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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
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
+17.5%
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
$75.8B
AUM Growth
+$582M
Cap. Flow
-$5.41B
Cap. Flow %
-7.14%
Top 10 Hldgs %
11.47%
Holding
4,038
New
516
Increased
1,457
Reduced
1,457
Closed
581

Top Buys

Rank Stock Value
1
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$546M
2
MSFT icon
Microsoft
MSFT
+$480M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$362M
4
META icon
Meta Platforms (Facebook)
META
+$350M
5
KO icon
Coca-Cola
KO
+$266M

Top Sells

Rank Stock Value
1
HOOD icon
Robinhood
HOOD
+$1.04B
2
PLTR icon
Palantir
PLTR
+$800M
3
AAPL icon
Apple
AAPL
+$516M
4
NFLX icon
Netflix
NFLX
+$326M
5
NVDA icon
NVIDIA
NVDA
+$313M

Sector Composition

Rank Sector Weight
1 Technology 21.71%
2 Healthcare 15.16%
3 Consumer Discretionary 11.81%
4 Communication Services 10.53%
5 Financials 9.27%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
CIVI
3551
DELISTED
Civitas Resources
CIVI
– –
-35,104
Closed -$966K
CLMT icon
3552
Calumet Specialty Products
CLMT
$4.29B
– –
-29,600
Closed -$466K
CLPT icon
3553
ClearPoint Neuro
CLPT
$470M
– –
-43,900
Closed -$524K
CLRO icon
3554
ClearOne Inc
CLRO
$15.2M
– –
-13,447
Closed -$77.3K
CLVT icon
3555
Clarivate
CLVT
$1.25B
– –
-1,636,400
Closed -$7.04M
CNA icon
3556
CNA Financial
CNA
$13.8B
– –
-76,500
Closed -$3.56M
CNC icon
3557
Centene
CNC
$32.6B
– –
-339,612
Closed -$18.4M
CNM icon
3558
Core & Main
CNM
$8.64B
– –
-36,900
Closed -$2.23M
CNP icon
3559
CenterPoint Energy
CNP
$26.7B
– –
-947,146
Closed -$34.8M
COCO icon
3560
Vita Coco
COCO
$3.77B
– –
-7,600
Closed -$274K
CODI icon
3561
Compass Diversified
CODI
$924M
– –
-205,700
Closed -$1.29M
COF icon
3562
Capital One
COF
$137B
– –
-55,704
Closed -$11.9M
COLB icon
3563
Columbia Banking Systems
COLB
$9.18B
– –
-229,096
Closed -$5.36M
COWG icon
3564
Pacer US Large Cap Cash Cows Growth Leaders ETF
COWG
$2.35B
– –
-69,100
Closed -$2.43M
CPK icon
3565
Chesapeake Utilities
CPK
$3.26B
– –
-15,750
Closed -$1.89M
CREG
3566
DELISTED
Smart Powerr
CREG
– –
-202
Closed -$4.71K
CRGX
3567
DELISTED
CARGO Therapeutics
CRGX
– –
-323,400
Closed -$1.33M
CRMD icon
3568
CorMedix
CRMD
$639M
– –
-152,200
Closed -$1.88M
CRNC icon
3569
Cerence
CRNC
$389M
– –
-311,117
Closed -$3.18M
CRVS icon
3570
Corvus Pharmaceuticals
CRVS
$1.27B
– –
-165,188
Closed -$661K
CSGS
3571
DELISTED
CSG Systems International
CSGS
– –
-37,312
Closed -$2.44M
CUBE icon
3572
CubeSmart
CUBE
$9.4B
– –
-134,688
Closed -$5.72M
CVRX icon
3573
CVRx
CVRX
$78.3M
– –
-14,000
Closed -$82.3K
DAL icon
3574
Delta Air Lines
DAL
$60B
– –
-514,900
Closed -$25.3M
DBEF icon
3575
Xtrackers MSCI EAFE Hedged Equity ETF
DBEF
$9.46B
– –
-60,095
Closed -$2.63M
141 142
143
144 145

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Jim Simons's Q3 2025 Portfolio in Review

As of Q3 2025, Jim Simons held 4,038 positions worth $75.8B, up 0.77% from $75.2B the previous quarter. Its ten largest holdings account for 11% of the portfolio.

Jim Simons withdrew a net $5.41B in Q3 2025, closing 581 positions and reducing 1,457 holdings. Its most notable exit was GE Aerospace, an estimated $235M position sold in full.

By sector, the portfolio is most concentrated in Technology at 22% of assets, up from 20% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in Alphabet (Google) Class C worth $419M.

  • Jim Simons's largest Q3 2025 buy was Alphabet (Google) Class C: 1,720,002 shares worth $419M.
  • Jim Simons added most to Alphabet (Google) Class A in Q3 2025, an estimated $546M increase.
  • Jim Simons's biggest Q3 2025 reduction was Robinhood, cutting an estimated $1.04B.
  • Jim Simons fully exited GE Aerospace in Q3 2025, selling an estimated $235M.
  • Jim Simons's ten largest holdings make up 11% of its $75.8B portfolio in Q3 2025.
  • Jim Simons opened 516 new positions and closed 581 in Q3 2025.
  • Jim Simons's portfolio value rose 0.77% quarter-over-quarter to $75.8B.

Based on Renaissance Technologies's 13F filing for Q3 2025, filed 13 Nov 2025.