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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

Top Sells

Rank Stock Value
1
AVGO icon
Broadcom
AVGO
+$527M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$372M
3
META icon
Meta Platforms (Facebook)
META
+$362M
4
AMD icon
Advanced Micro Devices
AMD
+$328M
5
PLTR icon
Palantir
PLTR
+$327M

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
VDC icon
3926
Vanguard Consumer Staples ETF
VDC
$7.92B
– –
-16,500
Closed -$3.61M
VEA icon
3927
Vanguard FTSE Developed Markets ETF
VEA
$236B
– –
-238,400
Closed -$12.1M
VDE icon
3928
Vanguard Energy ETF
VDE
$10.4B
– –
-8,500
Closed -$1.1M
VEL icon
3929
Velocity Financial
VEL
$720M
– –
-97,000
Closed -$1.81M
VERA icon
3930
Vera Therapeutics
VERA
$2.18B
– –
-40,600
Closed -$975K
VEU icon
3931
Vanguard FTSE All-World ex-US ETF
VEU
$70B
– –
-4,000
Closed -$243K
VGK icon
3932
Vanguard FTSE Europe ETF
VGK
$31B
– –
-66,800
Closed -$4.69M
VGT icon
3933
Vanguard Information Technology ETF
VGT
$147B
– –
-36,000
Closed -$2.44M
VLRS
3934
Controladora Vuela Compania de Aviacion
VLRS
$907M
– –
-33,100
Closed -$173K
VRDN icon
3935
Viridian Therapeutics
VRDN
$2.6B
– –
-320,300
Closed -$4.32M
VSXY
3936
Victoria's Secret
VSXY
$7.48B
– –
-551,100
Closed -$10.2M
VSH icon
3937
Vishay Intertechnology
VSH
$5.11B
– –
-15,825
Closed -$252K
VUSB icon
3938
Vanguard Ultra-Short Bond ETF
VUSB
$9.33B
– –
-1,812,700
Closed -$90.4M
VXF icon
3939
Vanguard Extended Market ETF
VXF
$31.9B
– –
-24,300
Closed -$4.19M
VXUS icon
3940
Vanguard Total International Stock ETF
VXUS
$162B
– –
-32,300
Closed -$2.01M
VYMI icon
3941
Vanguard International High Dividend Yield ETF
VYMI
$21.2B
– –
-14,000
Closed -$1.03M
WBD icon
3942
Warner Bros
WBD
$67.9B
– –
-296,459
Closed -$3.18M
WBS icon
3943
Webster Financial
WBS
$12.8B
– –
-8,735
Closed -$450K
WCN
3944
Waste Connections
WCN
$42B
– –
-5,761
Closed -$1.12M
WEC icon
3945
WEC Energy
WEC
$34.8B
– –
-3,400
Closed -$371K
WF icon
3946
Woori Financial
WF
$17.1B
– –
-40,400
Closed -$1.35M
WGMI icon
3947
CoinShares ETF Trust CoinShares Bitcoin Mining ETF
WGMI
$233M
– –
-36,400
Closed -$465K
WGS icon
3948
GeneDx Holdings
WGS
$2.44B
– –
-70,216
Closed -$6.22M
WHR icon
3949
Whirlpool
WHR
$2.84B
– –
-151,757
Closed -$13.7M
WKC icon
3950
World Kinect Corp
WKC
$1.88B
– –
-72,400
Closed -$2.05M
156 157
158
159 160

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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.