RYDEX SERIES FUND CLASS P | Guggenheim Managed Futures Strategy Fund

MANAGED FUTURES STRATEGY FUND

INVESTMENT OBJECTIVE

The Managed Futures Strategy Fund (the “Fund”) seeks to achieve absolute returns.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold Class P shares of the Fund.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Class P	USD ($)
Shareholder Fee, Other \| RYDEX SERIES FUND CLASS P \| Guggenheim Managed Futures Strategy Fund \| Guggenheim Managed Futures Strategy Fund Class P	none

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class P	RYDEX SERIES FUND CLASS P Guggenheim Managed Futures Strategy Fund Guggenheim Managed Futures Strategy Fund Class P
Management Fees (as a percentage of Assets)	0.95%
Distribution and Service (12b-1) Fees	0.25%
Component1 Other Expenses	0.57%
Component2 Other Expenses	0.07%
Other Expenses (as a percentage of Assets):	0.64%	^[1]
Acquired Fund Fees and Expenses	0.02%
Expenses (as a percentage of Assets)	1.86%	^[2]
Fee Waiver or Reimbursement	(0.05%)	^[3]
Net Expenses (as a percentage of Assets)	1.81%	^[2]

[1]	"Other Expenses” does not include fees paid to the Fund’s swap contract counterparties, or the management fees, performance fees, and expenses of the reference assets or trading vehicles underlying such swap contracts. These fees and expenses, which are not reflected in this Annual Fund Operating Expenses table, are embedded in the returns of the swap contracts (i.e., the fees and expenses reduce the investment return of the swap contracts) and represent an indirect cost of investing in the Fund.
[2]	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver in this fee table may not correlate to the expense ratios in the Fund’s financial highlights and financial statements because the financial highlights and financial statements reflect only the operating expenses of the Fund and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in certain underlying investment companies.
[3]	The Advisor has contractually agreed to waive the management fee it receives from the Fund in an amount equal to the management fee paid to the Advisor by the Subsidiary. This undertaking will continue in effect for so long as the Fund invests in the Subsidiary, and may be terminated only with the approval of the Fund’s Board of Trustees.

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 redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be:

Expense Example - Class P	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
RYDEX SERIES FUND CLASS P \| Guggenheim Managed Futures Strategy Fund \| Guggenheim Managed Futures Strategy Fund Class P \| USD ($)	184	569	980	2,127

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 the Total Annual Fund Operating Expenses or the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 21% of the average value of its portfolio. The Fund’s portfolio turnover rate is calculated without regard to cash instruments and most derivatives. If such instruments were included, the Fund’s portfolio turnover rate might be significantly higher.

PRINCIPAL INVESTMENT STRATEGIES

The Fund seeks to achieve absolute returns. The Fund intends to invest in multiple proprietary and third-party investment strategies that seek to identify and profit from upcoming movements in any combination of global fixed income, currency, commodity, or equity markets.

The strategies maybe quantitative or fundamental in nature, and may use market data and macroeconomic analysis to determine positions. The proprietary strategies may range from broad strategies that seek to provide exposure to all markets to focused strategies that seek to provide exposure to a single asset class, sector, or market.

The Fund generally will take a long position in a particular asset class, sector or market that the Advisor expects to rise in value and generally will take a short position in a particular asset class, sector or market that the Advisor expects to fall in value. The Fund may also take a long position in a particular asset class, sector or market that the Advisor expects to fall in value and may also take a short position in a particular asset class, sector, or market that the Advisor expects to rise in value to manage the risk of the Fund’s positions and strategies.

The Advisor sets both the long-term strategic weights across individual strategies, or group of strategies, as well as short-term tactical weightings, which may deviate from long-term strategic weights due to short-term market risks or opportunities. The Advisor will employ both quantitative and qualitative methods to assess and manage the level of risk and to seek to improve returns of the Fund over time. The Advisor in its discretion may establish long positions in excess of its short positions, and short positions in excess of its long positions; however, the Fund’s short positions will be fully covered consistent with applicable law at all times.

The estimated risk of each position as measured by volatility, relative strengths of signals, certain macroeconomic views of the Advisor, and other factors, may be used to determine the relative size of positions. Risk-management strategies may be employed and seek to manage risk, improve returns over time, and mitigate declines in the market price of the Fund.

The Fund will seek to implement its investment strategies by investing in: commodity, currency, equity, fixed income and other futures, forwards, options, and options on futures; exchange-traded funds (“ETFs”); other pooled investment vehicles that provide exposure to the commodity, currency, equity and fixed income futures markets; commodity, currency, and financial-linked instruments, such as swap agreements; exchange-traded notes (“ETNs”); and common stock. Certain of the ETFs and pooled investment vehicles in which the Fund may invest are managed and serviced by the Advisor and/or its affiliates. The Fund may purchase and sell options and futures contracts and swap agreements. Certain of the Fund's investments may expose the Fund to the risks of investing in emerging market countries.

The Fund’s derivatives investments will be used both to obtain exposure to the commodity, currency, equity, and fixed income markets and to manage risk and limit exposure created by certain of the Fund’s investments. Certain of the Fund’s derivatives investments may be traded in the over-the-counter (“OTC”) market. The Fund also intends to enter into short sales and invest in short positions of certain investments.

The Fund expects, under normal circumstances, to buy debt securities to collateralize its derivatives investments, for liquidity purposes, or to enhance yield. The Fund may hold a diversified portfolio of fixed instruments of varying maturities, but that have an average duration of less than one year. In particular, the Fund may hold, without limitation, government money market instruments, such as U.S. Treasury securities and U.S. government agency discount notes and bonds with maturities of two years or less. In addition, the Fund may invest, without limitation, in bank obligations, which may include certificates of deposit, commercial paper, asset-backed commercial paper, unsecured bank promissory notes, bank loans, bankers’ acceptances, and time deposits. The Fund may also invest, without limitation, in other short-term instruments, such as loan participations, commercial paper, and repurchase agreements. The Fund will enter into repurchase agreements only with counterparties that are deemed to present acceptable credit risks. Bank obligations may be issued or backed by U.S. banks or be U.S. dollar-denominated obligations issued or guaranteed by foreign banks.

The Fund may invest, without limitation, in U.S. dollar-denominated investment grade debt securities, and may invest no more than 20% of assets in high yield securities, which are debt securities that are rated below investment grade by nationally recognized statistical rating organizations, or are unrated securities that the Advisor believes are of comparable quality. The Fund also may invest, without limitation, in mortgage-backed securities or in other asset-backed securities, including to-be-announced transactions. The Fund may invest, without limitation, in U.S. dollar-denominated debt securities of foreign issuers, including emerging market issuers, and may invest up to 10% of its assets in sovereign and corporate debt securities denominated in foreign currencies. The Advisor may attempt, but is not obligated, to reduce foreign currency exchange rate risk by entering into contracts with banks, brokers or dealers to purchase or sell securities or foreign currencies at a future date (“forward contracts”). The Fund also may invest up to 25% of its assets in municipal securities.

