Dan Sundheim runs D1 Capital, a hedge fund overseeing $10.70B in disclosed equity holdings (SEC CIK 0001747057). The latest portfolio (2025Q4) discloses 42 positions across 10 sectors, with the largest positions in CART, CLH and FLS. On a mark-to-market basis the tracked portfolio has returned 27.7% over the past year. OpenStocks tracks 29 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.
Methodology: TWR tiles chain-link quarterly mark-to-market across consecutive filings (GIPS-compliant) · actual tiles use a real 13F snapshot marked to today · backtest tiles re-price the current book to historical prices.
We mark Dan Sundheim (D1 Capital)'s disclosed portfolio to current market prices and compare its growth against the S&P 500 (SPY). Dan’s portfolio is 27.7% over the last 12 months · 94.9% since 2018Q4.