From Alpha to Systems: Rethinking System Stewardship with Sara Murphy

In this episode of The Future of Finance, Sara Murphy — former Chief Strategy Officer at The Shareholder Commons and now Director of System-Level Investing at the Sierra Club Foundation — shares how investors can play a transformative role in addressing global sustainability challenges through system-level investing and system stewardship.

Sara challenges the traditional “alpha-first” mindset that rewards individual company performance at the expense of long-term market health. Drawing from the Freshfields Legal Framework for Impact and PRI’s Active Ownership 2.0, she explains why investors must manage not only company-specific risks but also the broader social and environmental systems that underpin portfolio value.

She unpacks the conflicts of interest embedded in the financial system, the dangers of externalized costs like carbon emissions and inequality, and how “guardrails” — clear, expert-defined parameters for company behavior — can help institutional investors align stewardship with portfolio-wide sustainability.

Keywords: System-level investing, system stewardship, fiduciary duty, externalities, universal ownership, ESG integration, portfolio-first voting, shareholder commons, guardrails, sustainable finance