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 | |
|---|---|---|---|---|---|---|
551
Hackett Group
HCKT
$278M
| $29.4M | 0.04% |
1,156,246
+95,700
| +9% | +$2.44M |
|
552
Harmony Biosciences
HRMY
$2.32B
| $29.4M | 0.04% |
929,471
+89,100
| +11% | +$2.87M |
|
553
Clover Health Investments
CLOV
$2.41B
| $29.3M | 0.04% |
10,493,600
-530,800
| -5% | -$1.75M |
|
554
Public Storage
PSA
$60.4B
| $29.2M | 0.04% |
99,534
-46,500
| -32% | -$13.8M |
|
555
CMS Energy
CMS
$22B
| $29.1M | 0.04% |
420,300
-223,500
| -35% | -$15.9M |
|
556
Workiva
WK
$3.7B
| $29.1M | 0.04% |
424,811
-36,200
| -8% | -$2.49M |
|
557
Huazhu Hotels Group
HTHT
$12.7B
| $29.1M | 0.04% |
856,885
+10,510
| +1% | +$368K |
|
558
Grupo Aeroportuario del Sureste
ASR
$8.24B
| $28.9M | 0.04% |
90,483
-600
| -0.7% | -$187K |
|
559
Lockheed Martin
LMT
$140B
| $28.8M | 0.04% |
62,100
-253,500
| -80% | -$119M |
|
|
DVAX
560
DELISTED
Dynavax Technologies
DVAX
| $28.6M | 0.04% |
2,886,529
+181,000
| +7% | +$1.91M |
|
561
UFP Industries
UFPI
$5.06B
| $28.5M | 0.04% |
286,809
+123,600
| +76% | +$12.5M |
|
562
NIO
NIO
$11.4B
| $28.4M | 0.04% |
8,289,440
+1,257,500
| +18% | +$4.69M |
|
563
Marathon Digital Holdings
MARA
$3.72B
| $28.4M | 0.04% |
+1,809,438
| New | +$25.9M |
|
564
Bank OZK
OZK
$5.69B
| $28.3M | 0.04% |
600,797
-43,600
| -7% | -$1.91M |
|
|
EXAS
565
DELISTED
Exact Sciences
EXAS
| $28.1M | 0.04% |
528,804
+494,904
| +1,460% | +$25.1M |
|
|
CWEN.A
566
DELISTED
Clearway Energy Class A
CWEN.A
| $28.1M | 0.04% |
928,429
-74,300
| -7% | -$2.08M |
|
567
Canadian Natural Resources
CNQ
$98.1B
| $28.1M | 0.04% |
894,200
-734,400
| -45% | -$22.3M |
|
568
Ennis
EBF
$556M
| $27.9M | 0.04% |
1,539,646
+60,500
| +4% | +$1.13M |
|
569
Eversource Energy
ES
$26.9B
| $27.9M | 0.04% |
437,980
+258,600
| +144% | +$15.9M |
|
570
NetApp
NTAP
$39.6B
| $27.8M | 0.04% |
260,980
-31,600
| -11% | -$3M |
|
571
Extreme Networks
EXTR
$3.2B
| $27.8M | 0.04% |
1,548,201
+32,300
| +2% | +$476K |
|
572
Oil-Dri
ODC
$1.28B
| $27.7M | 0.04% |
470,392
-3,352
| -0.7% | -$163K |
|
573
Moderna
MRNA
$25.4B
| $27.7M | 0.04% |
1,003,900
-356,200
| -26% | -$9.38M |
|
|
BELFB
574
Bel Fuse Inc Class B
BELFB
$4.25B
| $27.7M | 0.04% |
283,451
-40,300
| -12% | -$3.04M |
|
575
Vanguard Total International Bond ETF
BNDX
$82.9B
| $27.7M | 0.04% |
+559,200
| New | +$27.5M |
|
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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.