MFS Latin American Equity Fund (Prospectus Summary) | MFS Latin American Equity Fund

Summary of Key Information

Investment Objective

The fund's investment objective is to seek capital appreciation.

Fees and Expenses

This table describes the fees and expenses that you may pay when you buy and

hold shares of the fund. Expenses have been adjusted to reflect current fee

arrangements.



You may qualify for sales charge reductions if you and certain members of your

family invest, or agree to invest in the future, at least $50,000 in MFS Funds.

More information about these and other waivers and reductions is available from

your financial intermediary and in "Sales Charges and Waivers or Reductions" on

page 7 of the fund's prospectus and "Waivers of Sales Charges" on page I-13 of

the fund's statement of additional information Part I.

Shareholder Fees (fees paid directly from your investment):

Shareholder Fees MFS Latin American Equity Fund	A		B	C	I
Shareholder Fees, Column Name	A		B	C	I
Maximum Sales Charge (Load) Imposed on Purchases (as a percentage of offering price)	5.75%		none	none	none
Maximum Deferred Sales Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less)	1.00%	[1]	4.00%	1.00%	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment):

Annual Fund Operating Expenses MFS Latin American Equity Fund		A	B	C	I
Operating Expenses, Column Name		A	B	C	I
Management Fee		1.05%	1.05%	1.05%	1.05%
Distribution and/or Service (12b-1) Fees		0.25%	1.00%	1.00%	none
Other Expenses		9.25%	9.25%	9.25%	9.25%
Total Annual Fund Operating Expenses		10.55%	11.30%	11.30%	10.30%
Fee Reductions and/or Expense Reimbursements	[1]	(8.90%)	(8.90%)	(8.90%)	(8.90%)
Total Annual Fund Operating Expenses After Fee Reductions and/or Expense Reimbursements		1.65%	2.40%	2.40%	1.40%

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 you redeem your shares at the end of the time periods (unless

otherwise indicated); your investment has a 5% return each year; and the fund's

operating expenses remain the same.

Although your actual costs will likely be higher or lower, under these assumptions your costs would be:

Expense Example MFS Latin American Equity Fund (USD $)	Expense Example, By Year, Column Name	Expense Example, With Redemption, 1 Year	Expense Example, With Redemption, 3 Years	Expense Example, With Redemption, 5 Years	Expense Example, With Redemption, 10 Years
A	Class A Shares	733	2,676	4,409	7,967
B	Class B Shares assuming redemption at end of period	643	2,688	4,486	8,062
C	Class C Shares assuming redemption at end of period	343	2,418	4,328	8,143
I	Class I Shares	143	2,165	3,979	7,736

Expense Example, No Redemption MFS Latin American Equity Fund (USD $)	Expense Example, No Redemption, By Year, Column Name	Expense Example, No Redemption, 1 Year	Expense Example, No Redemption, 3 Years	Expense Example, No Redemption, 5 Years	Expense Example, No Redemption, 10 Years
B	Class B Shares assuming no redemption at end of period	243	2,418	4,328	8,062
C	Class C Shares assuming no redemption at end of period	243	2,418	4,328	8,143

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 shares are

held in a taxable account. These transaction costs, which are not reflected in

"Annual Fund Operating Expenses" or in the "Example," affect the fund's

performance.  For the period from the fund's commencement of operations on

September 15, 2010 to the fund's fiscal year end of July 31, 2011, the fund's

portfolio turnover rate was approximately 30% of the average value of its

portfolio.

Principal Investment Strategies

MFS (Massachusetts Financial Services Company, the fund's investment adviser)

normally invests at least 80% of the fund's net assets in equity securities of

Latin American issuers and other investments that are tied economically to Latin

America. The Latin American region includes any country in South America,

Central America, the Caribbean, and Mexico. All of the countries in the Latin

American region are currently considered emerging market economies.



Equity securities include common stocks, preferred stocks, securities

convertible into stocks, and depositary receipts for those securities.



MFS may invest a large percentage of the fund's assets in issuers in a single

country or a small number of countries within Latin America.



MFS may invest up to 35% of the fund's assets in any industry that accounts for

more than 20% of the Latin American market.



In selecting investments for the fund, MFS is not constrained to any particular

investment style. MFS may invest the fund's assets in the stocks of companies it

believes to have above average earnings growth potential compared to other

companies (growth companies), in the stocks of companies it believes are

undervalued compared to their perceived worth (value companies), or in a

combination of growth and value companies.



