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0.2167 -0.0979 -0.1868 0.2513 0.1279 0.2037 0.2072 Calendar Year End (%) During the period shown in the bar chart, the Fund’s:Best Quarter was up 19.01%, 2nd quarter, 2020; and Worst Quarter was down -22.35%, 1st quarter, 2020. 0.0837 0.1104 0.0579 0.1295 -0.1976 0.1523 -0.0782 0.0483 0.1122 0.1937 Calendar Year End (%) During the period shown in the bar chart, the Fund’s: Best Quarter was up 10.92%, 2nd quarter, 2020; and Worst Quarter was down -17.98%, 1st quarter, 2020. 0.2027 0.2026 -0.1886 0.1236 -0.0989 0.2120 0.2522 0.1836 0.2278 0.0488 Calendar Year End (%) During the period shown in the bar chart, the Fund’s: Best Quarter was up 18.91%, 2nd quarter, 2020; and Worst Quarter was down -22.47%, 1st quarter, 2020. N-1A AB PORTFOLIOS 2026-10-30 SUMMARY INFORMATION GROWTH FUNDS AB Growth Fund INVESTMENT OBJECTIVE <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s investment objective is long-term growth of capital.</div> FEES AND EXPENSES OF THE FUND <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. <span style="font-weight: bold;">You may be required to pay commissions and/or other forms of compensation to a broker for transactions in Advisor Class</span><span style="font-weight: bold;"></span><span style="font-weight: bold;"> shares, which are not reflected in the tables or the examples below.</span> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in AB Mutual Funds. More information about these and other discounts is available from your financial intermediary and in Investing in the Funds—Sales Charge Reduction Programs for Class A Shares on page 132 of this Prospectus, in Appendix B—Financial Intermediary Waivers of this Prospectus and in Purchase of Shares—Sales Charge Reduction Programs for Class A Shares on page 199 of the Fund’s Statement of Additional Information (“SAI”).</div> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in AB Mutual Funds. 100000 Shareholder Fees (fees paid directly from your investment) 0.0425 0 0 0 0 0.0100 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0075 0.0075 0.0075 0.0075 0.0025 0.0100 0 0 0.0007 0.0007 0.0007 0.0012 0.0003 0.0003 0.0003 0.0003 0.0010 0.0010 0.0010 0.0015 0.0110 0.0185 0.0085 0.0090 Purchases of Class A shares in amounts of $1,000,000 or more, or by certain group retirement plans, may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances. For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years. Examples <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Examples assume 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 Examples also assume that your investment has a 5% return each year and that the Fund’s operating expenses stay the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</div> 529 285 84 89 757 579 268 284 1003 998 468 496 1706 1970 1046 1105 Portfolio Turnover <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund pays transaction costs, such as commissions, when it buys or 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 transaction costs, which are not reflected in the Annual Fund Operating Expenses or in the Examples, affect the Fund’s performance. During the most recent fiscal period, the Fund’s portfolio turnover rate was 44% of the average value of its portfolio.</div> 0.44 PRINCIPAL STRATEGIES <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund invests primarily in domestic equity securities of companies selected by the Fund’s Adviser for their growth potential within various market sectors. The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of companies meeting the Adviser’s growth criteria. For purposes of this policy, companies meeting the Adviser’s growth criteria are those companies with securities included in any one of the following indexes: the Russell 3000<sup style="font-size: 75%; vertical-align: top;">®</sup> Growth Index, the MSCI ACWI IMI Growth, and the Morningstar Global All‑Cap Growth TME. When selecting securities, the Adviser seeks companies that have experienced management teams, strong market positions, and the potential to deliver greater-than-expected earnings growth rates.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">In managing the Fund, the Adviser allocates investments among broad sector groups and selects specific investments based on the fundamental company research conducted by the Adviser’s internal research staff, assessing the current and forecasted investment opportunities and conditions, as well as diversification and risk considerations. The Adviser’s research focus is on companies with high sustainable growth prospects, high or improving return on invested capital, transparent business models, and clear competitive advantages.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund has the flexibility to invest across the capitalization spectrum. The Fund is designed for those seeking exposure to companies of various sizes, and typically has substantial investments in both large-capitalization companies and mid‑capitalization companies, and may also invest in small-capitalization companies.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund may enter into derivatives transactions, such as options, futures contracts, forwards and swaps. The Fund may use options strategies involving the purchase and/or writing of various combinations of call and/or put options, including on individual securities and stock indices, futures contracts (including futures contracts on individual securities and stock indices) or shares of exchange-traded funds (“ETFs”). These transactions may be used, for example, in an effort to earn extra income, to adjust exposure to individual securities or markets, or to protect all or a portion of the Fund’s portfolio from a decline in value.</div> The Fund invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities of companies meeting the Adviser’s growth criteria. For purposes of this policy, companies meeting the Adviser’s growth criteria are those companies with securities included in any one of the following indexes: the Russell 3000<sup style="font-size: 75%; vertical-align: top;">®</sup> Growth Index, the MSCI ACWI IMI Growth, and the Morningstar Global All‑Cap Growth TME. When selecting securities, the Adviser seeks companies that have experienced management teams, strong market positions, and the potential to deliver greater-than-expected earnings growth rates. For purposes of this policy, companies meeting the Adviser’s growth criteria are those companies with securities included in any one of the following indexes: the Russell 3000<sup style="font-size: 75%; vertical-align: top;">®</sup> Growth Index, the MSCI ACWI IMI Growth, and the Morningstar Global All‑Cap Growth TME. When selecting securities, the Adviser seeks companies that have experienced management teams, strong market positions, and the potential to deliver greater-than-expected earnings growth rates. <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Market Risk: </span>The value of the Fund’s assets will fluctuate as the market or markets in which the Fund invests fluctuate. The value of the Fund’s investments may decline, sometimes rapidly and unpredictably, simply because of economic changes or other events, including public health crises (including the occurrence of a contagious disease or illness), terrorism, war, changing interest rate levels, the imposition of new or additional tariffs, and regional and global conflicts, that affect large portions of the market. It includes the risk that a particular style of investing may be underperforming the market generally.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Focused Portfolio Risk: </span>Investments in a limited number of companies may have more risk because changes in the value of a single security may have a more significant effect, either negative or positive, on the Fund’s net asset value, or NAV.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Sector Risk: </span>The Fund may have more risk because it may invest to a significant extent in one or more particular market sectors, such as the information technology sector. To the extent it does so, market or economic factors affecting the relevant sector(s) could have a major effect on the value of the Fund’s investments.