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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
+16.99%
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
$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
FOSL icon
2026
Fossil Group
FOSL
$330M
$2.31M ﹤0.01%
1,562,064
+51,979
+3% +$65.5K
SPHQ icon
2027
Invesco S&P 500 Quality ETF
SPHQ
$20.1B
$2.31M ﹤0.01%
+32,400
New +$2.19M
LEN.B icon
2028
Lennar Class B
LEN.B
$20.1B
$2.3M ﹤0.01%
21,852
-23,500
-52% -$2.43M
MEC icon
2029
Mayville Engineering Co
MEC
$597M
$2.3M ﹤0.01%
144,000
+58,100
+68% +$830K
CRNT icon
2030
Ceragon Networks
CRNT
$198M
$2.3M ﹤0.01%
933,435
-356,200
-28% -$813K
TCBX icon
2031
Third Coast Bancshares
TCBX
$758M
$2.28M ﹤0.01%
69,739
-30,161
-30% -$920K
NABL icon
2032
N-able
NABL
$695M
$2.27M ﹤0.01%
280,300
-175,100
-38% -$1.31M
KRE icon
2033
State Street SPDR S&P Regional Banking ETF
KRE
$4.67B
$2.27M ﹤0.01%
+38,200
New +$2.13M
ITRG
2034
Integra Resources
ITRG
$550M
$2.26M ﹤0.01%
1,506,180
+864,600
+135% +$1.39M
CDP icon
2035
COPT Defense Properties
CDP
$4.23B
$2.26M ﹤0.01%
81,800
-294,800
-78% -$7.98M
AEP icon
2036
American Electric Power
AEP
$67.9B
$2.25M ﹤0.01%
21,669
-39,331
-64% -$4.09M
AVDL
2037
DELISTED
Avadel Pharmaceuticals
AVDL
$2.24M ﹤0.01%
253,600
-87,400
-26% -$768K
LBRT icon
2038
Liberty Energy
LBRT
$3.52B
$2.23M ﹤0.01%
194,400
-27,500
-12% -$333K
NUVL
2039
DELISTED
Nuvalent
NUVL
$2.23M ﹤0.01%
29,200
+500
+2% +$36.6K
CNM icon
2040
Core & Main
CNM
$8.62B
$2.23M ﹤0.01%
36,900
-281,700
-88% -$15.1M
VT icon
2041
Vanguard Total World Stock ETF
VT
$81.9B
$2.22M ﹤0.01%
+17,300
New +$2.07M
CLFD icon
2042
Clearfield
CLFD
$395M
$2.22M ﹤0.01%
51,200
-4,800
-9% -$165K
HELO icon
2043
JPMorgan Hedged Equity Laddered Overlay ETF
HELO
$4.75B
$2.22M ﹤0.01%
+35,500
New +$2.14M
AXIA
2044
DELISTED
AXIA Energia
AXIA
$2.22M ﹤0.01%
377,336
+255,851
+211% +$1.49M
CONY icon
2045
YieldMax COIN Option Income Strategy ETF
CONY
$334M
$2.22M ﹤0.01%
+24,290
New +$1.95M
BCYC
2046
Bicycle Therapeutics
BCYC
$284M
$2.21M ﹤0.01%
318,400
+16,900
+6% +$135K
BBW icon
2047
Build-A-Bear
BBW
$474M
$2.21M ﹤0.01%
42,877
-8,000
-16% -$339K
TKC icon
2048
Turkcell
TKC
$4.74B
$2.21M ﹤0.01%
+364,900
New +$2.22M
VSTS icon
2049
Vestis
VSTS
$1.87B
$2.21M ﹤0.01%
385,000
+7,000
+2% +$49.1K
MLPA icon
2050
Global X MLP ETF
MLPA
$2.28B
$2.2M ﹤0.01%
43,900
+22,900
+109% +$1.14M

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.