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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
WLGS
3951
DELISTED
Wang & Lee Group
WLGS
– –
-47,641
Closed -$12.9K
WMB icon
3952
Williams Companies
WMB
$88.4B
– –
-20,000
Closed -$1.2M
WM icon
3953
Waste Management
WM
$90.7B
– –
-289,200
Closed -$67M
WMT icon
3954
Walmart Inc
WMT
$901B
– –
-2,936,204
Closed -$258M
WORX
3955
DELISTED
SCWORX CORP NEW
WORX
– –
-755
Closed -$7.7K
WPRT
3956
Westport Fuel Systems
WPRT
$36.7M
– –
-11,023
Closed -$40.9K
WTM icon
3957
White Mountains Insurance
WTM
$5.04B
– –
-600
Closed -$1.16M
WU icon
3958
Western Union
WU
$2.2B
– –
-852,200
Closed -$9.02M
WVE icon
3959
Wave Life Sciences
WVE
$993M
– –
-210,220
Closed -$1.7M
WWW icon
3960
Wolverine World Wide
WWW
$1.49B
– –
-108,500
Closed -$1.51M
XOP icon
3961
State Street SPDR S&P Oil & Gas Exploration & Production ETF
XOP
$3.67B
– –
-3,200
Closed -$421K
XPEL icon
3962
XPEL
XPEL
$1.32B
– –
-9,400
Closed -$276K
XSD icon
3963
State Street SPDR S&P Semiconductor ETF
XSD
$2.85B
– –
-6,000
Closed -$1.2M
PRKS icon
3964
United Parks & Resorts
PRKS
$2B
– –
-89,900
Closed -$4.09M
LOT
3965
Lotus Technology
LOT
$577M
– –
-48,500
Closed -$77.6K
AMDL icon
3966
GraniteShares 2x Long AMD Daily ETF
AMDL
$976M
– –
-119,800
Closed -$616K
MAAS
3967
Maase Inc
MAAS
$9.24B
– –
-334
Closed -$2.91K
FAAS
3968
DELISTED
DigiAsia
FAAS
– –
-24,391
Closed -$6.15K
SERV
3969
Serve Robotics
SERV
$425M
– –
-109,000
Closed -$627K
PAL
3970
Proficient Auto Logistics
PAL
$143M
– –
-41,400
Closed -$347K
OKLO
3971
Oklo
OKLO
$8.74B
– –
-1,096,400
Closed -$23.7M
LOGC
3972
DELISTED
ContextLogic
LOGC
– –
-60,744
Closed -$424K
CNR
3973
Core Natural Resources Inc
CNR
$4.65B
– –
-67,955
Closed -$5.24M
ETH
3974
Grayscale Ethereum Staking Mini ETF Shares
ETH
$1.72B
– –
-38,370
Closed -$661K
LB
3975
LandBridge Co
LB
$2.34B
– –
-80,096
Closed -$5.76M
157 158
159
160 161

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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.