- Sector
- Financial Services
- Industry
- Asset Management
- Address
- Boston, MA 2199 Boston MA United States of America 2199
- IPO Date
- Dec 31, 1996
- Business
- MFS Mid Cap Growth Fund (OTCIX) is an open-end mutual fund managed by Massachusetts Financial Services Company (MFS) that seeks capital appreciation by investing primarily in equity securities of mid-cap growth companies exhibiting above-average earnings growth potential, high-quality business models with competitive advantages, barriers to entry, pricing power, and margin expansion opportunities; the portfolio emphasizes fundamentals and valuation in position sizing, with a benchmark of the Russell Midcap Growth Index, holdings typically between $1.1 billion and $43.3 billion in market capitalization, and diversification across sectors such as information technology (19.86%), industrials (15.71%), health care (14.22%), consumer discretionary (13.79%), and communication services (13.08%) as of October 31, 2025. Top holdings as of that date include Howmet Aerospace Inc., Take-Two Interactive Software Inc., Guidewire Software Inc., Vistra Corp., and Spotify Technology SA, comprising 28.08% of assets, with 98.81% in stocks, 1.19% in cash equivalents, and exposure primarily to North America (90.23%, mainly the United States at 86.91%) alongside limited international allocations to Europe ex-U.K., emerging markets, and other regions. The Class I shares (OTCIX), available without a sales charge to eligible investors, were inaugurated on January 2, 1997, with a net expense ratio of 0.78%, gross expense ratio of 0.79%, portfolio turnover of 57.57%, 105 issues, weighted average market cap of $43.2 billion, and active share of 64.72% versus the benchmark. The underlying fund commenced operations on December 1, 1993, with net assets of $14.94 billion as of October 31, 2025.
MFS, founded in 1924 and headquartered at 111 Huntington Avenue in Boston, Massachusetts, manages the fund as part of its broader offerings, which include over 80 U.S. mutual funds, exchange-traded funds, institutional separate accounts, the Meridian Funds for non-U.S. investors, and Variable Insurance Trust funds; the firm, a subsidiary of Sun Life Financial Inc., oversees $655.2 billion in assets under management as of November 30, 2025, supported by approximately 300 investment professionals across offices in Boston, Hong Kong, London, Singapore, São Paulo, Sydney, Tokyo, and Toronto, serving financial advisors, intermediaries, institutions such as pension plans and endowments, and insurance clients globally. Geographically, MFS operates as a full-service global investment manager with a focus on U.S. and international equity and fixed-income strategies for retail, institutional, and non-U.S. markets.
Recent developments include MFS's expansion into active exchange-traded funds, launching its first five in late 2024 reaching approximately $750 million in assets by August 31, 2025, followed by the sixth—the MFS Active Mid Cap ETF (NYSE: MMID)—on September 24, 2025, which invests across growth and value mid-cap companies for capital appreciation, enhancing client access to mid-cap core equity strategies amid the firm's centennial celebration of active management. No major acquisitions, funding rounds, or reorganizations specific to the OTCIX fund or MFS's core operations were reported in the last 1-2 years, though the firm continues to innovate with outcome-oriented products and maintains its position as the 33rd largest global asset manager and 9th largest U.S. active long-term mutual fund and ETF manager as of December 31, 2024.