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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 | |
|---|---|---|---|---|---|---|---|
1026
Postal Realty Trust
PSTL
$654M
| $10.7M | 0.01% |
432,532
-11,623
| -3% | -$259K |
2020 Q2
24 quarters
|
|
1027
GXO Logistics
GXO
$5.52B
| $10.7M | 0.01% |
210,100
+153,800
| +273% | +$7.97M |
2026 Q1
1 quarter
|
|
1028
Graham Holdings Company
GHC
$5.19B
| $10.6M | 0.01% |
9,310
-90
| -1% | -$101K |
2025 Q3
3 quarters
|
|
1029
Macy's
M
$6.11B
| $10.6M | 0.01% |
450,864
+323,700
| +255% | +$6.78M |
2025 Q2
4 quarters
|
|
1030
Safety Insurance
SAFT
$1.53B
| $10.6M | 0.01% |
141,695
+1,295
| +0.9% | +$94.5K |
2014 Q2
48 quarters
|
|
1031
Amphastar Pharmaceuticals
AMPH
$1.1B
| $10.6M | 0.01% |
525,100
-28,800
| -5% | -$581K |
2017 Q4
34 quarters
|
|
1032
Ero Copper
ERO
$3.43B
| $10.6M | 0.01% |
395,876
-25,000
| -6% | -$708K |
2025 Q4
2 quarters
|
|
1033
Dana Inc
DAN
$3.14B
| $10.6M | 0.01% |
388,944
-16,156
| -4% | -$551K |
2023 Q3
11 quarters
|
|
1034
Cushman & Wakefield Ltd
CWK
$2.7B
| $10.6M | 0.01% |
788,000
+290,400
| +58% | +$3.9M |
2026 Q1
1 quarter
|
|
1035
Genworth Financial
GNW
$3.39B
| $10.5M | 0.01% |
1,110,500
+410,100
| +59% | +$3.65M |
2023 Q3
11 quarters
|
|
1036
Gates Industrial Corp
GTES
$6.61B
| $10.5M | 0.01% |
373,800
+8,700
| +2% | +$224K |
2025 Q4
2 quarters
|
|
1037
Insight Enterprises
NSIT
$4.82B
| $10.4M | 0.01% |
85,573
-95,000
| -53% | -$8.67M |
2025 Q4
2 quarters
|
|
1038
Ferguson
FERG
$43.9B
| $10.4M | 0.01% |
43,900
+36,443
| +489% | +$8.79M |
2023 Q1
13 quarters
|
|
1039
Capital Group Municipal Income ETF
CGMU
$7.03B
| $10.4M | 0.01% |
378,400
+356,810
| +1,653% | +$9.8M |
2025 Q2
4 quarters
|
|
1040
Vir Biotechnology
VIR
$1.82B
| $10.4M | 0.01% |
1,016,864
+255,500
| +34% | +$2.43M |
2021 Q4
18 quarters
|
|
|
1041
Vertiv
VRT
$78.4B
| $10.3M | 0.01% |
30,758
-937,232
| -97% | -$297M |
2023 Q3
11 quarters
|
|
1042
First Solar
FSLR
$18.7B
| $10.3M | 0.01% |
43,600
-57,900
| -57% | -$13.6M |
2026 Q1
1 quarter
|
|
1043
Saia
SAIA
$8.88B
| $10.3M | 0.01% |
24,418
-41,960
| -63% | -$18.4M |
2025 Q2
4 quarters
|
|
1044
Lifestance Health
LFST
$4.65B
| $10.3M | 0.01% |
960,010
+159,510
| +20% | +$1.23M |
2024 Q1
9 quarters
|
|
1045
Artesian Resources
ARTNA
$345M
| $10.2M | 0.01% |
301,156
-19,300
| -6% | -$624K |
2013 Q2
52 quarters
|
|
1046
Wolverine World Wide
WWW
$1.65B
| $10.2M | 0.01% |
617,900
+83,855
| +16% | +$1.42M |
2025 Q3
3 quarters
|
|
1047
Mineralys Therapeutics
MLYS
$1.91B
| $10.2M | 0.01% |
378,300
-4,500
| -1% | -$123K |
2023 Q3
11 quarters
|
|
1048
Houlihan Lokey
HLI
$9.11B
| $10.2M | 0.01% |
+76,000
| New | +$11.2M |
2026 Q2
0 quarters
|
|
1049
Global Industrial
GIC
$1.68B
| $10.1M | 0.01% |
303,279
-49,292
| -14% | -$1.56M |
2014 Q2
48 quarters
|
|
1050
Caris Life Sciences
CAI
$8.79B
| $10.1M | 0.01% |
568,000
+118,100
| +26% | +$2.11M |
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.