The Fund may invest a portion of its assets, and at times, a substantial portion of its assets, in other short-term fixed-income investment companies advised by the Advisor, or an affiliate of the Advisor, for various purposes, including for liquidity management purposes (e.g., to increase yield on liquid investments used to collateralize derivatives positions) or when such investment companies present a more cost-effective investment option than direct investments in the underlying securities. Investments in these investment companies will significantly increase the portfolio’s exposure to certain other asset categories, including: (i) a broad range of high yield, high risk debt securities rated below the top four long-term rating categories by a nationally recognized statistical rating organization or, if unrated, determined by the Advisor to be of comparable quality (also known as “junk bonds”); (ii) securities issued by the U.S. government or its agencies and instrumentalities; (iii) collateralized loan obligations (“CLOs”), other asset-backed securities (including mortgage-backed securities) and similarly structured debt investments; and (iv) other short-term fixed income securities. Such investments will expose the Fund to the risks of these asset categories and increases or decreases in the value of these investments may cause the Fund to deviate from its investment objective.

Under normal circumstances, the Fund will invest at least 80% of its net assets, plus any borrowings for investment purposes, in “managed futures.” For these purposes, managed futures are investments in commodity, currency, equity, and fixed income futures, and financial-linked instruments, as well as other instruments that in combination have economic characteristics similar or equivalent to those of commodity, currency, equity, and fixed income futures contracts. This is a non-fundamental policy that can be changed by the Fund upon 60 days’ prior notice to shareholders.

The Fund may invest up to 25% of its total assets in a wholly-owned and controlled Cayman Islands subsidiary (the “Subsidiary”) as measured at the end of every quarter of the Fund's taxable year. The Subsidiary is advised by the Advisor and has the same investment objective as the Fund. Unlike the Fund, however, the Subsidiary may invest to a greater extent in commodity-linked derivative instruments. The Subsidiary’s investments in such instruments are subject to limits on leverage imposed by the 1940 Act. The Fund’s investment in the Subsidiary is expected to provide the Fund with an effective means of obtaining exposure (long or short) to the investment returns of global commodities markets.

In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. Because the Fund seeks to gain exposure to different industries and sectors in the economy, from time to time, the Fund may invest a significant percentage of its assets in issuers in one or more groups of industries or sectors of the economy. While the Fund’s sector and industry exposure may vary over time, as of March 31, 2019, the Fund has significant exposure to the Financials Sector and Information and Technology Sector, as each sector is defined by the Global Industry Classification Standard, a widely recognized industry classification methodology developed by MSCI, Inc. and Standard & Poor’s Financial Services LLC. The Fund is non-diversified and, therefore, may invest a greater percentage of its assets in a particular issuer in comparison to a diversified fund.

PRINCIPAL RISKS

As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money. In addition to this risk, the Fund is subject to the principal risks described below.

ASSET-BACKED AND MORTGAGE-BACKED SECURITIES RISK—Through its investments in other investment companies, the Fund may have exposure to asset-backed securities, including mortgage-backed securities and structured finance investments. Investors in these securities generally receive payments that are part interest and part return of principal. These payments may vary based on the rate at which the underlying borrowers pay off their loans. Some asset-backed securities, including mortgage-backed securities, may have structures that make their reaction to interest rates and other factors difficult to predict, making their prices very volatile and they are subject to liquidity risk.

BANK OBLIGATIONS RISK—The Fund’s investments in bank obligations may expose it to adverse developments in or related to the banking industry. The activities of U.S. and most foreign banks are subject to comprehensive regulations, which, in the case of U.S. regulations, have undergone substantial changes in the past decade. The enactment of new legislation or regulations, as well as changes in interpretation and enforcement of current laws, may affect the manner of operations and profitability of domestic and foreign banks. Banks may be particularly susceptible to certain economic factors, such as interest rate changes and adverse developments in the real estate markets. Fiscal and monetary policy and general economic cycles can affect the availability and cost of funds, loan demand and asset quality and thereby impact the earnings and financial conditions of banks. Obligations of foreign banks, including Yankee obligations, are subject to the same risks that pertain to domestic issuers, notably credit risk and market risk, but are also subject to certain additional risks such as adverse foreign political and economic developments, the extent and quality of foreign government regulation of the financial markets and institutions, foreign withholding taxes and other sovereign action such as nationalization or expropriation.

CLO RISK—Through its investments in other investment companies, the Fund may have exposure to CLOs. A CLO is a trust typically collateralized by a pool of loans, which may include, among others, domestic and foreign senior secured loans, senior unsecured loans, and subordinate corporate loans, including loans that may be rated below investment grade or equivalent unrated loans. The cash flows from the trust are split into two or more portions, called tranches, varying in risk and yield. CLO tranches can experience substantial losses due to actual defaults, increased sensitivity to defaults due to collateral default and disappearance of protecting tranches, market anticipation of defaults, as well as aversion to CLO securities as a class. The risks of an investment in a CLO depend largely on the type of the collateral securities and the class of the CLO in which the Fund invests.

COMMODITY EXPOSURE RISK—The Fund may have investment exposure to the commodities markets and one or more sectors of the commodities markets, which may subject the Fund to greater volatility than investments in traditional securities, such as stocks and bonds. Volatility in the commodities markets may be caused by changes in overall market movements, commodity index volatility, domestic and foreign political and economic events and policies, war, acts of terrorism, changes in domestic or foreign interest rates and/or investor expectations concerning interest rates, domestic and foreign inflation rates, investment and trading activities of mutual funds, hedge funds and commodities funds, and factors affecting a particular industry or commodity, such as drought, floods, weather, livestock disease, embargoes, tariffs and other regulatory developments, or supply and demand disruptions. The prices of energy, industrial metals, precious metals, agriculture and livestock sector commodities may fluctuate widely due to factors such as changes in value, supply and demand and governmental regulatory policies. Because the Fund’s performance may be linked to the performance of volatile commodities, investors should be willing to assume the risks of potentially significant fluctuations in the value of the Fund’s shares.

COMMODITY-LINKED DERIVATIVES INVESTMENT RISK—The Fund may invest directly and indirectly in commodity-linked derivative instruments. The value of a commodity-linked derivatives investment typically is based upon the price movements of a physical commodity (such as heating oil, livestock, or agricultural products), a commodity futures contract or commodity index, or some other readily measurable economic variable dependent upon changes in the value of commodities or the commodities markets. The value of these securities will rise or fall in response to changes in the underlying commodity or related benchmark or investment. These securities expose the Fund economically to movements in commodity prices. The Fund’s investment in commodity-related investment products may lead to losses in excess of the Fund’s investment in such products. Such losses can significantly and adversely affect the net asset value ("NAV") of the Fund and, consequently, a shareholder’s interest in the Fund.

