Summary Prospectus by Investment Company (Form 497K)

AZL® Balanced Index Strategy Fund

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, Statement of Additional Information ("SAI") and other information about the Fund online at www.allianzlife.com/azlfunds. You can also get this information at no cost by calling 1-800-624-0197 or by sending an email request to [email protected]. The Fund's Prospectus and SAI, both dated May 1, 2026, as supplemented, are incorporated by reference into this Summary Prospectus.

 Investment Objective

The Fund seeks long-term capital appreciation with preservation of capital as an important consideration.

 Fees and Expenses

Fees and Expenses of the Fund

The following table describes the fees and expenses that you may pay if you buy and hold shares of the Fund. The Fund is offered exclusively as an investment option for certain Contracts. The table below reflects only Fund expenses and does not reflect Contract fees and expenses. If Contract fees and expenses were included, the fees and expenses in the following table would be higher. Please refer to the Contract prospectus for a description of those fees and expenses.

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

Management Fee	0.05%
Other Expenses	0.05%
Acquired Fund Fees and Expenses(1)	0.61%
Total Annual Fund Operating Expenses	0.71%

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. The example assumes that you invest $10,000 in the Fund for the time periods indicated. The example also assumes that your investment has a 5% return each year, that the Fund's operating expenses remain the same, and that you reinvest all dividends and distributions. It does not reflect any Contract fees. If Contract fees were included, the costs shown would be higher. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 

1 Year	3 Years	5 Years	10 Years
$73	$227	$395	$883

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 12% of the average value of its portfolio.

 Investments, Risks, and Performance

Principal Investment Strategies of the Fund

The Fund is a fund of funds that, under normal market conditions, seeks to achieve its investment objective by investing primarily in a combination of five underlying index funds: 

Fund	Target Allocation
AZL Enhanced Bond Index Fund	50 %
AZL S&P 500 Index Fund	31 %
AZL International Index Fund	14 %
AZL Mid Cap Index Fund	3 %
AZL Small Cap Stock Index Fund	2 %

The AZL Enhanced Bond Index Fund is a bond index fund, subadvised by BlackRock Financial Management, Inc.; the other four underlying funds are equity index funds, subadvised by BlackRock Investment Management, LLC. Under normal market conditions, the Fund will allocate approximately 50% of its assets in the underlying equity index funds and approximately 50% of its assets in the underlying bond index fund. These target allocations represent the Fund's long-term strategic asset allocation, which is not expected to change under normal market conditions.

The investment results of the underlying funds will vary. As a result, the Manager monitors the actual allocations to the underlying funds daily and periodically adjusts the actual allocations to attempt to achieve the target allocation. Generally, the Manager will seek to maintain the actual fund allocations to target using the cash flows that result from contract holders buying or selling shares in the Fund. However, if cash flows were insufficient to maintain the target allocations, the Manager would then buy or sell underlying funds as necessary to attempt to return the Fund's actual asset allocations to the targets. Generally, the actual allocations will not be more than 10% above or below the targets.

The AZL Enhanced Bond Index Fund under normal circumstances invests in a combination of securities with an overall weighting close to the capitalization weights of the Bloomberg U.S. Aggregate Bond Index (the "Index"). Under normal market conditions, the Fund invests at least 80% of its net assets in investment-grade debt securities (those of medium and high quality) of all types and repurchase agreements for those securities. Further, under normal circumstances, the Fund invests at least 80% of the value of its net assets in securities or other financial instruments that are components of or have economic characteristics similar to the securities included in the Index. The subadviser of the AZL Enhanced Bond Index Fund uses the Index as a guide in structuring the Fund and selecting its investments and manages the Fund to have similar overall interest rate risk to the Index, with the investment objective of seeking to exceed the total return of the Index.

The AZL S&P 500 Index Fund under normal circumstances invests at least 80% of the value of its net assets in the securities of or in a statistically selected sampling of the securities of companies included in the S&P 500® Index or in derivative instruments linked to that Index.

The AZL Mid Cap Index Fund under normal circumstances invests at least 80% of the value of its net assets in a statistically selected sampling of equity securities of companies included in the S&P MidCap 400 Index and in derivative instruments linked to the S&P MidCap 400 Index, primarily futures contracts.

The AZL Small Cap Stock Index Fund under normal market conditions invests at least 80% of its assets, plus any borrowings for investment purposes, in investments of small-capitalization companies, which for this purpose are companies with market capitalizations (the total market value of a company's outstanding stock) at the time of purchase included in the S&P SmallCap 600 Index.

