- Sector
- Financial Services
- Industry
- Asset Management
- Address
- Pax World Funds Series Trust I MA United States of America
- IPO Date
- Jun 11, 1997
- Business
- Impax U.S. Sustainable Economy Fund Investor Class (PXWGX) is a mutual fund managed by Impax Asset Management LLC that employs a systematic investment strategy targeting U.S. large-cap companies positioned to benefit from the transition to a more sustainable economy. The fund integrates proprietary sustainability tools with internal and external risk models to select quality, profitable companies while managing financial and sustainability-related risks, including stock-specific, country, industry, and style biases; it maintains a portfolio of approximately 130 holdings with a turnover ratio of 45% and assets under management of $557 million across share classes as of November 2025. Investor Class shares, with a minimum initial investment of $1,000 and additional investments of $50, focus on large blend U.S. equities across sectors such as technology and financials, benchmarked against the Russell 1000 Index.
Launched in June 1997 and domiciled in the United States, the fund operates under Impax Asset Management LLC, the North American division of Impax Asset Management Group plc, headquartered in Portsmouth, New Hampshire, with additional offices in New York and global presence in the United Kingdom, Ireland, Denmark, Hong Kong, and Japan. The fund serves retail and institutional investors seeking exposure to sustainable U.S. equities, offering share classes including Investor (PXWGX), Class A (PXGAX), and Institutional. It emphasizes environmental, social, and governance (ESG) factors aligned with the transition to a low-carbon economy, earning Morningstar's Low Carbon Designation based on 99% of AUM.
In recent developments, the fund traces its origins to Pax World Funds, founded in 1971 as a pioneer in U.S. sustainable mutual funds, which was acquired by Impax in 2018 and fully rebranded to Impax Funds effective December 31, 2022, retaining its systematic equity focus under lead managers Scott LaBreche and Christine Cappabianca. Impax Asset Management has pursued strategic fixed income expansions through the July 2024 acquisition of Absalon Corporate Credit's assets in Copenhagen and the April 2025 completion of the SKY Harbor Capital Management European assets acquisition, adding £1.1 billion in short-duration high yield strategies compliant with EU SFDR regulations and integrating seven team members to bolster credit capabilities across US Core Bond, High Yield, and emerging markets corporate bonds. Amid net outflows and AUM reduction to £26.1 billion for the fiscal year ended September 30, 2025, Impax announced plans for its first U.S. ETF launch in early 2026, an expanded systematic equity range including a new emerging markets fund, and ongoing AI-enhanced research processes.