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 | |
|---|---|---|---|---|---|---|
926
Pultegroup
PHM
$24.6B
| $12.8M | 0.02% |
+120,967
| New | +$12.2M |
|
927
Mizuho Financial
MFG
$132B
| $12.7M | 0.02% |
2,291,703
+290,000
| +14% | +$1.5M |
|
928
Employers Holdings
EIG
$864M
| $12.7M | 0.02% |
269,900
-68,700
| -20% | -$3.31M |
|
929
Northeast Bank
NBN
$1.15B
| $12.7M | 0.02% |
142,345
+100
| +0.1% | +$8.53K |
|
930
BGC Group
BGC
$5.12B
| $12.7M | 0.02% |
1,237,048
+379,500
| +44% | +$3.48M |
|
931
Calix
CALX
$2.51B
| $12.6M | 0.02% |
237,618
+132,300
| +126% | +$5.66M |
|
932
Boise Cascade
BCC
$2.94B
| $12.6M | 0.02% |
145,349
-1,400
| -1% | -$127K |
|
933
Emcor
EME
$36.8B
| $12.6M | 0.02% |
23,500
-63,420
| -73% | -$28M |
|
934
First Trust Preferred Securities and Income ETF
FPE
$6.33B
| $12.5M | 0.02% |
704,738
+235,050
| +50% | +$4.1M |
|
935
Safe Bulkers
SB
$760M
| $12.5M | 0.02% |
3,470,096
-37,108
| -1% | -$133K |
|
936
Xcel Energy
XEL
$49.1B
| $12.5M | 0.02% |
183,700
-383,900
| -68% | -$26.6M |
|
937
Gibraltar Industries
ROCK
$1.46B
| $12.4M | 0.02% |
209,965
-40,400
| -16% | -$2.31M |
|
938
Kodiak Gas Services
KGS
$6.26B
| $12.4M | 0.02% |
361,322
-327,100
| -48% | -$11.3M |
|
939
AtriCure
ATRC
$2.22B
| $12.4M | 0.02% |
377,700
+69,800
| +23% | +$2.27M |
|
940
NMI Holdings
NMIH
$3.38B
| $12.4M | 0.02% |
292,953
+105,300
| +56% | +$3.96M |
|
941
First Trust Exchange-Traded Fund IV First Trust Low Duration Opportunities ETF
LMBS
$6.39B
| $12.4M | 0.02% |
250,800
-73,400
| -23% | -$3.59M |
|
942
Hawkins
HWKN
$2.7B
| $12.3M | 0.02% |
86,898
-16,100
| -16% | -$2.03M |
|
|
CFLT
943
DELISTED
Confluent
CFLT
| $12.3M | 0.02% |
+495,200
| New | +$11.2M |
|
944
Krystal Biotech
KRYS
$9.85B
| $12.3M | 0.02% |
89,800
+78,600
| +702% | +$11.5M |
|
|
TIGR
945
UP Fintech Holding
TIGR
$818M
| $12.3M | 0.02% |
1,279,100
+395,400
| +45% | +$3.3M |
|
946
Camden National
CAC
$990M
| $12.3M | 0.02% |
304,100
+31,100
| +11% | +$1.22M |
|
947
Innospec
IOSP
$2.29B
| $12.3M | 0.02% |
146,600
+19,700
| +16% | +$1.72M |
|
948
Lincoln Educational Services
LINC
$945M
| $12.3M | 0.02% |
534,778
-43,900
| -8% | -$881K |
|
|
ALX
949
Alexander's
ALX
$1.39B
| $12.3M | 0.02% |
54,626
-2,500
| -4% | -$538K |
|
950
Porch Group
PRCH
$1.83B
| $12.3M | 0.02% |
1,040,220
-628,281
| -38% | -$5.4M |
|
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.