AMG GW&K Enhanced Core Bond ESG Fund Class N (MFDAX) is an open-end mutual fund that seeks income and capital appreciation through active management of a diversified portfolio of fixed income securities, with at least 80% of net assets invested in bonds including investment-grade corporate bonds, agency mortgage-backed securities, government bonds, asset-backed securities, and up to 20% in below-investment-grade high yield bonds; the strategy emphasizes sector diversification, modest duration adjustments, and comprehensive ESG integration into issuer research to enhance returns and mitigate risks. Managed by GW&K Investment Management LLC, a Boston-based firm founded in 1974 that serves financial advisors, institutional investors, and private wealth clients with active equity and fixed-income strategies across 32 products including separately managed accounts and subadvised mutual funds distributed by AMG Funds, the fund operates primarily in U.S. markets targeting intermediate core-plus bond investors seeking ESG-aligned exposure with a focus on quality credits and downside protection. GW&K, an affiliate of Affiliated Managers Group (AMG) since its partnership model, maintains headquarters at 222 Berkeley Street in Boston, Massachusetts, with additional offices in Florida and New York, and manages the fund within AMG's broader platform of over 50 actively managed products. In recent developments, the fund navigated volatile interest rate environments in 2024-2025 with disciplined duration management and ESG focus, delivering a 1-year return of approximately 8.05% as of late 2024 amid Fed policy shifts and inflation concerns; Q1 2025 performance reached 2.66% driven by credit quality emphasis and low turnover of around 34-51%, while Q3 2025 commentary highlighted outperformance through strategic positioning in a higher-for-longer rate backdrop. The fund maintains assets under management of about $16.31 million for the Class N shares with a net expense ratio of 0.73%, minimum initial investment of $2,000, and daily pricing, underscoring GW&K's long-term, research-intensive approach without noted acquisitions, launches, or reorganizations in the past 1-2 years.