Summary Prospectus by Investment Company (Form 497K)

      

Before you invest, you may want to review the fund's prospectus, which contains more information about the fund and its risks. You may find the fund's prospectus and other information about the fund online at:

www.statestreet.com/im

You also may get this information at no cost by calling (800) 242-0134 or by sending an e-mail request to [email protected]. The fund's current prospectus and statement of additional information are incorporated by reference into this summary prospectus.

Investment Objective

Elfun Diversified Fund (the "Fund") seeks the highest total return consistent with prudent investment management and the preservation of capital (total return includes both income and capital appreciation).

Fees and Expenses of the Fund

The tables below describe the fees and expenses that you may pay if you buy, hold, and sell shares of the Fund ("Fund Shares"). You may pay other fees, such as brokerage commissions and other fees to financial intermediaries which are not reflected in the tables and examples below. 

Shareholder Fees (fees paid directly from your investment) 

Maximum Sales Charge (Load) Imposed On Purchases (as a percentage of offering price)	None
Maximum Deferred Sales Charge (Load) (as a percentage of the net asset value)	None

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

Management Fees	0.17%
Distribution and Shareholder Service (12b-1) Fees	N/A
Other Expenses	0.17%
Acquired Fund Fees and Expenses	0.02%
Total Annual Fund Operating Expenses	0.36%
Less Fee Waivers and/or Expense Reimbursements1	(0.02)%
Total Annual Fund Operating Expenses After Fee Waivers and/or Expense Reimbursements	0.34%

Example

This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated, and then sell or hold all of your Fund Shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. The calculation of costs for the one-year period takes into

      

account the effect of any current contractual fee waivers and/or reimbursements; and the calculation of costs for the remaining periods takes such fee waivers and/or reimbursements into account only for the first year of each such period. Although your actual costs may be higher or lower, based on these assumptions your costs would be: 

1 year	3 years	5 years	10 years
$35	$114	$200	$454

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund Shares are held in a taxable account. These costs, which are not reflected in Annual Fund Operating Expenses or in the Example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 43% of the average value of its portfolio.

Principal Investment Strategies

The Fund seeks to achieve its investment objective by investing primarily in a combination of U.S. and foreign (non-U.S.) equity and debt securities and cash. The Fund invests in equity securities, such as common and preferred stocks, principally for their capital appreciation potential, and investment-grade debt securities principally for their income potential. The Fund holds cash principally for the preservation of capital, income potential or maintenance of liquidity.

The Fund's investments in U.S. equity securities (also referred to as domestic equity investments) are achieved primarily through a "passive" or "indexing" investment approach of investing all or substantially all of its assets allocated to domestic equity investments directly in the securities that constitute the S&P 500® Index (the "S&P 500"). The S&P 500 is a well-known stock market index that includes common stocks of 500 companies from a number of sectors and that measures the performance of the large-cap sector of the U.S. equities market. As of February 28, 2026, a significant portion of the S&P 500 comprised companies in the information technology sector, although this may change from time to time. Using the Fund's U.S. equity allocation, the Fund generally intends to invest in all stocks comprising the S&P 500 in approximate proportion to their weightings in the index. However, under various circumstances, it may not be possible or practicable to purchase all stocks in those weightings. In those circumstances, the Fund may purchase a sample of the stocks in the S&P 500 in proportions expected by SSGA Funds Management, Inc. ("SSGA FM" or the "Adviser"), the investment adviser to the Fund, to match generally, before fees and expenses, the performance of the S&P 500 as a whole.

The Fund's investments in foreign equity securities (non-U.S. equity investments) will be achieved primarily through a passive investment approach of investing all or substantially all of its assets allocated to foreign equity investments in the State Street Global All Cap Equity ex-U.S. Index Portfolio (the "Global All Cap Equity ex-U.S. Portfolio" or the "Portfolio"), a mutual fund advised by SSGA FM. The Global All Cap Equity ex-U.S. Portfolio is an "index" fund that seeks to track, before fees and expenses, the total return performance of the MSCI ACWI ex USA Investable Market Index (the "MSCI Index") over the long term. The MSCI Index is a free float-adjusted market capitalization index that is designed to measure the combined equity market performance of securities, across all market capitalizations, in developed and emerging market countries excluding the United States. All listed equity securities and listed securities that exhibit characteristics of equity securities, except mutual funds, exchange-traded funds, equity derivatives, limited partnerships and most investment trusts, are eligible for inclusion in the MSCI Index. Countries covered in the MSCI Index have historically included, among others, Australia, Austria, Belgium, Brazil, Canada, Chile, China, Colombia, Czech Republic, Denmark, Egypt, Finland, France, Germany, Greece, Hong Kong, Hungary, India, Indonesia, Ireland, Israel, Italy, Japan, Korea, Kuwait, Malaysia, Mexico, the Netherlands, New Zealand, Norway, Peru, Philippines, Poland, Portugal, Qatar, Saudi Arabia, Singapore, South Africa, Spain, Sweden, Switzerland, Taiwan, Thailand, Turkey, United Arab Emirates and the United Kingdom. It is not possible to invest directly in the MSCI Index. As of February 28, 2026, the MSCI Index maintains a well-balanced sector allocation, with financials, industrials and information technology representing the largest portions, although this may change from time to time. As of February 28, 2026, a significant portion of the MSCI Index comprised companies located in Japan and the United Kingdom and a significant portion of the MSCI Index's con

