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 | |
|---|---|---|---|---|---|---|
|
OLOX
3451
Olenox Industries
OLOX
$4.14M
| $27.5K | ﹤0.01% |
+67
| New | +$25.5K |
|
3452
BeyondSpring
BYSI
$41M
| $27.3K | ﹤0.01% |
11,600
| – | – |
|
|
REE
3453
DELISTED
REE Automotive
REE
| $26.9K | ﹤0.01% |
45,136
-21,541
| -32% | -$37.9K |
|
|
DXST
3454
Decent Holding Inc
DXST
$5.78M
| $26.2K | ﹤0.01% |
+764
| New | +$22.6K |
|
3455
DSS Inc
DSS
$5.18M
| $25.8K | ﹤0.01% |
27,448
+1,200
| +5% | +$1.1K |
|
3456
Beam Global
BEEM
$25.5M
| $25.7K | ﹤0.01% |
+17,600
| New | +$28.1K |
|
3457
Moving iMage Technologies
MITQ
$5.56M
| $24.5K | ﹤0.01% |
38,315
-40,485
| -51% | -$24.4K |
|
3458
Celularity
CELU
$20.1M
| $23.9K | ﹤0.01% |
+12,200
| New | +$22.2K |
|
|
BSIN
3459
Big Sky Industrial
BSIN
$71.4M
| $23.7K | ﹤0.01% |
16,900
-47,600
| -74% | -$61.2K |
|
3460
Silynxcom
SYNX
$7.03M
| $23.6K | ﹤0.01% |
+13,700
| New | +$25K |
|
3461
Scienjoy Holding
SJ
$39.1M
| $23.3K | ﹤0.01% |
28,804
+100
| +0.3% | +$91 |
|
|
FRSX
3462
Foresight Autonomous Holdings
FRSX
$3.93M
| $22.6K | ﹤0.01% |
2,317
-186
| -7% | -$2.32K |
|
3463
Offerpad Solutions
OPAD
$21.8M
| $22.6K | ﹤0.01% |
2,485
+350
| +16% | +$4.03K |
|
|
JBDI
3464
JBDI Holdings
JBDI
$12.9M
| $22.2K | ﹤0.01% |
+10,550
| New | +$20.7K |
|
|
STRR
3465
DELISTED
Star Equity Holdings
STRR
| $22.1K | ﹤0.01% |
11,060
-9,744
| -47% | -$20.7K |
|
3466
Matinas BioPharma
MTNB
$1.49M
| $22K | ﹤0.01% |
24,670
+2,300
| +10% | +$1.69K |
|
|
FLZH
3467
Flash Sports & Media Holdings
FLZH
$74.9M
| $21.3K | ﹤0.01% |
2,836
+672
| +31% | +$6.8K |
|
3468
Planet Image International
YIBO
$77.6M
| $21.2K | ﹤0.01% |
+14,700
| New | +$19.9K |
|
|
AKTX
3469
Akari Therapeutics
AKTX
$12.3M
| $20.4K | ﹤0.01% |
435
-25
| -5% | -$1.26K |
|
3470
Dragonfly Energy
DFLI
$18.6M
| $20.2K | ﹤0.01% |
+12,290
| New | +$57.7K |
|
|
XMAX
3471
XMAX Inc
XMAX
$565M
| $20.1K | ﹤0.01% |
+14,600
| New | +$15.7K |
|
3472
SAB Biotherapeutics
SABS
$341M
| $19.4K | ﹤0.01% |
11,030
+1,000
| +10% | +$1.66K |
|
3473
DNA X Inc
SONM
$5.05M
| $18.8K | ﹤0.01% |
+856
| New | +$21.1K |
|
3474
Intelligent Bio Solutions
INBS
$9.05M
| $18.7K | ﹤0.01% |
+1,090
| New | +$15.7K |
|
|
AMTD
3475
AMTD IDEA Group
AMTD
$72.1M
| $18.7K | ﹤0.01% |
19,019
+5,553
| +41% | +$5.66K |
|
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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.