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 | |
|---|---|---|---|---|---|---|
201
MSCI
MSCI
$40.8B
| $81M | 0.11% |
140,521
+75,300
| +115% | +$41.7M |
|
202
Peabody Energy
BTU
$2.98B
| $81M | 0.11% |
6,034,990
+636,900
| +12% | +$8.41M |
|
203
Occidental Petroleum
OXY
$59B
| $80.9M | 0.11% |
1,925,393
+815,544
| +73% | +$34.1M |
|
204
RELX
RELX
$61.7B
| $80.8M | 0.11% |
1,486,400
+163,700
| +12% | +$8.66M |
|
205
Haleon
HLN
$43.7B
| $80.7M | 0.11% |
7,786,699
+6,547,000
| +528% | +$69.1M |
|
206
Devon Energy
DVN
$49.9B
| $80.5M | 0.11% |
2,529,730
+1,500,300
| +146% | +$47.8M |
|
207
Teradyne
TER
$59.3B
| $80.1M | 0.11% |
891,100
+425,439
| +91% | +$34M |
|
208
Dollar General
DG
$26.5B
| $80M | 0.11% |
699,700
+682,800
| +4,040% | +$67.8M |
|
209
On Holding
ONON
$10.3B
| $80M | 0.11% |
1,536,400
+943,500
| +159% | +$48.1M |
|
210
Target
TGT
$69.2B
| $79.4M | 0.11% |
805,300
-10,700
| -1% | -$1.03M |
|
|
HOLX
211
DELISTED
Hologic
HOLX
| $79.1M | 0.11% |
1,213,313
-618,218
| -34% | -$37.1M |
|
212
Mercury Insurance
MCY
$5.86B
| $78.9M | 0.11% |
1,172,082
-115,597
| -9% | -$6.88M |
|
213
Futu Holdings
FUTU
$14.7B
| $78.4M | 0.1% |
634,226
+513,100
| +424% | +$52.5M |
|
214
Pinduoduo
PDD
$129B
| $77.7M | 0.1% |
742,000
+152,100
| +26% | +$16M |
|
215
Toronto Dominion Bank
TD
$201B
| $77.6M | 0.1% |
1,056,680
+501,300
| +90% | +$32.7M |
|
216
Maplebear
CART
$11.4B
| $77.6M | 0.1% |
1,714,253
+254,200
| +17% | +$11.1M |
|
217
Amgen
AMGN
$224B
| $77.4M | 0.1% |
277,300
+162,900
| +142% | +$46.1M |
|
218
TransDigm Group
TDG
$68.7B
| $76.8M | 0.1% |
50,500
-19,500
| -28% | -$27.4M |
|
219
Janus Henderson AAA CLO ETF
JAAA
$29.8B
| $76.7M | 0.1% |
1,511,413
-264,487
| -15% | -$13.4M |
|
220
Marqeta
MQ
$1.62B
| $76.3M | 0.1% |
3,272,097
+335,950
| +11% | +$6.38M |
|
221
Cigna
CI
$72.4B
| $76.1M | 0.1% |
230,259
+223,159
| +3,143% | +$71.9M |
|
222
Ralph Lauren
RL
$23.7B
| $75.8M | 0.1% |
276,400
+12,600
| +5% | +$3.12M |
|
223
IDT Corp
IDT
$1.63B
| $75.1M | 0.1% |
1,099,839
-12,167
| -1% | -$697K |
|
224
Brady Corp
BRC
$4.48B
| $74.7M | 0.1% |
1,098,840
+23,100
| +2% | +$1.61M |
|
225
Yum! Brands
YUM
$39.5B
| $74.6M | 0.1% |
503,600
+501,500
| +23,881% | +$73.2M |
|
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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.