The AZL International Index Fund under normal circumstances invests at least 80% of the value of its net assets in a statistically selected sampling of equity securities of companies included in the MSCI EAFE Index and in derivative instruments linked to the MSCI EAFE Index, primarily futures contracts.

Principal Risks of Investing in the Fund

The price per share of the Fund will fluctuate with changes in the value of the investments held by the Fund. You may lose money by investing in the Fund. An investment in the Fund is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. There is no guarantee that the Fund will achieve its objective.

The following is a summary of the principal risks to which the Fund's portfolio as a whole is subject, any of which may adversely affect the Fund's net asset value (NAV), yield, total return and ability to achieve its investment objective. As changes occur in a Fund's portfolio holdings, the extent to which the portfolio is subject to each of these risks may also change.

Allocation Risk - The Manager's decisions regarding how the Fund's assets should be allocated among the various underlying funds, may cause the Fund to underperform other funds with similar investment objectives. There can be no guarantee that investment decisions made by the Manager will produce the desired results. Further, because the Manager has limited discretion to change the underlying fund allocations under normal market conditions, the Fund may underperform comparable funds of funds for which the fund's manager has such discretion to adjust allocations to underlying funds.

Fund of Funds Risk - The Fund, as a shareholder of the underlying funds, indirectly bears its proportionate share of any investment management fees and other expenses of the underlying funds. Further, due to the fees and expenses paid by the Fund, as well as small variations in the Fund's actual allocations to the underlying funds and any cash held in the Fund's portfolio, the performance and income distributions of the Fund will not be the same as the performance and income distributions of the underlying funds allocated according to the target allocations described here.

In addition, the Fund bears the investment risks of the investments of the underlying funds. The principal risks associated with the underlying funds include:

Market Risk - The market value of portfolio securities may go up or down, sometimes rapidly and unpredictably. The value of a security or other asset may fluctuate significantly due to factors such as changes in general market conditions, including economic, political, and financial conditions, widespread disease or other public health issues, war, military conflict, acts of terrorism, adverse investor sentiment, or instability or other disruptive events in the local, regional or global markets. Certain changes in the U.S. economy, such as a decrease in imports or exports, changes in trade regulations, inflation and/or economic recession, may have an adverse effect on the value of the Fund's securities.

Issuer Risk - The value of a security may decline for a number of reasons directly related to the issuer of the security. Further, the value of an individual security or particular type of security can be more volatile than, and can perform differently from, the market as a whole.

Index Fund Risk - Certain of the underlying funds do not attempt to manage market volatility or reduce the effects of poor performance. In addition, factors such as fund expenses, selection of a representative portfolio, changes in the composition of the index, or the timing of purchases or redemptions of fund shares may affect the correlation between the performance of the index and the fund's performance.

Selection Risk - Because the AZL Enhanced Bond Index Fund is actively managed, there can be no guarantee that investment decisions made for the Fund will produce the desired results.

Capitalization Risk - Investing in small- to mid-sized companies creates risk because smaller companies may have unpredictable or limited earnings, and their securities may be less liquid or experience more volatile prices than those of large companies.

Foreign Securities Risk - Investing in the securities of non-U.S. issuers involves a number of risks, such as fluctuations in currency values, adverse political, social or economic developments, and differences in social and economic developments or policies.

Risks of Investing in Japan - Japan may be subject to political, economic, nuclear, and labor risks, among others. Any of these risks, individually or in the aggregate, can impact an investment made in Japan. Since 2000, Japan's economic growth rate has generally remained low relative to other advanced economies, and it may remain low in the future. The Japanese economy faces several concerns, any of which could negatively affect the value of Japanese investments. In addition, Japan's labor market is adapting to an aging workforce, declining population, and demand for increased labor mobility. These demographic shifts and fundamental structural changes to the labor market may negatively impact Japan's economic competitiveness.

European Investment Risk - Investments in certain countries in the European Union (the "EU") are susceptible to high political, social, or economic risks due to restrictions on inflation rates, rising debt levels and fiscal and monetary controls. Efforts of the member countries to further unify their economic and monetary policies may increase the potential for the downward movement of one member country's market to cause a similar effect on other member countries' markets.

Separately, the EU faces issues involving its membership, structure, procedures and policies. The exit of one or more member countries from the EU, such as the exit of the United Kingdom (known as "Brexit"), could place its currency and banking system in jeopardy. An exit by other member countries could likely result in increased volatility, illiquidity and potentially lower economic growth in the affected markets, which may adversely affect a fund's investments.

