less
frequently and in limited volume, may engage in dilutive offerings of securities and may be more volatile than other securities. REITs
could be adversely affected by failure to maintain their exemptions from registration under the Investment Company Act of 1940, as amended,
or failure to qualify for the "dividends paid deduction" under the Internal Revenue Code of 1986, as amended, which allows
REITs to reduce their corporate taxable income for dividends paid to their shareholders.

· *Sector risk* – Companies with similar characteristics may be grouped together in broad categories called sectors. Sector
risk is the risk that securities of companies within specific sectors of the economy can perform differently than the overall market.
For example, this may be due to changes in the regulatory or competitive environment or changes in investor perceptions regarding a sector.
Because the Fund may allocate relatively more assets to certain sectors than others, the Fund's performance may be more susceptible
to any developments which affect those sectors emphasized by the Fund. In addition, the Fund could underperform other funds investing
in similar sectors or comparable benchmarks because of the investment manager's choice of securities within such sector.

· *Settlement risk* **–** Settlement risk is the risk that a settlement in a transfer system does not take place as expected.
Loan transactions often settle on a delayed basis compared with securities and the Fund may not receive proceeds from the sale of a loan
for a substantial period after the sale, potentially impacting the ability of the Fund to make additional investments or meet redemption
obligations. It may take longer than seven days for transactions in loans to settle. In order to meet short-term liquidity needs, the
Fund may draw on its cash or other short-term positions, maintain short-term or other liquid assets sufficient to meet reasonably anticipated
redemptions, or maintain a credit facility.

· *Short sales risk* **–** A short sale may be effected by selling a security that the Fund does not own. If the price
of the security sold short increases, the Fund would incur a loss; conversely, if the price declines, the Fund will realize a gain. The
Fund may take a short position in securities or in a derivative instrument, such as a future, forward or swap. Short sales involve greater
reliance on the investment manager's ability to accurately anticipate the future value of an instrument, potentially higher transaction
and other costs (that will reduce potential Fund gains and increase potential Fund losses), and imperfect correlation between the actual
and desired level of exposure. Because the Fund's potential loss on a short position arises from increases in the value of the asset
sold short, the extent of such loss, like the price of the asset sold short, is theoretically unlimited. By investing the proceeds received
from selling securities short, the Fund could be deemed to be employing a form of leverage, which creates special risks. The Fund's
long positions could decline in value at the same time that the value of the short positions increase, thereby increasing the Fund's
overall potential for loss to a greater extent than would occur without the use of leverage. Short positions typically involve increased
liquidity risk and transaction costs, and the risk that the third party to the short sale may fail to honor its contract terms.

· *Structured investments risk –* A structured investment is a derivative security designed to offer a return linked to a
particular underlying security, currency, commodity or market. Structured investments may come in various forms including notes (such
as

exchange-traded notes), warrants and options to purchase securities. A Fund will typically use structured investments to gain exposure to a particular underlying security, currency, commodity or market when direct access to the security, currency, commodity, or market is limited or inefficient from a tax or cost standpoint. There can be no assurance that structured investments will trade at the same price or have the same value as the underlying security, currency, commodity or market. Investments in structured investments involve risks including, but not limited to, issuer risk, counterparty risk and market risk. Holders of structured investments bear risks of the underlying investment and are subject to issuer or counterparty risk because a Fund is relying on the creditworthiness of such issuer or counterparty and has no rights with respect to the underlying investment. Certain structured investments may be thinly traded or have a limited trading market and may have the effect of increasing a Fund's illiquidity to the extent that a Fund, at a particular point in time, may be unable to find qualified buyers for these securities.

· *U.S. Government securities risk* – Obligations issued by agencies and instrumentalities of the U.S. Government vary in
the level of support they receive from the U.S. Government. They may be: (i) supported by the full faith and credit of the U.S. Treasury;
(ii) supported by the right of the issuer to borrow from the U.S. Treasury; (iii) supported by the discretionary authority of the U.S.
Government to purchase the issuer's obligations; or (iv) supported only by the credit of the issuer. The maximum potential liability
of the issuers of some U.S. Government securities may greatly exceed their current resources, or their legal right to receive support
from the U.S. Treasury.

· *Volatility risk –* The Fund may have investments that appreciate or depreciate significantly in value over short periods
of time. This may cause the Fund's net asset value per share to experience significant appreciations or depreciations in value over
short periods of time.

