D.E. Shaw & Co. is a mega-fund with a concentrated portfolio. Top 3 positions are 44% of the equity book.
D.E. Shaw & Co., a quant hedge fund overseeing $131.54B in disclosed equity holdings (SEC CIK 0001009207). The latest portfolio (2025Q4) discloses 3168 positions across 11 sectors, with the largest positions in NVDA, SPY and MSFT. On a mark-to-market basis the tracked portfolio has returned 36.4% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.