MFS may invest the fund's assets in companies of any size.



The fund is a non-diversified fund. This means that MFS may invest a relatively

large percentage of the fund's assets in a single issuer or a small number of

issuers.



MFS uses a bottom-up investment approach to buying and selling investments for

the fund. Investments are selected primarily based on fundamental analysis of

individual issuers. Quantitative models that systematically evaluate issuers may

also be considered.

Principal Risks

As with any mutual fund, the fund may not achieve its objective and/or you could

lose money on your investment in the fund. An investment in the fund is not a

bank deposit and is not insured or guaranteed by the Federal Deposit Insurance

Corporation or any other governmental agency.



The principal risks of investing in the fund are:



Stock Market/Company Risk:  Stock markets are volatile and can decline

significantly in response to issuer, market, economic, industry, political,

regulatory, geopolitical, and other conditions, as well as to investor

perceptions of these conditions. The price of an equity security can decrease

significantly in response to these conditions, and these conditions can affect a

single issuer or type of security, issuers within a broad market sector,

industry or geographic region, or the market in general.



Foreign and Emerging Markets Risk:  Exposure to foreign markets, especially

emerging markets, through issuers or currencies can involve additional risks

relating to market, economic, political, regulatory, geopolitical, or other

conditions. These factors can make foreign investments, especially those in

emerging markets, more volatile and less liquid than U.S. investments. In

addition, foreign markets can react differently to these conditions than the

U.S. market. Emerging markets can have less developed markets and less developed

legal, regulatory, and accounting systems, and greater political, social, and

economic instability than developed markets.



Currency Risk:  The value of foreign currencies relative to the U.S. dollar

fluctuates in response to market, economic, political, regulatory, geopolitical

or other conditions, and a decline in the value of a foreign currency versus the

U.S. dollar reduces the value in U.S. dollars of investments denominated in that

foreign currency.



Geographic Concentration Risk:  The fund's performance could be closely tied to

the market, currency, economic, political, regulatory, geopolitical, or other

conditions in the countries or regions in which the fund invests and could be

more volatile than the performance of more geographically-diversified funds.



Latin American Market Risk:  All of the countries in the Latin American region

are currently considered emerging market economies. High interest, inflation,

and unemployment rates have historically characterized most Latin American

economies.  These economies are less developed and can be reliant on particular

industries and more vulnerable to changes in international trade, trade barriers

and other protectionist or retaliatory measures. The economies of Latin American

countries are particularly sensitive to fluctuations in commodity prices because

commodities represent a significant percentage of exports of many Latin American

countries. Governments of many Latin American countries exercise substantial

influence over many aspects of the private sector, and any such exercise could

have a significant effect on issuers in which the fund invests.



Non-Diversification Risk:  Because MFS may invest a relatively large percentage

of the fund's assets in a single issuer or small number of issuers, the fund's

performance could be closely tied to the value of that one issuer or issuers,

and could be more volatile than the performance of diversified funds.



Investment Selection Risk:  The MFS analysis of an investment can be incorrect

and can lead to an investment focus that results in the fund underperforming

other funds with similar investment strategies and/or underperforming the

markets in which the fund invests.



Counterparty and Third Party Risk:  Transactions involving a counterparty or

third party other than the issuer of the instrument are subject to the credit

risk of the counterparty or third party, and to the counterparty's or third

party's ability to perform in accordance with the terms of the transaction.



Liquidity Risk:  It may not be possible to sell certain investments, types of

investments, and/or segments of the market at any particular time or at an

acceptable price.

Performance Information

The bar chart and performance table are not included because the fund has not

had a full calendar year of investment operations.

[1] On shares purchased without an initial sales charge and redeemed within 24 months of purchase.

[1] MFS has agreed in writing to bear the fund's expenses, excluding interest, taxes, extraordinary expenses, brokerage and transaction costs, and investment-related expenses (such as interest and borrowing expenses incurred in connection with the fund's investment activity), such that "Total Annual Fund Operating Expenses" do not exceed 1.65% of the fund's average daily net assets annually for Class A shares, 2.40% of the fund's average daily net assets annually for each of Class B and Class C shares, and 1.40% of the fund's average daily net assets annually for Class I shares. This written agreement will continue until modified by the fund's Board of Trustees, but such agreement will continue until at least November 30, 2012.