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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
BMRC icon
1626
Bank of Marin Bancorp
BMRC
$462M
$3.67M 0.01%
132,381
+12,989
+11% +$339K
CMRC
1627
Commerce.com Inc Series 1
CMRC
$184M
$3.66M 0.01%
1,237,800
-14,300
-1% -$41K
EML icon
1628
Eastern Company
EML
$154M
$3.66M 0.01%
131,437
-1,800
-1% -$39.5K
FRST icon
1629
Primis Financial Corp
FRST
$413M
$3.65M 0.01%
223,070
-47,100
-17% -$687K
PROV icon
1630
Provident Financial
PROV
$113M
$3.64M 0.01%
211,347
-1,006
-0.5% -$17.1K
SKT icon
1631
Tanger
SKT
$4.42B
$3.63M 0.01%
92,074
-188,298
-67% -$6.98M
BDTX icon
1632
Black Diamond Therapeutics
BDTX
$116M
$3.63M 0.01%
1,962,394
+318,647
+19% +$779K
PINE
1633
Alpine Income Property Trust
PINE
$347M
$3.61M 0.01%
174,000
+52,800
+44% +$1.03M
TWFG
1634
TWFG Inc
TWFG
$1.46B
$3.61M 0.01%
149,900
+31,573
+27% +$621K
IGIC icon
1635
International General Insurance
IGIC
$1.14B
$3.6M 0.01%
137,700
+20,443
+17% +$521K
SPNT icon
1636
SiriusPoint
SPNT
$2.7B
$3.6M 0.01%
150,087
+132,487
+753% +$3.04M
DRS icon
1637
Leonardo DRS
DRS
$11.9B
$3.6M 0.01%
84,394
-109,600
-56% -$4.87M
RLAY icon
1638
Relay Therapeutics
RLAY
$4.37B
$3.6M 0.01%
192,399
-481,200
-71% -$6.99M
NPKI
1639
NPK International
NPKI
$1.18B
$3.59M ﹤0.01%
225,367
-136,800
-38% -$2.06M
AP icon
1640
Ampco-Pittsburgh
AP
$190M
$3.58M ﹤0.01%
414,419
-8,800
-2% -$89.3K
VBNK
1641
VersaBank
VBNK
$647M
$3.58M ﹤0.01%
154,100
+41,400
+37% +$747K
CCK icon
1642
Crown Holdings
CCK
$12.9B
$3.57M ﹤0.01%
31,900
-516,100
-94% -$52.1M
CRK icon
1643
Comstock Resources
CRK
$3.99B
$3.56M ﹤0.01%
238,700
+106,800
+81% +$1.63M
GLRE icon
1644
Greenlight Captial
GLRE
$512M
$3.55M ﹤0.01%
219,230
+141,580
+182% +$2.43M
MCFT icon
1645
MasterCraft Boat Holdings
MCFT
$598M
$3.55M ﹤0.01%
137,328
+3,872
+3% +$90.1K
KRO icon
1646
KRONOS Worldwide
KRO
$996M
$3.53M ﹤0.01%
557,132
-22,300
-4% -$153K
FORR icon
1647
Forrester Research
FORR
$224M
$3.52M ﹤0.01%
418,206
-18,500
-4% -$121K
CNXN icon
1648
PC Connection
CNXN
$2.04B
$3.5M ﹤0.01%
48,000
-10,000
-17% -$667K
SSO icon
1649
ProShares Ultra S&P500
SSO
$8.51B
$3.49M ﹤0.01%
+51,855
New +$3.32M
AVR
1650
Anteris Technologies
AVR
$870M
$3.47M ﹤0.01%
+352,500
New +$2.68M

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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.