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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
BTCS icon
3526
BTCS Inc
BTCS
$53.3M
– –
-47,900
Closed -$105K
BTCW icon
3527
WisdomTree Bitcoin Fund
BTCW
$137M
– –
-6,100
Closed -$697K
BV icon
3528
BrightView Holdings
BV
$1.08B
– –
-15,000
Closed -$250K
BWXT icon
3529
BWX Technologies
BWXT
$15.6B
– –
-63,600
Closed -$9.16M
BX icon
3530
Blackstone
BX
$112B
– –
-266,700
Closed -$39.9M
BXP icon
3531
Boston Properties
BXP
$11B
– –
-29,100
Closed -$1.96M
CADL icon
3532
Candel Therapeutics
CADL
$865M
– –
-163,600
Closed -$828K
CAE icon
3533
CAE Inc. Common Shares
CAE
$8.47B
– –
-50,400
Closed -$1.48M
CATY icon
3534
Cathay General Bancorp
CATY
$4.31B
– –
-59,771
Closed -$2.72M
CBNK icon
3535
Capital Bancorp
CBNK
$616M
– –
-47,500
Closed -$1.6M
CBRE icon
3536
CBRE Group
CBRE
$44B
– –
-6,900
Closed -$967K
CBU icon
3537
Community Bank
CBU
$3.46B
– –
-6,708
Closed -$381K
CC icon
3538
Chemours
CC
$2.3B
– –
-311,845
Closed -$3.57M
CCS icon
3539
Century Communities
CCS
$2.04B
– –
-136,654
Closed -$7.7M
CDE icon
3540
Coeur Mining
CDE
$19B
– –
-3,338,289
Closed -$29.6M
CDLX icon
3541
Cardlytics
CDLX
$25.1M
– –
-12,058
Closed -$198K
CDZI icon
3542
Cadiz
CDZI
$295M
– –
-170,000
Closed -$508K
CETX icon
3543
Cemtrex
CETX
$5.2M
– –
-104
Closed -$17.1K
CGGO icon
3544
Capital Group Global Growth Equity ETF
CGGO
$12.1B
– –
-80,200
Closed -$2.56M
CGON icon
3545
CG Oncology
CGON
$6.62B
– –
-46,100
Closed -$1.2M
CGXU icon
3546
Capital Group International Focus Equity ETF
CGXU
$6.63B
– –
-15,500
Closed -$421K
CHD icon
3547
Church & Dwight Co
CHD
$24B
– –
-164,110
Closed -$15.8M
CHKP icon
3548
Check Point Software Technologies
CHKP
$13.7B
– –
-58,208
Closed -$12.9M
CHX
3549
DELISTED
ChampionX
CHX
– –
-2,412,616
Closed -$59.9M
CIBR icon
3550
First Trust NASDAQ Cybersecurity ETF
CIBR
$16B
– –
-53,200
Closed -$4.02M
140 141
142
143 144

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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.