Jim Simons Renaissance Technologies
Jim Simons is the founder of Renaissance Technologies, one of the most successful quantitative hedge funds in the world. Before his career in finance, he served as a mathematics professor and made significant contributions to differential geometry. Simons applied his analytical expertise to develop sophisticated, algorithm-driven trading strategies, earning consistently high returns for investors.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Costco
COST
|
+$616M |
| 2 |
Netflix
NFLX
|
+$481M |
| 3 |
Micron Technology
MU
|
+$416M |
| 4 |
Tesla
TSLA
|
+$416M |
| 5 |
Procter & Gamble
PG
|
+$322M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$885M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$660M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$463M |
| 4 |
Applovin
APP
|
+$430M |
| 5 |
Meta Platforms (Facebook)
META
|
+$354M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 20.84% |
| 2 | Healthcare | 15.77% |
| 3 | Consumer Discretionary | 13.88% |
| 4 | Industrials | 9.94% |
| 5 | Financials | 8.79% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
851
Oneok
OKE
$58.4B
| $11.5M | 0.02% |
156,107
-136,400
| -47% | -$9.66M |
|
852
Fiverr
FVRR
$324M
| $11.5M | 0.02% |
580,459
+24,160
| +4% | +$520K |
|
853
Syndax Pharmaceuticals
SNDX
$1.7B
| $11.4M | 0.02% |
544,800
-315,700
| -37% | -$5.51M |
|
854
B2Gold
BTG
$6.7B
| $11.4M | 0.02% |
2,534,258
+2,197,360
| +652% | +$10.2M |
|
855
Dorman Products
DORM
$3.95B
| $11.3M | 0.02% |
91,900
+4,500
| +5% | +$607K |
|
856
Nature's Sunshine
NATR
$269M
| $11.3M | 0.02% |
524,097
+16,900
| +3% | +$310K |
|
857
Church & Dwight Co
CHD
$24B
| $11.3M | 0.02% |
+134,613
| New | +$11.5M |
|
|
GAU
858
Galiano Gold
GAU
$547M
| $11.2M | 0.02% |
4,433,653
+586,800
| +15% | +$1.45M |
|
859
Molina Healthcare
MOH
$10.7B
| $11.2M | 0.02% |
64,637
-255,600
| -80% | -$42M |
|
860
Tactile Systems Technology
TCMD
$537M
| $11.2M | 0.02% |
386,300
+21,100
| +6% | +$468K |
|
861
GameStop
GME
$8.33B
| $11.2M | 0.02% |
556,548
-3,023,800
| -84% | -$67.9M |
|
862
Penske Automotive Group
PAG
$14.4B
| $11.2M | 0.02% |
70,500
+36,300
| +106% | +$5.97M |
|
863
Insight Enterprises
NSIT
$4.6B
| $11.2M | 0.02% |
+136,873
| New | +$12.8M |
|
864
Merit Medical Systems
MMSI
$5.4B
| $11.1M | 0.02% |
126,212
+51,300
| +68% | +$4.37M |
|
865
Harley-Davidson
HOG
$2.9B
| $11.1M | 0.02% |
541,544
+143,644
| +36% | +$3.53M |
|
866
Allot
ALLT
$388M
| $11M | 0.02% |
1,119,939
+106,740
| +11% | +$1.02M |
|
867
SLM Corp
SLM
$5.22B
| $11M | 0.02% |
406,700
-368,400
| -48% | -$10.1M |
|
|
OLP
868
One Liberty Properties
OLP
$537M
| $11M | 0.02% |
542,051
-49,800
| -8% | -$1.03M |
|
|
PAMT
869
PAMT Corp
PAMT
$285M
| $11M | 0.02% |
909,202
-16,800
| -2% | -$178K |
|
870
HealthStream
HSTM
$849M
| $11M | 0.02% |
475,468
-171,732
| -27% | -$4.32M |
|
871
Cytokinetics
CYTK
$10.2B
| $10.9M | 0.02% |
172,067
-117,900
| -41% | -$7.33M |
|
872
Skyworks Solutions
SWKS
$10.5B
| $10.9M | 0.02% |
172,283
-603,600
| -78% | -$42.2M |
|
|
HIVE
873
HIVE Digital Technologies
HIVE
$706M
| $10.9M | 0.02% |
+4,230,200
| New | +$17.9M |
|
874
Safety Insurance
SAFT
$1.52B
| $10.9M | 0.02% |
140,000
-33,000
| -19% | -$2.44M |
|
875
Utah Medical Products
UTMD
$230M
| $10.8M | 0.02% |
193,614
-7,300
| -4% | -$423K |
|
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Jim Simons's Q4 2025 Portfolio in Review
As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.
By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.
- Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
- Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
- Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
- Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
- Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
- Jim Simons opened 466 new positions and closed 737 in Q4 2025.
- Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.
Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.