Port Capital Management

Paul Dietrich serves as Chief Executive Officer and chief investment decision-maker for the firm. He designed the core earnings-acceleration screening methodology and remains the named portfolio manager for the firm's large-cap growth strategies. Dietrich's tenure traces to the firm's founding, creating strong alignment between the investment process and the leadership that oversees it.

ESG integration functions as a fundamental screen rather than an exclusionary filter or a separate overlay. Companies that score poorly on governance indicators or exhibit high exposure to carbon-intensive fuel industries are removed from consideration before the upside-capture model screens for earnings acceleration. The resulting portfolio is designed to match or exceed the Russell 1000 Growth benchmark's growth profile while maintaining significantly lower ESG risk scores.

The firm's large-cap growth strategy typically holds between 30 and 40 positions, consistent with a concentrated best-ideas approach. Position sizes are weighted based on conviction scores derived from the earnings-revision and ESG screens rather than strict market-cap replication, resulting in high active share versus the Russell 1000 Growth Index.

Port Capital manages institutional separate accounts and has expanded access through model-delivery platforms and sub-advisory relationships that serve registered investment advisors (RIAs) and smaller institutions. Direct retail mutual fund or ETF vehicles branded as Port Capital are not currently available; access is typically through wealth management distribution channels.

Unlike passive ESG indices that rely on third-party exclusionary criteria and market-cap weighting, Port Capital actively selects companies based on an earnings-acceleration model with a built-in governance and environmental screen. The active share is high, and the strategy has historically generated performance distinct from both traditional large-cap growth benchmarks and ESG index products. The approach treats ESG variables as forward-looking fundamental factors rather than backward-looking scoring artifacts.