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 |
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 |
SNDK
Sandisk
SNDK
|
+$1.13B |
| 3 |
Apple
AAPL
|
+$426M |
| 4 |
Linde
LIN
|
+$316M |
| 5 |
Vertiv
VRT
|
+$297M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 23.57% |
| 2 | Healthcare | 14.84% |
| 3 | Consumer Discretionary | 11.27% |
| 4 | Industrials | 10.49% |
| 5 | Communication Services | 8.87% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1526
LifeMD
LFMD
$167M
| $4.46M | 0.01% |
1,079,525
-38,800
| -3% | -$171K |
|
1527
Ring Energy
REI
$349M
| $4.45M | 0.01% |
4,117,089
+2,496,839
| +154% | +$3.48M |
|
1528
German American Bancorp
GABC
$1.92B
| $4.44M | 0.01% |
93,649
-15,600
| -14% | -$686K |
|
1529
Republic Bancorp
RBCAA
$1.92B
| $4.44M | 0.01% |
49,100
+2,800
| +6% | +$222K |
|
1530
ADT
ADT
$5.46B
| $4.42M | 0.01% |
679,706
-671,700
| -50% | -$4.61M |
|
|
ANDG
1531
Andersen Group
ANDG
$5.45B
| $4.4M | 0.01% |
116,700
+54,700
| +88% | +$1.93M |
|
|
TRT
1532
Trio-Tech International
TRT
$118M
| $4.4M | 0.01% |
356,859
+31,333
| +10% | +$358K |
|
1533
Casey's General Stores
CASY
$31.6B
| $4.38M | 0.01% |
+5,512
| New | +$4.44M |
|
1534
Similarweb
SMWB
$789M
| $4.38M | 0.01% |
713,728
-25,945
| -4% | -$94.4K |
|
1535
Danaos Corp
DAC
$2.56B
| $4.38M | 0.01% |
35,753
-48,047
| -57% | -$6M |
|
1536
Kiniksa Pharmaceuticals
KNSA
$6.07B
| $4.35M | 0.01% |
+68,077
| New | +$3.53M |
|
1537
Grupo Aval
AVAL
$6.41B
| $4.35M | 0.01% |
865,172
-30,600
| -3% | -$144K |
|
1538
Euroseas
ESEA
$519M
| $4.34M | 0.01% |
65,465
-35,300
| -35% | -$2.43M |
|
1539
Century Aluminum
CENX
$4.59B
| $4.34M | 0.01% |
94,299
-45,200
| -32% | -$2.72M |
|
|
HUYA
1540
Huya Inc
HUYA
$538M
| $4.33M | 0.01% |
1,883,987
-381,413
| -17% | -$1.08M |
|
1541
Aclaris Therapeutics
ACRS
$863M
| $4.32M | 0.01% |
817,531
+314,900
| +63% | +$1.4M |
|
1542
Independent Bank
INDB
$4.05B
| $4.3M | 0.01% |
+51,361
| New | +$4.07M |
|
1543
SFL Corp
SFL
$1.61B
| $4.3M | 0.01% |
421,365
-16,200
| -4% | -$184K |
|
1544
Sana Biotechnology
SANA
$1.1B
| $4.3M | 0.01% |
1,231,100
-220,100
| -15% | -$709K |
|
1545
Northeast Bank
NBN
$1.16B
| $4.3M | 0.01% |
32,417
-17,828
| -35% | -$2.2M |
|
1546
Quanta Services
PWR
$101B
| $4.29M | 0.01% |
+5,959
| New | +$4.07M |
|
1547
Tronox
TROX
$958M
| $4.28M | 0.01% |
678,700
+463,600
| +216% | +$3.93M |
|
1548
Westamerica Bancorp
WABC
$1.39B
| $4.25M | 0.01% |
72,499
-79,932
| -52% | -$4.42M |
|
1549
Electromed
ELMD
$352M
| $4.22M | 0.01% |
99,704
-24,300
| -20% | -$779K |
|
|
LADR
1550
Ladder Capital
LADR
$1.27B
| $4.21M | 0.01% |
423,459
+351,518
| +489% | +$3.57M |
|
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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.