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Jim Simons

Jim Simons Renaissance Technologies

AUM $63.9B
1-Year Est. Return 45.56%
 

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
+2.8%
1 Year Est. Return
+45.56%
3 Year Est. Return
+129.95%
5 Year Est. Return
+153.6%
10 Year Est. Return
+738.31%
AUM
$64.5B
AUM Growth
-$11.3B
Cap. Flow
-$10.1B
Cap. Flow %
-15.68%
Top 10 Hldgs %
12.13%
Holding
3,923
New
466
Increased
1,028
Reduced
1,682
Closed
737

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$616M
2
NFLX icon
Netflix
NFLX
+$481M
3
MU icon
Micron Technology
MU
+$416M
4
TSLA icon
Tesla
TSLA
+$416M
5
PG icon
Procter & Gamble
PG
+$322M

Top Sells

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$885M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$660M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$463M
4
APP icon
Applovin
APP
+$430M
5
META icon
Meta Platforms (Facebook)
META
+$354M

Sector Composition

Rank Sector Weight
1 Technology 20.84%
2 Healthcare 15.77%
3 Consumer Discretionary 13.88%
4 Industrials 9.94%
5 Financials 8.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
DMRC icon
3351
Digimarc Corp
DMRC
$167M
– –
-62,200
Closed -$608K
DNUT icon
3352
Krispy Kreme
DNUT
$573M
– –
-636,100
Closed -$2.46M
DOCN icon
3353
DigitalOcean
DOCN
$15.7B
– –
-167,000
Closed -$5.7M
DOG
3354
ProShares Short Dow30
DOG
$87.3M
– –
-31,200
Closed -$759K
DOV icon
3355
Dover
DOV
$28B
– –
-17,600
Closed -$2.94M
DPRO
3356
Draganfly
DPRO
$169M
– –
-168,051
Closed -$1.37M
DRH icon
3357
Diamondrock Hospitality Co
DRH
$2.5B
– –
-219,300
Closed -$1.75M
DRI icon
3358
Darden Restaurants
DRI
$25.9B
– –
-61,300
Closed -$11.7M
DRTS icon
3359
Alpha Tau Medical
DRTS
$1.25B
– –
-61,900
Closed -$279K
DRUG
3360
Bright Minds Biosciences
DRUG
$779M
– –
-3,500
Closed -$212K
DRVN icon
3361
Driven Brands
DRVN
$2.05B
– –
-120,300
Closed -$1.94M
DY icon
3362
Dycom Industries
DY
$12.3B
– –
-128,700
Closed -$37.5M
EAF icon
3363
GrafTech
EAF
$201M
– –
-78,931
Closed -$1.01M
EARN
3364
Ellington Residential Mortgage REIT
EARN
$163M
– –
-42,500
Closed -$232K
EBAY icon
3365
eBay
EBAY
$45.5B
– –
-808,840
Closed -$73.6M
ECL icon
3366
Ecolab
ECL
$78.1B
– –
-104,142
Closed -$28.5M
EDSA icon
3367
Edesa Biotech
EDSA
$51.1M
– –
-25,000
Closed -$61.8K
EEFT icon
3368
Euronet Worldwide
EEFT
$2.66B
– –
-161,645
Closed -$14.2M
EGBN icon
3369
Eagle Bancorp
EGBN
$877M
– –
-54,000
Closed -$1.09M
EGP icon
3370
EastGroup Properties
EGP
$10.9B
– –
-77,700
Closed -$13.2M
ELP
3371
DELISTED
Companhia Paranaense de Energia (COPEL)
ELP
– –
-541,600
Closed -$5.31M
ELVN icon
3372
Enliven Therapeutics
ELVN
$4.24B
– –
-59,000
Closed -$1.21M
PDC
3373
Perpetuals.com Ltd
PDC
$20.7M
– –
-25,363
Closed -$64.8K
EME icon
3374
Emcor
EME
$36.8B
– –
-6,000
Closed -$3.9M
EMLP icon
3375
First Trust North American Energy Infrastructure Fund
EMLP
$4.15B
– –
-9,000
Closed -$345K
133 134
135
136 137

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Jim Simons's Q4 2025 Portfolio in Review

As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.

  • Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
  • Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
  • Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
  • Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
  • Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
  • Jim Simons opened 466 new positions and closed 737 in Q4 2025.
  • Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.

Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.