Impax Asset Management, an investment management company, released its “Impax US Sustainable Economy Fund” third-quarter 2025 investor letter. A copy of the letter can be downloaded here. In Q3 2025, the portfolio lagged behind the Russell 1000. Similar to the second quarter, the US equity markets favored a risk-on approach, benefiting high-risk, high-momentum, and lower-quality factors. Although the portfolio’s focus on relatively modest, lower-risk, and high-quality factors contributed to the underperform ...