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capitalization Risk: </span>Investments in small- and mid‑capitalization companies may be more volatile than investments in large-capitalization companies. Investments in small-capitalization companies may have additional risks because these companies have limited product lines, markets or financial resources.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capital Gain Risk:</span> As of the date of this Prospectus, a substantial portion of the Fund’s net asset value is attributable to realized and/or net unrealized capital gains on portfolio securities. If the Fund realizes capital gains in excess of realized capital losses in any fiscal year, it generally expects to make capital gain distributions to shareholders. You may receive distributions that are attributable to appreciation of portfolio securities that happened before you made your investment. Unless you purchase shares through a tax‑advantaged account (such as an IRA or 401(k) plan), these distributions will be taxable to you even though they economically represent a return of a portion of your investment. You should consult your tax professional about your investment in the Fund.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Management Risk:</span> The Fund is subject to management risk because it is an actively-managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions for the Fund, but there is no guarantee that its techniques will produce the intended results. Some of these techniques may incorporate, or rely upon, quantitative models, but there is no guarantee that these models will generate accurate forecasts, reduce risk or otherwise perform as expected.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">As with all investments, you may lose money by investing in the Fund.</div> BAR CHART AND PERFORMANCE INFORMATION <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The bar chart and performance information provide an indication of the historical risk of an investment in the Fund by showing:</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s performance changed from year to year over ten years; and</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index and an additional index that more closely reflects the types of securities in which the Fund invests.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">You may obtain updated performance information on the Fund’s website at <span style="text-decoration: underline;">www.abfunds.com</span> (click on “Investments—Mutual Funds”).</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future.</div> how the Fund’s performance changed from year to year over ten years; andhow the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index and an additional index that more closely reflects the types of securities in which the Fund invests. www.abfunds.com The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future. Bar Chart <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. Through September 30, 2026, the year‑to‑date unannualized return for Class A shares was 5.88%.</div> The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. 2026-09-30 year‑to‑date 0.0588 Best Quarter 0.2916 2020-06-30 Worst Quarter -0.1942 2022-06-30 Performance Table Average Annual Total Returns (For the periods ended December 31, 2025) 0.0618 0.1037 0.1518 0.0257 0.0781 0.1286 0.0614 0.0794 0.1220 0.0905 0.1048 0.1481 0.1116 0.1161 0.1597 0.1107 0.1155 0.1601 0.1788 0.1442 0.1482 0.1815 0.1459 0.1759 After‑tax returns:–Are an estimate, which is based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; After‑tax returns:–Are shown for Class A shares only and will vary for the other Classes of shares because these Classes have different expense ratios; actual after‑tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and–Are not relevant to investors who hold Fund shares through tax‑deferred arrangements such as 401(k) plans or individual retirement accounts. AB Wealth Appreciation Strategy INVESTMENT OBJECTIVE <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s investment objective is long-term growth of capital.</div> FEES AND EXPENSES OF THE FUND <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. <span style="font-weight: bold;">You may be required to pay commissions and/or other forms of compensation to a broker for transactions in Advisor Class</span><span style="font-weight: bold;"></span><span style="font-weight: bold;"> shares, which are not reflected in the tables or the examples below.</span> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in the family of AB Mutual Funds sponsored by AllianceBernstein L.P., the Fund’s investment adviser (the “Adviser”). More information about these and other discounts is available from your financial intermediary and in Investing in the Funds—Sales Charge Reduction Programs for Class A Shares on page 132 of this Prospectus, in Appendix B—Financial Intermediary Waivers of this Prospectus, and in Purchase of Shares—Sales Charge Reduction Programs for Class A Shares on page 199 of the Fund’s Statement of Additional Information (“SAI”).</div> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in the family of AB Mutual Funds sponsored by AllianceBernstein L.P., the Fund’s investment adviser (the “Adviser”). 100000 Shareholder Fees (fees paid directly from your investment) 0.0425 0 0 0 0.0100 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0065 0.0065 0.0065 0.0025 0.0100 0 0.0003 0.0004 0.0003 0.0004 0.0004 0.0004 0.0007 0.0008 0.0007 0.0026 0.0026 0.0026 0.0123 0.0199 0.0098 -0.0026 -0.0026 -0.0026 0.0097 0.0173 0.0072 Purchases of Class A shares in amounts of $1,000,000 or more, or by certain group retirement plans, may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances.For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years. October 31, 2027 Examples <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Examples assume that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Examples also assume that your investment has a 5% return each year, that the Fund’s operating expenses stay the same and that any fee waiver and/or expense limitation is in effect for only the first year. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</div> 520 276 74 774 599 286 1048 1049 516 1828 2099 1178 Portfolio Turnover <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund or an investment company in which the Fund invests pays transaction costs, such as commissions, when it buys or 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 transaction costs, which are not reflected in the Annual Fund Operating Expenses or in the Examples, affect the Fund’s performance. During the most recent fiscal period, the Fund’s portfolio turnover rate was 23% of the average value of its portfolio.</div> 0.23 PRINCIPAL STRATEGIES <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund invests primarily in equity securities, either directly or through underlying investment companies advised by the Adviser (“Underlying Portfolios”). A majority of the Fund’s assets are expected to be invested directly in U.S. large‑cap equity securities, primarily common stocks, in accordance with the Adviser’s U.S. Strategic Equities investment strategy (“U.S. Strategic Equities”), as described below. In addition, the Fund seeks to achieve exposure to international large‑cap equity securities through investments in other registered investment companies advised by the Adviser, which may include <span style="font-weight: bold;">International Strategic Equities Portfolio </span>of Bernstein Fund, Inc. (“Bernstein International Strategic Equities Portfolio”). The Fund also invests in other Underlying Portfolios to efficiently gain exposure to certain other types of equity securities, including small- and mid‑cap and emerging market equity securities. An Underlying Portfolio is selected based on the segment of the equity market to which the Underlying Portfolio provides exposure, its investment philosophy, and how it complements and diversifies the Fund’s overall portfolio.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Under U.S. Strategic Equities, portfolio managers of the Adviser that specialize in various investment disciplines identify high-conviction large‑cap equity securities based on their fundamental investment research for potential investment by the Fund. These securities are then assessed in terms of both this fundamental research and quantitative analysis in creating the Fund’s portfolio. In applying the quantitative analysis, the Adviser considers a number of metrics that historically have provided some indication of favorable future returns, including metrics related to valuation, quality, investor behavior and corporate behavior.