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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 | |
|---|---|---|---|---|---|---|---|
601
Erasca
ERAS
$4.76B
| $25.1M | 0.03% |
1,368,918
-29,951
| -2% | -$428K |
2022 Q4
14 quarters
|
|
602
SEI Investments
SEIC
$12.6B
| $25M | 0.03% |
284,726
-115,100
| -29% | -$10M |
2017 Q2
36 quarters
|
|
603
Conagra Brands
CAG
$6.7B
| $24.9M | 0.03% |
+1,852,381
| New | +$25.9M |
2026 Q2
0 quarters
|
|
604
A.O. Smith
AOS
$7.98B
| $24.9M | 0.03% |
397,499
-346,901
| -47% | -$21M |
2023 Q2
12 quarters
|
|
605
Omnicell
OMCL
$1.63B
| $24.8M | 0.03% |
596,243
+113,200
| +23% | +$4.56M |
2023 Q3
11 quarters
|
|
606
Reliance Steel & Aluminium
RS
$21.2B
| $24.8M | 0.03% |
+66,252
| New | +$24.2M |
2026 Q2
0 quarters
|
|
607
Stitch Fix
SFIX
$353M
| $24.7M | 0.03% |
6,003,658
+357,800
| +6% | +$1.3M |
2021 Q3
19 quarters
|
|
608
Madrigal Pharmaceuticals
MDGL
$10.3B
| $24.7M | 0.03% |
45,942
-25,928
| -36% | -$13.3M |
2024 Q3
7 quarters
|
|
609
Adtran
ADTN
$524M
| $24.7M | 0.03% |
1,773,740
+1,570,841
| +774% | +$24.5M |
2014 Q1
49 quarters
|
|
610
Primerica
PRI
$8.64B
| $24.7M | 0.03% |
86,740
+33,920
| +64% | +$9.28M |
2026 Q1
1 quarter
|
|
611
AT&T
T
$159B
| $24.6M | 0.03% |
+1,190,746
| New | +$29.6M |
2026 Q2
0 quarters
|
|
612
UDR
UDR
$10.9B
| $24.6M | 0.03% |
616,298
-636,800
| -51% | -$23.6M |
2023 Q2
12 quarters
|
|
613
FLEX LNG
FLNG
$1.5B
| $24.6M | 0.03% |
875,404
-295,391
| -25% | -$9.13M |
2023 Q1
13 quarters
|
|
614
Clean Harbors
CLH
$16.7B
| $24.6M | 0.03% |
+82,202
| New | +$24.3M |
2026 Q2
0 quarters
|
|
615
STMicroelectronics
STM
$40.8B
| $24.5M | 0.03% |
+332,974
| New | +$20M |
2026 Q2
0 quarters
|
|
616
Steris
STE
$21.6B
| $24.4M | 0.03% |
+115,913
| New | +$24.9M |
2026 Q2
0 quarters
|
|
617
Applied Industrial Technologies
AIT
$12.3B
| $24.4M | 0.03% |
+72,110
| New | +$22.1M |
2026 Q2
0 quarters
|
|
618
Duolingo
DUOL
$6.65B
| $24.3M | 0.03% |
211,526
-392,280
| -65% | -$42.9M |
2022 Q3
15 quarters
|
|
619
EnerSys
ENS
$6.1B
| $24.3M | 0.03% |
103,800
+44,400
| +75% | +$9.6M |
2026 Q1
1 quarter
|
|
620
LegalZoom.com
LZ
$1.08B
| $24.2M | 0.03% |
3,945,493
-68,200
| -2% | -$418K |
2022 Q3
15 quarters
|
|
621
Sumitomo Mitsui Financial Group, Inc American Depositary Shares (each representing 1.2 shares of Common Stock)
SMFG
$153B
| $24.1M | 0.03% |
1,023,572
-725,700
| -41% | -$16.1M |
2013 Q2
52 quarters
|
|
622
Sunrun
RUN
$1.66B
| $24.1M | 0.03% |
1,800,045
-265,200
| -13% | -$3.58M |
2025 Q3
3 quarters
|
|
623
Wolfspeed
WOLF
$1.28B
| $24.1M | 0.03% |
+498,900
| New | +$21.7M |
2026 Q2
0 quarters
|
|
624
Automatic Data Processing
ADP
$114B
| $24M | 0.03% |
106,960
-539,860
| -83% | -$115M |
2025 Q3
3 quarters
|
|
625
Planet Labs
PL
$4.94B
| $23.9M | 0.03% |
721,980
-299,200
| -29% | -$11.1M |
2023 Q4
10 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.