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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
+887.92%
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 | |
|---|---|---|---|---|---|---|---|
1726
WaFd
WAFD
$2.11B
| $3.08M | ﹤0.01% |
80,229
+68,600
| +590% | +$2.42M |
2026 Q1
1 quarter
|
|
1727
Regenxbio
RGNX
$471M
| $3.08M | ﹤0.01% |
256,686
-48,600
| -16% | -$403K |
2024 Q4
6 quarters
|
|
1728
Aktis Oncology
AKTS
$891M
| $3.07M | ﹤0.01% |
+95,400
| New | +$1.96M |
2026 Q2
0 quarters
|
|
1729
Inogen
INGN
$181M
| $3.07M | ﹤0.01% |
476,700
-2,100
| -0.4% | -$13.9K |
2014 Q4
46 quarters
|
|
1730
iShares Core US REIT ETF
USRT
$4.22B
| $3.07M | ﹤0.01% |
+46,219
| New | +$2.98M |
2026 Q2
0 quarters
|
|
1731
Black Rock Coffee Bar Inc
BRCB
$198M
| $3.06M | ﹤0.01% |
368,620
+161,020
| +78% | +$1.6M |
2025 Q4
2 quarters
|
|
1732
Byline Bancorp
BY
$1.69B
| $3.04M | ﹤0.01% |
+80,600
| New | +$2.71M |
2026 Q2
0 quarters
|
|
1733
Sigma Lithium
SGML
$876M
| $3.03M | ﹤0.01% |
+239,700
| New | +$4.03M |
2026 Q2
0 quarters
|
|
1734
Liberty Live Group Series C
LLYVK
$9.24B
| $3.02M | ﹤0.01% |
+28,600
| New | +$2.79M |
2026 Q2
0 quarters
|
|
1735
Zillow
ZG
$7.45B
| $3.02M | ﹤0.01% |
96,200
-124,563
| -56% | -$4.81M |
2024 Q3
7 quarters
|
|
1736
Invesco Solar ETF
TAN
$826M
| $3.01M | ﹤0.01% |
+50,955
| New | +$3.09M |
2026 Q2
0 quarters
|
|
1737
Sonic Automotive
SAH
$1.93B
| $3.01M | ﹤0.01% |
35,500
-52,626
| -60% | -$4.04M |
2023 Q1
13 quarters
|
|
1738
Gibraltar Industries
ROCK
$1.15B
| $3.01M | ﹤0.01% |
66,668
+51,168
| +330% | +$2M |
2013 Q2
52 quarters
|
|
1739
Townsquare Media
TSQ
$69.5M
| $3M | ﹤0.01% |
424,463
-17,000
| -4% | -$110K |
2016 Q1
41 quarters
|
|
1740
CoinShares Bitcoin Mining and Digital Power ETF
WGMI
$164M
| $3M | ﹤0.01% |
+47,544
| New | +$2.71M |
2026 Q2
0 quarters
|
|
1741
Victory Capital Holdings
VCTR
$6.59B
| $2.99M | ﹤0.01% |
+35,600
| New | +$2.87M |
2026 Q2
0 quarters
|
|
1742
Bank First Corp
BFC
$1.59B
| $2.98M | ﹤0.01% |
20,100
-13,700
| -41% | -$1.95M |
2024 Q3
7 quarters
|
|
1743
Imperial Petroleum
IMPP
$224M
| $2.98M | ﹤0.01% |
646,545
+97,405
| +18% | +$474K |
2023 Q4
10 quarters
|
|
1744
iShares ESG Aware MSCI USA ETF
ESGU
$18B
| $2.98M | ﹤0.01% |
+18,200
| New | +$2.88M |
2026 Q2
0 quarters
|
|
1745
Kyverna Therapeutics
KYTX
$366M
| $2.98M | ﹤0.01% |
333,899
-33,593
| -9% | -$298K |
2024 Q4
6 quarters
|
|
1746
Lightbridge
LTBR
$189M
| $2.97M | ﹤0.01% |
338,400
-315,500
| -48% | -$3.55M |
2025 Q3
3 quarters
|
|
1747
Janus Henderson Mortgage-Backed Securities ETF
JMBS
$6.3B
| $2.97M | ﹤0.01% |
66,083
+9,783
| +17% | +$442K |
2025 Q3
3 quarters
|
|
1748
Cerence
CRNC
$400M
| $2.97M | ﹤0.01% |
262,568
+230,700
| +724% | +$2.26M |
2025 Q4
2 quarters
|
|
1749
InnovAge Holding
INNV
$1.26B
| $2.96M | ﹤0.01% |
249,633
-121,184
| -33% | -$992K |
2021 Q2
20 quarters
|
|
1750
Schwab US REIT ETF
SCHH
$10.8B
| $2.96M | ﹤0.01% |
+124,900
| New | +$2.91M |
2026 Q2
0 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.