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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 | |
|---|---|---|---|---|---|---|---|
1401
Interactive Brokers
IBKR
$38.7B
| $5.56M | 0.01% |
63,900
-397,800
| -86% | -$33.1M |
2020 Q2
24 quarters
|
|
1402
C4 Therapeutics
CCCC
$390M
| $5.56M | 0.01% |
1,189,828
-1,271,987
| -52% | -$4.35M |
2025 Q1
5 quarters
|
|
1403
Vanguard Information Technology ETF
VGT
$150B
| $5.53M | 0.01% |
+46,309
| New | +$5.07M |
2026 Q2
0 quarters
|
|
1404
Tilly's
TLYS
$141M
| $5.51M | 0.01% |
1,312,712
+463,398
| +55% | +$2.1M |
2014 Q4
46 quarters
|
|
1405
Bankwell Financial Group
BWFG
$527M
| $5.51M | 0.01% |
93,748
-13,800
| -13% | -$731K |
2015 Q4
42 quarters
|
|
1406
Barclays
BCS
$75.3B
| $5.51M | 0.01% |
204,986
-3,659,000
| -95% | -$88.2M |
2026 Q1
1 quarter
|
|
1407
MFA Financial
MFA
$654M
| $5.5M | 0.01% |
567,525
-209,500
| -27% | -$2.03M |
2020 Q4
22 quarters
|
|
1408
Canadian National Railway
CNI
$73.7B
| $5.5M | 0.01% |
46,100
-414,400
| -90% | -$47.2M |
2024 Q2
8 quarters
|
|
1409
UFP Industries
UFPI
$4.41B
| $5.49M | 0.01% |
60,500
-2,500
| -4% | -$218K |
2021 Q3
19 quarters
|
|
1410
Red Cat Holdings
RCAT
$699M
| $5.48M | 0.01% |
514,126
-901,700
| -64% | -$10.4M |
2026 Q1
1 quarter
|
|
1411
ADMA Biologics
ADMA
$2.47B
| $5.46M | 0.01% |
652,530
-610,104
| -48% | -$5.56M |
2021 Q2
20 quarters
|
|
1412
Kamada
KMDA
$449M
| $5.45M | 0.01% |
742,418
-20,530
| -3% | -$162K |
2013 Q4
50 quarters
|
|
1413
First Financial Bankshares
FFIN
$4.27B
| $5.4M | 0.01% |
156,208
+63,400
| +68% | +$2.05M |
2025 Q4
2 quarters
|
|
1414
BlackSky Technology
BKSY
$710M
| $5.4M | 0.01% |
+193,581
| New | +$6.99M |
2026 Q2
0 quarters
|
|
1415
Ternium
TX
$11.6B
| $5.4M | 0.01% |
126,500
-60,200
| -32% | -$2.71M |
2020 Q3
23 quarters
|
|
1416
Cadre Holdings
CDRE
$1.18B
| $5.39M | 0.01% |
189,144
+21,944
| +13% | +$661K |
2022 Q2
16 quarters
|
|
1417
Orion Office REIT
ONL
$123M
| $5.39M | 0.01% |
1,865,800
+159,700
| +9% | +$437K |
2022 Q1
17 quarters
|
|
1418
Viant Technology
DSP
$287M
| $5.39M | 0.01% |
425,741
-16,059
| -4% | -$181K |
2021 Q3
19 quarters
|
|
1419
Cohu
COHU
$2.62B
| $5.36M | 0.01% |
72,500
-12,000
| -14% | -$600K |
2014 Q3
47 quarters
|
|
1420
Ginkgo Bioworks
DNA
$674M
| $5.35M | 0.01% |
539,856
+439,400
| +437% | +$3.67M |
2026 Q1
1 quarter
|
|
1421
2x Bitcoin ETF
BITX
$1.31B
| $5.35M | 0.01% |
+518,000
| New | +$8.41M |
2026 Q2
0 quarters
|
|
1422
Douglas Elliman
DOUG
$129M
| $5.34M | 0.01% |
3,019,624
-131,500
| -4% | -$236K |
2021 Q4
18 quarters
|
|
1423
Standex International
SXI
$3.31B
| $5.34M | 0.01% |
+14,920
| New | +$4.17M |
2026 Q2
0 quarters
|
|
1424
Financial Institutions
FISI
$785M
| $5.34M | 0.01% |
136,904
-66,027
| -33% | -$2.35M |
2013 Q2
52 quarters
|
|
1425
J. Jill
JILL
$347M
| $5.33M | 0.01% |
335,800
-19,800
| -6% | -$258K |
2018 Q3
31 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.