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Bernstein International Strategic Equities Portfolio focuses on investing in non‑U.S. large‑cap and mid‑cap equity securities. Bernstein International Strategic Equities Portfolio follows a strategy similar to U.S. Strategic Equities, but in the international context.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Fluctuations in currency exchange rates can have a dramatic impact on the returns of foreign equity securities. The Adviser may employ currency hedging strategies in the Fund or the Underlying Portfolios, including the use of currency-related derivatives, to seek to reduce currency risk in the Fund or the Underlying Portfolios, but it is not required to do so.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund is managed without regard to tax considerations.</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Market Risk:</span> The value of the Fund’s assets will fluctuate as the market or markets in which the Fund invests fluctuate. The value of the Fund’s investments may decline, sometimes rapidly and unpredictably, simply because of economic changes or other local, regional or global events, including public health crises (including the occurrence of a contagious disease or illness), terrorism, war, changing interest rate levels, the imposition of new or additional tariffs, or global conflicts, any of which can affect large portions of the securities markets. It includes the risk that a particular style of investing may be underperforming the market generally.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Foreign (Non‑U.S.) Risk: </span>Investments in securities of non‑U.S. issuers may involve more risk than those of U.S. issuers. These securities may fluctuate more widely in price and may be more difficult to trade due to adverse market, economic, political, regulatory or other factors.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Currency Risk: </span>Fluctuations in currency exchange rates may negatively affect the value of the Fund’s investments or reduce its returns.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Emerging Market Risk:</span> Investments in emerging market countries may have more risks than investments in other foreign countries because the markets are less developed, less liquid and are subject to increased potential for market manipulation and increased economic, political, regulatory or other uncertainties.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capitalization Risk:</span> Investments in small- and mid‑capitalization companies may be more volatile than investments in large-capitalization companies. Investments in small- and mid‑capitalization companies may have additional risks because these companies have limited product lines, markets, or financial resources.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Investment in Other Investment Companies Risk:</span> As with other investments, investments in other investment companies are subject to market and management risk. In addition, shareholders of the Fund bear both their proportionate share of expenses in the Fund (including management fees) and, indirectly, the expenses of the investment companies in which the Fund invests (to the extent these expenses are not waived or reimbursed by the Adviser).</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capital Gain Risk:</span> As of the date of this Prospectus, a substantial portion of the Fund’s net asset value is attributable to realized and/or net unrealized capital gains on portfolio securities. If the Fund realizes capital gains in excess of realized capital losses in any fiscal year, it generally expects to make capital gain distributions to shareholders. You may receive distributions that are attributable to appreciation of portfolio securities that happened before you made your investment. Unless you purchase shares through a tax‑advantaged account (such as an IRA or 401(k) plan), these distributions will be taxable to you even though they economically represent a return of a portion of your investment. You should consult your tax professional about your investment in the Fund.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Management Risk: </span>The Fund is subject to management risk because it is an actively-managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions for the Fund, but there is no guarantee that its techniques will produce the intended results. Some of these techniques may incorporate, or rely upon, quantitative models, but there is no guarantee that these models will generate accurate forecasts, reduce risk or otherwise perform as expected.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">As with all investments, you may lose money by investing in the Fund.</div> BAR CHART AND PERFORMANCE INFORMATION <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The bar chart and performance information provide an indication of the historical risk of an investment in the Fund by showing:</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s performance changed from year to year over ten years; and</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">You may obtain updated performance information on the Fund’s website at <span style="text-decoration: underline;">www.abfunds.com</span> (click on “Investments—Mutual Funds”).</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future.</div> <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman; font-weight: bold;">Effective July 14, 2017, the Fund made certain changes to its principal strategies, including the elimination of static asset allocation targets for investment, and the modification of the strategies to invest primarily in equity securities. The Fund had also previously allocated approximately one third of its assets to diversification investments such as alternative investments. Accordingly, the performance shown below for periods prior to July 14, 2017 is based on the Fund’s prior principal strategies and may not be representative of the Fund’s performance under its current principal strategies.</div> how the Fund’s performance changed from year to year over ten years; andhow the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index. www.abfunds.com The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future. Bar Chart <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. Through September 30, 2026, the year‑to‑date unannualized return for Class A shares was 12.56%.</div> The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. 2026-09-30 year‑to‑date 0.1256 Best Quarter 0.1901 2020-06-30 Worst Quarter -0.2235 2020-03-31 Performance TableAverage Annual Total Returns (For the periods ended December 31, 2025) 0.1611 0.1028 0.1031 0.1416 0.0867 0.0879 0.1072 0.0779 0.0795 0.1934 0.1039 0.0995 0.2163 0.1152 0.1106 0.2234 0.1119 0.1172 After‑tax returns:–Are estimates based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; After‑tax returns:–Are shown for Class A shares only and will vary for the other Classes of shares because these Classes have different expense ratios; actual after‑tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and–Are not relevant to investors who hold Fund shares through tax‑deferred arrangements such as 401(k) plans or individual retirement accounts. AB All Market Total Return Portfolio INVESTMENT OBJECTIVE <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s investment objective is to achieve the highest total return consistent with the Adviser’s determination of reasonable risk.</div> FEES AND EXPENSES OF THE FUND <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. <span style="font-weight: bold;">You may be required to pay commissions and/or other forms of compensation to a broker for transactions in Advisor Class</span><span style="font-weight: bold;"></span><span style="font-weight: bold;"> shares, which are not reflected in the tables or the examples below.