COUNTERPARTY CREDIT RISK—The Fund may invest in financial instruments involving counterparties that attempt to gain exposure to a particular group of securities, index or asset class without actually purchasing those securities or investments, or to hedge a position. The Fund’s use of such financial instruments, including swap agreements, involves risks that are different from those associated with ordinary portfolio securities transactions. For example, the Fund is exposed to the risk that the counterparty may be unwilling or unable to make timely payments to meet its contractual obligations or may fail to return holdings that are subject to the agreement with the counterparty. If the counterparty becomes bankrupt or defaults on its payment obligations to the Fund, the Fund may not receive the full amount that it is entitled to receive. If this occurs, the value of your shares in the Fund will decrease.

CREDIT RISK—The Fund could lose money if the debt securities or other instruments in which it invests decline in price, or the issuer or guarantor of such instrument fails to pay interest or principal when due because the issuer or guarantor of the instrument experiences an actual or perceived decline in its financial status. Generally, credit risk is increased when a portfolio security is downgraded or the perceived creditworthiness of the issuer or guarantor deteriorates, though the effect of any credit rating downgrade can be uncertain. To the extent the Fund invests in below investment grade instruments, it will be exposed to a greater amount of credit risk than a fund which only invests in investment grade securities. In addition, to the extent the Fund uses credit derivatives, such use will expose it to additional risk in the event that the bonds underlying the derivatives default. The degree of credit risk depends on the issuer’s or guarantor’s financial condition and on the terms of the instruments.

CURRENCY RISK—The Fund’s indirect and direct exposure to foreign currencies subjects the Fund to the risk that those currencies will decline in value relative to the U.S. dollar, or, in the case of short positions, that the U.S. dollar will decline in value relative to the currency being hedged. The Fund also may incur transaction costs in connection with conversions between various currencies. The Fund may attempt to, but is not obligated to, hedge its currency exposure. However, currency hedging strategies may not effectively eliminate all currency risk.

DERIVATIVES RISK—The Fund’s investments in derivatives may pose risks in addition to and greater than those associated with investing directly in securities or other investments, including risks relating to leverage, imperfect correlations with underlying investments or the Fund’s other portfolio holdings, high price volatility, lack of availability, counterparty credit, liquidity, valuation and legal restrictions. Their use is a highly specialized activity that involves investment techniques and risks different from those associated with ordinary portfolio securities transactions. If the Advisor is incorrect about its expectations of market conditions, the use of derivatives could also result in a loss, which in some cases may be unlimited. Certain risks are specific to the derivatives in which the Fund invests.

SWAP AGREEMENTS RISK—Swap agreements are contracts among the Fund and a counterparty to exchange the return of the pre-determined underlying investment (such as the rate of return of the underlying index). Swap agreements may be negotiated bilaterally and traded OTC between two parties or, in some instances, must be transacted through a futures commission merchant and cleared through a clearinghouse that serves as a central counterparty. Risks associated with the use of swap agreements are different from those associated with ordinary portfolio securities transactions, due in part to the fact they could be considered illiquid and many swaps trade on the OTC market. Swaps are particularly subject to counterparty credit, correlation, valuation, liquidity and leveraging risks. Certain standardized swaps are subject to mandatory central clearing. Central clearing is expected to reduce counterparty credit risk and increase liquidity, but central clearing does not make swap transactions risk-free.

FUTURES CONTRACTS RISK—Futures contracts are typically exchange-traded contracts that call for the future delivery of an asset at a certain price and date, or cash settlement of the terms of the contract. Risks of futures contracts may be caused by an imperfect correlation between movements in the price of the instruments and the price of the underlying securities. In addition, there is the risk that the Fund may not be able to enter into a closing transaction because of an illiquid market. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Advisor, thus limiting the ability to implement the Fund’s strategies. Futures markets are highly volatile and the use of futures may increase the volatility of the Fund’s NAV. Futures also are subject to leverage risks and to liquidity risk.

OPTIONS CONTRACTS RISK—Options or options on futures contracts give the holder of the option the right to buy (or to sell) a position in a security or in a contract to the writer of the option, at a certain price. They are subject to correlation risk because there may be an imperfect correlation between the options and the securities markets that cause a given transaction to fail to achieve its objectives. The successful use of options depends on the Advisor’s ability to correctly predict future price fluctuations and the degree of correlation between the options and securities markets. Exchanges can limit the number of positions that can be held or controlled by the Fund or the Advisor, thus limiting the ability to implement the Fund’s strategies. Options also are particularly subject to leverage risk and can be subject to liquidity risk.

EARLY CLOSING RISK—The Fund is subject to the risk that unanticipated early closings of securities exchanges and other financial markets may result in the Fund’s inability to buy or sell securities or other financial instruments on that day and may cause the Fund to incur substantial trading losses.

EMERGING MARKETS RISK—The Fund’s investments may have exposure to emerging markets. Emerging markets can be subject to greater social, economic, regulatory, and political uncertainties and can be extremely volatile because they are countries or markets with low- to middle-income economies as classified by the World Bank, and other countries or markets with similar characteristics as determined by the Advisor.

EQUITY RISK—The Fund is subject to the risk that the value of the equity securities and equity-based derivatives in the Fund’s portfolio will decline due to volatility in the equity market caused by general market and economic conditions, perceptions regarding particular industries represented in the equity market, or factors relating to specific companies to which the Fund has investment exposure.

EXCHANGE-TRADED NOTES (ETNs) RISK—The value of an ETN may be influenced by time to maturity, level of supply and demand for the ETN, volatility and lack of liquidity in underlying commodities or securities markets, changes in the applicable interest rates, changes in the issuer's credit rating and economic, legal, political or geographic events that affect the referenced commodity or security. The Fund’s decision to sell its ETN holdings also may be limited by the availability of a secondary market. If the Fund must sell some or all of its ETN holdings and the secondary market is weak, it may have to sell such holdings at a discount. ETNs also are subject to counterparty credit risk and fixed income risk.

FOREIGN ISSUER EXPOSURE RISK—The Fund may invest in securities of foreign companies directly, or in financial instruments that are indirectly linked to the performance of foreign issuers. The Fund’s exposure to foreign issuers and investments in foreign securities are subject to additional risks in comparison to U.S. securities and U.S. issuers, including currency fluctuations, adverse political and economic developments, unreliable or untimely information, less liquidity, limited legal recourse and higher transactional costs.

HIGH YIELD AND UNRATED SECURITIES RISK—The Fund’s exposure to higher yielding, below investment grade and unrated high risk debt securities (commonly known as “junk bonds”) may present additional risk because these securities may be less liquid and present greater credit risk than investment grade bonds. The price of high yield securities tends to be subject to greater volatility due to issuer-specific operating results and outlook and to real or perceived adverse economic and competitive industry conditions. This exposure may be obtained through investments in other investment companies.

INCOME RISK—Falling interest rates may cause the Fund’s income to decline.

INTEREST RATE RISK—The market value of fixed income investments and related financial instruments will change in response to interest rate changes. During periods of falling interest rates, the values of fixed income securities generally rise. Conversely, during periods of rising interest rates, the values of such securities generally decline. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value. The Fund may invest in variable and floating rate securities. Although these instruments are generally less sensitive to interest rate changes than fixed rate instruments, the value of floating rate and variable securities may decline if their interest rates do not rise as quickly, or as much, as general interest rates. Changes in government or central bank policy, including changes in tax policy or changes in a central bank’s implementation of specific policy goals, may have a substantial impact on interest rates, and could have an adverse effect on prices for fixed income securities and on the performance of the Fund. There can be no guarantee that any particular government or central bank policy will be continued, discontinued or changed, nor that any such policy will have the desired effect on interest rates.

