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 | |
|---|---|---|---|---|---|---|
1701
Rush Enterprises Class A
RUSHA
$9.62B
| $3.73M | 0.01% |
72,500
+68,100
| +1,548% | +$3.46M |
|
|
BWAY
1702
Brainsway
BWAY
$661M
| $3.73M | 0.01% |
567,720
-28,800
| -5% | -$143K |
|
1703
Alaska Air
ALK
$5.3B
| $3.73M | 0.01% |
75,400
-1,159,200
| -94% | -$56.3M |
|
1704
Marchex
MCHX
$80.6M
| $3.73M | 0.01% |
1,702,768
-14,996
| -0.9% | -$24.7K |
|
1705
Advanced Energy
AEIS
$13.2B
| $3.73M | 0.01% |
28,122
+12,600
| +81% | +$1.39M |
|
1706
HDFC Bank
HDB
$119B
| $3.73M | 0.01% |
+97,200
| New | +$3.52M |
|
|
GIFI
1707
DELISTED
Gulf Island Fabrication
GIFI
| $3.72M | ﹤0.01% |
559,324
-13,500
| -2% | -$88.3K |
|
1708
Tactile Systems Technology
TCMD
$537M
| $3.71M | ﹤0.01% |
366,000
+1,900
| +0.5% | +$21.7K |
|
1709
Direxion Daily 20+ Year Treasury Bull 3X ETF
TMF
$2.17B
| $3.71M | ﹤0.01% |
+94,540
| New | +$3.65M |
|
|
SGMO
1710
DELISTED
SANGAMO THERAPEUTICS INC
SGMO
| $3.7M | ﹤0.01% |
6,839,434
+3,671,327
| +116% | +$2.18M |
|
1711
Bar Harbor Bankshares
BHB
$681M
| $3.7M | ﹤0.01% |
123,484
+17,500
| +17% | +$512K |
|
1712
iShares US Real Estate ETF
IYR
$4.58B
| $3.7M | ﹤0.01% |
39,000
+35,300
| +954% | +$3.29M |
|
1713
Personalis
PSNL
$1.54B
| $3.69M | ﹤0.01% |
563,243
-470,711
| -46% | -$2.18M |
|
1714
Celldex Therapeutics
CLDX
$3.35B
| $3.69M | ﹤0.01% |
181,388
+34,800
| +24% | +$677K |
|
1715
Latham Group
SWIM
$889M
| $3.68M | ﹤0.01% |
577,100
-171,000
| -23% | -$994K |
|
1716
Southern First Bancshares
SFST
$612M
| $3.67M | ﹤0.01% |
96,407
-2,900
| -3% | -$102K |
|
1717
Viasat
VSAT
$11.4B
| $3.67M | ﹤0.01% |
+251,049
| New | +$2.54M |
|
1718
Richardson Electronics
RELL
$300M
| $3.66M | ﹤0.01% |
379,677
-2,300
| -0.6% | -$20.9K |
|
1719
iShares MSCI Global Min Vol Factor ETF
ACWV
$3.38B
| $3.66M | ﹤0.01% |
30,900
-50,200
| -62% | -$5.85M |
|
1720
Horace Mann Educators
HMN
$2.1B
| $3.65M | ﹤0.01% |
84,900
+75,600
| +813% | +$3.18M |
|
|
PSIX
1721
Power Solutions International
PSIX
$947M
| $3.65M | ﹤0.01% |
+56,396
| New | +$2.09M |
|
1722
iShares Russell 1000 ETF
IWB
$50.5B
| $3.63M | ﹤0.01% |
+10,700
| New | +$3.36M |
|
|
FLOC
1723
Flowco Holdings
FLOC
$1B
| $3.63M | ﹤0.01% |
203,700
+97,500
| +92% | +$1.86M |
|
|
HIVE
1724
HIVE Digital Technologies
HIVE
$706M
| $3.63M | ﹤0.01% |
+2,015,200
| New | +$3.55M |
|
1725
Helmerich & Payne
HP
$4.3B
| $3.62M | ﹤0.01% |
239,000
+145,400
| +155% | +$2.67M |
|
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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.