</span> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in the family of AB Mutual Funds sponsored by AllianceBernstein L.P., the Fund’s investment adviser (the “Adviser”). More information about these and other discounts is available from your financial intermediary and in Investing in the Funds—Sales Charge Reduction Programs for Class A Shares on page 132 of this Prospectus, in Appendix B—Financial Intermediary Waivers of this Prospectus, and in Purchase of Shares—Sales Charge Reduction Programs for Class A Shares on page 199 of the Fund’s Statement of Additional Information (“SAI”).</div> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in the family of AB Mutual Funds sponsored by AllianceBernstein L.P., the Fund’s investment adviser (the “Adviser”). 100000 Shareholder Fees (fees paid directly from your investment) 0.0425 0 0 0 0 0.0100 0 0 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0055 0.0055 0.0055 0.0055 0.0025 0.0100 0 0 0.0008 0.0009 0.0009 0.0012 0.0020 0.0020 0.0020 0.0020 0.0028 0.0029 0.0029 0.0032 0.0003 0.0003 0.0003 0.0003 0.0111 0.0187 0.0087 0.0090 -0.0001 -0.0001 -0.0001 -0.0001 0.0110 0.0186 0.0086 0.0089 Purchases of Class A shares in amounts of $1,000,000 or more, or by certain group retirement plans, may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances. For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years October 31, 2027 Examples <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Examples assume that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">end of these periods. The Examples also assume that your investment has a 5% return each year, that the Fund’s operating expenses stay the same and that any fee waiver and/or expense limitation is in effect for only the first year. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</div> 532 289 88 91 762 587 277 286 1010 1010 481 497 1718 1991 1072 1107 Portfolio Turnover <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund pays transaction costs, such as commissions, when it buys or 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 transaction costs, which are not reflected in the Annual Fund Operating Expenses or in the Examples, affect the Fund’s performance. During the most recent fiscal period, the Fund’s portfolio turnover rate was 158% of the average value of its portfolio.</div> 1.58 PRINCIPAL STRATEGIES <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Adviser allocates the Fund’s investments primarily among a number of asset classes, including equity securities, fixed-income securities, and a number of alternative asset classes and alternative investment strategies. The Fund pursues a global strategy, typically investing in securities of issuers located in the United States and in other countries throughout the world, including emerging market countries. Under normal circumstances, at least 40% of the Fund’s net assets will be invested in securities of non‑U.S. issuers.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s investments in equity securities of issuers consist primarily of securities of large-capitalization companies, but include securities of small- and mid‑capitalization companies to a lesser extent, and include derivatives related to equity securities. In selecting equity securities for the Fund, the Adviser uses fundamental and quantitative analysis with the goal of generating returns primarily from security selection rather than price movements in equity securities generally. Fixed-income securities include corporate and sovereign debt securities as well as interest rate derivatives and credit derivatives such as credit default swaps. Fixed-income securities also include debt securities with lower credit ratings (commonly known as “junk bonds”). In selecting fixed-income securities for the Fund, the Adviser attempts to take advantage of inefficiencies that it believes exist in the global fixed-income markets. These inefficiencies arise from investor behavior, market complexity, and the investment limitations to which investors are subject.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Alternative investments include various instruments the returns on which are expected to have low correlation with returns on equity and fixed-income securities, such as commodities and related derivatives, real estate-related securities, and inflation-indexed securities. Alternative investment strategies that may be pursued by the Fund directly or indirectly through investment in other registered investment companies include (i) long/short equity strategies through which the Fund takes long positions in certain securities in the expectation that they will increase in value and takes short positions in other securities in the expectation that they will decrease in value; (ii) strategies that consider macroeconomic and technical factors to identify and exploit opportunities across global asset classes; and (iii) event-driven strategies that invest in the securities of companies that are expected to become the subject of major corporate events and companies in which an active role in company management has been taken or sought by a third-party investor.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Adviser tactically adjusts the Fund’s asset class exposure utilizing both fundamental analysis and quantitative tools. These quantitative tools are employed by the Adviser to gauge fluctuations in the risk/return profile of various asset classes. Tactical adjustments aim to capitalize on changing market conditions to mitigate volatility or enhance long-term return potential. For example, the Adviser may seek to reduce the Fund’s risk exposure to one or more assets classes when the combined research suggests that market risks relevant to those asset classes are rising but return opportunities are declining. In addition to merely increasing or decreasing asset class exposure by buying or selling securities of that asset class, the Adviser may make tactical adjustments for the Fund by utilizing derivatives.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Adviser intends to utilize a variety of derivatives in its management of the Fund. As noted above, the Adviser may use derivatives to gain exposure to various asset classes, and may cause the Fund to enter into derivatives to express its tactical views. As a result of the use of derivatives, the Fund will frequently be leveraged, with net investment exposure substantially in excess of net assets.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">While the Fund may seek to gain exposure to physical commodities traded in the commodities markets through investments in a variety of derivative instruments, the Adviser expects to seek exposure to commodities and commodities-related instruments and derivatives primarily through investments in AB All Market Total Return Portfolio (Cayman), Ltd., a wholly-owned subsidiary of the Fund organized under the laws of the Cayman Islands (the “All Market Total Return Subsidiary”). The All Market</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Total Return Subsidiary is advised by the Adviser and has the same investment objective and substantially similar investment policies and restrictions as the Fund except that the All Market Total Return Subsidiary, unlike the Fund, may invest, without limitation, in commodities and commodities-related instruments. The Fund is subject to the risks associated with the commodities, derivatives and other instruments in which the All Market Total Return Subsidiary invests, to the extent of its investment in the All Market Total Return Subsidiary. The Fund limits its investment in the All Market Total Return Subsidiary to no more than 25% of its total assets. Investment in the All Market Total Return Subsidiary is expected to provide the Fund with commodity exposure within the limitations of federal tax requirements that apply to the Fund.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Currency exchange rate fluctuations can have a dramatic impact on returns. The Fund’s foreign currency exposures will come from investment in securities priced or denominated in foreign currencies and from direct holdings in foreign currencies and currency-related derivatives. The Adviser may seek to hedge all or a portion of the currency exposure resulting from Fund investments or decide not to hedge this exposure. The Adviser may seek investment opportunities by taking long or short positions in currencies through the use of currency-related derivatives.