INVESTMENT IN INVESTMENT VEHICLES RISK—Investing in other investment vehicles, including ETFs, closed-end funds, affiliated short-term fixed income funds and other mutual funds, subjects the Fund to those risks affecting the investment vehicle, including the possibility that the value of the underlying securities held by the investment vehicle could decrease or the portfolio becomes illiquid. Moreover, the Fund and its shareholders will incur its pro rata share of the underlying vehicles’ expenses, which will reduce the Fund’s performance. In addition, investments in an ETF are subject to, among other risks, the risk that the ETF’s shares may trade at a discount or premium relative to the net asset value of the shares and the listing exchange may halt trading of the ETF’s shares.

INVESTMENT IN LOANS RISK—Investing in loans involves special types of risks, including credit risk, interest rate risk, counterparty risk and prepayment risk. Loans may offer a fixed or floating interest rate. Loans are often generally below investment grade and may be unrated. Loans may be difficult to value and some can be subject to liquidity risk.

INVESTMENT IN THE SUBSIDIARY RISK—The Subsidiary is not registered under the 1940 Act and, unless otherwise noted in this Prospectus, is not subject to all of the investor protections of the 1940 Act. Thus, the Fund, as the sole investor in the Subsidiary, will not have all of the protections offered to shareholders of registered investment companies. By investing in the Subsidiary, the Fund is exposed to the risks of the Subsidiary’s investments, which in turn will be exposed primarily to the risks of investing in the commodities markets. The Fund also will incur its pro rata share of the expenses of the Subsidiary. In addition, changes in the laws of the United States or the Cayman Islands, under which the Fund and the Subsidiary, respectively, are organized, could result in the inability of the Fund and/or the Subsidiary to operate as intended and could negatively affect the Fund and its shareholders.

INVESTMENT TECHNIQUE RISK—Some investment techniques of the Fund, such as its use of derivatives and other commodity-linked financial instruments to seek to achieve its investment objective, may be considered aggressive. These instruments may increase the volatility of the Fund and may involve a small investment of cash relative to the magnitude of the risk assumed. Such investment techniques may not consistently produce desired results and may be limited by legislative, regulatory, or tax developments.

ISSUER SPECIFIC RISK—The value of a security may increase or decrease for a number of reasons which directly relate to the issuer. For example, the perceived poor management performance, financial leverage or reduced demand of an issuer’s goods or services may contribute to a decrease in the value of a security. A decrease in the value of the securities, held by the Fund, of an issuer or guarantor of a debt instrument may cause the value of your investment in the Fund to decrease.

LARGE-CAPITALIZATION SECURITIES RISK—The Fund is subject to the risk that large-capitalization stocks may underperform other segments of the equity market or the equity market as a whole. Larger, more established companies may be unable to respond quickly to new competitive challenges such as changes in technology and may not be able to attain the high growth rate of smaller companies, especially during extended periods of economic expansion.

LIQUIDITY AND VALUATION RISK—In certain circumstances, it may be difficult for the Fund to purchase and sell a particular investment within a reasonable time at a fair price, or the price at which it has been valued by the Advisor for purposes of the Fund's NAV, causing the Fund to be less liquid. While the Fund intends to invest in liquid securities and financial instruments, under certain market conditions, such as when trading in a particular investment has been halted temporarily by an exchange because the maximum price change of that investment has been realized, it may be difficult or impossible for the Fund to liquidate such investments. In addition, the ability of the Fund to assign an accurate daily value to certain investments may be difficult, and the Advisor may be required to fair value the investments.

MARKET RISK—The market value of the securities and derivatives held by the Fund may fluctuate over time in response to factors affecting individual companies or other factors such as changing economic, political or financial markets.

MID-CAPITALIZATION SECURITIES RISK—The Fund is subject to the risk that medium-capitalization stocks may underperform other segments of the equity market or the equity market as a whole. Securities of medium-capitalization companies may experience more price volatility, greater spreads between their bid and ask prices, lower trading volumes, and cyclical or static growth prospects. Medium-capitalization companies often have limited product lines, markets or financial resources, and may therefore be more vulnerable to adverse developments than larger capitalization companies.

NON-DIVERSIFICATION RISK—The Fund is considered non-diversified and can invest a greater portion of its assets in securities of individual issuers than a diversified fund. As a result, changes in the market value of a single issuer's securities could cause greater fluctuations in the value of Fund shares than would occur in a diversified fund.

OTC TRADING RISK—Certain of the derivatives in which the Fund may invest may be traded (and privately negotiated) in the OTC market. While the OTC derivatives market is the primary trading venue for many derivatives, it is largely unregulated and provides for less transparency than a national securities or commodities exchange. As a result and similar to other privately negotiated contracts, the Fund is subject to counterparty credit risk with respect to such derivatives contracts.

PORTFOLIO TURNOVER RISK—The Fund’s strategy may frequently involve buying and selling portfolio securities, which may lead to increased costs to the Fund. Portfolio turnover risk may cause the Fund’s performance to be less than you expect.

PREPAYMENT AND EXTENSION RISK—Prepayment risk is the risk that the principal on mortgage-backed securities, other asset-backed securities or any debt security with an embedded call option may be prepaid at any time, which could reduce the security’s yield and market value. In the case of prepayment risk, if the investment is converted, prepaid or redeemed before maturity, the portfolio manager may not be able to invest the proceeds in other investments providing as high a level of income, resulting in a reduced yield to the Fund. The rate of prepayments tends to increase as interest rates fall, which could cause the average maturity of the portfolio to shorten. Conversely, extension risk is the risk that an unexpected rise in interest rates will extend the life of a mortgage- or asset-backed security beyond the prepayment time. If the Fund’s investments are locked in at a lower interest rate for a longer period of time, the portfolio manager may be unable to capitalize on securities with higher interest rates or wider spreads.

REPURCHASE AGREEMENT RISK—The Fund’s investment in repurchase agreements may be subject to market and credit risk with respect to the collateral securing the repurchase agreements. Investments in repurchase agreements also may be subject to the risk that the market value of the underlying obligations may decline prior to the expiration of the repurchase agreement term.

SECTOR RISK—The Fund is subject to the Sector Risks described below.

Financials Sector Risk. The Fund's investments are exposed to issuers conducting business in the Financials Sector. The Financials Sector includes companies involved in banking, thrifts and mortgage finance, specialized finance, consumer finance, asset management and custody banks, investment banking and brokerage and insurance. It also includes the Financial Exchanges & Data and Mortgage Real Estate Investment Trusts ("REITs") sub-industries. Certain financial sector companies serve as counterparties with which the Fund may enter into derivatives agreements or other similar contractual arrangements. The Fund is subject to the risk that the securities of such issuers will underperform the market as a whole due to legislative or regulatory changes, adverse market conditions and/or increased competition affecting the Financials Sector, which may adversely affect a company's ability to fulfill its obligations as a financial counterparty. Companies operating in the Financials Sector are subject to extensive government regulation, which may limit the financial commitments they can make and the interest rates and fees they can charge. 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.

