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 | |
|---|---|---|---|---|---|---|
376
GameStop
GME
$8.32B
| $45.1M | 0.06% |
1,847,348
+644,500
| +54% | +$17.3M |
|
377
Brookfield Renewable
BEPC
$6.44B
| $45M | 0.06% |
1,372,295
-61,500
| -4% | -$1.8M |
|
378
Collegium Pharmaceutical
COLL
$846M
| $45M | 0.06% |
1,521,170
-94,879
| -6% | -$2.71M |
|
379
Scotiabank
BNS
$109B
| $44.9M | 0.06% |
+811,500
| New | +$41.3M |
|
380
Urban Outfitters
URBN
$6.65B
| $44.8M | 0.06% |
618,200
+253,100
| +69% | +$15.2M |
|
381
Hudbay
HBM
$12.4B
| $44.8M | 0.06% |
4,226,009
+1,600,100
| +61% | +$13.3M |
|
382
LegalZoom.com
LZ
$908M
| $44.6M | 0.06% |
5,002,150
+1,018,200
| +26% | +$8.53M |
|
383
Aflac
AFL
$60.8B
| $44.4M | 0.06% |
420,600
+372,700
| +778% | +$39.2M |
|
384
PGIM AAA CLO ETF
PAAA
$11.3B
| $44.1M | 0.06% |
857,693
-251,607
| -23% | -$12.9M |
|
385
Genworth Financial
GNW
$3.76B
| $44.1M | 0.06% |
5,671,800
+3,517,900
| +163% | +$24.6M |
|
386
General Motors
GM
$76.8B
| $44.1M | 0.06% |
896,300
+765,484
| +585% | +$36.3M |
|
387
Suncor Energy
SU
$74.5B
| $44.1M | 0.06% |
1,177,426
+817,600
| +227% | +$29.6M |
|
|
SARO
388
StandardAero Inc
SARO
$9.27B
| $43.8M | 0.06% |
1,384,100
+998,200
| +259% | +$28M |
|
|
HES
389
DELISTED
Hess
HES
| $43.8M | 0.06% |
315,863
-138,100
| -30% | -$18.6M |
|
390
Joby Aviation
JOBY
$7.98B
| $43.6M | 0.06% |
4,133,800
+1,505,900
| +57% | +$10.9M |
|
|
JNPR
391
DELISTED
Juniper Networks
JNPR
| $43.5M | 0.06% |
1,090,291
+123,300
| +13% | +$4.42M |
|
392
Fortuna Silver Mines
FSM
$3.24B
| $43.5M | 0.06% |
6,648,500
+5,251,900
| +376% | +$32.5M |
|
393
IonQ
IONQ
$17.6B
| $43.2M | 0.06% |
1,006,400
-1,809,400
| -64% | -$60.6M |
|
394
Chemed
CHE
$7.03B
| $43.1M | 0.06% |
88,500
+37,400
| +73% | +$21.3M |
|
395
Cellebrite
CLBT
$3.86B
| $43M | 0.06% |
2,686,339
+76,000
| +3% | +$1.35M |
|
396
Teledyne Technologies
TDY
$31.6B
| $42.9M | 0.06% |
83,727
+29,700
| +55% | +$14.3M |
|
397
MarketAxess Holdings
MKTX
$5.72B
| $42.6M | 0.06% |
190,600
+61,100
| +47% | +$13.4M |
|
398
US Bancorp
USB
$101B
| $42.6M | 0.06% |
940,700
+185,000
| +24% | +$7.78M |
|
399
Blue Owl Capital
OWL
$19B
| $42.5M | 0.06% |
2,212,200
+2,101,600
| +1,900% | +$38.9M |
|
400
Houlihan Lokey
HLI
$8.75B
| $42.5M | 0.06% |
236,100
+85,400
| +57% | +$14.3M |
|
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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.