<br> **Performance.** The performance information shown provides some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns compared with those of a broad-based securities market index. Performance results include the effect of expense waiver/reduction arrangements for some or all of the periods shown. If such arrangements had not been in place, performance for those periods would have been lower. The Fund's past performance is not necessarily an indication of how the Fund will perform in the future.

The returns shown in the bar chart and table do not include charges that will be imposed by variable insurance products. If these amounts were reflected, returns would be less than those shown.

**Annual Total Returns as of December 31**

**Class A**

![PerformanceBarChartData(2016:18.9, 2017:21.51, 2018:-4.51, 2019:33.66, 2020:15.18, 2021:24.01, 2022:-23.7, 2023:27.42, 2024:13.06, 2025:8.98)](image_001.jpg)

**Best Quarter (ended 6/30/2020):** 25.40%; **Worst Quarter (ended 3/31/2020):** -28.37%

**Annual Total Returns as of December 31**

**Class I**

![PerformanceBarChartData(2018:-4.23, 2019:34.08, 2020:15.53, 2021:24.39, 2022:-23.49, 2023:27.81, 2024:13.44, 2025:9.29)](image_002.jpg)

**Best Quarter (ended 6/30/2020):** 25.50%; **Worst Quarter (ended 3/31/2020):** -28.30%

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| | | | |
|:---|:---|:---|:---|
| **Average Annual Total Returns as of 12/31/2025** | | | |
| | **1 year** | **5 year** | **10 year** |
| JNL/DoubleLine® Shiller Enhanced CAPE® Fund (Class A) | 8.98% | 8.23% | 12.17% |
| S&P 500 Index (reflects no deduction for fees, expenses, or taxes) | 17.88% | 14.42% | 14.82% |

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| | | | |
|:---|:---|:---|:---|
| **Average Annual Total Returns as of 12/31/2025** | | | |
| | **1 year** | **5 year** | **Life of Class (September 25, 2017)** |
| JNL/DoubleLine® Shiller Enhanced CAPE® Fund (Class I) | 9.29% | 8.56% | 11.04% |
| S&P 500 Index (reflects no deduction for fees, expenses, or taxes) | 17.88% | 14.42% | 14.82% |

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**Portfolio Management.**

**Investment Adviser to the Fund:**<br> Jackson National Asset Management, LLC ("JNAM")

**Sub-Adviser:** <br> DoubleLine Capital LP ("DoubleLine")

**Portfolio Managers:**

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| | | |
|:---|:---|:---|
| **Name:** | **Joined Fund Management Team In:** | **Title:** |
| Jeffrey E. Gundlach | September 2015 | Chief Executive Officer and Chief Investment Officer, DoubleLine |
| Jeffrey J. Sherman | September 2015 | Deputy Chief Investment Officer, DoubleLine |

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**Purchase and Redemption of Fund Shares** 

Only separate accounts of Jackson National Life Insurance Company ("Jackson National") or Jackson National Life Insurance Company of New York ("Jackson National NY") and series, including fund of funds, of registered investment companies in which either or both of those insurance companies invest may purchase shares of the Fund. You may invest indirectly in the Fund through your purchase of a variable annuity or life insurance contract issued by a separate account of Jackson National or Jackson National NY that invests directly, or through a fund of funds, in this Fund. Any minimum initial or subsequent investment requirements and redemption procedures are governed by the applicable separate account through which you invest indirectly.

This Fund serves as an underlying investment by insurance companies, affiliated investment companies, and retirement plans for funding variable annuity and life insurance contracts and retirement plans.

**Tax Information**

The Fund expects to be treated as a partnership for U.S. federal income tax purposes, and does not expect to make regular distributions (other than in redemption of Fund shares) to shareholders, which generally are the participating insurance companies investing in the Fund through separate accounts of Jackson National or Jackson National NY and mutual funds owned directly or indirectly by such separate accounts. You should consult the prospectus of the appropriate separate account or description of the plan for a discussion of the U.S. federal income tax consequences to you of your contract, policy, or plan.

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

If you invest in the Fund under a variable insurance contract or a plan that offers a variable insurance contract as a plan option through a broker-dealer or other financial intermediary (such as a financial institution), 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.