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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
FLR icon
3401
Fluor
FLR
$6.96B
– –
-278,200
Closed -$11.7M
FLRN icon
3402
State Street SPDR Bloomberg Investment Grade Floating Rate ETF
FLRN
$2.97B
– –
-1,171,600
Closed -$36.2M
FMB icon
3403
First Trust Managed Municipal ETF
FMB
$2.06B
– –
-26,773
Closed -$1.36M
FND icon
3404
Floor & Decor
FND
$6.32B
– –
-18,700
Closed -$1.38M
FNDX icon
3405
Schwab Fundamental US Large Company Index ETF
FNDX
$27.4B
– –
-138,800
Closed -$3.65M
FNGD icon
3406
MicroSectors FANG+ Index -3X Inverse Leveraged ETNs due January 8, 2038
FNGD
$332M
– –
-16,977
Closed -$869K
FOA icon
3407
Finance of America Companies
FOA
$203M
– –
-30,287
Closed -$679K
FOSL icon
3408
Fossil Group
FOSL
$311M
– –
-1,692,485
Closed -$4.35M
FPAY
3409
DELISTED
FlexShopper
FPAY
– –
-213,980
Closed -$137K
FPE icon
3410
First Trust Preferred Securities and Income ETF
FPE
$6.33B
– –
-898,623
Closed -$16.4M
FR icon
3411
First Industrial Realty Trust
FR
$8.4B
– –
-186,100
Closed -$9.58M
FUTY icon
3412
Fidelity MSCI Utilities Index ETF
FUTY
$2.31B
– –
-6,200
Closed -$350K
FXU icon
3413
First Trust Utilities AlphaDEX Fund
FXU
$827M
– –
-5,400
Closed -$245K
GBCI icon
3414
Glacier Bancorp
GBCI
$6.4B
– –
-61,600
Closed -$3M
GDXD icon
3415
MicroSectors Gold Miners -3x Inverse Leveraged ETN
GDXD
$627M
– –
-2,997
Closed -$520K
GEF icon
3416
Greif
GEF
$5B
– –
-22,400
Closed -$1.34M
GEOS icon
3417
Geospace Technologies
GEOS
$67.9M
– –
-24,800
Closed -$470K
GGLL icon
3418
Direxion Daily GOOGL Bull 2X ETF
GGLL
$943M
– –
-122,003
Closed -$7.7M
GHLD
3419
DELISTED
Guild Holdings
GHLD
– –
-109,300
Closed -$2.18M
GIB icon
3420
CGI
GIB
$15.3B
– –
-24,300
Closed -$2.17M
GKOS icon
3421
Glaukos
GKOS
$11B
– –
-57,892
Closed -$4.72M
GLOB icon
3422
Globant
GLOB
$1.67B
– –
-437,900
Closed -$25.1M
GLSI icon
3423
Greenwich LifeSciences
GLSI
$248M
– –
-38,400
Closed -$382K
DMRA
3424
Damora Therapeutics, Inc. Ordinary Shares
DMRA
$1.91B
– –
-15,044
Closed -$56K
GLUE icon
3425
Monte Rosa Therapeutics
GLUE
$1.36B
– –
-395,733
Closed -$2.93M
135 136
137
138 139

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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.