      

stituents are denominated in the Euro and Yen, although this may change from time to time. The Fund may also invest all or a portion of its non-U.S. equity allocation in all stocks comprising the MSCI Index in approximate proportion to their weightings in the index. However, under various circumstances, it may not be possible or practicable to purchase all stocks in those weightings. In those circumstances, the Fund may purchase a sample of the stocks in the MSCI Index in proportions expected by SSGA FM to match generally the performance of the MSCI Index as a whole.

As of March 31, 2026, approximately 43% of the Fund's total assets were allocated to domestic equity investments, and approximately 25% of the Fund's total assets were allocated to foreign equity investments. The Fund's allocations to domestic and foreign equity investments, debt securities and cash are actively managed and the percentage allocations stated as of March 31, 2026 may change from time to time. From time to time stocks are added to or removed from the S&P 500 or MSCI Index. The Fund may sell securities that are represented in the S&P 500 or MSCI Index, or purchase securities that are not yet represented in an index, in anticipation of their removal from or addition to an index.

The Fund may also, to the extent permitted by applicable law, invest in shares of one or more mutual funds (including funds advised by the Adviser) whose investment objectives and policies enable the Fund to gain investment exposure to the S&P 500 or MSCI Index.

The Fund will not incur additional management or advisory fees as a result of investing in the Global All Cap Equity ex-U.S. Portfolio because it does not charge a management fee to its investors. However, the Fund will indirectly incur its share of the Global All Cap Equity ex-U.S. Portfolio's operating expenses.

When selecting debt securities, the Adviser primarily uses active security selection to choose securities based on the perceived merits of individual issuers, although portfolio managers of different asset classes or strategies may place different emphasis on the various characteristics of a company (as identified below) during the selection process. The Adviser seeks to identify debt securities that they believe have desirable characteristics for the Fund such as:

The Adviser may consider selling a security when one of these characteristics no longer applies, when valuation becomes excessive, or when more attractive alternatives are identified.

The portion of the Fund invested in debt securities normally has a weighted average effective maturity of approximately five to ten years, but the Fund is subject to no limitation with respect to the maturities of the instruments in which it may invest.

The Adviser may also use various types of derivative instruments (such as options, interest rate futures, interest-only swaps, interest rate swaps, index swaps and credit default swaps) to gain or hedge exposure to certain types of securities or asset classes (such as securities of small capitalization companies) as an alternative to investing directly in or selling such securities or asset classes, or to manage currency exposure, yield, interest rate exposure (also known as duration) and exposure to credit quality, and to gain or hedge exposure to certain securities, indices or market segments. The Fund may hedge a portion of its foreign currency risk but is not required to do so. The Fund may also invest to a lesser extent in high yield securities (also known as below investment-grade bonds or "junk bonds"), equity and debt securities of companies or governments that are located in emerging market countries, and exchange traded funds to gain exposure to securities, including those of U.S. issuers. The Fund is permitted to invest up to 20% of its total assets (including any borrowings) in high yield securities. The Fund may invest in exchange-traded products ("ETPs"), including ETPs that pay fees to the Adviser and its affiliates for management, marketing or other services, that provide exposure to high yield securities, securities of issuers that are principally engaged in or related to the real estate industry, and to securities of issuers in emerging markets.

