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 | |
|---|---|---|---|---|---|---|
3101
VinFast Auto
VFS
$7.3B
| $40.4K | ﹤0.01% |
+12,100
| New | +$40.4K |
|
3102
Mega Matrix
MPU
$14.4M
| $39.5K | ﹤0.01% |
43,375
-2,221
| -5% | -$2.46K |
|
|
GCL
3103
GCL Global Holdings
GCL
$64.8M
| $38K | ﹤0.01% |
35,500
+6,600
| +23% | +$10.6K |
|
3104
Dare Bioscience
DARE
$21.6M
| $37.2K | ﹤0.01% |
19,295
-39,600
| -67% | -$79K |
|
|
CASI
3105
DELISTED
CASI Pharmaceuticals
CASI
| $36.6K | ﹤0.01% |
43,100
-800
| -2% | -$1.03K |
|
|
CISO
3106
CISO Global
CISO
$11.8M
| $36.6K | ﹤0.01% |
76,200
-221,300
| -74% | -$181K |
|
3107
Socket Mobile
SCKT
$13.4M
| $36.2K | ﹤0.01% |
35,500
+7,700
| +28% | +$8.43K |
|
3108
CXApp
CXAI
$17.7M
| $36.1K | ﹤0.01% |
108,600
+56,911
| +110% | +$32.6K |
|
3109
Dawson Geophysical
DWSN
$136M
| $33.7K | ﹤0.01% |
21,600
-8,188
| -27% | -$15.4K |
|
3110
Banco Bradesco
BBDO
$34B
| $33.6K | ﹤0.01% |
+11,710
| New | +$34.9K |
|
|
RKTO
3111
Rocket One Inc
RKTO
$19.8M
| $33.5K | ﹤0.01% |
33,848
-210,073
| -86% | -$267K |
|
|
BGMS
3112
Bio Green Med Solution Inc
BGMS
$5.1M
| $33.4K | ﹤0.01% |
+22,600
| New | +$51.4K |
|
|
WYHG
3113
Wing Yip Food Holdings
WYHG
$82.2M
| $33.1K | ﹤0.01% |
15,050
+11,250
| +296% | +$42.8K |
|
|
YI
3114
111 Inc
YI
$33.3M
| $32.5K | ﹤0.01% |
12,714
-300
| -2% | -$1.19K |
|
3115
BioVie
BIVI
$11.8M
| $32.5K | ﹤0.01% |
28,018
-44,900
| -62% | -$72.3K |
|
3116
Solarmax Technology
SMXT
$21.2M
| $32.4K | ﹤0.01% |
39,483
-817
| -2% | -$775 |
|
|
MOGU
3117
MOGU Inc
MOGU
$15.3M
| $32.1K | ﹤0.01% |
15,056
-1
| -0% | -$3 |
|
3118
Aterian
ATER
$5.09M
| $29.8K | ﹤0.01% |
42,847
+11,300
| +36% | +$9.87K |
|
|
ZTEK
3119
Zentek
ZTEK
$79.7M
| $29.4K | ﹤0.01% |
46,000
+7,900
| +21% | +$6.06K |
|
3120
New Concept Energy
GBR
$3.69M
| $29.4K | ﹤0.01% |
39,353
+1,902
| +5% | +$1.63K |
|
3121
DSS Inc
DSS
$5.15M
| $29.2K | ﹤0.01% |
31,448
| – | – |
|
|
FLZH
3122
Flash Sports & Media Holdings
FLZH
$71.1M
| $28.6K | ﹤0.01% |
4,080
-60
| -1% | -$492 |
|
3123
Ispire Technology
ISPR
$99.3M
| $28.3K | ﹤0.01% |
+10,100
| New | +$23.5K |
|
|
MF
3124
MindForge Inc. Class A Ordinary Shares
MF
$19.1M
| $27.8K | ﹤0.01% |
556
+52
| +10% | +$2.68K |
|
|
INTJ
3125
Intelligent Group
INTJ
$5.01M
| $27.6K | ﹤0.01% |
2,300
+360
| +19% | +$3.9K |
|
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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.