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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
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
Cap. Flow
+$958M
Cap. Flow %
1.32%
Top 10 Hldgs %
12.01%
Holding
3,761
New
548
Increased
1,084
Reduced
1,502
Closed
621

Top Sells

Rank Stock Value
1
MU icon
Micron Technology
MU
+$1.46B
2
SNDK
Sandisk
SNDK
+$1.13B
3
AAPL icon
Apple
AAPL
+$426M
4
LIN icon
Linde
LIN
+$316M
5
VRT icon
Vertiv
VRT
+$297M

Sector Composition

Rank Sector Weight
1 Technology 23.57%
2 Healthcare 14.84%
3 Consumer Discretionary 11.27%
4 Industrials 10.49%
5 Communication Services 8.87%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
CFBK icon
1676
CF Bankshares
CFBK
$235M
$3.36M ﹤0.01%
102,423
+7,944
+8% +$231K
HRTG icon
1677
Heritage Insurance Holdings
HRTG
$989M
$3.35M ﹤0.01%
128,630
-43,900
-25% -$1.09M
IPI icon
1678
Intrepid Potash
IPI
$484M
$3.35M ﹤0.01%
102,294
-52,256
-34% -$1.99M
VSAT icon
1679
Viasat
VSAT
$11.4B
$3.35M ﹤0.01%
+37,329
New +$2.47M
ICL icon
1680
ICL Group
ICL
$6.96B
$3.34M ﹤0.01%
670,913
-503,265
-43% -$2.86M
FOX icon
1681
Fox Class B
FOX
$24.4B
$3.34M ﹤0.01%
+71,300
New +$3.96M
NKTX icon
1682
Nkarta
NKTX
$165M
$3.33M ﹤0.01%
1,177,652
-554,720
-32% -$1.56M
TTI icon
1683
TETRA Technologies
TTI
$1.25B
$3.33M ﹤0.01%
+293,525
New +$2.88M
VLN icon
1684
Valens Semiconductor
VLN
$210M
$3.32M ﹤0.01%
1,468,229
+156,529
+12% +$351K
RCKY icon
1685
Rocky Brands
RCKY
$353M
$3.31M ﹤0.01%
80,235
-3,300
-4% -$129K
SID icon
1686
Companhia Siderúrgica Nacional
SID
$1.19B
$3.3M ﹤0.01%
3,611,400
-1,407,800
-28% -$1.76M
SIDU icon
1687
Sidus Space
SIDU
$259M
$3.29M ﹤0.01%
+1,172,428
New +$4.49M
GNL icon
1688
Global Net Lease
GNL
$1.9B
$3.29M ﹤0.01%
368,100
-998,033
-73% -$9.33M
TAYD icon
1689
Taylor Devices
TAYD
$170M
$3.29M ﹤0.01%
56,062
+6,400
+13% +$346K
APC
1690
ARKO Petroleum
APC
$907M
$3.29M ﹤0.01%
+174,500
New +$3.35M
NOA
1691
North American Construction
NOA
$389M
$3.29M ﹤0.01%
247,000
-6,500
-3% -$91.8K
DBD icon
1692
Diebold Nixdorf
DBD
$2.45B
$3.28M ﹤0.01%
38,600
-35,200
-48% -$2.83M
IAUM icon
1693
iShares Gold Trust Micro
IAUM
$6.88B
$3.27M ﹤0.01%
+81,791
New +$3.68M
XLG icon
1694
Invesco S&P 500 Top 50 ETF
XLG
$11B
$3.26M ﹤0.01%
+53,300
New +$3.25M
CPSS icon
1695
Consumer Portfolio Services
CPSS
$208M
$3.26M ﹤0.01%
339,958
-16,200
-5% -$150K
IMCR icon
1696
Immunocore
IMCR
$1.74B
$3.25M ﹤0.01%
102,400
-61,600
-38% -$1.82M
FNLC icon
1697
First Bancorp
FNLC
$401M
$3.25M ﹤0.01%
93,357
-4,706
-5% -$140K
HTO
1698
H2O America
HTO
$2.65B
$3.24M ﹤0.01%
53,245
-104,655
-66% -$6.07M
IHRT icon
1699
iHeartMedia
IHRT
$464M
$3.24M ﹤0.01%
754,229
-74,500
-9% -$330K
BTGO
1700
BitGo Holdings
BTGO
$641M
$3.21M ﹤0.01%
+619,735
New +$5.09M

Similar funds

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.