Financials Sector Risk - The performance of companies in the financials sector may be adversely impacted by many factors, including, among others, changes in government regulations, economic conditions, increases in interest rates and loan losses, decreases in the availability of money or asset valuations, credit rating downgrades, decreased liquidity in credit markets and adverse conditions in other related markets. Companies in the financials sector may also hold portfolios of assets concentrated in geographic markets, industries or products (such as commercial and residential real estate loans) which makes them especially vulnerable to unstable economic conditions. The extent to which a fund may invest in a company that engages in securities-related activities or banking is limited by applicable law. The impact of changes in capital requirements and recent or future regulation of any individual financial company, or of the financials sector as a whole, cannot be predicted. Cyberattacks and technology malfunctions and failures have become increasingly frequent in this sector and have caused significant losses to companies in this sector, which may negatively impact a fund.

When-Issued, Delayed Delivery Securities and Forward Commitments Risk - The purchase or sale of securities on a when issued basis or on a delayed delivery basis or through a forward commitment involves the purchase or sale of securities at an established price with payment and delivery taking place in the future. When-issued and delayed delivery transactions subject a fund to market risk because the value or yield of a security at delivery may be more or less than the purchase price or yield generally available when delivery occurs, and counterparty risk because the fund relies on the buyer or seller, as the case may be, to consummate the transaction. These transactions also have a leveraging effect on a fund because the fund commits to purchase securities that it does not have to pay for until a later date, which increases the fund's overall investment exposure and, as a result, its volatility.

Emerging Markets Risk - Emerging markets may have less developed or more volatile trading markets and greater likelihood of government restrictions, nationalization, or confiscation than developed countries. Companies in emerging market countries may have less developed legal and accounting systems and generally may be subject to less stringent regulatory, disclosure, financial reporting, accounting, auditing and recordkeeping standards than companies in more developed countries. As a result, information, including financial information, about such companies may be less available and reliable which can impede a fund's ability to evaluate such companies. Securities law and the enforcement of systems of taxation in many emerging market countries may change quickly and unpredictably, and the ability to bring and enforce actions, or to obtain information needed to pursue or enforce such actions, may be limited. In addition, investments in emerging markets securities may be subject to additional transaction costs, delays in settlement procedures, unexpected market closures, and lack of timely information. Frontier market countries generally have smaller economies or less developed capital markets and, as a result, the risks of investing in emerging market countries are magnified in frontier market countries.

Currency Risk - Investing in securities that trade in and receive revenues in foreign currencies creates risk because foreign currencies may decline relative to the U.S. dollar, resulting in a potential loss to a fund. In the case of hedging positions, the U.S. dollar may decline in value relative to the currency that has been hedged.

Sovereign Debt Risk - Sovereign debt instruments are subject to the risk that a governmental entity may delay or refuse to pay interest or repay principal on its sovereign debt, due, for example, to cash flow problems, insufficient foreign currency reserves, political considerations, the relative size of the governmental entity's debt position in relation to the economy or the failure to put in place economic reforms required by the International Monetary Fund or other multilateral agencies.

Treasury Obligations Risk - Direct obligations of the U.S. Treasury have historically involved little risk of loss of principal if held to maturity. However, due to fluctuations in interest rates, the market value of such securities may vary during the period shareholders own shares of a fund. Because U.S. Treasury obligations trade actively outside the United States, their prices may rise and fall as changes in global economic conditions affect the demand for these securities. In addition, changes in the credit rating or financial condition of the U.S. government may cause the value of U.S. Treasury Obligations to decline. Although a fund may hold securities that carry U.S. government guarantees, these guarantees do not extend to shares of the fund.

U.S. Government Obligations Risk - Certain securities in which a fund may invest, including securities issued by certain government agencies and government sponsored enterprises, are not guaranteed by the U.S. Government or supported by the full faith and credit of the United States. It is possible that issuers of U.S. government securities will not have the funds

to meet their payment obligations in the future. No assurance can be given that the U.S. government will provide financial support to its agencies and authorities if it is not obligated by law to do so.

Financial Markets Regulatory Risk - Policy changes by the U.S. government or its regulatory agencies and other governmental actions and political events within the U.S. and abroad may, among other things, affect investor and consumer confidence and increase volatility in the financial markets, perhaps suddenly and to a significant degree, which may adversely impact a fund, including by adversely impacting the fund's operations, universe of potential investment options, and return potential.

