SIMT U.S. MANAGED VOLATILITY FUND (First Prospectus Summary) | SIMT U.S. MANAGED VOLATILITY FUND

U.S. MANAGED VOLATILITY FUND

Investment Goal

Capital appreciation with less volatility than the broad U.S. equity markets.

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 U.S. MANAGED VOLATILITY FUND Class A
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)	0.50%

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

Annual Fund Operating Expenses		SIMT U.S. MANAGED VOLATILITY FUND Class A
Management Fees		0.65%
Distribution (12b-1) Fees		none
Other Expenses		0.64%
Total Annual Fund Operating Expenses	[1]	1.29%

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 each year
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 U.S. MANAGED VOLATILITY FUND Class A	131	409	708	1,556

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 71%
of the average value of its portfolio.

Principal Investment Strategies

The U.S. Managed Volatility Fund will typically invest in securities of U.S.
companies of all capitalization ranges. These securities may include common
stocks, preferred stocks, ETFs and warrants. The Fund may also, to a lesser
extent, invest in ADRs and securities of non-U.S. companies.

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. The Fund is expected to achieve an
absolute return of the broad U.S. 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 Russell 3000 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 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 effectively weighs securities
based on their total expected risk and return without regard to market
capitalization and industry.

Principal Risks

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.

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 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.

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.

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

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 and 5 years, and since the Fund's inception,
compared with those of a broad measure of market performance. 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: 11.54% (09/30/09)
Worst Quarter: -20.35% (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 U.S. 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 A	Class A Return Before Taxes	9.71%	2.38%	5.50%	Oct. 28, 2004
Class A After Taxes on Distributions	Class A Return After Taxes on Distributions	9.49%	2.00%	5.03%	Oct. 28, 2004
Class A After Taxes on Distributions and Sales	Class A Return After Taxes on Distributions and Sale of Fund Shares	6.60%	1.94%	4.63%	Oct. 28, 2004
Russell 3000 Index Return	Russell 3000 Index Return (reflects no deduction for fees, expenses or taxes)	1.03%	(0.01%)	4.06%	Oct. 28, 2004	[1]

[1] Because the Fund incurred AFFE during the most recent fiscal year, the operating expenses in this fee table will not correlate to the expense ratio in the Fund's financial statements (or the "Financial Highlights" section in the prospectus) because the financial statements include only the direct operating expenses incurred by the Fund, not the indirect costs of investing in other investment companies.

[1] Index returns are shown from October 31, 2004.