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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
ROL icon
76
Rollins
ROL
$17.8B
$179M 0.24%
3,174,382
+37,895
+1% +$2.13M
LOGI icon
77
Logitech
LOGI
$14.8B
$176M 0.23%
1,954,808
+199,500
+11% +$16.2M
PR
78
Permian Resources
PR
$18B
$174M 0.23%
12,808,677
+1,475,530
+13% +$19M
UNP icon
79
Union Pacific
UNP
$174B
$174M 0.23%
755,400
+37,500
+5% +$8.33M
VIRT icon
80
Virtu Financial
VIRT
$4.86B
$171M 0.23%
3,807,123
+103,400
+3% +$4.17M
INTC icon
81
Intel
INTC
$493B
$170M 0.23%
7,592,590
+7,221,596
+1,947% +$150M
WYNN icon
82
Wynn Resorts
WYNN
$10.8B
$170M 0.23%
1,812,656
+148,765
+9% +$12.6M
CPNG icon
83
Coupang
CPNG
$29.7B
$170M 0.23%
5,666,675
+305,000
+6% +$7.81M
RCL icon
84
Royal Caribbean
RCL
$82.1B
$167M 0.22%
533,601
-304,900
-36% -$72.6M
ALKS icon
85
Alkermes
ALKS
$8.26B
$166M 0.22%
5,810,160
+71,332
+1% +$2.12M
LYFT icon
86
Lyft
LYFT
$6.64B
$166M 0.22%
10,542,027
+2,422,700
+30% +$33.9M
K
87
DELISTED
Kellanova
K
$166M 0.22%
2,082,800
+748,072
+56% +$61.1M
TME icon
88
Tencent Music
TME
$14.3B
$163M 0.22%
8,363,490
+310,200
+4% +$4.87M
TKO icon
89
TKO Group
TKO
$14.2B
$162M 0.22%
892,254
-111,052
-11% -$17.8M
BMY icon
90
Bristol-Myers Squibb
BMY
$130B
$161M 0.21%
3,481,133
+1,407,000
+68% +$69.1M
BSX icon
91
Boston Scientific
BSX
$74.2B
$161M 0.21%
1,496,541
+844,988
+130% +$85.5M
SNOW icon
92
Snowflake
SNOW
$116B
$160M 0.21%
+717,000
New +$130M
GDDY icon
93
GoDaddy
GDDY
$11.5B
$157M 0.21%
869,700
+211,800
+32% +$38M
VEEV icon
94
Veeva Systems
VEEV
$38.4B
$148M 0.2%
512,600
+455,000
+790% +$113M
NTES icon
95
NetEase
NTES
$81.9B
$147M 0.2%
1,089,088
+55,000
+5% +$6.32M
MCK icon
96
McKesson
MCK
$105B
$145M 0.19%
198,126
+197,326
+24,666% +$139M
MUSA icon
97
Murphy USA
MUSA
$10B
$144M 0.19%
355,162
-21,400
-6% -$9.73M
NGD
98
DELISTED
New Gold Inc
NGD
$144M 0.19%
29,138,664
+1,056,300
+4% +$4.34M
WSM icon
99
Williams-Sonoma
WSM
$29.5B
$143M 0.19%
878,000
-366,200
-29% -$57.5M
TJX icon
100
TJX Companies
TJX
$172B
$141M 0.19%
1,143,100
+804,100
+237% +$102M

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.