MFS® Government Securities Fund

Average Annual Total Returns %

These results represent the percent change in net asset value.

As of 2/28/15 (YTD Updated Daily, as of 3/31/15) As of 12/31/14
 

*YTD Updated Daily as of 3/31/15 , 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.

A portion of the fund's distributions may include a return of capital for shareholders. Distributions that are treated for federal income tax purposes as a return of capital will reduce a shareholder's tax basis in his or her shares and, to the extent the distribution exceeds a shareholder's adjusted tax basis, will be treated as a gain to the shareholder from a sale of shares.

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.

A portion of the fund's distributions may include a return of capital for shareholders. Distributions that are treated for federal income tax purposes as a return of capital will reduce a shareholder's tax basis in his or her shares and, to the extent the distribution exceeds a shareholder's adjusted tax basis, will be treated as a gain to the shareholder from a sale of shares.

Annual Rates of Return at NAV %

As of 12/31/14

 
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
Rate of Return
4.63
-2.96
2.08
7.19
4.59
4.23
8.51
7.07
3.60
2.17
 
Rate of Return
 
2014
4.63
 
2013
-2.96
 
2012
2.08
 
2011
7.19
 
2010
4.59
 
2009
4.23
 
2008
8.51
 
2007
7.07
 
2006
3.60
 
2005
2.17
 

Performance Information

Start of Investment Operations
7/25/84
Class Inception
7/25/84
Max Sales Charge
4.25%
Expense Ratio (%)
Gross
0.88
Net
0.88

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.

Distributions and Yields %

As of 2/28/15
For complete information view the Prospectus
Distribution Rates
Not Including Sales Charges
1.88
Including Sales Charges
1.80

The distribution rates are computed by annualizing the current distribution rate per share (excluding short-term capital gains), and dividing the result by the public offering price (for the distribution rate including sales charge) or net asset value (for the distribution rate not including sales charge) at the end of the business day.

30-Day SEC Yields
Without Waiver
1.04
With Waiver
1.05

The fund's 30-day yield is based on the yield of a fund's investments over a 30-day period and not on the dividend paid by the fund, which may differ.

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") results include the maximum 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.