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 | |
|---|---|---|---|---|---|---|
501
Energy Fuels
UUUU
$3.64B
| $33.1M | 0.04% |
2,154,804
-3,257,216
| -60% | -$34.6M |
|
502
AutoNation
AN
$6.89B
| $33M | 0.04% |
150,859
+101,659
| +207% | +$21.4M |
|
503
Elbit Systems
ESLT
$36.5B
| $32.9M | 0.04% |
64,600
+19,076
| +42% | +$8.94M |
|
504
Chord Energy
CHRD
$7.35B
| $32.9M | 0.04% |
331,116
+19,900
| +6% | +$2.09M |
|
|
EXAS
505
DELISTED
Exact Sciences
EXAS
| $32.9M | 0.04% |
601,376
+72,572
| +14% | +$3.63M |
|
506
Guidewire Software
GWRE
$15.2B
| $32.9M | 0.04% |
+143,100
| New | +$32.5M |
|
507
JPMorgan Income ETF
JPIE
$10.3B
| $32.9M | 0.04% |
708,541
-39,889
| -5% | -$1.85M |
|
508
SEI Investments
SEIC
$12.8B
| $32.8M | 0.04% |
386,926
-35,000
| -8% | -$3.11M |
|
509
Ross Stores
ROST
$78.6B
| $32.7M | 0.04% |
214,633
-157,600
| -42% | -$22.5M |
|
510
Bank OZK
OZK
$5.7B
| $32.7M | 0.04% |
641,497
+40,700
| +7% | +$2.08M |
|
511
Huazhu Hotels Group
HTHT
$12.5B
| $32.5M | 0.04% |
831,485
-25,400
| -3% | -$887K |
|
512
Carpenter Technology
CRS
$26.6B
| $32.5M | 0.04% |
132,400
+60,600
| +84% | +$15.5M |
|
513
Sunrun
RUN
$2.37B
| $32.5M | 0.04% |
+1,877,045
| New | +$25.1M |
|
514
CVR Energy
CVI
$3.58B
| $32.4M | 0.04% |
886,884
+400,300
| +82% | +$12M |
|
515
Option Care Health
OPCH
$3.61B
| $32.3M | 0.04% |
1,164,546
-88,300
| -7% | -$2.56M |
|
516
Hess Midstream
HESM
$5.11B
| $32.3M | 0.04% |
935,302
+97,707
| +12% | +$3.88M |
|
517
Bank of Montreal
BMO
$129B
| $32.3M | 0.04% |
247,795
+41,900
| +20% | +$4.96M |
|
|
TGB
518
Trekor Metals
TGB
$3.08B
| $32.1M | 0.04% |
7,591,470
-1,948,417
| -20% | -$6.63M |
|
519
Willis Lease Finance
WLFC
$1.15B
| $32M | 0.04% |
700,191
-18,177
| -3% | -$881K |
|
|
SARO
520
StandardAero Inc
SARO
$8.97B
| $31.9M | 0.04% |
1,168,000
-216,100
| -16% | -$6.06M |
|
521
Ionis Pharmaceuticals
IONS
$9.28B
| $31.8M | 0.04% |
486,714
+216,000
| +80% | +$10.5M |
|
522
Madison Square Garden
MSGS
$9.94B
| $31.8M | 0.04% |
140,100
+18,300
| +15% | +$3.75M |
|
523
FTI Consulting
FCN
$4.24B
| $31.8M | 0.04% |
196,700
-49,500
| -20% | -$8.22M |
|
524
Hormel Foods
HRL
$13.4B
| $31.6M | 0.04% |
1,278,925
-357,300
| -22% | -$9.9M |
|
525
Vanguard Short-Term Bond ETF
BSV
$45.7B
| $31.6M | 0.04% |
400,800
-306,100
| -43% | -$24.1M |
|
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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.