      

Principal Risks

The Fund is subject to the following principal risks. You could lose money by investing in the Fund. Certain risks relating to instruments and strategies used in the management of the Fund are placed first. The significance of any specific risk to an investment in the Fund will vary over time, depending on the composition of the Fund's portfolio, market conditions, and other factors. You should read all of the risk information presented below carefully, because any one or more of these risks may result in losses to the Fund. An investment in the Fund is subject to investment risks, including possible loss of principal, is not a deposit in a bank and is not insured or guaranteed by the Federal Deposit Insurance Corporation ("FDIC") or any other government agency. The Fund may not achieve its investment objective. The Fund is not intended to be a complete investment program, but rather is intended for investment as part of a diversified investment portfolio. Investors should consult their own advisers as to the role of the Fund in their overall investment programs. Except as otherwise stated, references in this section to "the Fund" may relate to the Fund, the Portfolio, or both. The risks described below may arise out of the Fund's direct investments or the Fund's investments in the Portfolio.

Market Risk: The Fund's investments are subject to changes in general economic conditions, general market fluctuations and the risks inherent in investment in securities markets. Investment markets can be volatile and prices of investments can change substantially due to various factors including, but not limited to, economic growth or recession, changes in interest rates, inflation, changes in the actual or perceived creditworthiness of issuers, and general market liquidity. The Fund is subject to the risk that geopolitical events will disrupt securities markets and adversely affect global economies and markets. Local, regional or global events such as war, military conflicts, acts of terrorism, trade policy changes or disputes, the threat or actual imposition of tariffs, natural disasters, the spread of infectious illness or other public health issues, or other events could have a significant impact on the Fund and its investments.

Equity Investing Risk: The market prices of equity securities owned by the Fund may go up or down, sometimes rapidly or unpredictably. The value of a security may decline for a number of reasons that may directly relate to the issuer and also may decline due to general industry or market conditions that are not specifically related to a particular company. In addition, equity markets tend to move in cycles, which may cause stock prices to fall over short or extended periods of time.

Non-U.S. Securities Risk: Non-U.S. securities (including depositary receipts) are subject to political, regulatory, and economic risks not present in domestic investments. There may be less information publicly available about a non-U.S. entity than about a U.S. entity, and many non-U.S. entities are not subject to accounting, auditing, legal and financial report standards comparable to those in the United States. Further, such entities and/or their securities may be subject to risks associated with currency controls; expropriation; changes in tax policy; greater market volatility; differing securities market structures; higher transaction costs; and various administrative difficulties, such as delays in clearing and settling portfolio transactions or in receiving payment of dividends. Securities traded on foreign markets may be less liquid (harder to sell) than securities traded domestically. Foreign governments may impose restrictions on the repatriation of capital to the U.S. In addition, to the extent that the Fund buys securities denominated in a foreign currency, there are special risks such as changes in currency exchange rates and the risk that a foreign government could regulate foreign exchange transactions. In addition, to the extent investments are made in a limited number of countries, events in those countries will have a more significant impact on the Fund. Investments in depositary receipts may be less liquid and more volatile than the underlying shares in their primary trading market.

Debt Securities Risk: The values of debt securities may increase or decrease as a result of the following: market fluctuations, changes in interest rates, actual or perceived inability or unwillingness of issuers, guarantors or liquidity providers to make scheduled principal or interest payments, or illiquidity in debt securities markets. To the extent that interest rates rise, certain underlying obligations may be paid off substantially slower than originally anticipated and the value of those securities may fall sharply. A rising interest rate environment may cause the value of the Fund's fixed income securities to decrease, an adverse impact on the liquidity of the Fund's fixed income securities, and increased volatility of the fixed income markets. During periods when interest rates are at low levels, the Fund's yield can be low, and the Fund may have a negative yield (i.e., it may lose money on an operating basis). To the

      

extent that interest rates fall, certain underlying obligations may be paid off substantially faster than originally anticipated. If the principal on a debt obligation is prepaid before expected, the prepayments of principal may have to be reinvested in obligations paying interest at lower rates. During periods of falling interest rates, the income received by the Fund may decline. Changes in interest rates will likely have a greater effect on the values of debt securities of longer durations. Returns on investments in debt securities could trail the returns on other investment options, including investments in equity securities. High levels of inflation and/or a significantly changing interest rate environment can lead to heightened levels of volatility and reduced liquidity.

