Jim Simons Portfolio Concentration: Top Holdings Analysis for Renaissance Technologies LLC
Analysis of Jim Simons' largest holdings and share changes in his Renaissance Technologies LLC portfolio as of December 2025.
Renaissance Technologies LLC, managed by renowned investor Jim Simons, held a substantial portfolio worth approximately $62.9 billion as of December 31, 2025. This analysis focuses on the largest holdings within the portfolio, highlighting their sector allocation and changes in shareholding during the prior period.
The largest position by value was Palantir Technologies Inc (PLTR), representing 2.43% of the total portfolio. Simons held 8,796,727 shares of this Technology sector stock. The position saw an increase of 230,852 shares (2.7%) during the period.
Netflix Inc (NFLX), a stock in the Communication Services sector, constituted 1.04% of the portfolio. Simons held 7,178,287 shares, marking a significant increase of 6,906,858 shares (2544.63%) from the previous period.
Micron Technology Inc (MU) was another major holding at 1.33% allocation. The Technology stock saw a substantial increase of 1,811,607 shares (151.03%) in Simons' portfolio.
Verisign Inc (VRSN), another Technology stock, accounted for 1.05% of the portfolio. Simons held 2,779,351 shares, which decreased by 390,920 shares (-12.33%) during the period.
Tesla Inc (TSLA), a Consumer Cyclical stock, represented 0.95% of the portfolio. The position increased by 937,632 shares (220.88%).
Costco Wholesale Corp (COST), a Consumer Defensive stock, held at 0.93% allocation, saw a massive increase of 679,978 shares (5220.96%) in Simons' portfolio.
Carvana Co (CVNA), another Consumer Cyclical stock, accounted for 0.92% of the portfolio. The position increased by 394,286 shares (38.92%) during the period.
Kinross Gold Corp (KGC) in the Basic Materials sector represented a 1.09% holding. The position decreased by 1,105,017 shares (-4.24%).
Exelixis Inc (EXEL) in the Healthcare sector represented a 0.95% holding. The position decreased by 1,545,223 shares (-10.0%).
This snapshot provides insight into the significant positions within Jim Simons' portfolio as of December 31, 2025. For more detailed information, please visit the investor profile at https://www.insiderset.com/investor/jim-simons-renaissance-technologies-llc or explore individual stock profiles at https://www.insiderset.com/investors/stocks/PLTR, https://www.insiderset.com/investors/stocks/NFLX, and other relevant company pages.