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Jim Simons

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
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
Avg Time Held
3.5 years
Top 10 Avg Time Held
1.5 years
Top 20 Avg Time Held
1.3 years

Top Sells

Rank Stock Value
1
MU icon
Micron Technology
MU
+$1.46B
2
SNDK icon
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 23.58%
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
BCO icon
1126
Brink's
BCO
$4.42B
$8.88M 0.01%
93,932
-34,600
-27% -$3.6M
2022 Q1
17 quarters
IEI icon
1127
iShares 3-7 Year Treasury Bond ETF
IEI
$16.9B
$8.87M 0.01%
+75,500
New +$8.89M
2026 Q2
0 quarters
CSTL icon
1128
Castle Biosciences
CSTL
$1.01B
$8.85M 0.01%
371,200
-161,600
-30% -$3.6M
2021 Q4
18 quarters
SPSB icon
1129
State Street SPDR Portfolio Short Term Corporate Bond ETF
SPSB
$11.2B
$8.84M 0.01%
+294,500
New +$8.84M
2026 Q2
0 quarters
IA icon
1130
Innovative Solutions & Support
IA
$350M
$8.82M 0.01%
490,155
+187,262
+62% +$3.62M
2013 Q2
52 quarters
STEP icon
1131
StepStone Group
STEP
$3.54B
$8.82M 0.01%
213,300
+121,800
+133% +$6.03M
2026 Q1
1 quarter
PAYS icon
1132
Paysign
PAYS
$859M
$8.79M 0.01%
1,073,783
-457,289
-30% -$3.03M
2019 Q2
28 quarters
GLBE icon
1133
Global E Online
GLBE
$7.02B
$8.79M 0.01%
253,100
-22,800
-8% -$721K
2026 Q1
1 quarter
CATY icon
1134
Cathay General Bancorp
CATY
$4.05B
$8.78M 0.01%
141,571
+107,300
+313% +$6.09M
2025 Q4
2 quarters
ESS icon
1135
Essex Property Trust
ESS
$17.5B
$8.75M 0.01%
30,006
-101,960
-77% -$27.4M
2026 Q1
1 quarter
TILE icon
1136
Interface
TILE
$2.06B
$8.7M 0.01%
242,741
-217,415
-47% -$6.35M
2021 Q4
18 quarters
EMN icon
1137
Eastman Chemical
EMN
$7.26B
$8.7M 0.01%
129,840
+105,100
+425% +$7.69M
2024 Q3
7 quarters
MMSI icon
1138
Merit Medical Systems
MMSI
$5.44B
$8.7M 0.01%
125,412
-188,800
-60% -$12.5M
2024 Q1
9 quarters
GPRE icon
1139
Green Plains
GPRE
$995M
$8.69M 0.01%
564,977
-114,300
-17% -$1.82M
2022 Q4
14 quarters
TCBK icon
1140
TriCo Bancshares
TCBK
$1.69B
$8.67M 0.01%
161,067
+4,124
+3% +$209K
2013 Q2
52 quarters
ALTO icon
1141
Alto Ingredients
ALTO
$276M
$8.66M 0.01%
1,518,521
-155,136
-9% -$792K
2022 Q1
17 quarters
UHT icon
1142
Universal Health Realty Income Trust
UHT
$525M
$8.62M 0.01%
196,510
-23,600
-11% -$969K
2014 Q3
47 quarters
USAS icon
1143
Americas Gold and Silver
USAS
$1.22B
$8.6M 0.01%
1,822,600
+775,100
+74% +$4.47M
2026 Q1
1 quarter
RMR icon
1144
The RMR Group
RMR
$301M
$8.6M 0.01%
418,714
-21,100
-5% -$399K
2016 Q2
40 quarters
BLTE icon
1145
Belite Bio
BLTE
$6.22B
$8.59M 0.01%
55,763
+3,763
+7% +$577K
2026 Q1
1 quarter
OGS icon
1146
ONE Gas
OGS
$4.75B
$8.55M 0.01%
+110,900
New +$9.23M
2026 Q2
0 quarters
CSIQ icon
1147
Canadian Solar
CSIQ
$663M
$8.52M 0.01%
531,902
+32,200
+6% +$516K
2026 Q1
1 quarter
ATNI icon
1148
ATN International
ATNI
$396M
$8.5M 0.01%
320,932
-16,803
-5% -$457K
2016 Q2
40 quarters
NUS icon
1149
Nu Skin
NUS
$242M
$8.49M 0.01%
1,607,692
-92,804
-5% -$593K
2017 Q4
34 quarters
SITE icon
1150
SiteOne Landscape Supply
SITE
$4.22B
$8.48M 0.01%
+74,100
New +$8.95M
2026 Q2
0 quarters

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.