XML 11 R2.htm IDEA: XBRL DOCUMENT v2.4.0.6
U.S. Government Money Market Fund (Prospectus Summary) | U.S. Government Money Market Fund
U.S. Government Money Market Fund
INVESTMENT OBJECTIVE
The U.S. Government Money Market Fund (the "Fund") seeks to provide
security of principal, high current income, and liquidity.
FEES AND EXPENSES OF THE FUND
This table describes the fees and expenses that you may pay if you
buy and hold shares of the Fund.
SHAREHOLDER FEES (fees paid directly from your investment) N/A [1]
ANNUAL FUND OPERATING EXPENSES (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses
U.S. Government Money Market Fund
Money Market Class Shares
Management Fees 0.50%
Distribution and Shareholder Service (12b-1) Fees none
Other Expenses 0.41%
Total Annual Fund Operating Expenses 0.91%
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 (USD $)
Expense Example, With Redemption, 1 Year
Expense Example, With Redemption, 3 Years
Expense Example, With Redemption, 5 Years
Expense Example, With Redemption, 10 Years
U.S. Government Money Market Fund Money Market Class Shares
93 290 504 1,120
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
Total 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 0% of the average value of its portfolio. However, the Fund's portfolio
turnover rate is calculated without regard to cash instruments or derivatives.
If such instruments were included, the Fund's portfolio turnover rate might be
significantly higher.
PRINCIPAL INVESTMENT STRATEGIES
The Fund invests primarily in money market instruments issued or guaranteed
as to principal and interest by the U.S. government, its agencies or
instrumentalities, and enters into repurchase agreements collateralized fully by
U.S. government securities. The Fund also may invest in other securities that
are determined to be "Eligible Securities" as defined in Rule 2a-7 of the
Investment Company Act of 1940 (the "1940 Act"), including, but not limited
to Eurodollar Time Deposits, securities issued by the International Bank for
Reconstruction and Development (also known as The World Bank), and high-quality
commercial paper certificates of deposit, and short-term corporate bonds. The
Fund operates in compliance with U.S. Securities and Exchange Commission (the
"SEC") rules, including Rule 2a-7, which impose certain liquidity, maturity and
diversification requirements on all registered money market funds. All securities
purchased by the Fund must have remaining maturities of 397 days or less, and
must be found by the Advisor to represent minimal credit risk and be of eligible
quality.

Under normal circumstances, the Fund will invest at least 80% of its net assets,
plus any borrowings for investment purposes, in government securities as defined
by Section 2(a)(16) of the 1940 Act (and derivatives thereof). Section 2(a)(16)
of the 1940 Act defines "government security" to mean any security issued or
guaranteed as to principal or interest by the United States, or by a person
controlled or supervised by and acting as an instrumentality of the government
of the United States pursuant to authority granted by the Congress of the United
States; or any certificate of deposit for any of the foregoing.
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 a
number of additional risks that may affect the value of its shares, including:

Credit Risk - The Fund could lose money if the issuer or guarantor of a debt
instrument in which it invests becomes unwilling or unable to make timely
principal and/or interest payments, or to otherwise meet its obligations.

Income Risk - Income Risk involves the potential for decline in the Fund's yield
(the rate of dividends the Fund pays) in the event of declining interest rates.

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.

Repurchase Agreement Risk - The Fund's investment in repurchase agreements
may be subject to market and credit risk with respect to the repurchase agreement
counterparty and underlying 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.

Stable Price Per Share Risk - The Fund's assets are valued using the amortized
cost method, which enables the Fund to maintain a stable price of $1.00 per
share. Although the Fund is managed to maintain a stable price per share of
$1.00, there is no guarantee that the price will be constantly maintained, and
it is possible to lose money.
PERFORMANCE INFORMATION
Effective upon the close of business on June 15, 2012, the Fund replaced its
existing Investor Class Shares, Advisor Class Shares, A-Class Shares, C-Class
Shares and Investor2 Class Shares with a single share class. The Fund's new
share class has no performance history. Therefore, the returns shown in the bar
chart below for all periods are the returns of the Fund's former Investor Class
Shares, which were subject to the same fees and expenses as the shares offered
in this Prospectus. The Fund's shares would have annual returns substantially
similar to those of the former Investor Class Shares because they are invested
in the same portfolio of securities.

Updated performance information is available on the Fund's website at
www.rydex-sgi.com or by calling Guggenheim Investments Client Services at
800.820.0888.
The performance information shown below for the Fund's former Investor Class Shares is based on a calendar year.
Bar Chart
Highest Quarter Return              Lowest Quarter Return
(quarter ended 12/31/2006) 1.10%    (quarter ended 09/30/2011) 0.00%
AVERAGE ANNUAL TOTAL RETURN (for periods ended December 31, 2011)
Average Annual Total Returns
Average Annual Returns, Label
Average Annual Returns, 1 Year
Average Annual Returns, 5 Years
Average Annual Returns, 10 Years
U.S. Government Money Market Fund Money Market Class Shares
Return Before Taxes 0.01% 1.17% 1.38%
YIELD

Call 800.820.0888 for the Fund's current yield.
[1] If you exchange your A-Class Shares or C-Class Shares of another Guggenheim Investments fund for shares of the Fund, and your A-Class Shares or C-Class Shares are subject to a deferred sales charge at the time of the exchange, no deferred sales charge will be incurred on the exchange itself. However, any such deferred sales charge will be assessed at the time you redeem your shares of the Fund.