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 | |
|---|---|---|---|---|---|---|
1226
SI-BONE Inc
SIBN
$849M
| $7.9M | 0.01% |
419,700
+206,600
| +97% | +$3.43M |
|
|
GRAL
1227
GRAIL Inc
GRAL
$3.02B
| $7.89M | 0.01% |
+153,500
| New | +$5.56M |
|
1228
Syndax Pharmaceuticals
SNDX
$1.75B
| $7.85M | 0.01% |
837,700
+156,273
| +23% | +$1.72M |
|
1229
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.59B
| $7.83M | 0.01% |
+284,400
| New | +$7.51M |
|
|
THS
1230
DELISTED
Treehouse Foods
THS
| $7.83M | 0.01% |
403,100
+226,800
| +129% | +$5.08M |
|
|
CBL
1231
CBL Properties
CBL
$1.77B
| $7.81M | 0.01% |
307,594
+13,300
| +5% | +$328K |
|
1232
AGCO
AGCO
$7.01B
| $7.81M | 0.01% |
+75,700
| New | +$7.22M |
|
1233
HF Sinclair
DINO
$16B
| $7.81M | 0.01% |
190,005
-178,600
| -48% | -$6.15M |
|
1234
KNOT Offshore Partners
KNOP
$372M
| $7.8M | 0.01% |
1,246,558
+63,723
| +5% | +$416K |
|
1235
Wipro
WIT
$19.1B
| $7.78M | 0.01% |
2,577,200
+1,185,800
| +85% | +$3.45M |
|
|
ACH
1236
Accendra Health
ACH
$85.4M
| $7.77M | 0.01% |
854,250
-54,600
| -6% | -$402K |
|
1237
VanEck High Yield Muni ETF
HYD
$4.41B
| $7.77M | 0.01% |
154,764
+120,541
| +352% | +$6.02M |
|
1238
Onto Innovation
ONTO
$20.7B
| $7.75M | 0.01% |
+76,774
| New | +$8.2M |
|
1239
McGrath RentCorp
MGRC
$2.95B
| $7.73M | 0.01% |
66,695
-25,400
| -28% | -$2.82M |
|
1240
Financial Institutions
FISI
$828M
| $7.73M | 0.01% |
301,000
-1,900
| -0.6% | -$47.4K |
|
1241
BOK Financial
BOKF
$8.83B
| $7.71M | 0.01% |
78,977
+40,400
| +105% | +$3.8M |
|
1242
DTE Energy
DTE
$28.9B
| $7.71M | 0.01% |
58,200
+29,300
| +101% | +$3.94M |
|
1243
Huntsman Corp
HUN
$1.81B
| $7.7M | 0.01% |
739,400
+201,400
| +37% | +$2.45M |
|
1244
Century Communities
CCS
$2.03B
| $7.7M | 0.01% |
136,654
+90,000
| +193% | +$5.04M |
|
1245
W.P. Carey
WPC
$16.3B
| $7.67M | 0.01% |
123,000
+68,500
| +126% | +$4.22M |
|
1246
Heritage Financial
HFWA
$1.23B
| $7.67M | 0.01% |
321,534
-10,896
| -3% | -$251K |
|
1247
Nexstar Media Group
NXST
$5.72B
| $7.66M | 0.01% |
44,305
+3,100
| +8% | +$508K |
|
1248
NACCO Industries
NC
$322M
| $7.66M | 0.01% |
172,918
-3,500
| -2% | -$127K |
|
1249
East-West Bancorp
EWBC
$18.6B
| $7.65M | 0.01% |
75,733
-33,600
| -31% | -$2.98M |
|
|
CDTX
1250
DELISTED
Cidara Therapeutics
CDTX
| $7.64M | 0.01% |
156,777
+64,260
| +69% | +$1.54M |
|
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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.