</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Market Risk:</span> The value of the Fund’s assets will fluctuate as the market or markets in which the Fund invests fluctuate. The value of the Fund’s investments may decline, sometimes rapidly and unpredictably, simply because of economic changes or other local, regional or global events, including public health crises (including the occurrence of a contagious disease or illness), terrorism, war, changing interest rate levels, the imposition of new or additional tariffs, or global conflicts, any of which can affect large portions of the securities markets. It includes the risk that a particular style of investing may be underperforming the market generally.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Allocation Risk:</span> The allocation of investments among different investment styles, such as equity or debt, growth or value, U.S. or non‑U.S. securities, or diversification strategies, may have a more significant effect on the Fund’s net asset value, or NAV, when one of these investments is performing more poorly than another.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Credit Risk:</span> An issuer or guarantor of a fixed-income security, or the counterparty to a derivatives or other contract, may be unable or unwilling to make timely payments of interest or principal, or to otherwise honor its obligations. The issuer or guarantor may default, causing a loss of the full principal amount of a security and accrued interest. The degree of risk for a particular security may be reflected in its credit rating. There is the possibility that the credit rating of a fixed-income security may be downgraded after purchase, which may adversely affect the value of the security. Investments in fixed-income securities with lower ratings (commonly known as “junk bonds”) are subject to a higher probability that an issuer will default or fail to meet its payment obligations.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">High Yield Debt Securities Risk: </span>Investments in fixed-income securities with lower ratings (commonly known as “junk bonds”) tend to have a higher probability that an issuer will default or fail to meet its payment obligations. These securities may be subject to greater price volatility due to such factors as specific corporate developments, interest rate sensitivity, negative perceptions of the junk bond market generally and less secondary market liquidity.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Interest Rate Risk:</span> Changes in interest rates will affect the value of the Fund’s investments in fixed-income securities. When interest rates rise, the value of existing investments in fixed-income securities tends to fall and this decrease in value may not be offset by higher income from new investments. Interest rate risk is generally greater for fixed-income securities with longer maturities or durations. Changing interest rates may have unpredictable effects on the markets, may result in heightened market volatility and may detract from Fund performance. In addition, changes in monetary policy may exacerbate the risks associated with changing interest rates.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Inflation Risk: </span>This is the risk that the value of assets or income from investments will be less in the future as inflation decreases the value of money. As inflation increases, the value of the Fund’s assets can decline as can the value of the Fund’s distributions. This risk is significantly greater for fixed-income securities with longer maturities.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Foreign (Non‑U.S.) Risk:</span> Investments in securities of non‑U.S. issuers may involve more risk than those of U.S. issuers. These securities may fluctuate more widely in price and may be more difficult to trade due to adverse market, economic, political, regulatory or other factors.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Currency Risk:</span> Fluctuations in currency exchange rates may negatively affect the value of the Fund’s investments or reduce its returns.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Emerging Market Risk:</span> Investments in emerging market countries may have more risks than investments in other foreign countries because the markets are less developed, less liquid and are subject to increased potential for market manipulation and increased economic, political, regulatory or other uncertainties.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Alternative Investments Risk:</span> Many alternative investments can be volatile and may be illiquid. Their performance may have little correlation with the performance of equity or fixed-income markets, and they may not perform in accordance with expectations.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capitalization Risk:</span> Investments in small- and mid‑capitalization companies may be more volatile than investments in large-capitalization companies. Investments in small-capitalization companies may have additional risks because these companies have limited product lines, markets, or financial resources.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Derivatives Risk:</span> Derivatives may be difficult to price or unwind and leveraged so that small changes may produce disproportionate losses for the Fund. A short position in a derivative instrument involves the risk of a theoretically unlimited increase in the value of the underlying asset, reference rate or index, which could cause the Fund to suffer a potentially unlimited loss. Derivatives, especially over‑the‑counter derivatives, are also subject to counterparty risk, which is the risk that the counterparty (the party on the other side of the transaction) on a derivative transaction will be unable or unwilling to honor its contractual obligations to the Fund.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Leverage Risk:</span> To the extent the Fund uses leveraging techniques, its NAV may be more volatile because leverage tends to exaggerate the effect of changes in interest rates and any increase or decrease in the value of the Fund’s investments.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Commodity Risk:</span> Investing in commodities and commodity-linked derivative instruments may subject the Fund to greater volatility than investments in traditional securities. The value of commodity-linked derivative instruments may be affected by overall market movements, commodity index volatility, changes in interest rates, or factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and international economic, political and regulatory developments.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Subsidiary Risk:</span> By investing in the All Market Total Return Subsidiary, the Fund is indirectly exposed to the risks associated with the All Market Total Return Subsidiary. The derivatives and other investments held by the All Market Total Return Subsidiary are generally similar to those that are permitted to be held by the Fund and are subject to the same risks that apply to similar investments if held directly by the Fund. The All Market Total Return Subsidiary is not registered under the Investment Company Act of 1940, as amended (the “1940 Act”), and, unless otherwise noted in this Prospectus, is not subject to all of the investor protections of the 1940 Act. However, the Fund wholly owns and controls the All Market Total Return Subsidiary, and the Fund and the All Market Total Return Subsidiary are managed by the Adviser, making it unlikely the All Market Total Return Subsidiary will take actions contrary to the interests of the Fund or its shareholders. In addition, changes in federal tax laws applicable to the Fund or interpretations thereof could limit the Fund’s ability to gain exposure to commodities investments through investments in the All Market Total Return Subsidiary.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Short Sale Risk: </span>Short sales involve the risk that the Fund will incur a loss by subsequently buying a security at a higher price than the price at which it sold the security. The amount of such loss is theoretically unlimited, as it will be based on the increase in value of the security sold short. In contrast, the risk of loss from a long position is limited to the Fund’s investment in the security, because the price of the security cannot fall below zero. The Fund may not always be able to close out a short position on favorable terms.