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 | |
|---|---|---|---|---|---|---|
901
iShares 0-5 Year Investment Grade Corporate Bond ETF
SLQD
$2.38B
| $13.4M | 0.02% |
265,500
-108,800
| -29% | -$5.46M |
|
902
Park Aerospace
PKE
$828M
| $13.3M | 0.02% |
902,997
-16,600
| -2% | -$225K |
|
903
Privia Health
PRVA
$2.75B
| $13.3M | 0.02% |
579,100
+268,700
| +87% | +$6.22M |
|
904
Genco Shipping & Trading
GNK
$1.1B
| $13.3M | 0.02% |
1,014,604
-32,900
| -3% | -$435K |
|
905
Amphastar Pharmaceuticals
AMPH
$850M
| $13.2M | 0.02% |
576,500
+81,500
| +16% | +$2.02M |
|
906
LeMaitre Vascular
LMAT
$1.88B
| $13.2M | 0.02% |
158,700
+4,400
| +3% | +$368K |
|
907
InterContinental Hotels
IHG
$23.9B
| $13.1M | 0.02% |
113,900
-20,000
| -15% | -$2.24M |
|
|
OLO
908
DELISTED
Olo Inc
OLO
| $13.1M | 0.02% |
1,470,660
-491,540
| -25% | -$3.81M |
|
909
CVR Energy
CVI
$3.52B
| $13.1M | 0.02% |
486,584
-176,600
| -27% | -$3.89M |
|
910
Patrick Industries
PATK
$2.79B
| $13M | 0.02% |
+141,403
| New | +$12M |
|
911
Cable One
CABO
$191M
| $13M | 0.02% |
96,000
+57,900
| +152% | +$10.9M |
|
912
Dorman Products
DORM
$3.97B
| $13M | 0.02% |
106,100
+21,900
| +26% | +$2.66M |
|
|
LKFT
913
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.83B
| $13M | 0.02% |
464,700
+133,900
| +40% | +$3.59M |
|
914
Perion Network
PERI
$377M
| $13M | 0.02% |
1,279,048
+207,639
| +19% | +$1.98M |
|
915
O-I Glass
OI
$1.04B
| $13M | 0.02% |
878,800
+399,800
| +83% | +$5.11M |
|
916
Civeo
CVEO
$345M
| $12.9M | 0.02% |
559,632
-54,716
| -9% | -$1.16M |
|
917
Western Digital
WDC
$157B
| $12.9M | 0.02% |
201,833
+131,900
| +189% | +$6.28M |
|
|
GTLS
918
DELISTED
Chart Industries
GTLS
| $12.9M | 0.02% |
78,400
-28,800
| -27% | -$4.23M |
|
919
Check Point Software Technologies
CHKP
$13.2B
| $12.9M | 0.02% |
58,208
+42,008
| +259% | +$9.24M |
|
920
MiMedx Group
MDXG
$624M
| $12.9M | 0.02% |
2,107,777
+177,500
| +9% | +$1.18M |
|
921
SPDR Gold Trust
GLD
$144B
| $12.8M | 0.02% |
42,000
+21,300
| +103% | +$6.45M |
|
922
Euronet Worldwide
EEFT
$2.66B
| $12.8M | 0.02% |
126,200
-128,145
| -50% | -$13.2M |
|
923
WSFS Financial
WSFS
$4.15B
| $12.8M | 0.02% |
232,426
+104,200
| +81% | +$5.41M |
|
924
California Water Service
CWT
$3.09B
| $12.8M | 0.02% |
281,000
+75,600
| +37% | +$3.62M |
|
925
Great Southern Bancorp
GSBC
$877M
| $12.8M | 0.02% |
217,200
+6,500
| +3% | +$363K |
|
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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.