3 Top-Ranked MFS Mutual Funds for Strong Returns

Founded in 1924, MFS (Massachusetts Financial Services) had $622. 2 billion in assets under management as of March 31, 2026. The company manages more than 80 portfolios, which invest in domestic and global stocks along with fixed-income debt securities. It focuses on providing a wide variety of financial products and services to fulfill the needs of investors, as well as 10,000 investment professionals.

MFS is headquartered in Boston, MA, and has investment offices in Hong Kong, Sao Paulo, Singapore, Mexico City, Toronto, London, Sydney, Luxembourg and Tokyo. The company has a dedicated staff of more than 2000 worldwide, catering to clients’ needs. Its investment approach includes integrated study, international cooperation and expertise in risk management.

Below, we share with you three top-ranked MFS mutual funds, viz., MFS Blended Research Mid Cap Eq (BMSTX), MFS Blended Research Core Equity (MUEAX) and MFS International Intrinsic Value (MGICX). Each has a Zacks Mutual Fund Rank #1 (Strong Buy) and is expected to outperform its peers in the future. Investors can click here to see the complete list of MFS mutual funds.

MFS Blended Research Mid Cap Eq fund invests most of its assets in equity securities of mid-cap companies. BMSTX advisors also invest in foreign securities.

MFS Blended Research Mid Cap Eq has three-year annualized returns of 13.7%. As of the end of November 2025, BMSTX held 146 issues, with 1.7% of its net assets invested in Valero Energy Corp.

MFS Blended Research Core Equity fund seeks long-term growth of capital. MUEAX invests its net assets in common stocks and related securities of companies that have a unionized workforce and meet certain labor sensitivity guidelines. 

MFS Blended Research Core Equity has returned 18.9% in the past three years. MUEAX has an expense ratio of 0.74%.

MFS International Intrinsic Value fund seeks long-term growth of capital with a secondary objective to seek reasonable current income. MGICX invests its net assets in equity securities of foreign (including emerging market) companies, which it believes are undervalued in the market relative to their long-term potential.

MFS International Intrinsic Value has three-year annualized returns of 14.4%. Benjamin Stone has been one of the fund managers of MGICX since November 2008.

To view the Zacks Rank and the past performance of all MFS mutual funds, investors can click here to see the complete list of MFS mutual funds.

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