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 | |
|---|---|---|---|---|---|---|
626
Xylem
XYL
$28.5B
| $24.3M | 0.03% |
187,671
-314,600
| -63% | -$38.1M |
|
627
Carriage Services
CSV
$535M
| $24.1M | 0.03% |
526,700
+13,800
| +3% | +$576K |
|
628
Yum China
YUMC
$16.4B
| $24M | 0.03% |
+536,500
| New | +$24M |
|
629
AvalonBay Communities
AVB
$25.7B
| $23.9M | 0.03% |
+117,577
| New | +$24M |
|
630
Cosan
CSAN
$2.52B
| $23.7M | 0.03% |
4,693,982
+250,700
| +6% | +$1.35M |
|
631
Regeneron Pharmaceuticals
REGN
$82.2B
| $23.7M | 0.03% |
45,062
-33,839
| -43% | -$18.9M |
|
632
Amkor Technology
AMKR
$13.8B
| $23.6M | 0.03% |
1,125,100
-244,600
| -18% | -$4.51M |
|
633
Zebra Technologies
ZBRA
$17.9B
| $23.6M | 0.03% |
76,531
-198,800
| -72% | -$54M |
|
634
Remitly
RELY
$5.1B
| $23.6M | 0.03% |
1,256,401
+839,254
| +201% | +$17.5M |
|
635
Crown Castle
CCI
$31.5B
| $23.5M | 0.03% |
+229,103
| New | +$23.2M |
|
636
Goodyear
GT
$1.74B
| $23.4M | 0.03% |
+2,256,754
| New | +$23.9M |
|
637
QCR Holdings
QCRH
$1.73B
| $23.3M | 0.03% |
343,772
+24,900
| +8% | +$1.66M |
|
638
Lowe's Companies
LOW
$121B
| $23.3M | 0.03% |
105,201
-63,129
| -38% | -$14.1M |
|
639
Legend Biotech
LEGN
$3.99B
| $23.3M | 0.03% |
656,300
-54,600
| -8% | -$1.77M |
|
|
GOOD
640
Gladstone Commercial Corp
GOOD
$630M
| $23.2M | 0.03% |
1,620,054
+171,500
| +12% | +$2.43M |
|
641
Curtiss-Wright
CW
$26.7B
| $23.2M | 0.03% |
47,500
-11,500
| -19% | -$4.54M |
|
642
Ambarella
AMBA
$3.66B
| $23.2M | 0.03% |
350,849
-6,851
| -2% | -$363K |
|
643
NovoCure
NVCR
$2.05B
| $23.1M | 0.03% |
1,300,054
+531,400
| +69% | +$9.26M |
|
644
State Street SPDR Portfolio High Yield Bond ETF
SPHY
$12B
| $23.1M | 0.03% |
968,800
-243,257
| -20% | -$5.66M |
|
645
Tanger
SKT
$4.42B
| $22.8M | 0.03% |
746,772
-157,300
| -17% | -$4.82M |
|
|
CVSA
646
Covista Inc
CVSA
$4.36B
| $22.8M | 0.03% |
179,400
-30,300
| -14% | -$3.58M |
|
647
HubSpot
HUBS
$10.5B
| $22.8M | 0.03% |
41,000
+39,900
| +3,627% | +$23.4M |
|
648
Bank of Montreal
BMO
$129B
| $22.8M | 0.03% |
205,895
+160,700
| +356% | +$16.2M |
|
649
Unitil
UTL
$984M
| $22.7M | 0.03% |
434,440
+1,900
| +0.4% | +$105K |
|
650
Payoneer
PAYO
$2.41B
| $22.7M | 0.03% |
3,307,200
-797,700
| -19% | -$5.41M |
|
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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.