Information Technology Sector Risk: Market or economic factors impacting information technology companies could have a major effect on the value of the Fund's investments. The value of stocks of information technology companies is particularly vulnerable to rapid changes in technology product cycles, rapid product obsolescence, government regulation and competition, both domestically and internationally, including competition from foreign competitors with lower production costs. Like other technology companies, information technology companies may have limited product lines, markets, financial resources or personnel. Stocks of technology companies and companies that rely heavily on technology, especially those of smaller, less-seasoned companies, tend to be more volatile than the overall market. Information technology companies are heavily dependent on patent and intellectual property rights, the loss or impairment of which may adversely affect profitability. Additionally, companies in the information technology sector may face dramatic and often unpredictable changes in growth rates and competition for the services of qualified personnel.

Indexing Strategy/Index Tracking Risk: The Fund is managed with an indexing investment strategy, attempting to track the performance of an unmanaged index of securities, regardless of the current or projected performance of the S&P 500 or MSCI Index or of the actual securities comprising the S&P 500 or MSCI Index. This differs from an actively-managed fund, which typically seeks to outperform a benchmark index. As a result, the Fund's performance may be less favorable than that of a portfolio managed using an active investment strategy. The structure and composition of the S&P 500 or MSCI Index will affect the performance, volatility, and risk of the S&P 500 or MSCI Index and, consequently, the performance, volatility, and risk of the Fund. While the Adviser seeks to track the performance of the S&P 500 or MSCI Index (i.e., achieve a high degree of correlation with the S&P 500 or MSCI Index), the Fund's return may not match the return of the S&P 500 or MSCI Index. The Fund incurs a number of operating expenses not applicable to the S&P 500 or MSCI Index, and may incur costs in buying and selling securities. In addition, the Fund may not be fully invested at times, generally as a result of cash flows into or out of the Fund or reserves of cash held by the Fund to meet redemptions. The Adviser may attempt to replicate the S&P 500 or MSCI Index return by investing in fewer than all of the securities in the S&P 500 or MSCI Index, or in some securities not included in the S&P 500 or MSCI Index, potentially increasing the risk of divergence between the Fund's return and that of the S&P 500 or MSCI Index.

Asset Allocation Risk: The Fund's investment performance depends upon the successful allocation by the Adviser of the Fund's assets among asset classes, geographical regions, industry sectors, and specific issuers and investments. There is no guarantee that the Adviser's allocation techniques and decisions will produce the desired results.

Below Investment-Grade Securities Risk: Lower-quality debt securities ("high yield" or "junk" bonds) are considered predominantly speculative, and can involve a substantially greater risk of default than higher quality debt securities. Issuers of lower-quality debt securities may have substantially greater risk of insolvency or bankruptcy than issuers of higher-quality debt securities. They can be illiquid, and their values can have significant volatility and may decline significantly over short periods of time. Lower-quality debt securities tend to be more sensitive to adverse news about the issuer, or the market or economy in general.

Counterparty Risk: The Fund will be subject to credit risk with respect to the counterparties with which the Fund enters into derivatives contracts, repurchase agreements, reverse repurchase agreements, and other transactions. If a counterparty fails to meet its contractual obligations, the Fund may be unable to terminate or realize any gain on the investment or transaction, or to recover collateral posted to the counterparty, resulting in a loss to the Fund. If the

      

Fund holds collateral posted by its counterparty, it may be delayed or prevented from realizing on the collateral in the event of a bankruptcy or insolvency proceeding relating to the counterparty.

Currency Hedging Risk: If the Fund enters into currency hedging transactions, any loss generated by those transactions generally should be substantially offset by gains on the hedged investment, and vice versa. While hedging can reduce or eliminate losses, it can also reduce or eliminate gains. Hedges are sometimes subject to imperfect matching between the hedging transaction and the risk sought to be hedged. There can be no assurance that the Fund's hedging transactions will be effective.

Currency Risk: The value of the Fund's assets may be affected favorably or unfavorably by currency exchange rates, currency exchange control regulations, and delays, restrictions or prohibitions on the repatriation of foreign currencies. Foreign currency exchange rates may have significant volatility, and changes in the values of foreign currencies against the U.S. dollar may result in substantial declines in the values of the Fund's assets denominated in foreign currencies.

Depositary Receipts Risk: Investments in depositary receipts may be less liquid and more volatile than the underlying securities in their primary trading market. If a depositary receipt is denominated in a different currency than its underlying securities, the Fund will be subject to the currency risk of both the investment in the depositary receipt and the underlying security. Holders of depositary receipts may have limited or no rights to take action with respect to the underlying securities or to compel the issuer of the receipts to take action. The prices of depositary receipts may differ from the prices of securities upon which they are based.