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Active Trading Risk:</span> The Fund expects to engage in active and frequent trading of its portfolio securities and its portfolio turnover rate may greatly exceed 100%. A higher rate of portfolio turnover increases transaction costs, which may negatively affect the Fund’s return. In addition, a high rate of portfolio turnover may result in substantial short-term gains, which may have adverse tax consequences for Fund shareholders.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Management Risk: </span>The Fund is subject to management risk because it is an actively-managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions for the Fund, but there is no guarantee that its techniques will produce the intended results. Some of these techniques may incorporate, or rely upon, quantitative models, but there is no guarantee that these models will generate accurate forecasts, reduce risk or otherwise perform as expected.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">As with all investments, you may lose money by investing in the Fund.</div> BAR CHART AND PERFORMANCE INFORMATION <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The bar chart and performance information provide an indication of the historical risk of an investment in the Fund by showing:</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s performance changed from year to year over ten years; and</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">You may obtain updated performance information on the Fund’s website at <span style="text-decoration: underline;">www.abfunds.com</span> (click on “Investments—Mutual Funds”).</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future.</div> <div style="margin-top: 12pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman; font-weight: bold;">Effective April 24, 2017, the Fund changed its name from AB Balanced Wealth Strategy to AB All Market Total Return Portfolio and made certain material changes to its principal strategies, including the elimination of rela-</div> <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman; font-weight: bold;">tively static asset allocation targets for investment, and increased investment in derivatives and securities of non‑U.S. issuers. Accordingly, the performance shown below for periods prior to April 24, 2017 is based on the Fund’s prior principal strategies and may not be representative of the Fund’s performance under its current principal strategies.</div> how the Fund’s performance changed from year to year over ten years; andhow the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index. www.abfunds.com The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future. Bar Chart <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. Through September 30, 2026, the year‑to‑date unannualized return for Class A shares was 7.64%.</div> The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. 2026-09-30 year‑to‑date 0.0764 Best Quarter 0.1092 2020-06-30 Worst Quarter -0.1798 2020-03-31 Performance Table Average Annual Total Returns (For the periods ended December 31, 2025) 0.1035 0.0377 0.0503 0.0706 0.0221 0.0387 0.0740 0.0257 0.0365 0.1339 0.0389 0.0469 0.1558 0.0494 0.0576 0.1554 0.0508 0.0581 0.2234 0.1119 0.1172 0.0486 0.0034 0.0239 After‑tax returns:–Are shown for Class A shares only and will vary for other Classes of shares because these Classes have different expense ratios; After‑tax returns:–Are estimates based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after‑tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and–Are not relevant to investors who hold Fund shares through tax‑deferred arrangements such as 401(k) plans or individual retirement accounts. The information for the Bloomberg Global Aggregate Bond (USD Hedged) Index is presented to show how the Fund’s performance compares with the returns of an index of securities similar to those in which the Fund invests. AB Tax‑Managed Wealth Appreciation Strategy INVESTMENT OBJECTIVE <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s investment objective is long-term growth of capital.</div> FEES AND EXPENSES OF THE FUND <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">This table describes the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. <span style="font-weight: bold;">You may be required to pay commissions and/or other forms of compensation to a broker for transactions in Advisor Class</span><span style="font-weight: bold;"></span><span style="font-weight: bold;"> shares, which are not reflected in the tables or the examples below.</span> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in the family of AB Mutual Funds sponsored by AllianceBernstein L.P., the Fund’s investment adviser (the “Adviser”). More information about these and other discounts is available from your financial intermediary and in Investing in the Funds—Sales Charge Reduction Programs for Class A Shares on page 132 of this Prospectus, in Appendix B—Financial Intermediary Waivers of this Prospectus, and in Purchase of Shares—Sales Charge Reduction Programs for Class A Shares on page 199 of the Fund’s Statement of Additional Information (“SAI”).</div> You may qualify for sales charge reductions if you and members of your family invest, or agree to invest in the future, at least $100,000 in the family of AB Mutual Funds sponsored by AllianceBernstein L.P., the Fund’s investment adviser (the “Adviser”). 100000 Shareholder Fees (fees paid directly from your investment) 0.0425 0 0 0 0.0100 0 0 0 0 Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) 0.0065 0.0065 0.0065 0.0025 0.0100 0 0.0002 0.0002 0.0002 0.0004 0.0004 0.0004 0.0006 0.0006 0.0006 0.0028 0.0028 0.0028 0.0124 0.0199 0.0099 -0.0026 -0.0026 -0.0026 0.0098 0.0173 0.0073 Purchases of Class A shares in amounts of $1,000,000 or more may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances.For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years. October 31, 2027 Examples <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Examples are intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Examples assume that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of these periods. The Examples also assume that your investment has a 5% return each year, that the Fund’s operating expenses stay the same and that any fee waiver and/or expense limitation is in effect for only the first year. Although your actual costs may be higher or lower, based on these assumptions your costs would be:</div> 521 276 75 777 599 289 1053 1049 522 1839 2102 1189 Portfolio Turnover <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund or an investment company in which the Fund invests pays transaction costs, such as commissions, when it buys or 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 transaction costs, which are not reflected in the Annual Fund Operating Expenses or in the Examples, affect the Fund’s performance. During the most recent fiscal period, the Fund’s portfolio turnover rate was 21% of the average value of its portfolio.</div> 0.21 PRINCIPAL STRATEGIES <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund invests primarily in equity securities, either directly or through underlying investment companies advised by the Adviser (“Underlying Portfolios”). A majority of the Fund’s assets are expected to be invested directly in U.S. large‑cap equity securities, primarily common stocks, in accordance with the Adviser’s U.S. Strategic Equities investment strategy (“U.S. Strategic Equities”), as described below. In addition, the Fund seeks to achieve exposure to international large‑cap equity securities through investments in other registered investment companies advised by the Adviser, which may include <span style="font-weight: bold;">International Strategic Equities Portfolio </span>of Bernstein Fund, Inc. (“Bernstein International Strategic Equities Portfolio”). The Fund also invests in other Underlying Portfolios to efficiently gain exposure to certain other types of equity securities, including small- and mid‑cap and emerging market equity securities. An Underlying Portfolio is selected based on the segment of the equity market to which the Underlying Portfolio provides exposure, its investment philosophy, and how it complements and diversifies the Fund’s overall portfolio.