Information Technology Sector Risk. The Fund's investments are exposed to issuers conducting business in the Information Technology Sector. The Information Technology Sector includes companies that offer software and information technology services, manufacturers and distributors of technology hardware and equipment such as communications equipment, cellular phones, computers and peripherals, electronic equipment and related instruments and semiconductors. The Fund is subject to the risk that the securities of such issuers will underperform the market as a whole due to legislative or regulatory changes, adverse market conditions and/or increased competition affecting the Information Technology Sector. The prices of the securities of companies operating in the Information Technology Sector are closely tied to market competition, increased sensitivity to short product cycles and aggressive pricing, and problems with bringing products to market.

SHORT SALES AND SHORT EXPOSURE RISK—Short selling a security involves selling a borrowed security with the expectation that the value of that security will decline, so that the security may be purchased at a lower price when returning the borrowed security. A short exposure through a derivative exposes the Fund to counterparty credit risk and leverage risk. The risk for loss on a short sale or other short exposure is greater than a direct investment in the security itself because the price of the borrowed security may rise, thereby increasing the price at which the security must be purchased. The risk of loss through a short sale or other short exposure may in some cases be theoretically unlimited. Government actions also may affect the Fund’s ability to engage in short selling.

SMALL-CAPITALIZATION SECURITIES RISK—The Fund is subject to the risk that small-capitalization stocks may underperform other segments of the equity market or the equity market as a whole. Small-capitalization companies may be more vulnerable than larger, more established organizations to adverse business or economic developments. Securities of small-capitalization companies may experience much more price volatility, greater spreads between their bid and ask prices, significantly lower trading volumes, and cyclical or static growth prospects. Small-capitalization companies often have limited product lines, markets or financial resources, and may therefore be more vulnerable to adverse developments than larger capitalization companies.

TAX RISK—To qualify for the favorable U.S. federal income tax treatment generally available to regulated investment companies, the Fund must derive at least 90% of its gross income for each taxable year from sources generating “qualifying income.” Income derived from direct and certain indirect investments in commodities is not qualifying income. More information about this requirement can be found in the SAI. The Fund’s investment in the Subsidiary is expected to provide the Fund with exposure to the commodities markets within the limitations of the federal tax requirements of Subchapter M of the Internal Revenue Code of 1986, as amended (the “Internal Revenue Code”). The Fund has received a private letter ruling from the Internal Revenue Service that concluded that the income attributable to the Fund's investment in the Subsidiary will be qualifying income. The Internal Revenue Service has recently issued final regulations pursuant to which the “Subpart F” income (as defined in Section 951 of the Internal Revenue Code to include passive income, including income from commodity-linked derivatives) of the Fund attributable to its investment in the Subsidiary is “qualifying income” to the Fund to the extent that such income is derived with respect to the Fund’s business of investing in stock, securities or currencies. The Fund expects its “Subpart F” income attributable to its investment in the Subsidiary to be derived with respect to the Fund’s business of investing in stock, securities or currencies. Such final regulations do not adopt the requirement of the proposed regulations issued by the Internal Revenue Service in September 2016 that would have generally required the Subsidiary to distribute its income (i.e., the “Subpart F” income of the Fund attributable to its investment in the Subsidiary) each year in order for the Fund to treat that income as “qualifying income.” The Fund may rely on such final regulations for taxable years beginning after the issuance of such proposed regulations on September 28, 2016. Accordingly, the Fund expects its “Subpart F” income attributable to its investment in the Subsidiary to be treated as “qualifying income.” The Advisor intends to conduct the Fund’s investments in the Subsidiary in a manner consistent with the terms and conditions of its private letter ruling and applicable Internal Revenue Code regulations, and will monitor the Fund's investments in the Subsidiary to ensure that no more than 25% of the Fund’s assets are invested in the Subsidiary.

The Fund currently gains most of its exposure to the commodities markets through its investment in the Subsidiary, which may invest in commodity-linked derivative instruments and other similar instruments. However, to the extent the Fund invests in such instruments directly, it may be subject to the risk that such instruments will not generate qualifying income and, thus, may compromise the Fund’s ability to qualify as a regulated investment company. The Fund might generate more non-qualifying income than anticipated, might not be able to generate qualifying income in a particular taxable year at levels sufficient to meet the qualifying income test, or might not be able to determine the percentage of qualifying income it derives for a taxable year until after year-end. Failure to comply with the qualifying income test would have significant negative tax consequences to Fund shareholders. Under certain circumstances, the Fund may be able to cure a failure to meet the qualifying income test, but in order to do so the Fund may incur significant Fund-level taxes, which would effectively reduce (and could eliminate) the Fund’s returns.

TEMPORARY DEFENSIVE INVESTMENT RISK—The Advisor generally does not attempt to take defensive positions in the Fund in declining markets. Therefore, the Fund may be subject to greater losses in a declining market than a fund that does take defensive positions in declining markets.

TRADING HALT RISK—The Fund typically will hold futures contracts and short-term options. The major exchanges on which these contracts are traded, such as the Chicago Mercantile Exchange, have established limits on how much the trading price of a futures contract or option may decline over various time periods within a day, and may halt trading in a contract that exceeds such limits. If a trading halt occurs, the Fund may temporarily be unable to purchase or sell certain securities, futures contracts or options. Such a trading halt near the time the Fund prices its shares may prevent the Fund from achieving its investment objective.

PERFORMANCE INFORMATION

The following bar chart shows the performance of the Class P shares of the Fund from year to year. The variability of performance over time provides an indication of the risks of investing in the Fund. The following table shows the performance of the Class P shares of the Fund as an average over different periods of time in comparison to the performance of a broad-based market index. Effective upon the close of business on April 30, 2015, the Fund converted its existing Class H shares to Class P shares. For periods prior to May 1, 2015, the performance shown reflects the performance of Class H shares. The returns shown have not been adjusted to reflect any differences in expenses between Class H shares and Class P shares. However, the Fund's Class P shares would have had annual returns substantially similar to those of the Fund's former Class H shares because they are invested in the same portfolio of securities and have a similar, if not identical, expense structure to that of Class H shares. The figures in the bar chart and table assume the reinvestment of dividends and capital gains distributions. Of course, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. The Fund’s investment objective and/or principal investment strategies changed on July 11, 2011, September 27, 2012, and January 29, 2013. Prior to January 29, 2013, the Fund sought to achieve positive absolute returns using an investment methodology based primarily on the systematic rules-based trend-following strategy of the S&P Diversified Trends Indicator^®(the “S&P DTI”). Prior to July 11, 2011, the Fund sought to provide investment results that matched, before fees and expenses, the performance of the S&P DTI. Therefore, the performance and average annual total returns shown for periods prior to January 29, 2013 may have differed had the Fund’s current investment objective and principal investment strategy been in effect during those periods.

