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 | |
|---|---|---|---|---|---|---|
151
FirstService
FSV
$6.3B
| $104M | 0.14% |
596,040
-41,248
| -6% | -$7.14M |
|
152
Vale
VALE
$60.9B
| $103M | 0.14% |
10,643,959
+3,459,747
| +48% | +$32.6M |
|
153
T-Mobile US
TMUS
$192B
| $103M | 0.14% |
432,891
+240,084
| +125% | +$58.6M |
|
154
Texas Roadhouse
TXRH
$13.8B
| $103M | 0.14% |
549,972
-32,128
| -6% | -$5.76M |
|
155
Clorox
CLX
$13.1B
| $103M | 0.14% |
855,167
+441,700
| +107% | +$58.9M |
|
156
Nasdaq
NDAQ
$53.1B
| $102M | 0.14% |
1,136,680
-80,720
| -7% | -$6.44M |
|
157
Ecolab
ECL
$79.8B
| $101M | 0.13% |
376,297
-461,900
| -55% | -$117M |
|
158
SoFi Technologies
SOFI
$23.2B
| $101M | 0.13% |
5,526,700
-5,575,600
| -50% | -$73.5M |
|
159
BioMarin Pharmaceuticals
BMRN
$13.5B
| $99.3M | 0.13% |
1,806,771
+911,000
| +102% | +$53.6M |
|
160
Cenovus Energy
CVE
$55B
| $99.1M | 0.13% |
7,284,894
+551,700
| +8% | +$7.17M |
|
161
Illumina
ILMN
$29.1B
| $97.5M | 0.13% |
1,021,860
-67,700
| -6% | -$5.49M |
|
162
Ventas
VTR
$44.6B
| $96.4M | 0.13% |
1,526,794
-765,734
| -33% | -$50M |
|
163
Innoviva
INVA
$1.5B
| $95.6M | 0.13% |
4,760,832
+203,600
| +4% | +$3.92M |
|
164
CF Industries
CF
$17.8B
| $95.6M | 0.13% |
1,039,000
+571,250
| +122% | +$48.7M |
|
165
Willis Towers Watson
WTW
$31.8B
| $95.6M | 0.13% |
311,757
+30,837
| +11% | +$9.56M |
|
166
Jazz Pharmaceuticals
JAZZ
$16.1B
| $95.5M | 0.13% |
900,368
-144,206
| -14% | -$15.7M |
|
167
Abercrombie & Fitch
ANF
$5.24B
| $94.6M | 0.13% |
1,141,610
-64,000
| -5% | -$4.85M |
|
168
Targa Resources
TRGP
$56.9B
| $94.4M | 0.13% |
542,286
-233,814
| -30% | -$39.3M |
|
169
EOG Resources
EOG
$75.2B
| $93.9M | 0.13% |
785,400
+80,000
| +11% | +$9.14M |
|
170
Ubiquiti
UI
$34.7B
| $93.4M | 0.12% |
226,864
+20,100
| +10% | +$7.32M |
|
171
Flowers Foods
FLO
$1.52B
| $93.3M | 0.12% |
5,839,102
+702,917
| +14% | +$12.1M |
|
172
FedEx
FDX
$76.3B
| $92.3M | 0.12% |
+406,000
| New | +$88.9M |
|
173
EPR Properties
EPR
$4.58B
| $91.9M | 0.12% |
1,577,617
-58,006
| -4% | -$3.06M |
|
174
Omnicom Group
OMC
$23.6B
| $91.9M | 0.12% |
1,276,900
+750,365
| +143% | +$55.4M |
|
175
Roku
ROKU
$22.4B
| $91.7M | 0.12% |
1,043,200
-522,200
| -33% | -$36.5M |
|
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.