MFS® U.S. Government Cash Reserve Fund

Effective February 27, 2009, new purchases into this fund have been suspended. Please see the prospectus for more information on purchase restrictions.

Average Annual Total Returns %

These results represent the percent change in net asset value.

As of 6/30/15 (YTD Updated Daily, as of 7/2/15) As of 6/30/15
 

*YTD Updated Daily as of 7/2/15, subject to revision and not annualized.

Performance data shown represents past performance and is no guarantee of future results. Investment return and principal value fluctuate so your shares, when sold, may be worth more or less than the original cost; current performance may be lower or higher than quoted.

An investment in the portfolio is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the portfolio seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the portfolio.

Performance data shown represents past performance and is no guarantee of future results. Investment return and principal value fluctuate so your shares, when sold, may be worth more or less than the original cost; current performance may be lower or higher than quoted.

An investment in the portfolio is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the portfolio seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the portfolio.

Annual Rates of Return at NAV %

As of 12/31/14

 
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
Rate of Return
0.00
0.00
0.00
0.00
0.00
0.01
2.13
4.97
4.71
2.82
 
Rate of Return
2014
0.00
2013
0.00
2012
0.00
2011
0.00
2010
0.00
2009
0.01
2008
2.13
2007
4.97
2006
4.71
2005
2.82

Performance Information

Start of Investment Operations
12/29/86
Class Inception
9/7/93
Max Sales Charge
1%
Expense Ratio (%)
Gross
0.90
Net
0.65

Gross Expense Ratio is the fund’s total operating expense ratio from the fund’s most recent prospectus.

Net Expense Ratio reflects the reduction of expenses from fee waivers and reimbursements. Elimination of these reductions will result in higher expenses and lower performance. These reductions will continue until at least December 31, 2015.

Distributions and Yields %

As of 5/31/15
For complete information view the Prospectus
7-Day Current Yield
Without Waiver
-0.8400
With Waiver
0.0000

Based on the latest seven days ended with dividends annualized. The yield quotation more closely reflects the current earnings of the Money Market portfolio than the total return quotation.

Subsidies and fee waivers may be imposed at any time to enhance a fund's yield during periods when the fund's operating expenses have a significant impact on the fund's yield due to lower interest rates.

Important Performance Information

Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the fund's performance results would be less favorable. All results are historical and assume the reinvestment of dividends and capital gains.

Sales Charges

Class A shares ("A") for MFS U.S. Government Cash Reserve Fund and MFS U.S. Government Money Market Fund may be purchased and redeemed at net asset value and have no initial sales charge.

This publication is authorized for distribution only when preceded or accompanied by a prospectus, or summary prospectus, for the portfolio being offered. Consider the fund's investment objectives, risks, charges and expenses. Contact MFS or view online. Read it carefully.