Updated performance information is available on the Fund’s website at www.guggenheiminvestments.com or by calling 800.820.0888.



Highest Quarter Return		Lowest Quarter Return
Q1 2015	8.22%	Q2 2015	-7.36%

AVERAGE ANNUAL TOTAL RETURN (for periods ended December 31, 2018)

The after-tax returns presented in the table below are calculated using highest historical individual federal marginal income tax rates and do not reflect the impact of state and local taxes. Your actual after-tax returns will depend on your specific tax situation and may differ from those shown below. After-tax returns are not relevant to investors who hold shares of the Fund through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Average Annual Total Returns - Class P - RYDEX SERIES FUND CLASS P - Guggenheim Managed Futures Strategy Fund - Guggenheim Managed Futures Strategy Fund Class P	Label	1 Year	5 Years	10 Years
Before Taxes	Return Before Taxes	(7.96%)	(1.73%)	(3.16%)
After Taxes on Distributions	Return After Taxes on Distributions	(7.96%)	(2.86%)	(3.73%)
After Taxes on Distributions and Sales	Return After Taxes on Distributions and Sale of Fund Shares	(4.71%)	(1.78%)	(2.54%)
BofA Merrill Lynch 3-Month Treasury Bill Index	BoFA Merrill Lynch 3-Month U.S. Treasury Bill Index (reflects no deduction for fees, expenses or taxes)	1.87%	0.63%	0.37%

RYDEX SERIES FUND CLASS P | Guggenheim Multi-Hedge Strategies Fund

MULTI-HEDGE STRATEGIES FUND

INVESTMENT OBJECTIVE

The Multi-Hedge Strategies Fund (the “Fund”) seeks long-term capital appreciation with less risk than traditional equity funds.

FEES AND EXPENSES OF THE FUND

This table describes the fees and expenses that you may pay if you buy and hold Class P shares of the Fund.

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees - Class P	USD ($)
Shareholder Fee, Other \| RYDEX SERIES FUND CLASS P \| Guggenheim Multi-Hedge Strategies Fund \| Guggenheim Multi-Hedge Strategies Fund Class P	none

ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses - Class P	RYDEX SERIES FUND CLASS P Guggenheim Multi-Hedge Strategies Fund Guggenheim Multi-Hedge Strategies Fund Class P
Management Fees (as a percentage of Assets)	1.17%
Distribution and Service (12b-1) Fees	0.25%
Component1 Other Expenses	none	^[1]
Component2 Other Expenses	0.01%
Component3 Other Expenses	0.34%
Other Expenses (as a percentage of Assets):	0.35%	^[2]
Acquired Fund Fees and Expenses	0.18%
Expenses (as a percentage of Assets)	1.95%	^[3]
Fee Waiver or Reimbursement	(0.02%)	^[4]
Net Expenses (as a percentage of Assets)	1.93%	^[3]

[1]	Other Expenses of the Fund were less than 0.01% for the fiscal year ended December 31, 2018.
[2]	"Other Expenses” does not include fees paid to the Fund’s swap contract counterparties, or the management fees, performance fees, and expenses of the reference assets or trading vehicles underlying such swap contracts. These fees and expenses, which are not reflected in this Annual Fund Operating Expenses table, are embedded in the returns of the swap contracts (i.e., the fees and expenses reduce the investment return of the swap contracts) and represent an indirect cost of investing in the Fund.
[3]	The Total Annual Fund Operating Expenses and Total Annual Fund Operating Expenses After Fee Waiver in this fee table may not correlate to the expense ratios in the Fund’s financial highlights and financial statements because the financial highlights and financial statements reflect only the operating expenses of the Fund and do not include Acquired Fund Fees and Expenses, which are fees and expenses incurred indirectly by the Fund through its investments in certain underlying investment companies.
[4]	The Advisor has contractually agreed to waive the management fee it receives from the Fund in an amount equal to the management fee paid to the Advisor by the Subsidiary. This undertaking will continue in effect for so long as the Fund invests in the Subsidiary, and may be terminated only with the approval of the Fund’s Board of Trustees.

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.

Expense Example - Class P	Expense Example, with Redemption, 1 Year	Expense Example, with Redemption, 3 Years	Expense Example, with Redemption, 5 Years	Expense Example, with Redemption, 10 Years
RYDEX SERIES FUND CLASS P \| Guggenheim Multi-Hedge Strategies Fund \| Guggenheim Multi-Hedge Strategies Fund Class P \| USD ($)	196	606	1,042	2,254

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 the Total Annual Fund Operating Expenses or the Example, affect the Fund’s performance. During the most recent fiscal year, the Fund’s portfolio turnover rate was 212% of the average value of its portfolio. The Fund’s portfolio turnover rate is calculated without regard to cash instruments and most derivatives. If such instruments were included, the Fund’s portfolio turnover rate might be significantly higher.

PRINCIPAL INVESTMENT STRATEGIES

The Fund pursues multiple investment styles or mandates that correspond to investment strategies widely employed by hedge funds. The Advisor may use one or more variations of any or all of the strategies described below. The Advisor’s decision to allocate assets to a particular strategy or strategies is based on a proprietary evaluation of the strategy’s risk and return characteristics.

Long/Short Equity—Pursuant to long/short equity investment strategies, portfolio managers seek to profit from investing on both the long and short sides of equity markets;

Equity Market Neutral—Pursuant to equity market neutral investment strategies, portfolio managers seek to profit from exploiting pricing relationships between different equities or related securities while typically hedging exposure to overall equity market movements;

Fixed Income Strategies—Pursuant to fixed income long and short investment strategies, portfolio managers seek to profit from relationships between different fixed income securities or fixed income and equity securities; and leveraging long and short positions in related securities;

Merger Arbitrage—Pursuant to merger arbitrage investment strategies, portfolio managers invest simultaneously in long and short positions in both companies involved in a merger or acquisition; and

Global Macro—Pursuant to global macro strategies, portfolio managers seek to profit from changes in currencies, commodity prices, fixed income securities, equity securities, and market volatility.

Each of these investment strategies may result in a directional bias depending upon the net effect of their constituent holdings. In general, a directional bias seeks to benefit from market movements in one direction or the other, and is designed to have high (positive or negative) correlation with market returns. In contrast, a non-directional bias seeks to produce returns that are independent of market returns, resulting in a low correlation with market returns. The Advisor allocates assets to strategies that are both directional and non-directional, and expects that the positioning (long or short) of the directional strategies will vary over time.

The Fund may use leverage to the extent permitted by applicable law. The Fund’s use of directional and non-directional positions and internal investment controls result in a portfolio of assets designed to provide appropriate hedge fund portfolio characteristics as well as providing risk diversification.

The Fund may be long or short in a broad mix of financial assets including small, mid, and large-capitalization U.S. and foreign common stocks, currencies, commodities, futures, options, swap agreements, high yield securities, securities of other investment companies, American Depositary Receipts (“ADRs”), exchange-traded funds (“ETFs”), real estate investment trusts ("REITs") and corporate and sovereign debt. The Fund may write (sell) and purchase swap agreements, including credit default swap agreements. From time to time, the Fund's assets may have significant exposure to one or more market sectors.

