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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
1-Year Est. Return 54.88%
 

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
+54.88%
3 Year Est. Return
+169.34%
5 Year Est. Return
+186.18%
10 Year Est. Return
+887.93%
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
BABX icon
3551
GraniteShares ETF Trust GraniteShares 2x Long BABA Daily ETF
BABX
$99.3M
– –
-13,700
Closed -$488K
BANL icon
3552
CBL International Ltd
BANL
$14.8M
– –
-1,000
Closed -$12.7K
BASE
3553
DELISTED
Couchbase
BASE
– –
-187,200
Closed -$2.95M
BBDO icon
3554
Banco Bradesco
BBDO
$33.4B
– –
-17,059
Closed -$35.5K
BDN
3555
Brandywine Realty Trust
BDN
$542M
– –
-405,598
Closed -$1.81M
BDSX icon
3556
Biodesix
BDSX
$251M
– –
-18,535
Closed -$232K
BE icon
3557
Bloom Energy
BE
$69.6B
– –
-173,800
Closed -$3.42M
BEAM icon
3558
Beam Therapeutics
BEAM
$2.74B
– –
-12,107
Closed -$236K
BHVN icon
3559
Biohaven
BHVN
$2.24B
– –
-109,052
Closed -$2.62M
BIL icon
3560
State Street SPDR Bloomberg 1-3 Month T-Bill ETF
BIL
$46.7B
– –
-1,255,300
Closed -$115M
BILL icon
3561
BILL Holdings
BILL
$5.11B
– –
-476,186
Closed -$21.9M
BILS icon
3562
State Street SPDR Bloomberg 3-12 Month T-Bill ETF
BILS
$3.91B
– –
-958,400
Closed -$95.4M
BILZ icon
3563
PIMCO Ultra Short Government Active ETF
BILZ
$1.03B
– –
-213,900
Closed -$21.6M
BKNG icon
3564
Booking.com
BKNG
$160B
– –
-482,900
Closed -$89M
BKR icon
3565
Baker Hughes
BKR
$63B
– –
-360,140
Closed -$15.8M
BKU icon
3566
Bankunited
BKU
$3.41B
– –
-258,400
Closed -$8.9M
BLCO icon
3567
Bausch + Lomb
BLCO
$6.06B
– –
-63,000
Closed -$914K
BMEA icon
3568
Biomea Fusion
BMEA
$92.8M
– –
-278,119
Closed -$592K
BON
3569
Bon Natural Life
BON
$9.35M
– –
-725
Closed -$1.7K
BOTJ icon
3570
Bank Of The James
BOTJ
$126M
– –
-11,477
Closed -$170K
BOXX icon
3571
Alpha Architect 1-3 Month Box ETF
BOXX
$13.5B
– –
-1,028,500
Closed -$115M
BRX icon
3572
Brixmor Property Group
BRX
$9.21B
– –
-17,500
Closed -$465K
BSBR icon
3573
Santander
BSBR
$43.2B
– –
-54,021
Closed -$254K
BSCP
3574
DELISTED
Invesco BulletShares 2025 Corporate Bond ETF
BSCP
– –
-2,068,800
Closed -$42.8M
BW icon
3575
Babcock & Wilcox
BW
$1.39B
– –
-257,300
Closed -$173K
141 142
143
144 145

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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.