Derivatives Risk: Derivative transactions can create investment leverage and may have significant volatility. It is possible that a derivative transaction will result in a much greater loss than the principal amount invested, that changes in the value of a derivative transaction may not correlate perfectly with the underlying asset, and that the Fund may not be able to close out a derivative transaction at a favorable time or price. The counterparty to a derivatives contract may be unable or unwilling to make timely settlement payments, return the Fund's margin, or otherwise honor its obligations. A derivatives transaction may not behave in the manner anticipated by the Adviser or may not have the effect on the Fund anticipated by the Adviser.

Emerging Markets Risk: Risks of investing in emerging markets include, among others, greater political and economic instability, greater volatility in currency exchange rates, less developed securities markets, increased potential for market manipulation, possible trade barriers, currency transfer restrictions, a more limited number of potential buyers and issuers, an emerging market country's dependence on revenue from particular commodities or international aid, less governmental supervision and regulation, unavailability of currency hedging techniques, differences in auditing and financial reporting standards, less stringent investor protection and disclosure standards, less developed public health systems, and less developed legal systems. There is also the potential for unfavorable action such as expropriation, nationalization, embargoes, and acts of war. The securities of emerging market companies may trade less frequently and in smaller volumes than more widely held securities. Market disruptions or substantial market corrections may limit very significantly the liquidity of securities of certain companies in a particular country or geographic region, or of all companies in the country or region. The Fund may be unable to liquidate its positions in such securities at any time, or at a favorable price, in order to meet the Fund's obligations. These risks are generally greater for investments in frontier market countries, which typically have smaller economies or less developed capital markets than traditional emerging market countries.

Financial Sector Risk: Financial services companies are subject to extensive governmental regulation, which may limit both the amounts and types of loans and other financial commitments they can make, the interest rates and fees they can charge, the scope of their activities, the prices they can charge and the amount of capital they must maintain. Profitability is largely dependent on the availability and cost of capital funds and can fluctuate significantly when interest rates change or due to increased competition. In addition, deterioration of the credit markets generally may cause an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. Certain events in the financial sector may cause an unusually high degree of volatility in the financial markets, both domestic and foreign, and

      

cause certain financial services companies to incur large losses. Securities of financial services companies may experience a dramatic decline in value when such companies experience substantial declines in the valuations of their assets, take action to raise capital (such as the issuance of debt or equity securities), or cease operations. Credit losses resulting from financial difficulties of borrowers and financial losses associated with investment activities can negatively impact the sector. Insurance companies may be subject to severe price competition. Adverse economic, business or political developments could adversely affect financial institutions engaged in mortgage finance or other lending or investing activities directly or indirectly connected to the value of real estate.

Geographic Focus Risk: The performance of a fund that invests significantly in one or more countries or geographic regions will be closely tied to market, currency, economic, political, environmental, or regulatory conditions and developments in the countries or regions in which the fund invests, and may be more volatile than the performance of a fund that does not invest significantly in such countries or regions.

Europe: Developed and emerging market countries in Europe will be significantly affected by the fiscal and monetary controls of the Economic and Monetary Union of the European Union ("EMU"). Changes in regulations on trade, decreasing imports or exports, changes in the exchange rate of the euro and recessions among European countries may have a significant adverse effect on the economies of other European countries. In addition, one or more countries may abandon the euro and/or withdraw from the European Union ("EU"). On January 31, 2020, the United Kingdom ("UK") formally withdrew from the EU (commonly known as "Brexit"). An agreement between the UK and the EU governing their future trade relationship became effective January 1, 2021, but that agreement does not include an agreement on financial services, and it is unlikely that such agreement will be concluded. Moreover, the UK government has started a program of financial services law reform with the ultimate aim of repealing many EU financial services laws that were assimilated into UK law from January 1, 2021, and replacing them with legislation or rules made by the UK government or financial services regulators. Accordingly, uncertainty remains in certain areas as to the future relationship between the UK and the EU. Brexit has already had a significant impact on the UK, Europe, and global economies, and could continue to result in volatility and illiquidity, legal, political, economic and regulatory uncertainties and lower economic growth for these economies that could in turn have an adverse effect on the value of the Fund's investments. Any further exits from the EU, or the possibility of such exits, or the abandonment of the euro, may cause additional market disruption globally and introduce new legal and regulatory uncertainties. In addition, a number of countries in Europe have suffered terrorist attacks and additional attacks may occur in the future. Such attacks may cause uncertainty in financial markets and may adversely affect the performance of the issuers to which the Fund has exposure.