Investments in derivative instruments, such as futures, options, and forward contracts and swap agreements, have the economic effect of creating financial leverage in the Fund’s portfolio because such investments may give rise to losses that exceed the amount the Fund has invested in those instruments. Financial leverage will magnify, sometimes significantly, the Fund’s exposure to any increase or decrease in prices associated with a particular reference asset resulting in increased volatility in the value of the Fund’s portfolio. The value of the Fund’s portfolio is likely to experience greater volatility over short-term periods. While such financial leverage has the potential to produce greater gains, it also may result in greater losses, which in some cases may cause the Fund to liquidate other portfolio investments at a loss to comply with limits on leverage and asset segregation requirements imposed by the Investment Company Act of 1940 (the "1940 Act") or to meet redemption requests. The Fund’s use of derivatives and the leveraged investment exposure created by such use are expected to be significant. Certain of the Fund’s derivatives investments may be traded in the over-the-counter (“OTC”) market. The Fund may hold U.S. government securities or cash equivalents to collateralize its derivatives positions. The Fund also may enter into repurchase agreements with counterparties that are deemed to present acceptable credit risks. The Fund may use leverage to the extent permitted by applicable law by entering into borrowing transactions (principally lines of credit) for investment purposes.

The Fund also may invest up to 25% of its total assets in a wholly-owned and controlled Cayman Islands subsidiary (the “Subsidiary”) as measured at the end of every quarter of the Fund's taxable year. The Subsidiary is advised by the Advisor, and has the same investment objective as the Fund. Unlike the Fund, however, the Subsidiary may invest to a greater extent in commodity-linked derivative instruments. The Subsidiary’s investments in such instruments are subject to limits on leverage imposed by the 1940 Act. The Fund’s investment in the Subsidiary is expected to provide the Fund with an effective means of obtaining exposure (long or short) to the investment returns of global commodities markets.

In an effort to ensure that the Fund is fully invested on a day-to-day basis, the Fund may conduct any necessary trading activity at or just prior to the close of the U.S. financial markets. Because the Fund seeks to gain exposure to different industries and sectors in the economy, from time to time, the Fund may invest a significant percentage of its assets in issuers in one or more groups of industries or sectors of the economy. While the Fund’s sector and industry exposure may vary over time, as of March 31, 2019, the Fund has significant exposure to the Financials Sector, Industrials Sector, Information and Technology Sector and Real Estate Sector, as each sector is defined by the Global Industry Classification Standard, a widely recognized industry classification methodology developed by MSCI, Inc. and Standard & Poor’s Financial Services LLC. Also, as of March 31, 2019, the Fund's investments are concentrated (i.e., more than 25% of its assets) in securities issued by companies in the Equity Real Estate Investment Trusts (REITs) Industry, a separate industry within the Real Estate Sector. The Fund is non-diversified and, therefore, may invest a greater percentage of its assets in a particular issuer in comparison to a diversified fund.

PRINCIPAL RISKS

As with all mutual funds, a shareholder is subject to the risk that his or her investment could lose money. In addition to this risk, the Fund is subject to the principal risks described below.

BORROWING RISK—The Fund may borrow for several purposes, including investment purposes (i.e., to purchase additional portfolio securities). The Fund’s borrowings, which would be in the form of loans from banks, may be on a secured or unsecured basis and at fixed or variable rates of interest. The Fund’s ability to obtain leverage through borrowings is dependent upon its ability to establish and maintain an appropriate line of credit. Borrowing also will cost the Fund interest expense and other fees. The cost of borrowing may reduce the Fund’s return. In addition to any more stringent terms imposed by a lender, the 1940 Act requires the Fund to maintain continuous asset coverage of not less than 300% with respect to all borrowings. This would allow the Fund to borrow for such purposes an amount equal to as much as 33 1/3% of the value of its total assets. The Fund will borrow only if the value of the Fund’s assets, including borrowings, is equal to at least 300% of all borrowings, including the proposed borrowing. If at any time the Fund should fail to meet this 300% coverage requirement, within three business days, the Fund will seek to reduce its borrowings to meet the requirement. The Fund may be required to dispose of portfolio investments on unfavorable terms if market fluctuations reduce its asset coverage to less than 300%.

DEPOSITARY RECEIPT RISK—The Fund may hold the securities of non-U.S. companies in the form of ADRs. The underlying securities of the ADRs in the Fund’s portfolio are subject to fluctuations in foreign currency exchange rates that may affect the value of the Fund’s portfolio. In addition, the value of the securities underlying the ADRs may change materially when the U.S. markets are not open for trading. Investments in the underlying foreign securities also involve political and economic risks distinct from those associated with investing in the securities of U.S. issuers.

FOREIGN ISSUER EXPOSURE RISK—The Fund may invest in securities of foreign companies directly, or in financial instruments that are indirectly linked to the performance of foreign issuers. The Fund’s investments in foreign securities and foreign issuers are subject to additional risks in comparison to U.S. securities and U.S. issuers, including currency fluctuations, adverse political and economic developments, unreliable or untimely information, less liquidity, limited legal recourse and higher transactional costs.

INDUSTRY CONCENTRATION RISK—The Fund expects to concentrate (i.e., invest more than 25% of its net assets) its investments in a limited number of issuers conducting business in the same industry or group of related industries. To the extent the Fund does so, the Fund is more vulnerable to adverse market, economic, regulatory, political or other developments affecting that industry or group of related industries than a fund that invests its assets more broadly. As of March 31, 2019, the Fund's investments are concentrated in securities issued by companies in the Equity Real Estate Investment Trusts (REITs) Industry. As a result of the Fund's concentration in the Equity Real Estate Investment Trusts (REITs) Industry, the Fund is subject to the risks associated with that Industry. The Equity Real Estate Investment Trusts (REITs) Industry is a separate industry within the Real Estate Sector that includes companies or trusts engaged in the acquisition, development, ownership, leasing, management and operation of: hotel and resort properties (hotel & resort REITs); office properties (office REITs); properties serving the health care industry, including hospitals, nursing homes and and assisted living properties (health care REITs); residential properties, including multi-family homes, apartments, manufactured homes and student housing properties (residential REITs); shopping malls, outlet malls and neighborhood and community shopping centers (retail REITs); and other specialized properties including storage and other properties that do not generate a majority of their revenues and income from real estate rental and leasing operations (specialized REITS). For information regarding the Fund's investments in the Equity Real Estate Investment Trusts (REITs) Industry and real estate investment trusts, see "Sector Risk" and "Real Estate Investment Trust (REIT) Risk” below.

