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 | |
|---|---|---|---|---|---|---|
1426
BlackRock US Equity Factor Rotation ETF
DYNF
$40.4B
| $5.84M | 0.01% |
+107,200
| New | +$5.38M |
|
1427
Xperi
XPER
$320M
| $5.83M | 0.01% |
737,583
+15,100
| +2% | +$114K |
|
1428
Sierra Bancorp
BSRR
$532M
| $5.82M | 0.01% |
196,112
-1,700
| -0.9% | -$46.2K |
|
1429
Grocery Outlet
GO
$1.07B
| $5.82M | 0.01% |
+468,300
| New | +$6.66M |
|
|
UCTT
1430
Ultra Clean Holdings
UCTT
$4.21B
| $5.81M | 0.01% |
257,200
+197,400
| +330% | +$4.05M |
|
1431
DHI Group
DHX
$174M
| $5.79M | 0.01% |
1,949,029
-157,686
| -7% | -$305K |
|
1432
Eton Pharmaceutcials
ETON
$1.12B
| $5.78M | 0.01% |
405,900
+131,900
| +48% | +$2.09M |
|
1433
Kontoor Brands
KTB
$4.65B
| $5.78M | 0.01% |
87,600
-400
| -0.5% | -$25.9K |
|
1434
Crawford & Co Class A
CRD.A
$632M
| $5.77M | 0.01% |
545,824
-18,300
| -3% | -$195K |
|
1435
Grupo SIMEC
SIM
$4.68B
| $5.77M | 0.01% |
213,570
-1,084
| -0.5% | -$29K |
|
1436
Vanguard Morningstar Mid-Cap ETF
VO
$111B
| $5.76M | 0.01% |
82,400
+57,600
| +232% | +$3.78M |
|
1437
China Yuchai International
CYD
$1.71B
| $5.76M | 0.01% |
241,080
+12,900
| +6% | +$226K |
|
1438
Brighthouse Financial
BHF
$3.42B
| $5.76M | 0.01% |
107,100
-1,600
| -1% | -$89.9K |
|
1439
Gorman-Rupp
GRC
$2.11B
| $5.73M | 0.01% |
156,115
+17,000
| +12% | +$611K |
|
1440
CubeSmart
CUBE
$9.4B
| $5.72M | 0.01% |
134,688
-31,700
| -19% | -$1.31M |
|
1441
Polaris
PII
$3.91B
| $5.71M | 0.01% |
140,400
-479,800
| -77% | -$18.1M |
|
1442
Amprius Technologies
AMPX
$1.74B
| $5.67M | 0.01% |
1,346,600
+1,332,200
| +9,251% | +$3.75M |
|
1443
Knife River
KNF
$3.74B
| $5.67M | 0.01% |
69,400
-85,600
| -55% | -$7.79M |
|
|
CCRD
1444
DELISTED
CoreCard
CCRD
| $5.66M | 0.01% |
195,297
+14,400
| +8% | +$338K |
|
1445
Envista
NVST
$4.51B
| $5.65M | 0.01% |
289,400
+153,500
| +113% | +$2.67M |
|
1446
Power Integrations
POWI
$3.48B
| $5.65M | 0.01% |
101,100
-7,500
| -7% | -$385K |
|
1447
Powell Industries
POWL
$7.43B
| $5.65M | 0.01% |
80,502
-65,103
| -45% | -$3.93M |
|
|
BRT
1448
BRT Apartments
BRT
$269M
| $5.63M | 0.01% |
359,991
-8,000
| -2% | -$126K |
|
1449
Hanmi Financial
HAFC
$963M
| $5.62M | 0.01% |
227,523
+3,571
| +2% | +$81.6K |
|
1450
Knowles
KN
$3.23B
| $5.62M | 0.01% |
318,674
-223,900
| -41% | -$3.61M |
|
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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.