Japan: The growth of Japan's economy has historically lagged that of its Asian neighbors and other major developed economies. The Japanese economy is heavily dependent on international trade and has been adversely affected by trade tariffs, other protectionist measures, competition from emerging economies and the economic conditions of its trading partners. Japan also remains heavily dependent on oil imports, and higher commodity prices could therefore have a negative impact on the economy. The Japanese yen has fluctuated widely at times and any increase in its value may cause a decline in exports that could weaken the Japanese economy. Japan has, in the past, intervened in the currency markets to attempt to maintain or reduce the value of the yen. Japanese intervention in the currency markets could cause the value of the yen to fluctuate sharply and unpredictably and could cause losses to investors. Japan has an aging workforce and has experienced a significant population decline in recent years. Japan's labor market appears to be undergoing fundamental structural changes, as a labor market traditionally accustomed to lifetime employment adjusts to meet the need for increased labor mobility, which may adversely affect Japan's economic competitiveness. Natural disasters, such as earthquakes, volcanoes, typhoons or tsunamis, could occur in Japan or surrounding areas and could negatively affect the Japanese economy and, in turn, the Fund.

United Kingdom: The United Kingdom has one of the largest economies in Europe, and the United States and other European countries are substantial trading partners of the United Kingdom. As a result, the British economy may be impacted by changes to the economic condition of the United States and other European

      

countries. The British economy relies heavily on the export of financial services to the United States and other European countries and, therefore, a prolonged slowdown in the financial services sector may have a negative impact on the British economy. Continued governmental involvement or control in certain sectors may stifle competition in certain sectors or cause adverse effects on economic growth. In the past, the UK has been a target of terrorism. Acts of terrorism in the UK or against British interests abroad may cause uncertainty in the British financial markets and adversely affect the performance of the issuers to which the Fund has exposure.

Growth Stock Risk: The prices of growth stocks may be based largely on expectations of future earnings, and their prices can decline rapidly and significantly in reaction to negative news. Growth stocks may underperform value stocks and stocks in other broad style categories (and the stock market as a whole) over any period of time and may shift in and out of favor with investors generally, sometimes rapidly, depending on changes in market, economic, and other factors.

Hedging Risk: The success of the Fund's hedging strategies will depend, in part, upon the Adviser's ability to assess correctly the degree of correlation between the performance of the instruments used in a hedging strategy and the performance of the investments being hedged. There is no guarantee that any hedging strategy used by the Fund will be successful in hedging the subject risks. It is possible that the Fund will lose money on a hedging transaction and on the asset of the Fund that was the subject of the hedge. Hedging transactions may have the effect of creating investment leverage in the Fund.

Income Risk: The Fund's income may decline due to falling interest rates or other factors. Issuers of securities held by the Fund may call or redeem the securities during periods of falling interest rates, and the Fund would likely be required to reinvest in securities paying lower interest rates. If an obligation held by the Fund is prepaid, the Fund may have to reinvest the prepayment in other obligations paying income at lower rates.

Large Transactions Risk: To the extent a large proportion of the shares of the Fund are held by a small number of shareholders (or a single shareholder), including funds or accounts over which the Adviser has investment discretion, the Fund is subject to the risk that these shareholders will purchase or redeem Fund Shares in large amounts rapidly or unexpectedly, including as a result of an asset allocation decision made by the Adviser. In addition, a large number of shareholders collectively may purchase or redeem Fund shares in large amounts rapidly or unexpectedly (collectively, such transactions are referred to as "large shareholder transactions"). Large shareholder transactions could adversely affect the ability of the Fund to conduct its investment program.

Large-Capitalization Securities Risk: Returns on investments in securities of large companies could trail the returns on investments in securities of smaller and mid-sized companies. Larger companies may be unable to respond as quickly as smaller and mid-sized companies to competitive challenges or to changes in business, product, financial, or other market conditions. Larger companies may not be able to maintain growth at the high rates that may be achieved by well-managed smaller and mid-sized companies.

Liquidity Risk: Lack of a ready market, stressed market conditions, or restrictions on resale may limit the ability of the Fund to sell a security at an advantageous time or price or at all. Illiquid investments may trade at a discount from comparable, more liquid investments and may be subject to wide fluctuations in market value. Illiquidity of the Fund's holdings may also limit the ability of the Fund to obtain cash to meet redemptions on a timely basis. In addition, the Fund, due to limitations on investments in any illiquid investments and/or the difficulty in purchasing and selling such investments, may be unable to achieve its desired level of exposure to a certain market or sector.