LEVERAGING RISK—The Fund derives substantially all of its commodities exposure from its investment in derivatives and other financial instruments that provide leveraged exposure. The Fund’s investment in these instruments generally requires a small investment relative to the amount of investment exposure assumed. As a result, such investments may give rise to losses that exceed the amount invested in those instruments. The use of derivatives and other similar financial instruments are an integral part of the Fund’s investment strategy and may expose the Fund to potentially dramatic losses (or gains) in the value of a derivative or other financial instrument and, thus, in the value of the Fund's portfolio. The cost of investing in such instruments generally increases as interest rates increase, which will lower the Fund’s return. Leverage may also arise through the use of borrowings for investment purposes. To the extent the Fund purchases securities while it has outstanding borrowings, it is using leverage, i.e., using borrowed funds for investment. Leveraging will exaggerate the effect on the NAV of any increase or decrease in the market value of the Fund’s portfolio. Money borrowed for leveraging will be subject to interest costs that may or may not be recovered by appreciation of the securities purchased. The 1940 Act limits the Fund from borrowing in an amount no more than 33 ¹/₃% of its assets.

MANAGEMENT RISK—The Fund is actively managed, which means that investment decisions are made based on investment views. There is no guarantee that the investment views will produce the desired results or expected returns, causing the Fund to fail to meet its investment objective or underperform its benchmark index or funds with similar investment objectives and strategies. Furthermore, active trading that can accompany active management, also called “high turnover,” may have a negative impact on performance. Active trading may result in higher brokerage costs or mark-up charges, which are ultimately passed on to shareholders of the Fund. Active trading also may result in adverse tax consequences.

REAL ESTATE INVESTMENT TRUST ("REIT") RISK—REITs are securities that invest substantially all of their assets in real estate, trade like stocks and may qualify for special tax considerations. Investments in REITs subject the Fund to risks associated with the direct ownership of real estate. Market conditions or events affecting the overall real estate and REIT markets, such as declining property values or rising interest rates, could have a negative impact on the real estate market and the value of REITs in general. REITs may be affected by changes in the value of the underlying property owned by the trusts, economic downturns which may have a material effect on the real estate in which the REITs invest and their underlying portfolio securities. Further, REITs are dependent upon specialized management skills and may have their investments in relatively few properties, or in a small geographic area or a single property type. Failure of a company to qualify as a REIT under federal tax law may have adverse consequences to the Fund. In addition, REITs have their own expenses, and the Fund will bear a proportionate share of those expenses.

SECTOR RISK—The Fund is subject to the Sector Risks described below.

Industrials Sector Risk. The Fund's investments are exposed to issuers conducting business in the Industrials Sector. The Industrials Sector includes manufacturers and distributors of capital goods such as aerospace and defense, building projects, electrical equipment and machinery and companies that offer construction and engineering services. It also includes providers of commercial and professional services including printing, environmental and facilities services, office services and supplies, security and alarm services, human resource and employment services, research and consulting services. It also includes companies that provide transportation services. The Fund is subject to the risk that the securities of such issuers will underperform the market as a whole due to legislative or regulatory changes, adverse market conditions and/or increased competition affecting the Industrials Sector. The prices of the securities of companies operating in the Industrials Sector may fluctuate due to the level and volatility of commodity prices, the exchange value of the dollar, import controls, worldwide competition, liability for environmental damage, depletion of resources, and mandated expenditures for safety and pollution control devices.

Real Estate Sector Risk. The Fund's investments are exposed to issuers conducting business in the Real Estate Sector. The Real Estate Sector contains companies operating in real estate development and operation. It also includes companies offering real estate related services and REITs. The Fund is subject to the risk that the securities of such issuers will underperform the market as a whole due to legislative or regulatory changes, adverse market conditions and/or increased competition affecting the Real Estate Sector. The performance of companies operating in the Real Estate Sector has historically been cyclical and particularly sensitive to the overall economy and market changes, including declines in the value of real estate or, conversely, saturation of the real estate market, economic downturns and defaults by borrowers or tenants during such periods, increases in competition, possible lack of mortgage funds or other limits to accessing the credit or capital markets, and changes in interest rates.

SOVEREIGN DEBT RISK—Sovereign debt instruments are subject to the risk that a governmental entity may delay or refuse to pay interest or repay principal on its sovereign debt.

STRATEGY ALLOCATION RISK—The ability of the Fund to achieve its investment goal depends, in part, on the ability of the Advisor to allocate effectively the Fund’s assets among multiple investment strategies. There can be no assurance that the actual allocations will be effective in achieving the Fund’s investment goal or that an investment strategy will achieve its particular investment objective.

PERFORMANCE INFORMATION

The following bar chart shows the performance of the Class P shares of the Fund from year to year. The variability of performance over time provides an indication of the risks of investing in the Fund. The following table shows the performance of the Class P shares of the Fund as an average over different periods of time in comparison to the performance of a broad-based market index and the HFRX Global Hedge Fund Index. Effective upon the close of business on April 30, 2015, the Fund converted its existing Class H shares to Class P shares. For periods prior to May 1, 2015, the performance shown reflects the performance of Class H shares. The returns shown have not been adjusted to reflect any differences in expenses between Class H shares and Class P shares. However, the Fund's Class P shares would have had annual returns substantially similar to those of the Fund's former Class H shares because they are invested in the same portfolio of securities and have a similar, if not identical, expense structure to that of Class H shares. The figures in the bar chart and table assume the reinvestment of dividends and capital gains distributions. Of course, this past performance (before and after taxes) does not necessarily indicate how the Fund will perform in the future. On August 31, 2017, the Fund's principal investment strategies were revised; therefore, the performance and average annual total returns shown for periods prior to August 31, 2017 may have differed had the Fund's current principal investment strategies been in effect during those periods.

Updated performance information is available on the Fund’s website at www.guggenheiminvestments.com or by calling 800.820.0888.



Highest Quarter Return		Lowest Quarter Return
Q3 2010	4.72%	Q1 2009	-5.49%

AVERAGE ANNUAL TOTAL RETURN (for periods ended December 31, 2018)

Average Annual Total Returns - Class P - RYDEX SERIES FUND CLASS P - Guggenheim Multi-Hedge Strategies Fund - Guggenheim Multi-Hedge Strategies Fund Class P		Label	1 Year	5 Years	10 Years
Before Taxes		Return Before Taxes	(4.61%)	0.85%	1.37%
After Taxes on Distributions		Return After Taxes on Distributions	(4.67%)	0.75%	1.29%
After Taxes on Distributions and Sales		Return After Taxes on Distributions and Sale of Fund Shares	(2.73%)	0.61%	1.02%
HFRX Global Hedge Fund Index	^[1]	HFRX Global Hedge Fund Index* (reflects no deduction for fees, expenses or taxes)	(6.72%)	(0.59%)	1.53%
S&P 500 Index		S&P 500® Index (reflects no deduction for fees, expenses or taxes)	(4.38%)	8.49%	13.12%

[1]

The HFRX Global Hedge Fund Index is designed to be representative of the overall composition of the hedge fund universe. It is comprised of eight strategies; convertible arbitrage, distressed securities, equity hedge, equity market neutral, event driven, macro, merger arbitrage, and relative value arbitrage. The strategies are asset weighted based on the distribution of assets in the hedge fund industry.