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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
MSC
3776
Studio City International Holdings
MSC
$327M
– –
-15,485
Closed -$56.1K
MTD icon
3777
Mettler-Toledo International
MTD
$28.8B
– –
-18,300
Closed -$21.6M
MTW icon
3778
Manitowoc
MTW
$702M
– –
-53,449
Closed -$459K
MVIS icon
3779
Microvision
MVIS
$86.6M
– –
-3,750
Closed -$69.7K
MX icon
3780
Magnachip Semiconductor
MX
$142M
– –
-18,900
Closed -$64.8K
NE icon
3781
Noble Corp
NE
$7.1B
– –
-348,290
Closed -$8.25M
NEGG icon
3782
Newegg Commerce
NEGG
$398M
– –
-7,586
Closed -$39.1K
NEXT icon
3783
NextDecade
NEXT
$1.8B
– –
-188,200
Closed -$1.46M
NIC icon
3784
Nicolet Bankshares
NIC
$3.72B
– –
-6,582
Closed -$717K
NNN icon
3785
NNN REIT
NNN
$8.71B
– –
-338,000
Closed -$14.4M
NOBL icon
3786
ProShares S&P 500 Dividend Aristocrats ETF
NOBL
$11.9B
– –
-67,000
Closed -$3.42M
NOC icon
3787
Northrop Grumman
NOC
$81.8B
– –
-101,300
Closed -$51.9M
NOW icon
3788
ServiceNow
NOW
$132B
– –
-1,361,505
Closed -$217M
NSPR icon
3789
InspireMD
NSPR
$39.9M
– –
-31,378
Closed -$84.4K
NTRS icon
3790
Northern Trust
NTRS
$34.4B
– –
-426,495
Closed -$42.1M
NVDL icon
3791
GraniteShares ETF Trust GraniteShares 2x Long NVDA Daily ETF
NVDL
$3.62B
– –
-586,500
Closed -$7.31M
NVEE
3792
DELISTED
NV5 Global
NVEE
– –
-16,400
Closed -$316K
NYXH
3793
Nyxoah
NYXH
$159M
– –
-12,200
Closed -$85.2K
OCGN icon
3794
Ocugen
OCGN
$465M
– –
-3,459,283
Closed -$2.44M
OGS icon
3795
ONE Gas
OGS
$5B
– –
-4,600
Closed -$348K
OIH icon
3796
VanEck Oil Services ETF
OIH
$1.97B
– –
-2,390
Closed -$626K
OKE icon
3797
Oneok
OKE
$57.7B
– –
-633,611
Closed -$62.9M
OKYO
3798
OKYO Pharma
OKYO
$79.8M
– –
-13,946
Closed -$17.7K
OPTN
3799
DELISTED
OptiNose
OPTN
– –
-12,748
Closed -$117K
ORC
3800
Orchid Island Capital
ORC
$1.31B
– –
-560,638
Closed -$4.22M
150 151
152
153 154

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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.