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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 | |
|---|---|---|---|---|---|---|---|
701
Carlisle Companies
CSL
$13.1B
| $20M | 0.03% |
55,220
-106,240
| -66% | -$37.2M |
2025 Q4
2 quarters
|
|
702
Archrock
AROC
$5.15B
| $20M | 0.03% |
491,928
-99,606
| -17% | -$3.67M |
2020 Q2
24 quarters
|
|
703
National Fuel Gas
NFG
$7.43B
| $20M | 0.03% |
258,500
-108,700
| -30% | -$9M |
2025 Q2
4 quarters
|
|
704
Texas Capital Bancshares
TCBI
$3.93B
| $19.8M | 0.03% |
191,800
+82,300
| +75% | +$8.26M |
2018 Q1
33 quarters
|
|
705
Archer Aviation
ACHR
$3.11B
| $19.7M | 0.03% |
4,160,486
+1,646,186
| +65% | +$9.6M |
2025 Q4
2 quarters
|
|
706
Wheaton Precious Metals
WPM
$59.9B
| $19.6M | 0.03% |
+174,890
| New | +$22.8M |
2026 Q2
0 quarters
|
|
707
Atlanta Braves Holdings Series A
BATRA
$3.5B
| $19.6M | 0.03% |
347,700
+13,000
| +4% | +$693K |
2017 Q1
37 quarters
|
|
708
Amprius Technologies
AMPX
$1.11B
| $19.5M | 0.03% |
1,408,925
+1,049,400
| +292% | +$18.8M |
2024 Q3
7 quarters
|
|
709
DELISTED
Apogee Therapeutics
APGE
| $19.5M | 0.03% |
+146,800
| New | +$13.2M |
2026 Q2
0 quarters
|
|
710
Plexus
PLXS
$6.26B
| $19.5M | 0.03% |
64,693
+29,800
| +85% | +$7.77M |
2026 Q1
1 quarter
|
|
711
Central Pacific Financial
CPF
$934M
| $19.3M | 0.03% |
506,400
-52,990
| -9% | -$1.84M |
2013 Q2
52 quarters
|
|
712
Millrose Properties Inc
MRP
$3.65B
| $19.3M | 0.03% |
640,665
-46,400
| -7% | -$1.34M |
2025 Q2
4 quarters
|
|
713
Trane Technologies
TT
$102B
| $19.2M | 0.03% |
39,188
-159,760
| -80% | -$74.7M |
2024 Q4
6 quarters
|
|
714
Macerich
MAC
$6.39B
| $19.2M | 0.03% |
+762,487
| New | +$17.1M |
2026 Q2
0 quarters
|
|
715
KBR
KBR
$4.63B
| $19.2M | 0.03% |
554,600
-52,800
| -9% | -$1.84M |
2023 Q2
12 quarters
|
|
716
SOLV Energy Inc
MWH
$4.83B
| $19.1M | 0.03% |
+560,700
| New | +$20.3M |
2026 Q2
0 quarters
|
|
717
Bel Fuse Inc Class A
BELFA
$2.5B
| $19.1M | 0.03% |
65,553
-2,700
| -4% | -$656K |
2013 Q2
52 quarters
|
|
718
NetApp
NTAP
$40.7B
| $19M | 0.03% |
+122,832
| New | +$16.1M |
2026 Q2
0 quarters
|
|
719
Inspire Medical Systems
INSP
$2.03B
| $19M | 0.03% |
426,000
-43,968
| -9% | -$2.09M |
2022 Q3
15 quarters
|
|
720
Ambiq Micro
AMBQ
$1.2B
| $19M | 0.03% |
214,756
+172,156
| +404% | +$10.2M |
2026 Q1
1 quarter
|
|
721
Chime Financial
CHYM
$11.2B
| $18.9M | 0.03% |
923,600
+104,900
| +13% | +$2.04M |
2026 Q1
1 quarter
|
|
722
Cousins Properties
CUZ
$4.48B
| $18.9M | 0.03% |
630,431
+132,969
| +27% | +$3.49M |
2023 Q2
12 quarters
|
|
723
LSB Industries
LXU
$755M
| $18.9M | 0.03% |
1,748,406
-44,100
| -2% | -$590K |
2018 Q3
31 quarters
|
|
724
Barrett Business Services
BBSI
$770M
| $18.9M | 0.03% |
531,441
-108,021
| -17% | -$3.39M |
2013 Q2
52 quarters
|
|
725
PJT Partners
PJT
$3.48B
| $18.9M | 0.03% |
125,000
+77,300
| +162% | +$11.9M |
2026 Q1
1 quarter
|
|
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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.