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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B Turnover 31.08%
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
+24.48%
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
$72.6B
AUM Growth
+$8.69B
Cap. Flow
+$958M
Cap. Flow %
1.32%
Top 10 Hldgs %
12.01%
Holding
3,761
New
548
Increased
1,084
Reduced
1,502
Closed
621
Avg Time Held
3.5 years
Top 10 Avg Time Held
1.5 years
Top 20 Avg Time Held
1.3 years

Top Buys

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$1.08B
2
NVDA icon
NVIDIA
NVDA
+$938M
3
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$639M
4
NFLX icon
Netflix
NFLX
+$598M
5
AMZN icon
Amazon
AMZN
+$575M

Top Sells

Rank Stock Value
1
MU icon
Micron Technology
MU
+$1.46B
2
SNDK icon
Sandisk
SNDK
+$1.13B
3
AAPL icon
Apple
AAPL
+$426M
4
LIN icon
Linde
LIN
+$316M
5
VRT icon
Vertiv
VRT
+$297M

Sector Composition

Rank Sector Weight
1 Technology 23.58%
2 Healthcare 14.83%
3 Consumer Discretionary 11.24%
4 Industrials 10.49%
5 Communication Services 8.91%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow Held Since
IJH icon
3401
iShares Core S&P Mid-Cap ETF
IJH
$121B
– –
-5,000
Closed -$338K –
IJK icon
3402
iShares S&P Mid-Cap 400 Growth ETF
IJK
$10.4B
– –
-20,800
Closed -$2.09M –
IKT icon
3403
Inhibikase Therapeutics
IKT
$223M
– –
-16,500
Closed -$27.7K –
IMKTA icon
3404
Ingles Markets
IMKTA
$1.61B
– –
-20,284
Closed -$1.82M –
IMRX icon
3405
Immuneering
IMRX
$234M
– –
-72,875
Closed -$384K –
IMUX icon
3406
Immunic
IMUX
$96.1M
– –
-91,916
Closed -$1.02M –
IMXI icon
3407
International Money Express
IMXI
$293M
– –
-24,300
Closed -$384K –
INSM icon
3408
Insmed
INSM
$21B
– –
-20,300
Closed -$3.32M –
INSW icon
3409
International Seaways
INSW
$5.2B
– –
-78,950
Closed -$5.75M –
IONQ icon
3410
IonQ
IONQ
$12.5B
– –
-137,598
Closed -$3.97M –
IP icon
3411
International Paper
IP
$17.9B
– –
-652,500
Closed -$23.3M –
IRON icon
3412
Disc Medicine
IRON
$3.05B
– –
-31,820
Closed -$2.03M –
ITM icon
3413
VanEck Intermediate Muni ETF
ITM
$2.2B
– –
-17,900
Closed -$831K –
ITUB icon
3414
Itaú Unibanco
ITUB
$104B
– –
-4,894,713
Closed -$41M –
IWD icon
3415
iShares Russell 1000 Value ETF
IWD
$83.6B
– –
-93,700
Closed -$20M –
IX icon
3416
ORIX
IX
$39.4B
– –
-109,600
Closed -$3.29M –
IXC icon
3417
iShares Global Energy ETF
IXC
$3.3B
– –
-20,200
Closed -$1.16M –
IXUS icon
3418
iShares Core MSCI Total International Stock ETF
IXUS
$57.7B
– –
-6,100
Closed -$529K –
IYE icon
3419
iShares US Energy ETF
IYE
$1.8B
– –
-73,700
Closed -$4.77M –
IYF icon
3420
iShares US Financials ETF
IYF
$3.76B
– –
-5,700
Closed -$671K –
IYK icon
3421
iShares US Consumer Staples ETF
IYK
$1.63B
– –
-23,300
Closed -$1.63M –
JCPB icon
3422
JPMorgan Core Plus Bond ETF
JCPB
$16.1B
– –
-5,172
Closed -$243K –
JEPI icon
3423
JPMorgan Equity Premium Income ETF
JEPI
$45.8B
– –
-9,835
Closed -$557K –
JGRO icon
3424
JPMorgan Active Growth ETF
JGRO
$9.8B
– –
-6,500
Closed -$549K –
JHG icon
3425
DELISTED
Janus Henderson
JHG
– –
-36,200
Closed -$1.86M –
135 136
137
138 139

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Jim Simons's Q2 2026 Portfolio in Review

As of Q2 2026, Jim Simons held 3,761 positions worth $72.6B, up 14% from $63.9B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons's Q2 2026 filing shows 548 new, 1,084 increased, 1,502 reduced and 621 closed positions. Its largest new stake was Amazon: 2,290,710 shares worth $546M. The largest sale was Micron Technology, an estimated $1.46B.

By sector, the portfolio is most concentrated in Technology at 24% of assets, up from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Jim Simons's largest Q2 2026 buy was Amazon: 2,290,710 shares worth $546M.
  • Jim Simons added most to Meta Platforms (Facebook) in Q2 2026, an estimated $1.08B increase.
  • Jim Simons's biggest Q2 2026 reduction was Micron Technology, cutting an estimated $1.46B.
  • Jim Simons fully exited Applovin in Q2 2026, selling an estimated $174M.
  • Jim Simons's ten largest holdings make up 12% of its $72.6B portfolio in Q2 2026.
  • Jim Simons opened 548 new positions and closed 621 in Q2 2026.
  • Jim Simons's portfolio value rose 14% quarter-over-quarter to $72.6B.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.