SIMT GLOBAL MANAGED VOLATILITY FUND (Third Prospectus Summary) | SIMT GLOBAL MANAGED VOLATILITY FUND

GLOBAL MANAGED VOLATILITY FUND

Investment Goal

Capital appreciation with less volatility than the broad global equity markets.

Fund Fees and Expenses

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

SHAREHOLDER FEES (fees paid directly from your investment)

Shareholder Fees	SIMT GLOBAL MANAGED VOLATILITY FUND Class G
Redemption Fee (applies to a redemption, or series of redemptions, from a single identifiable source that, in the aggregate, exceeds $25 million within any thirty (30) day period)	0.75%

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

Annual Fund Operating Expenses	SIMT GLOBAL MANAGED VOLATILITY FUND Class G
Management Fees	0.65%
Distribution (12b-1) Fees	0.25%
Other Expenses	0.64%
Total Annual Fund Operating Expenses	1.54%

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
SIMT GLOBAL MANAGED VOLATILITY FUND Class G	157	486	839	1,834

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 68%
of the average value of its portfolio.

Principal Investment Strategies

The Global Managed Volatility Fund will typically invest in securities of U.S.
and foreign companies of all capitalization ranges. These securities may include
common stocks, preferred stocks, warrants, depositary receipts and ETFs. The
Fund also may use futures contracts and forward contracts.

Under normal circumstances, the Fund will invest in at least three countries
outside of the U.S., but will typically invest much more broadly. It is expected
that at least 40% of the Fund's assets will be invested in non-U.S. securities.
The Fund will invest primarily in companies located in developed countries, but
may also invest in companies located in emerging markets.

The Fund uses a multi-manager approach, relying on a number of Sub-Advisers with
differing investment philosophies to manage portions of the Fund's portfolio
under the general supervision of SIMC. This approach is intended to manage the
risk characteristics of the Fund. The Fund is expected to achieve an absolute
return of the broad global equity markets, but with a lower absolute volatility.
Over the long term, the Fund is expected to achieve a return similar to that of
the MSCI World Equity Index, but with a lower level of volatility. However,
given that the Fund's investment strategy focuses on absolute return and risk,
the Fund's country, sector and market capitalization exposures will typically
vary from the index and may cause significant performance deviations relative to
the index over shorter-term periods. The Fund seeks to achieve lower volatility
by constructing a portfolio of securities that the Sub-Advisers believe would
produce a less volatile return stream to the market. Each Sub-Adviser
effectively weighs securities based on their total expected risk and return
without regard to market capitalization and industry.

In managing the Fund's currency exposure for foreign securities, the Fund may
buy and sell futures or forward contracts on currencies for hedging purposes.

Principal Risks

Credit Risk - The risk that the issuer of a security or the counterparty to a
contract will default or otherwise become unable to honor a financial
obligation.

Currency Risk - As a result of the Fund's investments in securities or other
investments denominated in, and/or receiving revenues in, foreign currencies,
the Fund will be subject to currency risk. Currency risk is the risk that
foreign currencies will decline in value relative to the U.S. dollar or, in the
case of hedging positions, that the U.S. dollar will decline in value relative
to the currency hedged. In either event, the dollar value of an investment in
the Fund would be adversely affected.

Depositary Receipts Risk - Depositary receipts, such as ADRs, are certificates
evidencing ownership of shares of a foreign issuer that are issued by depositary
banks and generally trade on an established market. Depositary receipts are
subject to many of the risks associated with investing directly in foreign
securities, including, among other things, political, social and economic
developments abroad, currency movements and different legal, regulatory and tax
environments.
  
Derivatives Risk - The Fund's use of futures contracts, options on futures,
forward contracts and swap agreements is subject to market risk, leverage risk,
correlation risk and liquidity risk. Leverage risk and liquidity risk are
described below. Market risk is the risk that the market value of an investment
may move up and down, sometimes rapidly and unpredictably. Correlation risk
is the risk that changes in the value of the derivative may not correlate
perfectly with the underlying asset, rate or index. The Fund's use of forward
contracts and swap agreements is also subject to credit risk and valuation risk.
Valuation risk is the risk that the derivative may be difficult to value and/or
valued incorrectly. Credit risk is described above. Each of these risks could
cause the Fund to lose more than the principal amount invested in a derivative
instrument.

