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Jim Simons

Jim Simons Renaissance Technologies

AUM $63.9B
1-Year Est. Return 45.56%
 

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
+16.99%
1 Year Est. Return
+45.56%
3 Year Est. Return
+129.95%
5 Year Est. Return
+153.6%
10 Year Est. Return
+738.31%
AUM
$75.2B
AUM Growth
+$9.1B
Cap. Flow
+$1.81B
Cap. Flow %
2.4%
Top 10 Hldgs %
12.06%
Holding
4,018
New
612
Increased
1,577
Reduced
1,314
Closed
496

Top Buys

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$798M
2
NFLX icon
Netflix
NFLX
+$608M
3
UNH icon
UnitedHealth
UNH
+$517M
4
AAPL icon
Apple
AAPL
+$461M
5
GEV icon
GE Vernova
GEV
+$296M

Sector Composition

Rank Sector Weight
1 Technology 19.57%
2 Healthcare 15.8%
3 Consumer Discretionary 12.38%
4 Financials 11.53%
5 Industrials 8.92%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
VRP icon
1351
Invesco Variable Rate Preferred ETF
VRP
$3.01B
$6.46M 0.01%
264,159
+100,908
+62% +$2.43M
KMDA icon
1352
Kamada
KMDA
$420M
$6.45M 0.01%
832,005
+23,700
+3% +$161K
THFF icon
1353
First Financial Corp
THFF
$973M
$6.44M 0.01%
118,773
+26,400
+29% +$1.31M
SLV icon
1354
iShares Silver Trust
SLV
$31.4B
$6.43M 0.01%
196,000
+117,200
+149% +$3.58M
PBYI icon
1355
Puma Biotechnology
PBYI
$452M
$6.43M 0.01%
1,874,713
+45,500
+2% +$145K
EHC icon
1356
Encompass Health
EHC
$12.2B
$6.43M 0.01%
52,400
+1,500
+3% +$171K
JLL icon
1357
Jones Lang LaSalle
JLL
$16.9B
$6.42M 0.01%
25,089
+4,300
+21% +$986K
BWB icon
1358
Bridgewater Bancshares
BWB
$622M
$6.42M 0.01%
403,247
+52,500
+15% +$769K
MLAB icon
1359
Mesa Laboratories
MLAB
$632M
$6.41M 0.01%
68,027
+59,827
+730% +$6.57M
KEQU icon
1360
Kewaunee Scientific
KEQU
$104M
$6.4M 0.01%
109,011
+10,800
+11% +$401K
MUR icon
1361
Murphy Oil
MUR
$4.98B
$6.4M 0.01%
284,309
-3,091
-1% -$68.9K
SHBI icon
1362
Shore Bancshares
SHBI
$798M
$6.39M 0.01%
406,315
+10,300
+3% +$145K
NKTR icon
1363
Nektar Therapeutics
NKTR
$2.56B
$6.38M 0.01%
247,060
-66,392
-21% -$745K
TNDM icon
1364
Tandem Diabetes Care
TNDM
$1.62B
$6.38M 0.01%
342,327
+56,200
+20% +$1.11M
LINE
1365
Lineage Inc
LINE
$9.79B
$6.38M 0.01%
146,569
-252,631
-63% -$12.2M
MUNI icon
1366
PIMCO Intermediate Municipal Bond Active Exchange-Traded Fund
MUNI
$3.12B
$6.37M 0.01%
124,000
+104,200
+526% +$5.32M
SFNC icon
1367
Simmons First National
SFNC
$3.46B
$6.35M 0.01%
335,005
+62,848
+23% +$1.18M
NTLA icon
1368
Intellia Therapeutics
NTLA
$1.68B
$6.35M 0.01%
+676,900
New +$5.56M
FSS icon
1369
Federal Signal
FSS
$7.54B
$6.34M 0.01%
59,600
-21,200
-26% -$1.89M
GDX icon
1370
VanEck Gold Miners ETF
GDX
$26.9B
$6.31M 0.01%
121,300
+28,800
+31% +$1.43M
CIO
1371
DELISTED
City Office REIT
CIO
$6.31M 0.01%
1,182,415
-73,600
-6% -$369K
SHM icon
1372
State Street SPDR Nuveen ICE Short Term Municipal Bond ETF
SHM
$3.48B
$6.31M 0.01%
131,890
+101,490
+334% +$4.81M
TFI icon
1373
State Street SPDR Nuveen ICE Municipal Bond ETF
TFI
$3.18B
$6.31M 0.01%
141,200
+87,319
+162% +$3.88M
USPH icon
1374
US Physical Therapy
USPH
$1.23B
$6.29M 0.01%
80,423
-4,900
-6% -$361K
ALLY icon
1375
Ally Financial
ALLY
$13.6B
$6.29M 0.01%
+161,400
New +$5.59M

Similar funds

Jim Simons's Q2 2025 Portfolio in Review

As of Q2 2025, Jim Simons held 4,018 positions worth $75.2B, up 14% from $66.1B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons's Q2 2025 filing shows 612 new, 1,577 increased, 1,314 reduced and 496 closed positions. Its largest new stake was UnitedHealth: 1,352,129 shares worth $422M. The largest sale was Broadcom, an estimated $527M.

By sector, the portfolio is most concentrated in Technology at 20% of assets, up from 17% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q2 2025 buy was UnitedHealth: 1,352,129 shares worth $422M.
  • Jim Simons added most to NVIDIA in Q2 2025, an estimated $798M increase.
  • Jim Simons's biggest Q2 2025 reduction was Broadcom, cutting an estimated $527M.
  • Jim Simons fully exited Advanced Micro Devices in Q2 2025, selling an estimated $328M.
  • Jim Simons's ten largest holdings make up 12% of its $75.2B portfolio in Q2 2025.
  • Jim Simons opened 612 new positions and closed 496 in Q2 2025.
  • Jim Simons's portfolio value rose 14% quarter-over-quarter to $75.2B.

Based on Renaissance Technologies's 13F filing for Q2 2025, filed 13 Aug 2025.