JJSF J and J Snack Foods Corporation

IMPORTANT NOTICE REGARDING CHANGE IN INVESTMENT POLICY

At a meeting held on November 15, 2012, the Board of Directors of the Fund approved certain changes to the Fund’s investment program. In particular, the Board approved the following:

The changes to the Fund discussed above will become effective on January 28, 2013. As a result, effective January 28, 2013, the Summary Prospectus will be supplemented and amended as follows:

The section titled “Principal Investment Strategies” beginning on page 3 of the Summary Prospectus is replaced to read as follows:

Principal Investment Strategies — The Fund pursues its objective by investing at least 80% of its assets, under normal market conditions, in 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 Security Investors, LLC, also known as Guggenheim Investments (the “Investment Manager”), to be of comparable quality (also known as “junk bonds”). These debt securities may include, without limitation: corporate bonds and notes, convertible securities, mortgage-backed and asset-backed securities, participations in and assignments of loans (such as syndicated bank loans, secured or unsecured loans, bridge loans and other loans), floating rate revolving credit facilities (“revolvers”), debtor-in-possession loans (“DIPs”) and other loans. These securities may pay fixed or variable rates of interest. The Fund also may invest in a variety of investment vehicles, principally, including closed-end funds, exchange traded funds (“ETFs”) and other mutual funds. The Fund may invest up to 10% of its net assets in securities that are in default at the time of purchase. The debt securities in which the Fund invests will primarily be domestic securities, but may also include foreign securities. Such securities may be denominated in foreign currencies. The Fund may also invest in restricted securities, which include Rule 144A securities that are eligible for resale to qualified institutional buyers.

The Fund also may seek certain exposures through derivative transactions, including foreign exchange forward contracts, futures on securities, indices, currencies and other investments; options; interest rate swaps; cross-currency swaps; total return swaps; and credit default swaps, which may also create economic leverage in the Fund. The Fund may engage in derivative transactions for speculative purposes to enhance total return, to seek to hedge against fluctuations in securities prices, interest rates or currency rates, to change the effective duration of its portfolio, to manage certain investment risks and/or as a substitute for the purchase or sale of securities or currencies. The Fund may use leverage by entering into reverse repurchase agreements and borrowing transactions (such as lines of credit) for investment purposes.

The Fund also may engage, without limit, in repurchase agreements, forward commitments, short sales and securities lending. The Fund may, without limitation, seek to obtain exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs and/or dollar rolls).

The Investment Manager, uses a process for selecting securities for purchase and sale that is based on intensive credit research and involves extensive due diligence on each issuer, region and sector. The Investment Manager also considers macroeconomic outlook and geopolitical issues.

The Investment Manager may determine to sell a security for several reasons including the following: (1) to adjust the portfolio’s average maturity, or to shift assets into or out of higher-yielding securities; (2) if a security’s credit rating has been changed or for other credit reasons; (3) to meet redemption requests; (4) to take gains; or (5) due to relative value. Under adverse market conditions (for example, in the event of credit events, where it is deemed opportune to preserve gains, or to preserve the relative value of investments), the Fund can make temporary defensive investments and may not be able to pursue its objective.

The following subsections are added to the section titled “Principal Risks” beginning on page 4 of the Summary Prospectus:

Active Trading Risk . Active trading, 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.

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, which would cause a decline in the U.S. value of the holdings of the Fund. Currency rates in foreign countries may fluctuate significantly over short periods of time for a number of reasons, including changes in interest rates and the imposition of currency controls or other political, economic and tax developments in the U.S. or abroad.

Market Risk . The market value of the securities held by the Fund may fluctuate as a result of factors affecting individual companies or other factors such as changing economic, political or financial market conditions. Moreover, changing economic, political or financial market conditions in one country or geographic region could adversely impact the market value of the securities held by the Fund in a different country or geographic region.

Repurchase Agreement and Reverse Repurchase Agreement Risk . In the event of the insolvency of the counterparty to a repurchase agreement or reverse repurchase agreement, recovery of the repurchase price owed to the Fund or, in the case of a reverse repurchase agreement, the securities sold by the Fund, may be delayed. Because reverse repurchase agreements may be considered to be the practical equivalent of borrowing funds, they constitute a form of leverage. If the Fund reinvests the proceeds of a reverse repurchase agreement at a rate lower than the cost of the agreement, entering into the agreement will lower the Fund’s yield.

Please Retain This Supplement for Future Reference

2