Jim Simons Renaissance Technologies
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$798M |
| 2 |
Netflix
NFLX
|
+$608M |
| 3 |
UnitedHealth
UNH
|
+$517M |
| 4 |
Apple
AAPL
|
+$461M |
| 5 |
GE Vernova
GEV
|
+$296M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$527M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$372M |
| 3 |
Meta Platforms (Facebook)
META
|
+$362M |
| 4 |
Advanced Micro Devices
AMD
|
+$328M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
2001
Mineralys Therapeutics
MLYS
$2.39B
| $2.39M | ﹤0.01% |
176,926
-374
| -0.2% | -$5.42K |
|
2002
Rentokil
RTO
$12.1B
| $2.39M | ﹤0.01% |
+99,700
| New | +$2.31M |
|
2003
Seer Inc
SEER
$118M
| $2.39M | ﹤0.01% |
1,117,710
+291,704
| +35% | +$584K |
|
2004
iShares Russell Mid-Cap Value ETF
IWS
$16.1B
| $2.39M | ﹤0.01% |
+18,100
| New | +$2.27M |
|
2005
Protalix BioTherapeutics
PLX
$190M
| $2.39M | ﹤0.01% |
1,615,003
+426,050
| +36% | +$872K |
|
|
ASM
2006
Avino Silver & Gold Mines
ASM
$1.21B
| $2.39M | ﹤0.01% |
663,500
+549,900
| +484% | +$1.48M |
|
2007
Radcom
RDCM
$170M
| $2.39M | ﹤0.01% |
175,733
-6,900
| -4% | -$84.4K |
|
2008
Nokia
NOK
$59B
| $2.38M | ﹤0.01% |
460,180
-3,206,200
| -87% | -$16.5M |
|
2009
Enovis
ENOV
$1.42B
| $2.38M | ﹤0.01% |
+75,967
| New | +$2.51M |
|
2010
Myriad Genetics
MYGN
$309M
| $2.38M | ﹤0.01% |
448,374
+198,600
| +80% | +$1.17M |
|
2011
Astrana Health
ASTH
$1.78B
| $2.38M | ﹤0.01% |
95,600
-93,100
| -49% | -$2.62M |
|
2012
Valens Semiconductor
VLN
$210M
| $2.37M | ﹤0.01% |
902,230
-28,970
| -3% | -$66.8K |
|
2013
First Trust Exchange-Traded Fund IV First Trust Tactical High Yield ETF
HYLS
$1.64B
| $2.36M | ﹤0.01% |
56,535
-48,661
| -46% | -$2M |
|
2014
Compugen
CGEN
$237M
| $2.36M | ﹤0.01% |
1,327,100
-68,172
| -5% | -$101K |
|
|
BTC
2015
Grayscale Bitcoin Mini Trust ETF
BTC
$3.36B
| $2.36M | ﹤0.01% |
49,360
+20,100
| +69% | +$878K |
|
2016
iShares Core US Aggregate Bond ETF
AGG
$138B
| $2.35M | ﹤0.01% |
+23,700
| New | +$2.32M |
|
|
KLC
2017
KinderCare Learning Companies
KLC
$550M
| $2.35M | ﹤0.01% |
232,300
+186,300
| +405% | +$2.15M |
|
2018
Invesco Total Return Bond ETF
GTO
$2.48B
| $2.34M | ﹤0.01% |
50,000
+19,900
| +66% | +$922K |
|
|
ZK
2019
DELISTED
Zeekr
ZK
| $2.34M | ﹤0.01% |
91,800
-190,385
| -67% | -$4.69M |
|
2020
Sprout Social
SPT
$579M
| $2.34M | ﹤0.01% |
+111,862
| New | +$2.37M |
|
2021
Valhi
VHI
$463M
| $2.32M | ﹤0.01% |
143,817
+3,200
| +2% | +$51.1K |
|
2022
Dimensional US Core Equity 2 ETF
DFAC
$49.9B
| $2.32M | ﹤0.01% |
64,800
+53,700
| +484% | +$1.79M |
|
2023
Structure Therapeutics
GPCR
$3.83B
| $2.32M | ﹤0.01% |
111,900
+96,100
| +608% | +$2.11M |
|
2024
Imperial Oil
IMO
$64B
| $2.32M | ﹤0.01% |
29,195
+17,995
| +161% | +$1.28M |
|
2025
Johnson Controls International
JCI
$92.6B
| $2.32M | ﹤0.01% |
21,944
-201,200
| -90% | -$18.5M |
|
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.