Interest Rate Risk - Debt securities held by a fund may decline in value due to rising interest rates. Macroeconomic factors, such as inflationary trends, can heighten interest rate risk.

Credit Risk - The failure of the issuer of a debt security to pay interest or repay principal in a timely manner may have an adverse impact on a fund's earnings.

Income Risk - Income risk is the risk that the Fund's yield will vary as short-term securities in its portfolio mature and the proceeds are reinvested in securities with different interest rates. Falling interest rates may cause a fund's income to decline.

Call Risk - If interest rates fall, issuers of callable debt securities are more likely to prepay prior to the maturity date. A fund may not be able to reinvest the proceeds from the prepayment in investments that will generate the same level of income.

Extension Risk - If interest rates rise, debt securities may be paid in full more slowly than anticipated. Periods of low relative interest rates or inflationary trends may increase the risks associated with rising interest rates.

Derivatives Risk - Investing in derivative instruments involves risks that may be different from or greater than the risks associated with investing directly in securities or other traditional investments. Derivatives are subject to a number of other risks, such as liquidity risk, interest rate risk, market risk, credit risk, counterparty risk, and selection risk. Derivatives also involve the risk of mispricing or improper valuation and the risk that changes in the value may not correlate perfectly with the underlying asset, rate, or index. Using derivatives may result in losses, possibly in excess of the principal amount invested.

Futures Risk - The value of futures contracts depend primarily upon the price of the securities, indexes, commodities, currencies or other instruments underlying them. Price movements are also influenced by, among other things, interest rates, changing supply and demand relationships, trade, fiscal, monetary, and exchange control programs and policies of governments, and national and international political and economic events and policies. The cost of futures may also be related, in part, to the degree of volatility of the underlying indices, securities, currencies, or other assets. Accordingly, futures on highly volatile indices, securities, currency, or other assets may be more expensive than futures on other investments. Changes in the value of the derivative may not correlate perfectly with the underlying asset, rate or index, and a fund could lose more than the principal amount invested.

Swaps Risk - A swap is a two-party contract that generally obligates each counterparty to exchange periodic payments based on a pre-determined underlying investment or notional amount and to exchange collateral to secure the obligations of each counterparty. Swaps may be leveraged and are subject to counterparty risk, credit risk and pricing risk. Swaps may be subject to illiquidity risk, and it may not be possible for the fund to liquidate a swap position at an advantageous time or price, which may result in significant losses.

Leveraging Risk - Certain underlying funds may engage in certain kinds of transactions, including the use of derivatives, that may give rise to a form of leverage. The use of leverage may require a fund to liquidate a portfolio position at a disadvantageous time or may exaggerate the effect of any increase or decrease in the value of a fund's portfolio securities.

Liquidity Risk - An investment that is difficult to purchase or sell may have an adverse effect on the fund's returns. Liquid securities can become illiquid during periods of market stress. If a significant amount of the fund's securities become illiquid, the fund may not be able to timely pay redemption proceeds and may need to sell securities at significantly reduced prices.

Mortgage-Related and Other Asset-Backed Securities Risk - Investing in mortgage-related or other asset-backed securities involves a variety of risks associated with the credit markets, such as rising or falling interest rates, increases in the rate of defaults or prepayments, and the quality of the pool of mortgages (subprime risk) or other assets that back the security.

Portfolio Turnover Risk - Certain underlying funds may trade portfolio securities frequently, which could result in higher transaction costs and could adversely affect the fund's performance.

Privately Placed, Rule 144A and Other Exempt Securities Risk - Certain underlying funds may invest in privately placed securities, which are subject to resale restrictions. The market for Rule 144A and other securities exempt from certain registration requirements may be less active than the market for publicly-traded securities. Rule 144A and other exempt securities carry the risk that their liquidity may become impaired and a fund may be unable to dispose of the securities at a desirable time or price.

Repurchase Agreements and Purchase and Sale Contracts Risk - If the other party to a repurchase agreement or purchase and sale contract defaults on its obligation under the agreement, a fund may suffer delays and incur costs or lose money in exercising its rights under the agreement. If the seller fails to repurchase the security in either situation and the market value of the security declines, the fund may lose money.

Information Technology Sector Risk - Information technology companies may have limited product lines, markets, financial resources or personnel. Information technology companies typically face intense competition and potentially rapid product obsolescence. They are also heavily dependent on intellectual property rights and may be adversely affected by the loss or impairment of those rights.