Management Risk: The Fund is actively managed. The Adviser's judgments about the attractiveness, relative value, or potential appreciation of a particular sector, security, commodity or investment strategy or as to a hedging strategy may prove to be incorrect, and may cause the Fund to incur losses. There can be no assurance that the Adviser's investment techniques and decisions will produce the desired results.

Mortgage-Related and Other Asset-Backed Securities Risk: Investments in mortgage-related and other asset-backed securities are subject to the risk of significant credit downgrades, illiquidity, and defaults to a greater extent than many other types of fixed-income investments. The liquidity of mortgage-related and asset-backed securities

      

may change over time. During periods of falling interest rates, mortgage- and asset-backed securities may be called or prepaid, which may result in the Fund having to reinvest proceeds in other investments at a lower interest rate. During periods of rising interest rates, the average life of mortgage- and asset-backed securities may extend, which may lock in a below-market interest rate, increase the security's duration and interest rate sensitivity, and reduce the value of the security. Enforcing rights against the underlying assets or collateral may be difficult, and the underlying assets or collateral may be insufficient if the issuer defaults.

Real Estate Sector Risk: An investment in a real property company may be subject to risks similar to those associated with direct ownership of real estate, including, by way of example, the possibility of declines in the value of real estate, losses from casualty or condemnation, and changes in local and general economic conditions, supply and demand, interest rates, environmental liability, zoning laws, regulatory limitations on rents, property taxes, and operating expenses. Some real property companies have limited diversification because they invest in a limited number of properties, a narrow geographic area, or a single type of property.

Risk of Investment in Other Pools: If the Fund invests in another pooled investment vehicle (e.g., a mutual fund or exchange-traded fund), it is exposed to the risk that the other pool will not perform as expected and is exposed indirectly to all of the risks applicable to an investment in such other pool. The investment policies of the other pool may not be the same as those of the Fund; as a result, an investment in the other pool may be subject to additional or different risks than those to which the Fund is typically subject. The Fund bears its proportionate share of the fees and expenses of any pool in which it invests. The Adviser or an affiliate may serve as investment adviser to a pool in which the Fund may invest, leading to potential conflicts of interest. It is possible that other clients of the Adviser or its affiliates will purchase or sell interests in a pool sponsored or managed by the Adviser or its affiliates at prices and at times more favorable than those at which the Fund does so.

Small-, Mid-, and Micro-Capitalization Securities Risk: The securities of small-, mid- and micro-capitalization companies may be more volatile and may involve more risk than the securities of larger companies. These companies may have limited product lines, markets or financial resources, may lack the competitive strength of larger companies, and may depend on a few key employees. In addition, these companies may have been recently organized and may have little or no track record of success. The securities of smaller companies may trade less frequently and in smaller volumes than more widely held securities. Some securities of smaller issuers may be illiquid or may be restricted as to resale, and their values may have significant volatility. The Fund may be unable to liquidate its positions in such securities at any time, or at a favorable price, in order to meet the Fund's obligations. Returns on investments in securities of small-, mid- and micro-capitalization companies could trail the returns on investments in securities of larger companies.

Unconstrained Sector Risk: The Fund may invest a substantial portion of its assets within one or more economic sectors or industries, which may change from time to time. Greater investment focus on one or more sectors or industries increases the potential for volatility and the risk that events negatively affecting such sectors or industries could reduce returns, potentially causing the value of the Fund's Shares to decrease, perhaps significantly.

Valuation Risk: Certain portfolio holdings may be valued on the basis of factors other than market quotations. This may occur more often in times of market turmoil or reduced liquidity. There are multiple methods that can be used to value a portfolio holding when market quotations are not readily available. The value established for any portfolio holding at a point in time might differ from what would be produced using a different methodology or if it had been priced using market quotations. Portfolio holdings that are valued using techniques other than market quotations, including "fair valued" securities, may be subject to greater fluctuation in their valuations from one day to the next than if market quotations were used. In addition, there is no assurance that the Fund could sell or close out a portfolio position for the value established for it at any time, and it is possible that the Fund would incur a loss because a portfolio position is sold or closed out at a discount to the valuation established by the Fund at that time. Investors who purchase or redeem Fund Shares on days when the Fund is holding fair-valued investments may receive fewer or more shares or lower or higher redemption proceeds than they would have received if the Fund had not fair-valued the holding(s) or had used a different valuation methodology.

