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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
ANGL icon
1126
VanEck Fallen Angel High Yield Bond ETF
ANGL
$3.11B
$8.96M 0.01%
306,000
-18,257
-6% -$519K
RVMD icon
1127
Revolution Medicines
RVMD
$43.9B
$8.96M 0.01%
243,504
+100,700
+71% +$3.87M
SMR icon
1128
NuScale Power
SMR
$4.01B
$8.96M 0.01%
+226,400
New +$5.68M
TASK icon
1129
TaskUs
TASK
$651M
$8.96M 0.01%
534,323
+73,500
+16% +$1.12M
GPOR icon
1130
Gulfport Energy Corp
GPOR
$3B
$8.95M 0.01%
44,500
+28,100
+171% +$5.24M
ARVN icon
1131
Arvinas
ARVN
$589M
$8.94M 0.01%
1,214,355
+1,082,055
+818% +$7.97M
IBTA icon
1132
Ibotta
IBTA
$729M
$8.93M 0.01%
244,000
+162,300
+199% +$7.58M
FIGS icon
1133
FIGS
FIGS
$2.33B
$8.9M 0.01%
1,577,300
+951,847
+152% +$4.39M
AMN icon
1134
AMN Healthcare
AMN
$1.28B
$8.89M 0.01%
430,200
-45,610
-10% -$948K
ORRF icon
1135
Orrstown Financial Services
ORRF
$853M
$8.88M 0.01%
278,946
+15,000
+6% +$444K
NSSC icon
1136
Napco Security Technologies
NSSC
$1.41B
$8.87M 0.01%
298,800
+45,700
+18% +$1.18M
BITO icon
1137
ProShares Bitcoin Strategy ETF
BITO
$1.44B
$8.86M 0.01%
+411,800
New +$8.49M
IBDS icon
1138
iShares iBonds Dec 2027 Term Corporate ETF
IBDS
$3.87B
$8.86M 0.01%
364,854
-48,046
-12% -$1.16M
BTSG icon
1139
BrightSpring Health Services
BTSG
$12B
$8.79M 0.01%
372,700
-292,700
-44% -$6.11M
QQQI icon
1140
NEOS Nasdaq 100 High Income ETF
QQQI
$14B
$8.79M 0.01%
+169,000
New +$8.28M
FARO
1141
DELISTED
Faro Technologies
FARO
$8.79M 0.01%
200,042
+125,700
+169% +$4.6M
CVGW
1142
DELISTED
Calavo Growers
CVGW
$8.76M 0.01%
329,474
+38,754
+13% +$1.01M
GD icon
1143
General Dynamics
GD
$107B
$8.75M 0.01%
30,000
-255,900
-90% -$70.4M
PCVX icon
1144
Vaxcyte
PCVX
$8.85B
$8.75M 0.01%
269,077
+72,800
+37% +$2.39M
PAYS icon
1145
Paysign
PAYS
$727M
$8.74M 0.01%
1,213,896
-61,006
-5% -$218K
AMG icon
1146
Affiliated Managers Group
AMG
$9.59B
$8.74M 0.01%
44,400
-2,600
-6% -$451K
LAUR icon
1147
Laureate Education
LAUR
$5.14B
$8.72M 0.01%
372,800
+74,500
+25% +$1.6M
GOTU icon
1148
Gaotu Techedu
GOTU
$413M
$8.71M 0.01%
2,414,000
-400
-0% -$1.37K
REG icon
1149
Regency Centers
REG
$14B
$8.71M 0.01%
122,323
-261,500
-68% -$18.7M
NGS icon
1150
Natural Gas Services Group
NGS
$477M
$8.71M 0.01%
337,342
-26,400
-7% -$593K
44 45
46
47 48

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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.