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 |
Alphabet (Google) Class A
GOOGL
|
+$546M |
| 2 |
Microsoft
MSFT
|
+$480M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$362M |
| 4 |
Meta Platforms (Facebook)
META
|
+$350M |
| 5 |
Coca-Cola
KO
|
+$266M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Robinhood
HOOD
|
+$1.04B |
| 2 |
Palantir
PLTR
|
+$800M |
| 3 |
Apple
AAPL
|
+$516M |
| 4 |
Netflix
NFLX
|
+$326M |
| 5 |
NVIDIA
NVDA
|
+$313M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 21.71% |
| 2 | Healthcare | 15.16% |
| 3 | Consumer Discretionary | 11.81% |
| 4 | Communication Services | 10.53% |
| 5 | Financials | 9.27% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
CWEN.A
576
DELISTED
Clearway Energy Class A
CWEN.A
| $28.3M | 0.04% |
1,049,529
+121,100
| +13% | +$3.46M |
|
577
State Street SPDR Portfolio Short Term Treasury ETF
SPTS
$6.12B
| $28.2M | 0.04% |
961,800
-676,500
| -41% | -$19.8M |
|
578
Duke Energy
DUK
$97.1B
| $28.2M | 0.04% |
227,850
-65,650
| -22% | -$7.97M |
|
579
Federated Hermes
FHI
$4.74B
| $28M | 0.04% |
538,351
+170,651
| +46% | +$8.65M |
|
580
Danaher
DHR
$143B
| $27.9M | 0.04% |
+140,736
| New | +$28M |
|
581
Core Scientific
CORZ
$6.36B
| $27.9M | 0.04% |
1,555,286
+1,000,969
| +181% | +$14.7M |
|
582
MasterBrand
MBC
$1.89B
| $27.8M | 0.04% |
2,113,363
+60,608
| +3% | +$749K |
|
583
IDEX
IEX
$17.6B
| $27.7M | 0.04% |
170,425
+161,900
| +1,899% | +$27.3M |
|
584
Evergy
EVRG
$19.3B
| $27.7M | 0.04% |
364,802
+116,000
| +47% | +$8.27M |
|
585
Baker Hughes
BKR
$63B
| $27.5M | 0.04% |
+564,540
| New | +$24.9M |
|
586
Legend Biotech
LEGN
$3.93B
| $27.5M | 0.04% |
843,200
+186,900
| +28% | +$6.9M |
|
587
LPL Financial
LPLA
$29.5B
| $27.5M | 0.04% |
82,600
-27,200
| -25% | -$9.86M |
|
588
Americold
COLD
$4.32B
| $27.3M | 0.04% |
2,231,800
+1,957,000
| +712% | +$29.2M |
|
|
GAP
589
The Gap Inc
GAP
$7.34B
| $27.3M | 0.04% |
1,275,407
+796,707
| +166% | +$17.2M |
|
590
Blue Owl Capital
OWL
$19.7B
| $27.3M | 0.04% |
1,609,600
-602,600
| -27% | -$11.5M |
|
591
Protolabs
PRLB
$2.21B
| $27.2M | 0.04% |
543,651
+1,600
| +0.3% | +$73.3K |
|
592
Gentex
GNTX
$4.99B
| $27.1M | 0.04% |
959,296
+448,300
| +88% | +$11.9M |
|
|
AGNT
593
AGNT Inc
AGNT
$752M
| $27.1M | 0.04% |
2,539,816
+103,800
| +4% | +$1.1M |
|
594
Cognex
CGNX
$10.4B
| $26.9M | 0.04% |
593,956
+354,000
| +148% | +$14.3M |
|
595
Mizuho Financial
MFG
$134B
| $26.9M | 0.04% |
4,013,003
+1,721,300
| +75% | +$10.7M |
|
596
OneSpaWorld
OSW
$2.73B
| $26.9M | 0.04% |
1,271,640
-22,000
| -2% | -$481K |
|
597
State Street Consumer Staples Select Sector SPDR ETF
XLP
$14.9B
| $26.8M | 0.04% |
341,600
+215,400
| +171% | +$17.4M |
|
598
Ennis
EBF
$559M
| $26.7M | 0.04% |
1,461,946
-77,700
| -5% | -$1.41M |
|
599
Magnolia Oil & Gas
MGY
$6.13B
| $26.6M | 0.04% |
1,116,311
+20,013
| +2% | +$477K |
|
600
Five Below
FIVE
$13.4B
| $26.5M | 0.04% |
171,600
-248,500
| -59% | -$35.2M |
|
Similar funds
Jim Simons's Q3 2025 Portfolio in Review
As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.
Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.
By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.
- Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
- Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
- Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
- Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
- Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
- Jim Simons opened 516 new positions and closed 581 in Q3 2025.
- Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.
Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.