      

Performance

The bar chart and table below provide some indication of the risks of investing in the Fund by illustrating the variability of the Fund's returns from year-to-year and by showing how the Fund's average annual returns for the periods indicated compared with those of three broad measures of market performance. The Fund's past performance does not necessarily indicate how the Fund will perform in the future. Prior to January 28, 2017, the Fund's underlying strategies were actively managed. Current performance information for the Fund is available toll free by calling (800)-242-0134 or by visiting our website at www.statestreet.com/im.

Annual Total Returns (years ended 12/31)

  

	Returns	Quarter/Year
Highest Quarterly Return	13.52%	Q2 2020
Lowest Quarterly Return	-13.72%	Q1 2020

Average Annual Total Returns (for periods ended 12/31/25) 

	One Year	Five Years	Ten Years
Return Before Taxes	17.05 %	7.46 %	8.26 %
Return After Taxes on Distributions	14.64 %	5.64 %	6.49 %
Return After Taxes on Distributions and Sale of Fund Shares	11.12 %	5.37 %	6.05 %
S&P 500 Index (reflects no deduction for fees, expenses or taxes)	17.88 %	14.42 %	14.82 %
Bloomberg U.S. Aggregate Bond Index (reflects no deduction for fees, expenses or taxes)	7.30 %	-0.36 %	2.01 %
MSCI ACWI ex USA Investable Market Index (reflects no deduction for fees, expenses or taxes other than withholding taxes on reinvested dividends)	31.96 %	7.77 %	8.38 %

The returns for certain periods would have been lower without the effect of a contractual fee waiver and/or reimbursement.

After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes. After-tax returns depend on an investor's tax situation and may differ from those shown above, and after-tax returns are not relevant to investors who hold their shares through tax-advantaged arrangements, such as 401(k) plans or individual retirement accounts ("IRAs").The returns after taxes can exceed the returns before taxes due to an assumed tax benefit for a shareholder from realizing a capital loss on a sale of Fund shares.

Investment Adviser

SSGA FM serves as the investment adviser to the Fund. The Adviser and certain other affiliates of State Street Corporation make up State Street Investment Management.

The professionals primarily responsible for the day-to-day management of the Fund are Michael Martel, Leo Law, and Seamus Quinn. They each have served as portfolio managers of the Fund since 2019.

Michael Martel is a Managing Director of the Adviser and Head of Portfolio Management in the Americas for the Investment Solutions Group. He joined the Adviser in 1994.

      

Leo Law, CFA, is a Principal of the Adviser and a Portfolio Manager in the Investment Solutions Group. He joined the Adviser in 2016.

Seamus Quinn, CFA, CAIA, is a Principal of the Adviser and a Portfolio Manager in the Investment Solutions Group. He joined the Adviser in 2012.

Purchase and Sale of Fund Shares

Purchase Minimums

The Fund's initial and subsequent investment minimums generally are as follows, although the Fund may reduce or waive the minimums in some cases. 

	By mail	By wire/ACH	Automatic
Initial Investment	$500	$500	$25

There is no minimum for subsequent investments. You may purchase shares of the Fund by mail, bank wire, electronic funds transfer, via the Fund's website, or by telephone after you have opened an account with the Fund. You may obtain an account application from the Fund by calling 1-800-242-0134 or from the Fund's website at www.statestreet.com/im.

You may sell (redeem) all or part of your Fund shares on any business day through the following options:

By Regular Mail:

State Street Investment Management
c/o U.S. Bank Global Fund Services, LLC
P.O. Box 219238
Kansas City, MO 64121-9238

By Overnight/Registered, Express, Certified Mail:

State Street Investment Management
c/o U.S. Bank Global Fund Services, LLC
801 Pennsylvania Ave, Suite 219238
Kansas City, MO 64105-1307

Tax Information

The Fund's distributions are expected to be taxed as ordinary income, qualified dividend income and/or capital gains, unless you are investing through a tax-advantaged arrangement, such as a 401(k) plan or IRA. Any withdrawals made from such tax-advantaged arrangement may be taxable to you.

Payments to Broker-Dealers and Other Financial Intermediaries

If you purchase Fund Shares through a broker-dealer or other financial intermediary (such as a bank), the Fund, the Adviser or its affiliates may pay the financial intermediary for certain activities related to the Fund, including educational training programs, conferences, the development of technology platforms and reporting systems, or other services related to the sale or promotion of the Fund. These payments may create a conflict of interest by influencing the broker-dealer or other intermediary and your salesperson to recommend the Fund over another investment. Ask your salesperson or visit your financial intermediary's website for more information.