Equity Market Risk - The risk that stock prices will fall over short or extended
periods of time.

Exchange-Traded Funds (ETFs) Risk - The risks of owning shares of an ETF
generally reflect the risks of owning the underlying securities the ETF is
designed to track, although lack of liquidity in an ETF could result in its
value being more volatile than the underlying portfolio securities.

Foreign Investment/Emerging Markets Risk - The risk that non-U.S. securities may
be subject to additional risks due to, among other things, political, social and
economic developments abroad, currency movements and different legal, regulatory
and tax environments. These additional risks may be heightened with respect to
emerging market countries since political turmoil and rapid changes in economic
conditions are more likely to occur in these countries.

Investment Style Risk - The risk that securities selected as part of a managed
volatility strategy may underperform other segments of the equity markets or the
equity markets as a whole.

Leverage Risk - The use of leverage can amplify the effects of market volatility
on the Fund's share price and may also cause the Fund to liquidate portfolio
positions when it would not be advantageous to do so in order to satisfy its
obligations.

Liquidity Risk - The risk that certain securities may be difficult or impossible
to sell at the time and the price that the Fund would like. The Fund may have to
lower the price, sell other securities instead or forego an investment
opportunity, any of which could have a negative effect on Fund management or
performance.

Portfolio Turnover Risk - Due to its investment strategy, the Fund may buy and
sell securities frequently. This may result in higher transaction costs and
additional capital gains tax liabilities.

Small and Medium Capitalization Companies Risk - The smaller and medium
capitalization companies in which the Fund invests may be more vulnerable to
adverse business or economic events than larger, more established companies. In
particular, small and medium capitalization companies may have limited product
lines, markets and financial resources and may depend upon a relatively small
management group. Therefore, small and medium capitalization stocks may be more
volatile than those of larger companies. Small and medium capitalization stocks
may be traded over-the-counter or listed on an exchange.

Loss of money is a risk of investing in the Fund.

Performance Information

As of January 31, 2010, Class G Shares of the Fund had not commenced operations
and did not have a performance history.

The bar chart and the performance table below provide some indication of the
risks of investing in the Fund by showing changes in the Fund's performance from
year to year for each calendar year since inception and by showing how the
Fund's average annual returns for 1 year, and since the Fund's inception,
compared with those of a broad measure of market performance. Since Class G
Shares are invested in the same portfolio of securities, return for Class G
Shares will be substantially similar to those of Class A Shares, shown here, and
will differ only to the extent that Class G Shares have higher expenses. The
Fund's past performance (before and after taxes) is not necessarily an indication
of how the Fund will perform in the future. For current performance information,
please call 1-800-DIAL-SEI.

Best Quarter   Worst Quarter   
   7.57%       -15.33%   
  09/30/09     12/31/08

Average Annual Total Returns (for the periods ended December 31, 2011)

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. Your actual after-tax returns will depend on your tax situation and may
differ from those shown. After-tax returns shown are not relevant to investors
who hold their Fund shares through tax-deferred arrangements, such as
401(k) plans or individual retirement accounts.

Average Annual Total Returns SIMT GLOBAL MANAGED VOLATILITY FUND	Average Annual Returns, Label	Average Annual Returns, 1 Year	Average Annual Returns, 5 Years	Average Annual Returns, Since Inception	Average Annual Returns, Inception Date
Class G	Class A Return Before Taxes	4.58%	(3.23%)	(1.17%)	Jul. 27, 2006
Class G After Taxes on Distributions	Class A Return After Taxes on Distributions	4.58%	(3.42%)	(1.42%)	Jul. 27, 2006
Class G After Taxes on Distributions and Sales	Class A Return After Taxes on Distributions and Sale of Fund Shares	2.98%	(2.78%)	(1.08%)	Jul. 27, 2006
MSCI World Index, Hedged Return	MSCI World Index, Hedged Return (reflects no deduction for fees, expenses or taxes)	(5.46%)	(2.44%)	(0.14%)	Jul. 27, 2006	[1]
MSCI World Minimum Volatility Index, 100% Hedged to USD Return	MSCI World Minimum Volatility Index 100% Hedged to USD Return (reflects no deduction for fees, expenses or taxes)	7.29%	1.24%	3.44%	Jul. 27, 2006	[1]

[1] Index returns are shown from July 31, 2006.