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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
NECB icon
1501
Northeast Community Bancorp
NECB
$371M
$4.73M 0.01%
170,625
-5,580
-3% -$139K
VONG icon
1502
Vanguard Russell 1000 Growth ETF
VONG
$46.2B
$4.73M 0.01%
37,000
-42,700
-54% -$5.3M
NVAX icon
1503
Novavax
NVAX
$1.34B
$4.73M 0.01%
501,783
+4,400
+0.9% +$39.4K
NGVT icon
1504
Ingevity
NGVT
$2.59B
$4.72M 0.01%
63,200
-58,800
-48% -$4.23M
CCNE icon
1505
CNB Financial Corp
CCNE
$1.04B
$4.72M 0.01%
139,945
-48,500
-26% -$1.51M
FTNT icon
1506
Fortinet
FTNT
$121B
$4.72M 0.01%
30,700
-30,694
-50% -$3.55M
SSB icon
1507
SouthState Bank Corp
SSB
$10.8B
$4.69M 0.01%
+46,959
New +$4.53M
PANL icon
1508
Pangaea Logistics
PANL
$496M
$4.64M 0.01%
714,387
-31,713
-4% -$241K
PD icon
1509
PagerDuty
PD
$932M
$4.62M 0.01%
478,438
-300,400
-39% -$2.27M
PDLB icon
1510
Ponce Financial Group
PDLB
$501M
$4.61M 0.01%
231,135
-11,000
-5% -$201K
TBBK icon
1511
The Bancorp
TBBK
$2.82B
$4.59M 0.01%
+73,249
New +$4.2M
SLS icon
1512
SELLAS Life Sciences
SLS
$2.5B
$4.58M 0.01%
+310,364
New +$2.14M
IRTC icon
1513
iRhythm Holdings
IRTC
$4.06B
$4.58M 0.01%
38,500
-15,300
-28% -$1.78M
HP icon
1514
Helmerich & Payne
HP
$4.3B
$4.56M 0.01%
139,200
-241,900
-63% -$9.05M
WTBA icon
1515
West Bancorporation
WTBA
$511M
$4.56M 0.01%
171,752
-10,700
-6% -$260K
ARDX icon
1516
Ardelyx
ARDX
$1.01B
$4.55M 0.01%
892,593
-379,848
-30% -$2.32M
CHMG icon
1517
Chemung Financial Corp
CHMG
$403M
$4.53M 0.01%
60,679
+19,457
+47% +$1.3M
GLIBK
1518
Liberty Capital Corp Series C GCI Group Common Stock
GLIBK
$1.07B
$4.51M 0.01%
209,200
-36,100
-15% -$1.01M
LILA icon
1519
Liberty Latin America Class A
LILA
$1.67B
$4.5M 0.01%
574,500
-698,131
-55% -$3.89M
LKFN icon
1520
Lakeland Financial Corp
LKFN
$1.56B
$4.5M 0.01%
72,968
+14,424
+25% +$870K
FBLA
1521
FB Bancorp
FBLA
$252M
$4.5M 0.01%
298,973
+32,473
+12% +$460K
PRM icon
1522
Perimeter Solutions
PRM
$5.53B
$4.5M 0.01%
126,231
-465,026
-79% -$14.5M
LTRX icon
1523
Lantronix
LTRX
$272M
$4.5M 0.01%
764,888
+74,694
+11% +$479K
BALL icon
1524
Ball Corp
BALL
$16.4B
$4.49M 0.01%
+72,000
New +$4.23M
CERT icon
1525
Certara
CERT
$1.24B
$4.48M 0.01%
684,700
+330,200
+93% +$1.86M

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.