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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 | |
|---|---|---|---|---|---|---|---|
1276
Enerflex
EFXT
$2.99B
| $6.85M | 0.01% |
279,561
+67,361
| +32% | +$1.68M |
2023 Q1
13 quarters
|
|
1277
Fair Isaac
FICO
$17.4B
| $6.83M | 0.01% |
+5,720
| New | +$6.41M |
2026 Q2
0 quarters
|
|
1278
Prothena Corp
PRTA
$438M
| $6.83M | 0.01% |
697,615
+90,100
| +15% | +$890K |
2019 Q3
27 quarters
|
|
1279
D.R. Horton
DHI
$39.3B
| $6.81M | 0.01% |
41,838
-237,700
| -85% | -$35.5M |
2025 Q4
2 quarters
|
|
1280
Cactus
WHD
$4.35B
| $6.81M | 0.01% |
+133,000
| New | +$7.42M |
2026 Q2
0 quarters
|
|
1281
Ally Financial
ALLY
$11.6B
| $6.8M | 0.01% |
+147,900
| New | +$6.42M |
2026 Q2
0 quarters
|
|
1282
Donegal Group Class A
DGICA
$693M
| $6.79M | 0.01% |
359,911
-32,800
| -8% | -$569K |
2014 Q4
46 quarters
|
|
1283
Riskified
RSKD
$1.18B
| $6.78M | 0.01% |
1,344,500
-14,400
| -1% | -$67.1K |
2021 Q4
18 quarters
|
|
1284
Vontier
VNT
$4.64B
| $6.74M | 0.01% |
232,300
+96,771
| +71% | +$3.09M |
2021 Q2
20 quarters
|
|
1285
2x Ether ETF
ETHU
$1.07B
| $6.73M | 0.01% |
+589,700
| New | +$12.5M |
2026 Q2
0 quarters
|
|
1286
DELISTED
RE/MAX Holdings
RMAX
| $6.71M | 0.01% |
680,565
-33,000
| -5% | -$288K |
2015 Q1
45 quarters
|
|
1287
Cencora
COR
$65.5B
| $6.68M | 0.01% |
+23,620
| New | +$6.81M |
2026 Q2
0 quarters
|
|
1288
Turning Point Brands
TPB
$1.28B
| $6.68M | 0.01% |
+78,745
| New | +$6.54M |
2026 Q2
0 quarters
|
|
1289
FuboTV Inc
FUBO
$249M
| $6.67M | 0.01% |
725,047
+95,400
| +15% | +$1.02M |
2023 Q1
13 quarters
|
|
1290
Mechanics Bancorp
MCHB
$3.23B
| $6.66M | 0.01% |
418,892
+205,418
| +96% | +$3.08M |
2025 Q3
3 quarters
|
|
1291
MGE Energy Inc
MGEE
$2.75B
| $6.63M | 0.01% |
81,300
+13,700
| +20% | +$1.06M |
2025 Q1
5 quarters
|
|
1292
Aptiv
APTV
$9.33B
| $6.62M | 0.01% |
107,900
+30,900
| +40% | +$1.89M |
2025 Q4
2 quarters
|
|
1293
Saul Centers
BFS
$730M
| $6.62M | 0.01% |
177,074
-9,400
| -5% | -$328K |
2013 Q2
52 quarters
|
|
1294
Avalo Therapeutics
AVTX
$699M
| $6.6M | 0.01% |
357,200
+237,086
| +197% | +$3.75M |
2025 Q3
3 quarters
|
|
1295
Acacia Research
ACTG
$410M
| $6.59M | 0.01% |
1,415,088
+7,504
| +0.5% | +$36.1K |
2015 Q1
45 quarters
|
|
1296
Turkcell
TKC
$4.23B
| $6.59M | 0.01% |
1,120,301
-529,406
| -32% | -$3.25M |
2025 Q2
4 quarters
|
|
1297
Capital City Bank Group
CCBG
$853M
| $6.56M | 0.01% |
132,671
-42,200
| -24% | -$1.96M |
2013 Q2
52 quarters
|
|
1298
AtriCure
ATRC
$2.98B
| $6.55M | 0.01% |
234,100
-74,600
| -24% | -$2.1M |
2022 Q2
16 quarters
|
|
1299
Bausch Health
BHC
$2.39B
| $6.53M | 0.01% |
1,324,549
-251,223
| -16% | -$1.35M |
2024 Q3
7 quarters
|
|
1300
iShares Ethereum Trust ETF
ETHA
$8.73B
| $6.53M | 0.01% |
183,000
+177,900
| +3,488% | +$8.28M |
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.