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 | |
|---|---|---|---|---|---|---|
1601
Dakota Gold
DC
$835M
| $4.2M | 0.01% |
922,987
+84,147
| +10% | +$354K |
|
1602
Roundhill N-100 0DTE Covered Call Strategy ETF
QDTE
$963M
| $4.19M | 0.01% |
+117,800
| New | +$4.16M |
|
1603
RF Industries
RFIL
$148M
| $4.19M | 0.01% |
508,608
-36,200
| -7% | -$269K |
|
1604
Adaptive Biotechnologies
ADPT
$3.94B
| $4.18M | 0.01% |
279,700
+229,800
| +461% | +$2.8M |
|
1605
Independent Bank
INDB
$4.07B
| $4.18M | 0.01% |
60,490
-91,349
| -60% | -$6.21M |
|
1606
Direxion Daily 20+ Year Treasury Bear 3X ETF
TMV
$195M
| $4.17M | 0.01% |
119,000
+65,500
| +122% | +$2.46M |
|
1607
iShares Core S&P US Growth ETF
IUSG
$33.9B
| $4.16M | 0.01% |
25,300
+17,700
| +233% | +$2.78M |
|
1608
Viant Technology
DSP
$275M
| $4.15M | 0.01% |
481,117
+146,417
| +44% | +$1.67M |
|
1609
Accuray
ARAY
$33.2M
| $4.15M | 0.01% |
2,484,284
-120,100
| -5% | -$178K |
|
1610
GraniteShares 2x Short NVDA Daily ETF
NVD
$48.6M
| $4.14M | 0.01% |
475,600
+456,900
| +2,443% | +$4.68M |
|
1611
Arcosa
ACA
$7.14B
| $4.13M | 0.01% |
44,100
-16,200
| -27% | -$1.51M |
|
1612
Pearson
PSO
$9.72B
| $4.12M | 0.01% |
291,000
-359,600
| -55% | -$5.18M |
|
1613
Ibotta
IBTA
$783M
| $4.12M | 0.01% |
147,800
-96,200
| -39% | -$3.02M |
|
1614
Vanguard Real Estate ETF
VNQ
$39.2B
| $4.11M | 0.01% |
45,000
+41,500
| +1,186% | +$3.76M |
|
1615
Trustmark
TRMK
$2.8B
| $4.1M | 0.01% |
103,462
+48,600
| +89% | +$1.89M |
|
1616
Innovative Solutions & Support
ISSC
$412M
| $4.08M | 0.01% |
326,959
-142,800
| -30% | -$1.99M |
|
1617
Liberty Live Group Series C
LLYVK
$10B
| $4.07M | 0.01% |
42,000
-64,100
| -60% | -$5.79M |
|
|
CON
1618
Concentra Group Holdings
CON
$4.52B
| $4.06M | 0.01% |
194,036
-5,895
| -3% | -$126K |
|
1619
inTEST
INTT
$179M
| $4.06M | 0.01% |
519,937
+43,448
| +9% | +$319K |
|
|
GIFI
1620
DELISTED
Gulf Island Fabrication
GIFI
| $4.06M | 0.01% |
578,226
+18,902
| +3% | +$132K |
|
1621
First Trust Rising Dividend Achievers ETF
RDVY
$25.8B
| $4.06M | 0.01% |
60,300
-3,900
| -6% | -$253K |
|
1622
American Coastal Insurance
ACIC
$466M
| $4.04M | 0.01% |
355,057
+93,700
| +36% | +$1.02M |
|
1623
West Bancorporation
WTBA
$508M
| $4.04M | 0.01% |
198,752
-20,600
| -9% | -$406K |
|
1624
Manchester United
MANU
$4.17B
| $4.04M | 0.01% |
266,627
+250,300
| +1,533% | +$4.25M |
|
|
PHLT
1625
DELISTED
Performant Healthcare Inc
PHLT
| $4.03M | 0.01% |
520,963
-120,300
| -19% | -$766K |
|
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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.