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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 | |
|---|---|---|---|---|---|---|---|
1651
Accelerant Holdings
ARX
$4.29B
| $3.47M | ﹤0.01% |
296,100
+19,500
| +7% | +$274K |
2025 Q4
2 quarters
|
|
1652
NN Inc
NNBR
$325M
| $3.47M | ﹤0.01% |
966,000
+416,960
| +76% | +$1.04M |
2021 Q2
20 quarters
|
|
1653
Astrana Health
ASTH
$1.85B
| $3.46M | ﹤0.01% |
74,646
-29,900
| -29% | -$1.08M |
2023 Q3
11 quarters
|
|
1654
SR Bancorp
SRBK
$136M
| $3.46M | ﹤0.01% |
176,000
-4,300
| -2% | -$79.5K |
2023 Q4
10 quarters
|
|
1655
Rapid7
RPD
$911M
| $3.46M | ﹤0.01% |
427,096
+277,900
| +186% | +$1.84M |
2025 Q4
2 quarters
|
|
1656
Precigen
PGEN
$2.36B
| $3.45M | ﹤0.01% |
+605,300
| New | +$2.62M |
2026 Q2
0 quarters
|
|
1657
iShares MSCI EAFE ETF
EFA
$77.2B
| $3.45M | ﹤0.01% |
33,200
-827,800
| -96% | -$85.1M |
2025 Q4
2 quarters
|
|
1658
Duos Technologies
DUOT
$198M
| $3.45M | ﹤0.01% |
287,200
+22,785
| +9% | +$229K |
2025 Q3
3 quarters
|
|
1659
Costamare Bulkers Holdings
CMDB
$480M
| $3.44M | ﹤0.01% |
196,146
-8,293
| -4% | -$144K |
2025 Q2
4 quarters
|
|
1660
iShares S&P 500 Growth ETF
IVW
$78B
| $3.44M | ﹤0.01% |
+25,000
| New | +$3.3M |
2026 Q2
0 quarters
|
|
1661
Chegg
CHGG
$74.3M
| $3.43M | ﹤0.01% |
3,396,900
+50,100
| +1% | +$55K |
2022 Q1
17 quarters
|
|
1662
Reynolds Consumer Products
REYN
$4.77B
| $3.42M | ﹤0.01% |
127,500
+23,800
| +23% | +$530K |
2026 Q1
1 quarter
|
|
1663
Gaotu Techedu
GOTU
$611M
| $3.42M | ﹤0.01% |
2,061,978
-268,662
| -12% | -$488K |
2021 Q3
19 quarters
|
|
1664
Humana
HUM
$51.1B
| $3.42M | ﹤0.01% |
+8,600
| New | +$2.45M |
2026 Q2
0 quarters
|
|
1665
Wipro
WIT
$21.3B
| $3.4M | ﹤0.01% |
1,511,900
-749,300
| -33% | -$1.59M |
2024 Q2
8 quarters
|
|
1666
PureCycle Technologies
PCT
$557M
| $3.4M | ﹤0.01% |
419,100
+273,300
| +187% | +$2.45M |
2025 Q3
3 quarters
|
|
1667
Unisys
UIS
$174M
| $3.4M | ﹤0.01% |
927,700
+14,800
| +2% | +$46.4K |
2022 Q4
14 quarters
|
|
1668
Kayne Anderson BDC
KBDC
$823M
| $3.39M | ﹤0.01% |
250,829
+105,507
| +73% | +$1.52M |
2024 Q3
7 quarters
|
|
1669
DELISTED
Simulations Plus
SLP
| $3.39M | ﹤0.01% |
185,048
+3,548
| +2% | +$54.5K |
2025 Q4
2 quarters
|
|
1670
Empire State Realty Trust
ESRT
$809M
| $3.39M | ﹤0.01% |
626,100
+262,400
| +72% | +$1.43M |
2024 Q1
9 quarters
|
|
1671
Kewaunee Scientific
KEQU
$95.3M
| $3.39M | ﹤0.01% |
95,311
-3,200
| -3% | -$119K |
2013 Q4
50 quarters
|
|
1672
StubHub Holdings
STUB
$2.26B
| $3.38M | ﹤0.01% |
+262,900
| New | +$2.32M |
2026 Q2
0 quarters
|
|
1673
Stock Yards Bancorp
SYBT
$2.38B
| $3.38M | ﹤0.01% |
44,150
+36,539
| +480% | +$2.62M |
2025 Q4
2 quarters
|
|
1674
Northwest Bancshares
NWBI
$2.2B
| $3.37M | ﹤0.01% |
222,368
+123,148
| +124% | +$1.72M |
2024 Q3
7 quarters
|
|
1675
Crexendo
CXDO
$195M
| $3.37M | ﹤0.01% |
450,981
+104,244
| +30% | +$815K |
2022 Q4
14 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.