Fund Performance Summary

LEGAL DISCLOSURES

About Performance
The performance data presented represents past performance and is no guarantee of future results. Total returns include reinvestment of dividends and distributions. Current performance may be lower or higher than the performance data presented. Performance data current to the most recent month end is available on the product detail page for each Fund. Fund share prices and returns will fluctuate with market conditions. The value of an investment in the Fund, when redeemed, may be worth more or less than its original purchase cost. Calculations include reinvestment of all distributions. Returns for periods less than one year are cumulative. Performance would have been lower if fees had not been waived in various periods.

Net and Gross Expense Ratio
For MWUIX the total expense ratio is 0.64% and the net expense ratio is 0.34%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.35%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWUSX the total expense ratio is 0.48% and the net expense ratio is 0.50%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.51%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWLIX the total expense ratio is 0.44% and the net expense ratio is 0.39%. The Fund incurred interest expense and Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.41%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWLDX the total expense ratio is 0.63% and the net expense ratio is 0.58%. The Fund incurred interest expense and Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.60%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWIIX the total expense ratio is 0.57% and the net expense ratio is 0.44%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.45%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWIMX the total expense ratio is 0.78% and the net expense ratio is 0.65%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.66%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWTIX the total expense ratio is 0.44%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWTRX the total expense ratio is 0.65%. Expenses reflect a contractual agreement by the Adviser to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWHIX the total expense ratio is 0.74% and the net expense ratio is 0.55%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.56%. Expenses reflect a contractual agreement by the Advisor to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWHYX the total expense ratio is 1.00% and the net expense ratio is 0.80%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.81%. Expenses reflect a contractual agreement by the Advisor to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWATX the total expense ratio is 0.24% and the net expense ratio is 0.18%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.22%. Expenses reflect a contractual agreement by the Advisor to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWSIX the total expense ratio is 0.53% and the net expense ratio is 0.32%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.53%. Expenses reflect a contractual agreement by the Advisor to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

For MWSTX the total expense ratio is 0.81% and the net expense ratio is 0.60%. The Fund incurred Acquired Fund Fees and Expenses for the year ended March 31, 2009, and the ratio of annualized operating expenses to average net assets for that year was 0.81%. Expenses reflect a contractual agreement by the Advisor to reduce its fees and/or absorb expenses to limit the fund's total annual operating expenses until March 31, 2011.

About the Index or Indices
The index listed is unmanaged, and is not available for direct investment. Unlike a mutual fund, the performance of an index assumes no taxes, transaction costs, management fees, or other expenses. The securities in the Fund may differ substantially from those in the index.

BofA Merrill Lynch 1-Year U.S. Treasury Index - Is an unmanaged index comprised of a single issue purchased at the beginning of the month and held for a full month. The issue selected at each month-end rebalancing is the outstanding two-year Treasury Note Bill that matures closest to, but, not beyond one year from the rebalancing date.

BofA Merrill Lynch 1-3 Year U.S. Treasury Index - Is a subset of The Bank of America Merrill Lynch US Treasury Index including all securities with a remaining term to final maturity less than 3 months.

Barclays Capital Intermediate U.S. Government/Credit Index - Is a subset of the Barclays Capital Gov't/Credit Index including all securities with over 1 year but less than 10 years left until maturity. The Barclays Capital Gov't/Credit Index is an unmanaged index composed of securities from the Barclays Capital US Treasury Index, Barclays Capital US Government Related Index and the Barclays US Corporate Index.

Barclays Capital U.S. Aggregate Bond Index - Is an unmanaged index composed of securities from the Barclays Capital Government/Credit Bond Index, Mortgage-Backed Securities Index, Asset-Backed Securities Index, ERISA Eligible CMBS Index. Total return comprises price appreciation/depreciation and income as a percentage of the original investment. Indices are rebalanced monthly by market capitalization.

Barclays U.S. Corporate High Yield Index - 2% Issuer Cap - Is an unmanaged index that covers the USD - denominated, non-investment grade, fixed-rate, taxable corporate bond market. The index limits exposures to a specific issuer to a maximum 2% by market value.

S&P 500 Index - A capitalization-weighted index of 500 stocks designed to measure performance of the broad domestic economy through changes in the aggregate market value of 500 stocks representing all major industries.

BofA Merrill Lynch 3-Month U.S. Treasury Bill Index +2% - Is an unmanaged index comprised of a single issue purchased at the beginning of the month and held for a full month. The issue selected at each month-end rebalancing is the outstanding Treasury Bill that matures closest to, but, not beyond three months from the rebalancing date.

A Word About Risk Bond Funds have the same interest rate, high yield and credit risks associated with the underlying bonds in the portfolio, all of which could reduce the Fund's value. As interest rates rise, the value of the Fund can decline and an investor can lose principal.

Obtain a Prospectus You should consider the investment objectives, risks, charges, and expenses of the Fund carefully before investing. Click here to obtain a prospectus which contains this and other information on the Fund. Please read the prospectus carefully before you invest or send money.

The MetWest Funds are distributed by BNY Mellon Distributors Inc. which is not affiliated with TCW. The MetWest Funds are advised by Metropolitan West Asset Management, LLC, which is a wholly-owned subsidiary of The TCW Group, Inc.