497 1 ndf.txt STICKER MFS(R) New Discovery Fund Effective April 1, 2008, the introduction and table in the sub-section entitled "Expense Table" under the main heading "Expense Summary" is restated as follows, with respect to Class 529A, 529B, 529C, and R1 shares only: Expense Table This table describes the fees and expenses that you may pay when you buy, redeem, and hold shares of the fund. The annual fund operating expenses are based on expenses incurred during the fund's most recently completed fiscal year, adjusted to reflect annualized expenses and current fee arrangements. The fund's annual operating expenses may vary in future years. Shareholder Fees (fees paid directly from your investment): ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Share Class 529A 529B 529C All R ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Maximum Sales Charge (Load) 5.75% N/A N/A N/A Imposed on Purchases (as a percentage of offering price)...................... ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Maximum Deferred Sales See Below(#) 4.00% 1.00% N/A Charge (Load) (as a percentage of original purchase price or redemption proceeds, whichever is less).......... ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Annual Fund Operating Expenses (expenses that are deducted from fund assets): ---------------------------------------------------------------------------- Share Class 529A 529B 529C ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Management Fee...................... 0.90% 0.90% 0.90% Distribution and/or Service (12b-1) Fees(1)............................. 0.35% 1.00% 1.00% Other Expenses(2)................... 0.43% 0.43% 0.43% ----- ----- ----- Total Annual Fund Operating Expenses(2)......................... 1.68% 2.33% 2.33% Fee Reductions(3)............. (0.10)% (0.10)% (0.10)% ------- ------- ------- Net Expenses(2)..................... 1.58% 2.23% 2.23% ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Share Class R1 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Management Fee.............................................. 0.90% Distribution and/or Service (12b-1) Fees(1)................. 1.00% Other Expenses(2)........................................... 0.33% ----- Total Annual Fund Operating Expenses(2)..................... 2.23% Fee Reductions(3)..................................... (0.10)% ------- Net Expenses(2)............................................. 2.13% 1 Effective March 1, 2008, the last sentence in footnote (2) to the table in the sub-section entitled "Expense Table" is hereby deleted. Effective April 1, 2008, the sub-section entitled "Example of Expenses" under the main heading "Expense Summary" is restated as follows, with respect to Class 529A, 529B, 529C, and Class R1 shares only: Example of Expenses These examples are intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. The examples assume that: o 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); o Your investment has a 5% return each year and dividends and other distributions are reinvested; and o The fund's operating expenses remain the same, except that the fund's total operating expenses are assumed to be the fund's "Net Expenses" for the period during which any written fee reductions are in effect (see "Expense Summary - Expense Table" above). Although your actual costs may be higher or lower, under these assumptions your costs would be: ---------------------------------------------------------------------------- Share Class 1 Year 3 Years 5 Years 10 Years ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 529A Shares $726 $1,045 $1,386 $2,345 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 529B Shares(1) ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Assuming Redemption at End of Period $626 $997 $1,395 $2,401 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Assuming No Redemption $226 $697 $1,195 $2,401 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- 529C Shares ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Assuming Redemption at End of Period $326 $697 $1,195 $2,565 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Assuming No Redemption $226 $697 $1,195 $2,565 ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- R1 Shares $216 $667 $1,144 $2,462 ---------------------------------------------------------------------------- (1) Class 529B shares convert to Class 529A shares approximately eight years after purchase; therefore, years nine and ten reflect Class 529A expenses. 2 Effective March 1, 2008, the second paragraph of the sub-section entitled "Administrator" under the main heading "Management of the Fund" is hereby deleted. Effective April 1, 2008, the sub-section entitled "Program Manager(s)" under the main heading "Management of the Fund" is hereby restated as follows: Program Manager(s) MFD serves as program manager for a qualified tuition program under Section 529 of the Internal Revenue Code through which 529 share classes of the fund are included as investment options to program participants. MFD provides, either directly or through third parties, recordkeeping, tax reporting, and account services, as well as services designed to maintain the program's compliance with the Internal Revenue Code (the "Code") and other regulatory requirements under a Master 529 Administrative Services Agreement. The fund's 529 share classes may also be offered through qualified tuition programs for which MFD does not serve as program manager. Under the Agreement, the fund pays MFD an annual fee of up to 0.10% of the average daily net assets attributable to each 529 share class. MFD pays all or a portion of this fee to third parties. Please consult the program description for your particular qualified tuition program for a discussion of the fees paid to and services received from the program manager. Effective March 1, 2008, the table in the sub-section entitled "Distribution and Service Fees" under the main heading "Description of Share Classes" is restated as follows, with respect to Class R1 shares only: ---------------------------------------------------------------------------- Class Maximum Maximum Service Maximum Total Distribution and Distribution Fee Fee Service Fee ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- Class R1 0.75% 0.25% 1.00% ---------------------------------------------------------------------------- Effective April 1, 2008, the first two paragraphs of the sub-section entitled "529 Share Classes" under the main heading "How to Purchase, Redeem, and Exchange Shares" are restated as follows: 3 529 Share Classes. With respect to the 529 share classes, you can establish an account by having your financial intermediary process your purchase. Generally, the minimum initial investment is $250. MFSC waives or lowers the initial investment minimums for certain types of investors and investments. You may have your financial intermediary process your subsequent purchases or you may contact MFSC directly. Generally, there is no minimum for subsequent investments. The date of this supplement is April 1, 2008.