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Under U.S. Strategic Equities, portfolio managers of the Adviser that specialize in various investment disciplines identify high-conviction large‑cap equity securities based on their fundamental investment research for potential investment by the Fund. These securities are then assessed in terms of both this fundamental research and quantitative analysis in creating the Fund’s portfolio. In applying the quantitative analysis, the Adviser considers a number of metrics that historically have provided some indication of favorable future returns, including metrics related to valuation, quality, investor behavior and corporate behavior.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Bernstein International Strategic Equities Portfolio focuses on investing in non‑U.S. large‑cap and mid‑cap equity securities. Bernstein International Strategic Equities Portfolio follows a strategy similar to U.S. Strategic Equities, but in the international context.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">Fluctuations in currency exchange rates can have a dramatic impact on the returns of foreign equity securities. The Adviser may employ currency hedging strategies in the Fund or the Underlying Portfolios, including the use of currency-related derivatives, to seek to reduce currency risk in the Fund or the Underlying Portfolios, but it is not required to do so.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund seeks to maximize after‑tax returns to shareholders by taking into account the tax impact of buy and sell investment decisions on its shareholders. For example, the Adviser may sell certain securities in order to realize capital losses. Capital losses may be used to offset realized capital gains. To minimize capital gains distributions, the Adviser may sell securities held by the Fund with the highest cost basis. The Adviser may monitor the length of time the Fund has held an investment to evaluate whether the investment should be sold at a short-term gain or held for a longer period so that the gain on the investment will be taxed at the lower long-term rate. In making this decision, the Adviser considers whether, in its judgment, the risk of continued exposure to the investment is worth the tax savings of a lower capital gains rate. There can be no assurance that any of these strategies will be effective or that their use will not adversely affect the gross returns of the Fund.</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Market Risk:</span> The value of the Fund’s assets will fluctuate as the market or markets in which the Fund invests fluctuate. The value of the Fund’s investments may decline, sometimes rapidly and unpredictably, simply because of economic changes or other local, regional or global events, including public health crises (including the occurrence of a contagious disease or illness), terrorism, war,</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 2%;"> </td> <td style="vertical-align: top;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt;">changing interest rate levels, the imposition of new or additional tariffs, or global conflicts, any of which can affect large portions of the securities markets. It includes the risk that a particular style of investing may be underperforming the market generally.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Foreign (Non‑U.S.) Risk:</span> The Fund’s investments in securities of non‑U.S. issuers may involve more risk than those of U.S. issuers. These securities may fluctuate more widely in price and may be more difficult to trade due to adverse market, economic, political, regulatory or other factors.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Currency Risk:</span> Fluctuations in currency exchange rates may negatively affect the value of the Fund’s investments or reduce its returns.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Emerging Market Risk:</span> Investments in emerging market countries may have more risks than investments in other foreign countries because the markets are less developed, less liquid and are subject to increased potential for market manipulation and increased economic, political, regulatory or other uncertainties.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capitalization Risk:</span> Investments in small- and mid‑capitalization companies may be more volatile than investments in large-capitalization companies. Investments in small- and mid‑capitalization companies may have additional risks because these companies have limited product lines, markets, or financial resources.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Investment in Other Investment Companies Risk:</span> As with other investments, investments in other investment companies are subject to market and management risk. In addition, shareholders of the Fund bear both their proportionate share of expenses in the Fund (including management fees) and, indirectly, the expenses of the investment companies in which the Fund invests (to the extent these expenses are not waived or reimbursed by the Adviser).</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Capital Gain Risk:</span> As of the date of this Prospectus, a substantial portion of the Fund’s net asset value is attributable to realized and/or net unrealized capital gains on portfolio securities. If the Fund realizes capital gains in excess of realized capital losses in any fiscal year, it generally expects to make capital gain distributions to shareholders. You may receive distributions that are attributable to appreciation of portfolio securities that happened before you made your investment. Unless you purchase shares through a tax‑advantaged account (such as an IRA or 401(k) plan), these distributions will be taxable to you even though they economically represent a return of a portion of your investment. You should consult your tax professional about your investment in the Fund.</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;"><span style="font-weight: bold;">Management Risk:</span> The Fund is subject to management risk because it is an actively-managed investment fund. The Adviser will apply its investment techniques and risk analyses in making investment decisions for the Fund, but there is no guarantee that its techniques will produce the intended results. Some of these techniques may incorporate, or rely upon, quantitative models, but there is no guarantee that these models will generate accurate forecasts, reduce risk or otherwise perform as expected. The Fund’s tax‑management strategies may result in it forgoing performance in favor of tax benefits that may not materialize, or may result in pre‑tax performance that is lower than that of funds that do not use tax‑management strategies.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">As with all investments, you may lose money by investing in the Fund.</div> BAR CHART AND PERFORMANCE INFORMATION <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The bar chart and performance information provide an indication of the historical risk of an investment in the Fund by showing:</div> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s performance changed from year to year over ten years; and</div> </td> </tr> </table> <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; font-family: times new roman; font-size: 10pt; border-spacing: 0px; width: 100%;"> <tr style="page-break-inside: avoid;"> <td style="width: 1%; vertical-align: top; text-align: left;">•</td> <td style="width: 1%; vertical-align: top;"> </td> <td style="vertical-align: top; text-align: left;"> <div style="margin-top: 0pt; margin-bottom: 0pt; font-family: times new roman; font-size: 10pt; text-align: left;">how the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index.</div> </td> </tr> </table> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">You may obtain updated performance information on the Fund’s website at <span style="text-decoration: underline;">www.abfunds.com</span> (click on “Investments—Mutual Funds”).</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future.