Collateralized Debt Obligations Risk - In addition to the typical risks associated with fixed-income securities and asset-backed securities, collateralized debt obligations, including CLOs, carry additional risks including, but not limited to: (i) the possibility that distributions from collateral securities will not be adequate to make interest or other payments; (ii) the risk that the collateral may default or decline in value or be downgraded, if rated by a nationally recognized statistical rating organization; (iii) a fund may invest in tranches of CDOs that are subordinate to other tranches; (iv) the structure and complexity of the transaction and the legal documents could lead to disputes among investors regarding the characterization of proceeds; (v) the investment return achieved by a fund could be significantly different than those predicted by financial models; (vi) the lack of a readily available secondary market for CDOs; (vii) the risk of forced "fire sale" liquidation due to technical defaults such as coverage test failures; and (viii) the CDO's manager may perform poorly.

Non-Diversification Risk - To the extent an underlying fund becomes non-diversified, the underlying fund may invest a larger percentage of its assets in securities issued by or representing a small number of issuers than can a diversified fund. As a result, the underlying fund's shares may experience greater price volatility and the underlying fund may be more susceptible to the risks associated with these particular issuers or to a single economic, political or regulatory occurrence affecting these issuers, which may negatively impact the underlying fund's performance.

Performance Information

The following bar chart and table provide an indication of the risks of an investment in the Fund by showing changes in its performance from year to year and by showing how the Fund's average annual returns for one year, five years and ten years compare with those of a broad-based measure of market performance, the S&P 500 Index. The Fund's performance also is compared to the Bloomberg U.S. Aggregate Bond Index, which shows how the Fund's performance compares with the returns of a broad index of investment-grade fixed-rate debt issues, and to the Balanced Composite Index, which shows how the Fund's performance compares with a composite index composed of the S&P 500 Index (50%) and the Bloomberg U.S. Aggregate Bond Index (50%) in proportions similar to the equity to fixed income allocation of the Fund.

Both the bar chart and the table assume reinvestment of dividends and distributions.

The performance of the Fund will vary from year to year. The Fund's performance does not reflect the cost of insurance and separate account charges which are imposed under your Contract. If they were included, performance would be reduced. Past performance does not indicate how the Fund will perform in the future.

Performance Bar Chart and Table

Calendar Year Total Return  

Highest and Lowest Quarter Returns (for periods shown in the bar chart) 

Highest (Q2, 2020)	11.79%
Lowest (Q1, 2020)	-10.87%

Average Annual Total Returns 

	One Year Ended December 31, 2025	Five Years Ended December 31, 2025	Ten Years Ended December 31, 2025
AZL Balanced Index Strategy Fund	13.34 %	5.37 %	6.88 %
S&P 500® Index*	17.88 %	14.42 %	14.82 %
Bloomberg U.S. Aggregate Bond Index*	7.30 %	-0.36 %	2.01 %
Balanced Composite Index*	12.71 %	7.01 %	8.57 %

 Management

Allianz Investment Management LLC (the "Manager") serves as the investment adviser to the Fund.

The Fund's portfolio managers are: Brian Muench, CFA, president of the Manager and portfolio manager, since November 2010 and Brian Mong, CFA, portfolio manager, since April 2020.

 Tax Information

Shares of the Funds are sold exclusively to the separate accounts of certain insurance companies in connection with particular variable annuity and variable life insurance contracts (each, a "Contract" and collectively, the "Contracts"). Provided that a Fund and a separate account investing in the Fund satisfy applicable tax requirements, any distributions from the Fund to the separate account will be exempt from current federal income taxation to the extent that such distributions accumulate in the Contract. You should refer to your Contract prospectus for further information regarding the tax treatment of the Contract and the separate accounts in which the Contract is invested.

 Financial Intermediary Compensation

Shares of the Funds are sold exclusively to certain insurance companies in connection with particular Contracts. The Trust and its related companies may pay such insurance companies (or their related companies) for the sale of shares of the Funds and related services. Such insurance companies (or their related companies) may pay broker-dealers or other financial intermediaries (such as banks) that sell the Contracts for the sale of shares of the Funds and related services. When received by an insurance company, such payments may be a factor that the insurance companies consider in including a Fund as an investment option in the Contracts. The prospectus or other disclosures relating to a Contract may contain additional

information about these payments. When received by a broker-dealer or other intermediary, such payments may create a conflict of interest by influencing the broker-dealer or other intermediary and salespersons to recommend the Fund over other mutual funds available as investment options in the Contracts. Ask the salesperson or visit the financial intermediary's website for more information.