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 |
NVIDIA
NVDA
|
+$798M |
| 2 |
Netflix
NFLX
|
+$608M |
| 3 |
UnitedHealth
UNH
|
+$517M |
| 4 |
Apple
AAPL
|
+$461M |
| 5 |
GE Vernova
GEV
|
+$296M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$527M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$372M |
| 3 |
Meta Platforms (Facebook)
META
|
+$362M |
| 4 |
Advanced Micro Devices
AMD
|
+$328M |
| 5 |
Palantir
PLTR
|
+$327M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 19.57% |
| 2 | Healthcare | 15.8% |
| 3 | Consumer Discretionary | 12.38% |
| 4 | Financials | 11.53% |
| 5 | Industrials | 8.92% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1101
Columbia Financial
CLBK
$1.2B
| $9.31M | 0.01% |
641,741
+11,109
| +2% | +$158K |
|
1102
Addus HomeCare
ADUS
$2.22B
| $9.31M | 0.01% |
80,800
-37,800
| -32% | -$4.08M |
|
1103
Heritage Insurance Holdings
HRTG
$990M
| $9.3M | 0.01% |
372,999
+68,300
| +22% | +$1.46M |
|
1104
Coursera
COUR
$1.49B
| $9.27M | 0.01% |
1,058,300
+877,200
| +484% | +$7.19M |
|
1105
Hallador Energy
HNRG
$763M
| $9.27M | 0.01% |
585,542
+25,387
| +5% | +$392K |
|
1106
Green Brick Partners
GRBK
$3.04B
| $9.25M | 0.01% |
147,109
+53,900
| +58% | +$3.19M |
|
1107
Outfront Media
OUT
$5.29B
| $9.24M | 0.01% |
565,921
+293,900
| +108% | +$4.59M |
|
1108
Cars.com
CARS
$650M
| $9.21M | 0.01% |
777,534
+189,734
| +32% | +$2.09M |
|
1109
Enact Holdings
ACT
$6.79B
| $9.21M | 0.01% |
247,809
-24,000
| -9% | -$852K |
|
1110
Vanguard Emerging Markets Government Bond ETF
VWOB
$6.25B
| $9.2M | 0.01% |
140,800
+30,500
| +28% | +$1.94M |
|
1111
Global Industrial
GIC
$1.48B
| $9.2M | 0.01% |
340,579
+6,000
| +2% | +$151K |
|
|
1112
Meta Platforms (Facebook)
META
$1.5T
| $9.18M | 0.01% |
12,435
-585,842
| -98% | -$362M |
|
1113
BWX Technologies
BWXT
$15.7B
| $9.16M | 0.01% |
63,600
-231,500
| -78% | -$27M |
|
1114
Accel Entertainment
ACEL
$1.01B
| $9.16M | 0.01% |
778,205
-16,000
| -2% | -$178K |
|
1115
RLI Corp
RLI
$5.82B
| $9.14M | 0.01% |
126,517
+45,917
| +57% | +$3.44M |
|
1116
Rithm Capital
RITM
$5.75B
| $9.13M | 0.01% |
808,774
-40,831
| -5% | -$450K |
|
1117
CTS Corp
CTS
$1.83B
| $9.05M | 0.01% |
212,342
-2,600
| -1% | -$105K |
|
|
TSSI
1118
TSS Inc
TSSI
$347M
| $9.04M | 0.01% |
313,500
+134,200
| +75% | +$1.76M |
|
1119
Talos Energy
TALO
$2.55B
| $9.03M | 0.01% |
1,064,341
+752,441
| +241% | +$6.03M |
|
1120
Atlanta Braves Holdings Series B
BATRK
$3.47B
| $9.01M | 0.01% |
192,680
-52,027
| -21% | -$2.13M |
|
1121
Capital Group Dividend Value ETF
CGDV
$39B
| $9M | 0.01% |
+228,000
| New | +$8.26M |
|
1122
iShares MSCI ACWI ETF
ACWI
$33.5B
| $9M | 0.01% |
+70,000
| New | +$8.39M |
|
1123
Daktronics
DAKT
$1,000M
| $8.99M | 0.01% |
594,713
+27,700
| +5% | +$381K |
|
1124
Omnicell
OMCL
$1.72B
| $8.98M | 0.01% |
305,543
+20,000
| +7% | +$598K |
|
1125
Dell
DELL
$319B
| $8.97M | 0.01% |
73,177
-633,900
| -90% | -$64.8M |
|
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Jim Simons's Q2 2025 Portfolio in Review
As of Q2 2025, Jim Simons held 4,018 positions worth $75.2B, up 14% from $66.1B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons's Q2 2025 filing shows 612 new, 1,577 increased, 1,314 reduced and 496 closed positions. Its largest new stake was UnitedHealth: 1,352,129 shares worth $422M. The largest sale was Broadcom, an estimated $527M.
By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 17% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Jim Simons's largest Q2 2025 buy was UnitedHealth: 1,352,129 shares worth $422M.
- Jim Simons added most to NVIDIA in Q2 2025, an estimated $798M increase.
- Jim Simons's biggest Q2 2025 reduction was Broadcom, cutting an estimated $527M.
- Jim Simons fully exited Advanced Micro Devices in Q2 2025, selling an estimated $328M.
- Jim Simons's ten largest holdings make up 12% of its $75.2B portfolio in Q2 2025.
- Jim Simons opened 612 new positions and closed 496 in Q2 2025.
- Jim Simons's portfolio value rose 14% quarter-over-quarter to $75.2B.
Based on Renaissance Technologies's 13F filing for Q2 2025, filed 13 Aug 2025.