</div> <div style="margin-top: 6pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman; font-weight: bold;">Effective July 14, 2017, the Fund made certain changes to its principal strategies, including the elimination of static asset allocation targets for investment, and the modification of the strategies to invest primarily in equity securities. The Fund also previously allocated approximately one third of its assets to diversification investments such as alternative investments. Accordingly, the performance shown below for periods prior to July 14, 2017 is based on the Fund’s prior principal strategies and may not be representative of the Fund’s performance under its current principal strategies.</div> how the Fund’s performance changed from year to year over ten years; andhow the Fund’s average annual returns for one, five and ten years compare to those of a broad-based securities market index. www.abfunds.com The Fund’s past performance before and after taxes, of course, does not necessarily indicate how it will perform in the future. Bar Chart <div style="margin-top: 0pt; margin-bottom: 0pt; font-size: 10pt; font-family: times new roman;">The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. Through September 30, 2026, the year‑to‑date unannualized return for Class A shares was 12.11%.</div> The annual returns in the bar chart are for the Fund’s Class A shares and do not reflect sales loads. If sales loads were reflected, returns would be less than those shown. 2026-09-30 year‑to‑date 0.1211 Best Quarter 0.1891 2020-06-30 Worst Quarter -0.2247 2020-03-31 Performance Table Average Annual Total Returns (For the periods ended December 31, 2025) 0.1603 0.1002 0.1016 0.1486 0.0904 0.0895 0.1023 0.0774 0.0793 0.1925 0.1014 0.0980 0.2146 0.1126 0.1092 0.2234 0.1119 0.1172 After‑tax returns:–Are estimates based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; After‑tax returns:–Are shown for Class A shares only and will vary for other Classes of shares because these Classes have different expense ratios; actual after‑tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and–Are not relevant to investors who hold Fund shares through tax‑deferred arrangements such as 401(k) plans or individual retirement accounts. Purchases of Class A shares in amounts of $1,000,000 or more, or by certain group retirement plans, may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances. For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years. The Adviser has contractually agreed to waive fees and/or reimburse the expenses payable to the Adviser by the Fund in an amount equal to the Fund’s share of the advisory fees of any AB Funds in which the Fund invests, as included in “Acquired Fund Fees and Expenses” and paid by the Fund. In connection with the Fund’s investments in AB Government Money Market Portfolio (the “Money Market Portfolio”) (except for the investment of any cash collateral from securities lending), the Adviser has contractually agreed to waive its management fee from the Fund and/or reimburse other expenses of the Fund in an amount equal to the Fund’s pro rata share of the Money Market Portfolio’s effective management fee, as included in “Acquired Fund Fees and Expenses”. Each of the agreements will remain in effect until October 31, 2027 and may only be terminated or changed with the consent of the Fund’s Board of Trustees. In addition, each of the agreements will be automatically extended for one‑year terms unless the Adviser provides notice of termination to the Fund at least 60 days prior to the end of the period. If you did not redeem your shares at the end of the period, your expenses would be decreased by approximately $100. After-tax returns: – Are shown for Class A shares only and will vary for the other Classes of shares because these Classes have different expense ratios; – Are estimates based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after-tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and – Are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. Purchases of Class A shares in amounts of $1,000,000 or more, or by certain group retirement plans, may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances. For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years In connection with the Fund’s investments in AB Government Money Market Portfolio (the “Money Market Portfolio”) (except for the investment of any cash collateral from securities lending), the Adviser has contractually agreed to waive its management fee from the Fund and/or reimburse other expenses of the Fund in an amount equal to the Fund’s pro rata share of the Money Market Portfolio’s effective management fee. Each of the agreements will remain in effect until October 31, 2027 and may only be terminated or changed with the consent of the Fund’s Board of Trustees. In addition, each of the agreements will be automatically extended for one‑year terms unless the Adviser provides notice of termination to the Fund at least 60 days prior to the end of the period. If you did not redeem your shares at the end of the period, your expenses would be decreased by approximately $100. After-tax returns: – Are shown for Class A shares only and will vary for other Classes of shares because these Classes have different expense ratios; – Are estimates based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after-tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and – Are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. The information for the Bloomberg Global Aggregate Bond (USD Hedged) Index is presented to show how the Fund’s performance compares with the returns of an index of securities similar to those in which the Fund invests. Purchases of Class A shares in amounts of $1,000,000 or more may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances. For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years. The Adviser has contractually agreed to waive fees and/or reimburse the expenses payable to the Adviser by the Fund in an amount equal to the Fund’s share of the advisory fees of any AB Funds in which the Fund invests, as included in “Acquired Fund Fees and Expenses” and paid by the Fund. In connection with the Fund’s investments in AB Government Money Market Portfolio (the “Money Market Portfolio”) (except for the investment of any cash collateral from securities lending), the Adviser has contractually agreed to waive its management fee from the Fund and/or reimburse other expenses of the Fund in an amount equal to the Fund’s pro rata share of the Money Market Portfolio’s effective management fee, as included in “Acquired Fund Fees and Expenses”. Each of the agreements will remain in effect until October 31, 2027 and may only be terminated or changed with the consent of the Fund’s Board of Trustees. In addition, each of the agreements will be automatically extended for one‑year terms unless the Adviser provides notice of termination to the Fund at least 60 days prior to the end of the period. If you did not redeem your shares at the end of the period, your expenses would be decreased by approximately $100. After-tax returns: – Are shown for Class A shares only and will vary for other Classes of shares because these Classes have different expense ratios; – Are estimates based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after-tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and – Are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. If you did not redeem your shares at the end of the period, your expenses would be decreased by approximately $100. Purchases of Class A shares in amounts of $1,000,000 or more, or by certain group retirement plans, may be subject to a 1%, 1‑year contingent deferred sales charge, or CDSC, which may be subject to waiver in certain circumstances. After-tax returns: – Are shown for Class A shares only and will vary for the other Classes of shares because these Classes have different expense ratios; – Are an estimate, which is based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after-tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and – Are not relevant to investors who hold Fund shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts. For Class C shares, the CDSC is 0% after the first year. Class C shares automatically convert to Class A shares after eight years.