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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
LNTH icon
3451
Lantheus
LNTH
$6.54B
– –
-77,182
Closed -$5.85M –
CYPH icon
3452
Cypherpunk Technologies Inc
CYPH
$300M
– –
-725,120
Closed -$576K –
LSTA icon
3453
Lisata Therapeutics
LSTA
$11.3M
– –
-131,715
Closed -$660K –
LUV icon
3454
Southwest Airlines
LUV
$19.6B
– –
-197,380
Closed -$7.42M –
LYG icon
3455
Lloyds Banking Group
LYG
$77.4B
– –
-2,528,180
Closed -$12.7M –
MA icon
3456
Mastercard
MA
$545B
– –
-194,651
Closed -$97.3M –
MAA icon
3457
Mid-America Apartment Communities
MAA
$13.6B
– –
-122,149
Closed -$14.9M –
MAN icon
3458
ManpowerGroup
MAN
$1.98B
– –
-40,052
Closed -$1.18M –
MAPS icon
3459
DELISTED
WM TECHNOLOGY INC A
MAPS
– –
-1,927,014
Closed -$1.27M –
MASI icon
3460
DELISTED
Masimo
MASI
– –
-239,500
Closed -$42.6M –
MBIN icon
3461
Merchants Bancorp
MBIN
$2.23B
– –
-49,089
Closed -$2.11M –
MCHI icon
3462
iShares MSCI China ETF
MCHI
$5.75B
– –
-50,200
Closed -$2.82M –
MDB icon
3463
MongoDB
MDB
$28.9B
– –
-140,780
Closed -$34.5M –
MDY icon
3464
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$25.8B
– –
-12,720
Closed -$7.85M –
MET icon
3465
MetLife
MET
$64.1B
– –
-14,700
Closed -$1.04M –
METC icon
3466
Ramaco Resources Class A
METC
$474M
– –
-323,564
Closed -$5M –
MGA icon
3467
Magna International
MGA
$17.7B
– –
-353,484
Closed -$19.7M –
MIST icon
3468
Milestone Pharmaceuticals
MIST
$91.6M
– –
-129,705
Closed -$154K –
MLPA icon
3469
Global X MLP ETF
MLPA
$2.31B
– –
-7,200
Closed -$388K –
MLPX icon
3470
Global X MLP & Energy Infrastructure ETF
MLPX
$3.58B
– –
-5,100
Closed -$377K –
MLR icon
3471
Miller Industries
MLR
$590M
– –
-23,000
Closed -$1.05M –
MRSH icon
3472
Marsh
MRSH
$91B
– –
-365,500
Closed -$63.4M –
MMM icon
3473
3M
MMM
$87.7B
– –
-94,600
Closed -$13.7M –
MMYT icon
3474
MakeMyTrip
MMYT
$4.32B
– –
-68,567
Closed -$2.56M –
MOAT icon
3475
VanEck Morningstar Wide Moat ETF
MOAT
$11.8B
– –
-3,900
Closed -$377K –
137 138
139
140 141

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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.