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 | |
|---|---|---|---|---|---|---|
1976
Mama's Creations
MAMA
$826M
| $2.5M | ﹤0.01% |
301,200
+15,700
| +5% | +$113K |
|
1977
Mirion Technologies
MIR
$3.79B
| $2.5M | ﹤0.01% |
115,900
-527,800
| -82% | -$9.1M |
|
1978
Telos
TLS
$324M
| $2.49M | ﹤0.01% |
786,403
+40,503
| +5% | +$105K |
|
1979
RLJ Lodging Trust
RLJ
$1.66B
| $2.49M | ﹤0.01% |
+342,232
| New | +$2.47M |
|
1980
Oportun Financial
OPRT
$346M
| $2.49M | ﹤0.01% |
347,800
-139,700
| -29% | -$838K |
|
|
CTO
1981
CTO Realty Growth
CTO
$819M
| $2.48M | ﹤0.01% |
143,744
+78,101
| +119% | +$1.41M |
|
1982
iShares US Telecommunications ETF
IYZ
$1.24B
| $2.46M | ﹤0.01% |
82,500
-120,700
| -59% | -$3.32M |
|
1983
Air T
AIRT
$72.7M
| $2.46M | ﹤0.01% |
111,611
-1,000
| -0.9% | -$17.8K |
|
|
FBRT
1984
Franklin BSP Realty Trust
FBRT
$669M
| $2.46M | ﹤0.01% |
229,739
+20,839
| +10% | +$234K |
|
1985
Loar Holdings
LOAR
$6.93B
| $2.45M | ﹤0.01% |
28,400
+24,700
| +668% | +$2.14M |
|
1986
Schwab US Large- Cap ETF
SCHX
$75B
| $2.45M | ﹤0.01% |
+100,100
| New | +$2.26M |
|
1987
RXO
RXO
$3.85B
| $2.44M | ﹤0.01% |
155,500
+50,100
| +48% | +$760K |
|
|
SPYM
1988
State Street SPDR Portfolio S&P 500 ETF
SPYM
$170B
| $2.44M | ﹤0.01% |
+33,628
| New | +$2.26M |
|
|
CSGS
1989
DELISTED
CSG Systems International
CSGS
| $2.44M | ﹤0.01% |
37,312
-38,100
| -51% | -$2.38M |
|
1990
Pacer US Large Cap Cash Cows Growth Leaders ETF
COWG
$2.35B
| $2.43M | ﹤0.01% |
+69,100
| New | +$2.27M |
|
1991
MGE Energy Inc
MGEE
$3.07B
| $2.42M | ﹤0.01% |
27,400
+23,600
| +621% | +$2.12M |
|
1992
Delcath Systems
DCTH
$594M
| $2.42M | ﹤0.01% |
178,000
+106,700
| +150% | +$1.49M |
|
1993
Global Water Resources
GWRS
$219M
| $2.42M | ﹤0.01% |
237,447
-2,100
| -0.9% | -$21.6K |
|
1994
Culp Inc
CULP
$43.8M
| $2.41M | ﹤0.01% |
614,117
-15,700
| -2% | -$63.1K |
|
1995
Spero Therapeutics
SPRO
$71.8M
| $2.41M | ﹤0.01% |
832,165
-138,742
| -14% | -$200K |
|
1996
Backblaze
BLZE
$1.26B
| $2.41M | ﹤0.01% |
437,916
+50,300
| +13% | +$256K |
|
1997
Intellicheck
IDN
$75.9M
| $2.4M | ﹤0.01% |
445,400
+303,900
| +215% | +$1.16M |
|
1998
Avantis Emerging Markets Equity ETF
AVEM
$27B
| $2.4M | ﹤0.01% |
35,000
+27,800
| +386% | +$1.75M |
|
1999
State Street SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$3.37B
| $2.4M | ﹤0.01% |
96,702
-36,498
| -27% | -$899K |
|
2000
Chemung Financial Corp
CHMG
$403M
| $2.4M | ﹤0.01% |
49,422
-500
| -1% | -$22.9K |
|
Similar funds
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.