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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

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
MSGM icon
3326
Motorsport Games
MSGM
$18.7M
$84.7K ﹤0.01%
+29,200
New +$69.2K
EDTK icon
3327
Skillful Craftsman
EDTK
$14.1M
$83.7K ﹤0.01%
96,700
-13,900
-13% -$13.4K
RBOT
3328
DELISTED
Vicarious Surgical
RBOT
$83.5K ﹤0.01%
11,134
-1,500
-12% -$10.9K
KALA icon
3329
KALA BIO
KALA
$17.9M
$82.8K ﹤0.01%
+348
New +$67.9K
CVRX icon
3330
CVRx
CVRX
$78.3M
$82.3K ﹤0.01%
+14,000
New +$96.6K
GRCE
3331
Grace Therapeutics
GRCE
$43.5M
$82K ﹤0.01%
27,625
-14,556
-35% -$38.7K
VTGN icon
3332
VistaGen Therapeutics
VTGN
$11.8M
$81K ﹤0.01%
40,500
+15,700
+63% +$35.7K
YQ
3333
17 Education & Technology Group
YQ
$23.2M
$80.7K ﹤0.01%
36,830
+15,600
+73% +$30.2K
COYA icon
3334
Coya Therapeutics
COYA
$110M
$80.5K ﹤0.01%
14,000
+1,800
+15% +$10.4K
IMDX
3335
Insight Molecular Diagnostics
IMDX
$121M
$78.8K ﹤0.01%
+26,100
New +$78.9K
SBFM
3336
Sunshine Biopharma
SBFM
$2.85M
$77.9K ﹤0.01%
+5,409
New +$79K
CLRO icon
3337
ClearOne Inc
CLRO
$15.2M
$77.3K ﹤0.01%
13,447
-1,081
-7% -$7.52K
SOHO
3338
DELISTED
Sotherly Hotels
SOHO
$76.7K ﹤0.01%
80,714
+200
+0.2% +$158
ANRO icon
3339
Alto Neuroscience
ANRO
$1.26B
$76.3K ﹤0.01%
+34,700
New +$82.6K
UONE icon
3340
Urban One Class A
UONE
$23.5M
$75.5K ﹤0.01%
4,720
+10
+0.2% +$155
PCLA
3341
PicoCELA Inc
PCLA
$61M
$74K ﹤0.01%
+1,523
New +$34K
ARMP icon
3342
Armata Pharmaceuticals
ARMP
$177M
$73.9K ﹤0.01%
38,896
+300
+0.8% +$486
ELUT icon
3343
Elutia
ELUT
$38M
$73.3K ﹤0.01%
37,016
-700
-2% -$1.42K
WRAP icon
3344
Wrap Technologies
WRAP
$97.4M
$73K ﹤0.01%
+46,800
New +$70.5K
LONA
3345
LeonaBio Inc
LONA
$73.9M
$72.8K ﹤0.01%
24,100
+2,200
+10% +$6.23K
PSHG icon
3346
Performance Shipping
PSHG
$21.5M
$72.8K ﹤0.01%
41,584
+13,184
+46% +$20.7K
SOGP
3347
Sound Group
SOGP
$48.1M
$72K ﹤0.01%
15,158
INCR
3348
Intercure
INCR
$54.9M
$71.9K ﹤0.01%
48,900
+500
+1% +$739
AAME icon
3349
Atlantic American Corp
AAME
$29M
$71.1K ﹤0.01%
33,400
+300
+0.9% +$502
GROV icon
3350
Grove Collaborative
GROV
$44M
$70.8K ﹤0.01%
61,600
+5,200
+9% +$6.15K

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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.