Peconic Partners Founder's $3.1 Billion Hedge Fund Returns 79% with Infrastructure Focus

Peconic Partners' Bill Harnisch delivered a 79% return in 2025 by focusing on infrastructure names such as Quanta Services, Dycom Industries, and MasTec, which support AI, high-speed internet, and rising electricity demand. Harnisch maintained a skeptical view of the broader market and kept net leverage low. Despite expectations of "flat to down" performance for the S&P 500 in 2026, Harnisch remains cautious but sees long-term potential in his core holdings.