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Jim Simons Renaissance Technologies
AUM
$72.6B
Turnover
31.08%
1-Year Est. Return
54.88%
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.
This Fund
S&P 500
This Quarter Est. Return
+24.48%
1 Year Est. Return
+54.88%
3 Year Est. Return
+169.34%
5 Year Est. Return
+186.18%
10 Year Est. Return
+887.93%
AUM
$72.6B
AUM Growth
+$8.69B
(+14%)
Cap. Flow
+$958M
Cap. Flow % of AUM
Cap. Flow %
1.32%
Top 10 Holdings %
Top 10 Hldgs %
12.01%
Holding
3,761
New
548
Increased
1,084
Reduced
1,502
Closed
621
Avg Time Held
3.5
years
Top 10 Avg Time Held
1.5
years
Top 20 Avg Time Held
1.3
years
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Meta Platforms (Facebook)
META
|
+$1.08B |
| 2 |
NVIDIA
NVDA
|
+$938M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$639M |
| 4 |
Netflix
NFLX
|
+$598M |
| 5 |
Amazon
AMZN
|
+$575M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Micron Technology
MU
|
+$1.46B |
| 2 |
Sandisk
SNDK
|
+$1.13B |
| 3 |
Apple
AAPL
|
+$426M |
| 4 |
Linde
LIN
|
+$316M |
| 5 |
Vertiv
VRT
|
+$297M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 23.58% |
| 2 | Healthcare | 14.83% |
| 3 | Consumer Discretionary | 11.24% |
| 4 | Industrials | 10.49% |
| 5 | Communication Services | 8.91% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
1526
LifeMD
LFMD
$103M
| $4.46M | 0.01% |
1,079,525
-38,800
| -3% | -$171K |
2022 Q4
14 quarters
|
|
1527
Ring Energy
REI
$352M
| $4.45M | 0.01% |
4,117,089
+2,496,839
| +154% | +$3.48M |
2023 Q3
11 quarters
|
|
1528
German American Bancorp
GABC
$1.88B
| $4.44M | 0.01% |
93,649
-15,600
| -14% | -$686K |
2024 Q2
8 quarters
|
|
1529
Republic Bancorp
RBCAA
$1.78B
| $4.44M | 0.01% |
49,100
+2,800
| +6% | +$222K |
2013 Q2
52 quarters
|
|
1530
ADT
ADT
$4.97B
| $4.42M | 0.01% |
679,706
-671,700
| -50% | -$4.61M |
2024 Q2
8 quarters
|
|
1531
Andersen Group
ANDG
$1.13B
| $4.4M | 0.01% |
116,700
+54,700
| +88% | +$1.93M |
2026 Q1
1 quarter
|
|
1532
Trio-Tech International Common Stock
TRT
$55.9M
| $4.4M | 0.01% |
356,859
+31,333
| +10% | +$358K |
2013 Q2
52 quarters
|
|
1533
Casey's General Stores
CASY
$25.7B
| $4.38M | 0.01% |
+5,512
| New | +$4.44M |
2026 Q2
0 quarters
|
|
1534
Similarweb
SMWB
$781M
| $4.38M | 0.01% |
713,728
-25,945
| -4% | -$94.4K |
2022 Q2
16 quarters
|
|
1535
Danaos Corp
DAC
$2.89B
| $4.38M | 0.01% |
35,753
-48,047
| -57% | -$6M |
2025 Q3
3 quarters
|
|
1536
Kiniksa Pharmaceuticals
KNSA
$6.22B
| $4.35M | 0.01% |
+68,077
| New | +$3.53M |
2026 Q2
0 quarters
|
|
1537
Grupo Aval
AVAL
$5.64B
| $4.35M | 0.01% |
865,172
-30,600
| -3% | -$144K |
2015 Q2
44 quarters
|
|
1538
Euroseas
ESEA
$486M
| $4.34M | 0.01% |
65,465
-35,300
| -35% | -$2.43M |
2013 Q2
52 quarters
|
|
1539
Century Aluminum
CENX
$3.42B
| $4.34M | 0.01% |
94,299
-45,200
| -32% | -$2.72M |
2025 Q2
4 quarters
|
|
1540
Huya Inc
HUYA
$525M
| $4.33M | 0.01% |
1,883,987
-381,413
| -17% | -$1.08M |
2021 Q3
19 quarters
|
|
1541
Aclaris Therapeutics
ACRS
$561M
| $4.32M | 0.01% |
817,531
+314,900
| +63% | +$1.4M |
2018 Q4
30 quarters
|
|
1542
Independent Bank
INDB
$3.85B
| $4.3M | 0.01% |
+51,361
| New | +$4.07M |
2026 Q2
0 quarters
|
|
1543
SFL Corp
SFL
$1.71B
| $4.3M | 0.01% |
421,365
-16,200
| -4% | -$184K |
2017 Q3
35 quarters
|
|
1544
Sana Biotechnology
SANA
$703M
| $4.3M | 0.01% |
1,231,100
-220,100
| -15% | -$709K |
2025 Q2
4 quarters
|
|
1545
Northeast Bank
NBN
$1.1B
| $4.3M | 0.01% |
32,417
-17,828
| -35% | -$2.2M |
2016 Q4
38 quarters
|
|
1546
Quanta Services
PWR
$90.4B
| $4.29M | 0.01% |
+5,959
| New | +$4.07M |
2026 Q2
0 quarters
|
|
1547
Tronox
TROX
$521M
| $4.28M | 0.01% |
678,700
+463,600
| +216% | +$3.93M |
2026 Q1
1 quarter
|
|
1548
Westamerica Bancorp
WABC
$1.41B
| $4.25M | 0.01% |
72,499
-79,932
| -52% | -$4.42M |
2024 Q4
6 quarters
|
|
1549
Electromed
ELMD
$226M
| $4.22M | 0.01% |
99,704
-24,300
| -20% | -$779K |
2017 Q3
35 quarters
|
|
1550
Ladder Capital
LADR
$1.14B
| $4.21M | 0.01% |
423,459
+351,518
| +489% | +$3.57M |
2025 Q3
3 quarters
|
|
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Jim Simons's Q2 2026 Portfolio in Review
As of Q2 2026, Jim Simons held 3,761 positions worth $72.6B, up 14% from $63.9B the previous quarter. Its ten largest holdings account for 12% of the portfolio.
Jim Simons's Q2 2026 filing shows 548 new, 1,084 increased, 1,502 reduced and 621 closed positions. Its largest new stake was Amazon: 2,290,710 shares worth $546M. The largest sale was Micron Technology, an estimated $1.46B.
By sector, the portfolio is most concentrated in Technology at 24% of assets, up from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Jim Simons's largest Q2 2026 buy was Amazon: 2,290,710 shares worth $546M.
- Jim Simons added most to Meta Platforms (Facebook) in Q2 2026, an estimated $1.08B increase.
- Jim Simons's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.46B.
- Jim Simons fully exited Applovin in Q2 2026, selling an estimated $174M.
- Jim Simons's ten largest holdings make up 12% of its $72.6B portfolio in Q2 2026.
- Jim Simons opened 548 new positions and closed 621 in Q2 2026.
- Jim Simons's portfolio value rose 14% quarter-over-quarter to $72.6B.
Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.