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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
XENE icon
3076
Xenon Pharmaceuticals
XENE
$6.31B
$269K ﹤0.01%
8,600
-146,100
-94% -$4.77M
STHO icon
3077
Star Holdings Shares of Beneficial Interest
STHO
$117M
$269K ﹤0.01%
34,399
+2,900
+9% +$20K
FPAY
3078
DELISTED
FlexShopper
FPAY
$269K ﹤0.01%
223,780
+43,002
+24% +$54.6K
DHC
3079
Diversified Healthcare Trust
DHC
$2.02B
$269K ﹤0.01%
75,000
+64,300
+601% +$186K
DRH icon
3080
Diamondrock Hospitality Co
DRH
$2.5B
$268K ﹤0.01%
+35,000
New +$261K
SMIN icon
3081
iShares MSCI India Small-Cap ETF
SMIN
$773M
$266K ﹤0.01%
+3,450
New +$248K
JBI icon
3082
Janus International
JBI
$664M
$266K ﹤0.01%
+32,700
New +$249K
WBTN
3083
WEBTOON Entertainment Inc
WBTN
$1.15B
$264K ﹤0.01%
29,066
+14,766
+103% +$128K
AVD icon
3084
American Vanguard Corp
AVD
$64M
$262K ﹤0.01%
66,752
+40,052
+150% +$167K
OS
3085
DELISTED
OneStream Inc
OS
$260K ﹤0.01%
+9,200
New +$229K
IYC icon
3086
iShares US Consumer Discretionary ETF
IYC
$1.22B
$259K ﹤0.01%
+2,600
New +$241K
KLRS
3087
Kalaris Therapeutics
KLRS
$92.4M
$258K ﹤0.01%
96,751
+77,500
+403% +$350K
CGCP icon
3088
Capital Group Core Plus Income ETF
CGCP
$8.53B
$257K ﹤0.01%
+11,400
New +$253K
BLIN icon
3089
Bridgeline Digital
BLIN
$13.7M
$256K ﹤0.01%
183,829
-14,700
-7% -$23.9K
DFEM icon
3090
Dimensional Emerging Markets Core Equity 2 ETF
DFEM
$9.38B
$255K ﹤0.01%
+8,600
New +$236K
NVDQ icon
3091
T-Rex 2X Inverse NVIDIA Daily Target ETF
NVDQ
$13.6M
$255K ﹤0.01%
+9,370
New +$462K
IMPP icon
3092
Imperial Petroleum
IMPP
$205M
$251K ﹤0.01%
81,600
+7,900
+11% +$21.7K
OLMA icon
3093
Olema Pharmaceuticals
OLMA
$913M
$250K ﹤0.01%
58,800
-5,800
-9% -$25.9K
BV icon
3094
BrightView Holdings
BV
$1.08B
$250K ﹤0.01%
15,000
-3,800
-20% -$56.8K
NRIX icon
3095
Nurix Therapeutics
NRIX
$2.76B
$249K ﹤0.01%
21,900
-37,600
-63% -$406K
BL icon
3096
BlackLine
BL
$1.82B
$249K ﹤0.01%
+4,400
New +$227K
TMHC
3097
DELISTED
Taylor Morrison
TMHC
$249K ﹤0.01%
4,053
-113,300
-97% -$6.58M
JAVA icon
3098
JPMorgan Active Value ETF
JAVA
$7.2B
$249K ﹤0.01%
+3,800
New +$237K
BLTE
3099
Belite Bio
BLTE
$7.17B
$248K ﹤0.01%
+4,300
New +$262K
GLSI icon
3100
Greenwich LifeSciences
GLSI
$248M
$248K ﹤0.01%
27,300
+14,800
+118% +$141K
122 123
124
125 126

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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.