- Sector
- Financial Services
- Industry
- Asset Management - Bonds
- Address
- 150 North Riverside Plaza Chicago IL 60606
- IPO Date
- Jan 2, 2019
- Business
- William Blair Short Duration Bond Fund Class I (BIFIX) is an open-end mutual fund managed by William Blair & Company, LLC, that seeks to generate current income consistent with relative stability of capital by investing at least 80% of its net assets in U.S. dollar-denominated, investment-grade fixed income securities, including bonds, U.S. government and public sector debt, asset-backed and mortgage-backed obligations of U.S. and foreign issuers, and corporate debt of U.S. and foreign issuers; the fund targets an effective duration of approximately 1-3 years to outperform the Bloomberg 1-3 Year U.S. Government/Credit Bond Index through active management focused on credit selection and sector allocation. It emphasizes investment-grade holdings rated at purchase, with a portfolio typically featuring U.S. Treasuries, agency securities, AAA to BBB-rated corporates, and limited exposure to below investment-grade names, maintaining an average coupon around 4% and annual turnover near 125%. The fund serves institutional and individual investors seeking short-duration bond exposure for income and capital preservation within diversified portfolios.
Established as part of William Blair Funds by William Blair & Company, founded in 1935 and headquartered at 150 North Riverside Plaza in Chicago, Illinois, the Short Duration Bond Fund operates within the firm's global investment management division, which manages billions in fixed income assets across U.S. and international offices. William Blair & Company, an independent, employee-owned firm, provides complementary services including investment banking, private wealth management, and other equity and fixed income mutual funds such as the William Blair Bond Fund and Ultra-Short Duration Bond Fund.
Recent developments include sustained portfolio management by experienced fixed income professionals, with no major fund-specific acquisitions, mergers, or reorganizations reported in 2024-2025; however, William Blair Investment Management continued strategic enhancements in fixed income capabilities, including insights on inflation-protected securities, credit risk monitoring, and diversification strategies amid market volatility. In September 2024, William Blair bolstered its investment banking arm by hiring a Financial Services Managing Director, supporting broader firm growth that indirectly benefits asset management scale and research resources available to funds like BIFIX. The fund maintained consistent monthly income distributions through 2025, with yields around 3.8% and stable net asset value near $9.50 per share, reflecting resilience in a rising rate environment.