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 | |
|---|---|---|---|---|---|---|
176
NRG Energy
NRG
$25.2B
| $91.6M | 0.12% |
570,316
+449,500
| +372% | +$59.2M |
|
177
CAVA Group
CAVA
$7.08B
| $91.5M | 0.12% |
1,085,956
+167,706
| +18% | +$14.3M |
|
178
Las Vegas Sands
LVS
$29.6B
| $91.2M | 0.12% |
2,095,079
-359,300
| -15% | -$14M |
|
179
AstraZeneca
AZN
$246B
| $91.1M | 0.12% |
651,887
+502,287
| +336% | +$70.4M |
|
180
Dollar Tree
DLTR
$24.6B
| $90.4M | 0.12% |
912,803
+428,100
| +88% | +$36.9M |
|
181
Clear Secure
YOU
$4.97B
| $89.4M | 0.12% |
3,219,359
+395,200
| +14% | +$10.1M |
|
182
Brown & Brown
BRO
$23.9B
| $89M | 0.12% |
803,112
+630,112
| +364% | +$70.8M |
|
183
Campbell Soup
CPB
$6.78B
| $88.4M | 0.12% |
2,884,827
+1,022,600
| +55% | +$36M |
|
184
Zscaler
ZS
$28.9B
| $87.6M | 0.12% |
278,900
+267,018
| +2,247% | +$66.6M |
|
185
Pinterest
PINS
$13.4B
| $87.5M | 0.12% |
2,438,786
-774,876
| -24% | -$23.5M |
|
186
Gartner
IT
$11.8B
| $86.5M | 0.12% |
214,009
+126,200
| +144% | +$52.8M |
|
|
BPMC
187
DELISTED
Blueprint Medicines
BPMC
| $86.5M | 0.12% |
+674,500
| New | +$70.1M |
|
188
GSK
GSK
$102B
| $86.4M | 0.12% |
2,250,853
+268,700
| +14% | +$10.3M |
|
189
Seagate
STX
$186B
| $84.5M | 0.11% |
585,293
+513,300
| +713% | +$53.1M |
|
190
UBS Group
UBS
$176B
| $83.8M | 0.11% |
2,477,891
+1,386,500
| +127% | +$42.9M |
|
191
Enova International
ENVA
$6.4B
| $83.7M | 0.11% |
750,537
-23,657
| -3% | -$2.26M |
|
192
Tapestry
TPR
$32.4B
| $83.5M | 0.11% |
951,000
-450,000
| -32% | -$34.1M |
|
193
Natera
NTRA
$45.1B
| $83.4M | 0.11% |
493,800
+146,100
| +42% | +$22.8M |
|
194
Winmark
WINA
$1.33B
| $83.3M | 0.11% |
220,496
+44,965
| +26% | +$17.4M |
|
195
Morningstar
MORN
$7.33B
| $83.2M | 0.11% |
265,170
+29,900
| +13% | +$8.85M |
|
196
AB InBev
BUD
$159B
| $82.5M | 0.11% |
1,201,200
+279,100
| +30% | +$18.7M |
|
197
EQT Corp
EQT
$34B
| $82.4M | 0.11% |
1,412,365
+871,000
| +161% | +$47M |
|
198
IAMGOLD
IAG
$10.4B
| $82.2M | 0.11% |
11,189,766
-2,738,530
| -20% | -$19.2M |
|
199
Edwards Lifesciences
EW
$54B
| $81.4M | 0.11% |
1,040,386
+33,786
| +3% | +$2.52M |
|
200
Take-Two Interactive
TTWO
$46.8B
| $81.2M | 0.11% |
+334,239
| New | +$75.3M |
|
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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.