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 | |
|---|---|---|---|---|---|---|
1176
iShares California Muni Bond ETF
CMF
$4.63B
| $8.43M | 0.01% |
151,300
+132,200
| +692% | +$7.34M |
|
1177
State Street SPDR Portfolio S&P 500 Growth ETF
SPYG
$55.6B
| $8.43M | 0.01% |
+88,400
| New | +$7.58M |
|
1178
RB Global
RBA
$15.9B
| $8.42M | 0.01% |
79,284
-98,600
| -55% | -$10.1M |
|
1179
Iovance Biotherapeutics
IOVA
$2.98B
| $8.41M | 0.01% |
4,887,200
+1,375,800
| +39% | +$3.42M |
|
1180
Birkenstock
BIRK
$7.99B
| $8.39M | 0.01% |
170,500
-102,500
| -38% | -$5.27M |
|
1181
ANI Pharmaceuticals
ANIP
$1.72B
| $8.38M | 0.01% |
128,387
-91,115
| -42% | -$5.93M |
|
1182
Equity Residential
EQR
$24.9B
| $8.38M | 0.01% |
124,114
-84,786
| -41% | -$5.83M |
|
1183
Diebold Nixdorf
DBD
$2.48B
| $8.36M | 0.01% |
150,900
+76,600
| +103% | +$3.59M |
|
1184
WaFd
WAFD
$2.81B
| $8.35M | 0.01% |
285,229
+10,700
| +4% | +$303K |
|
1185
YieldMax Ultra Option Income Strategy ETF
ULTY
$765M
| $8.32M | 0.01% |
132,133
+127,483
| +2,742% | +$7.69M |
|
1186
Kite Realty
KRG
$5.29B
| $8.32M | 0.01% |
367,203
-215,900
| -37% | -$4.75M |
|
1187
Weave Communications
WEAV
$402M
| $8.31M | 0.01% |
998,400
+90,900
| +10% | +$880K |
|
1188
Shoals Technologies Group
SHLS
$1.4B
| $8.31M | 0.01% |
1,954,400
+1,397,600
| +251% | +$6.07M |
|
1189
KT
KT
$9.09B
| $8.31M | 0.01% |
399,693
+143,606
| +56% | +$2.73M |
|
1190
G. Willi-Food International
WILC
$395M
| $8.3M | 0.01% |
440,152
-10,150
| -2% | -$159K |
|
|
GTY
1191
Getty Realty Corp
GTY
$2.07B
| $8.3M | 0.01% |
300,224
-152,700
| -34% | -$4.38M |
|
1192
Allot
ALLT
$386M
| $8.3M | 0.01% |
970,299
+21,300
| +2% | +$153K |
|
1193
Stewart Information Services
STC
$2.04B
| $8.29M | 0.01% |
127,400
+6,200
| +5% | +$399K |
|
1194
Braze
BRZE
$3.13B
| $8.29M | 0.01% |
295,000
+202,552
| +219% | +$6.4M |
|
1195
Core Molding Technologies
CMT
$223M
| $8.28M | 0.01% |
499,047
+16,300
| +3% | +$256K |
|
1196
iShares TIPS Bond ETF
TIP
$14.8B
| $8.28M | 0.01% |
75,200
+55,800
| +288% | +$6.09M |
|
1197
Alphatec Holdings
ATEC
$1.48B
| $8.26M | 0.01% |
744,200
+527,732
| +244% | +$6.06M |
|
1198
Highwoods Properties
HIW
$3.5B
| $8.26M | 0.01% |
265,600
+139,500
| +111% | +$4.11M |
|
1199
Repligen
RGEN
$9.34B
| $8.25M | 0.01% |
+66,304
| New | +$8.44M |
|
1200
Paylocity
PCTY
$7.7B
| $8.22M | 0.01% |
+45,384
| New | +$8.52M |
|
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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.