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 | |
|---|---|---|---|---|---|---|
2976
MarketWise
MKTW
$55.5M
| $366K | ﹤0.01% |
18,499
+659
| +4% | +$10.1K |
|
|
JCTC
2977
Jewett-Cameron Trading
JCTC
$10.3M
| $362K | ﹤0.01% |
97,028
-2,000
| -2% | -$7.68K |
|
2978
One Stop Systems
OSS
$327M
| $362K | ﹤0.01% |
101,860
+9,000
| +10% | +$25.1K |
|
2979
Transcontinental Realty Investors
TCI
$318M
| $358K | ﹤0.01% |
8,400
| – | – |
|
|
ELSE
2980
DELISTED
Electro-Sensors
ELSE
| $358K | ﹤0.01% |
84,600
-600
| -0.7% | -$2.5K |
|
2981
First Trust Natural Gas ETF
FCG
$639M
| $356K | ﹤0.01% |
15,400
+1,700
| +12% | +$38K |
|
2982
CF Bankshares
CFBK
$235M
| $354K | ﹤0.01% |
+14,779
| New | +$339K |
|
|
NINE
2983
DELISTED
Nine Energy Service
NINE
| $353K | ﹤0.01% |
457,536
-1,900
| -0.4% | -$1.39K |
|
|
SEM
2984
DELISTED
Select Medical
SEM
| $353K | ﹤0.01% |
23,235
-305,065
| -93% | -$4.76M |
|
2985
Magyar Bancorp
MGYR
$126M
| $352K | ﹤0.01% |
21,089
+4,503
| +27% | +$67.6K |
|
2986
Harvard Bioscience
HBIO
$28.1M
| $351K | ﹤0.01% |
79,198
-9,172
| -10% | -$38.3K |
|
2987
PrimeEnergy Resources
PNRG
$316M
| $351K | ﹤0.01% |
2,400
-600
| -20% | -$104K |
|
2988
Scholastic
SCHL
$784M
| $350K | ﹤0.01% |
+16,700
| New | +$304K |
|
2989
Betterware México
BWMX
$611M
| $349K | ﹤0.01% |
40,300
-200
| -0.5% | -$1.87K |
|
2990
EyePoint Inc
EYPT
$1.16B
| $348K | ﹤0.01% |
37,000
-80,300
| -68% | -$555K |
|
2991
EVI Industries
EVI
$206M
| $347K | ﹤0.01% |
15,897
+1,100
| +7% | +$19.6K |
|
2992
Dimensional World ex US Core Equity 2 ETF
DFAX
$12.5B
| $347K | ﹤0.01% |
+11,800
| New | +$325K |
|
2993
Werewolf Therapeutics
HOWL
$18.8M
| $345K | ﹤0.01% |
316,300
+252,400
| +395% | +$260K |
|
2994
Fidelity Small-Mid Multifactor ETF
FSMD
$2.62B
| $344K | ﹤0.01% |
+8,300
| New | +$327K |
|
2995
Barnwell Industries
BRN
$13.9M
| $344K | ﹤0.01% |
304,325
-18,071
| -6% | -$24.6K |
|
|
ZH
2996
Zhihu
ZH
$272M
| $343K | ﹤0.01% |
86,288
-1,323
| -2% | -$5.13K |
|
2997
Central Plains Bancshares
CPBI
$87.6M
| $340K | ﹤0.01% |
22,500
+100
| +0.4% | +$1.47K |
|
2998
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.56B
| $340K | ﹤0.01% |
5,685
-66,615
| -92% | -$3.81M |
|
2999
CareCloud
CCLD
$104M
| $338K | ﹤0.01% |
143,300
+6,500
| +5% | +$12.4K |
|
3000
Precision BioSciences
DTIL
$201M
| $337K | ﹤0.01% |
80,277
-2,700
| -3% | -$13.3K |
|
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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.