Your clients are your focus.
The active fixed income they need is ours.
Our Guiding Principles
Our Active Fixed Income Approach
Why Fixed Income at MFS?
Active solutions designed to help clients invest across the credit spectrum through changing markets, always keeping long-term income needs in mind.
Over a Century of Active
Management Experience
Taking full advantage of the ability to leverage multiple market levers and broader sector allocation.
55+ Years of Delivering
Fixed Income Solutions
With one of the oldest credit research departments and a distinctive research process, continuing to focus on sound security selection from macro and fundamental perspectives.
31 Fixed Income Funds
and Active ETFs
Leveraging our approach across taxable and tax-advantaged funds and active ETFs to focus on long-term client outcomes.
Showcasing Our Fixed Income Funds
A pioneer of active investing and one of the first active bond managers, MFS offers a range of fixed income funds across the global bond market.
Taxable & Tax Advantaged
Active ETFs
Our Approach
Backed by more than a century of experience, our active solutions are designed to help clients across the globe invest through changing markets.
With the long term always in mind, we’re guided by these principles:
US Multi-Sector
Global Multi-Sector
US Credit
Global Credit
Emerging Markets Debt
Municipal Bonds
1 As of 31-Mar-2026
Additional Insights
Webcast: Keep Calm and Carry on Diversifying
Webcast: The Deafening Silence of the Fed
From AI Beta to FI Alpha
As debt-funded AI investment grows, security selection will become a larger driver of active fixed income returns.
MFS registered investment products are offered through MFS® Fund Distributors, Inc., Member SIPC, 111 Huntington Avenue, Boston, MA 02199.