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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
ALK icon
3476
Alaska Air
ALK
$5.3B
– –
-75,400
Closed -$3.73M
ALKT icon
3477
Alkami Technology
ALKT
$2.22B
– –
-130,900
Closed -$3.95M
AMED
3478
DELISTED
Amedisys
AMED
– –
-364,098
Closed -$35.8M
AMPY icon
3479
Amplify Energy
AMPY
$200M
– –
-189,468
Closed -$606K
AOA icon
3480
iShares Core 80/20 Aggressive Allocation ETF
AOA
$3.3B
– –
-6,100
Closed -$509K
APGE icon
3481
Apogee Therapeutics
APGE
$10.2B
– –
-41,100
Closed -$1.78M
APLE icon
3482
Apple Hospitality REIT
APLE
$3.75B
– –
-137,500
Closed -$1.6M
APO icon
3483
Apollo Global Management
APO
$84.8B
– –
-24,665
Closed -$3.5M
APPS icon
3484
Digital Turbine
APPS
$1.53B
– –
-131,800
Closed -$778K
AR icon
3485
Antero Resources
AR
$11.3B
– –
-1,152,500
Closed -$46.4M
ARGT icon
3486
Global X MSCI Argentina ETF
ARGT
$809M
– –
-17,239
Closed -$1.46M
ASAN icon
3487
Asana
ASAN
$2.28B
– –
-237,000
Closed -$3.2M
ASHR icon
3488
Xtrackers Harvest CSI 300 China A-Shares ETF
ASHR
$1.58B
– –
-284,400
Closed -$7.83M
ASLE icon
3489
AerSale
ASLE
$273M
– –
-163,800
Closed -$984K
AU icon
3490
AngloGold Ashanti
AU
$48.1B
– –
-490,261
Closed -$22.3M
AUB icon
3491
Atlantic Union Bankshares
AUB
$6.09B
– –
-342,002
Closed -$10.7M
AVDE icon
3492
Avantis International Equity ETF
AVDE
$18.8B
– –
-22,700
Closed -$1.68M
AVDV icon
3493
Avantis International Small Cap Value ETF
AVDV
$19.9B
– –
-7,400
Closed -$587K
AVDX
3494
DELISTED
AvidXchange
AVDX
– –
-1,910,400
Closed -$18.7M
AXGN icon
3495
Axogen
AXGN
$2.58B
– –
-142,000
Closed -$1.54M
AXON
3496
Axon Enterprise
AXON
$50B
– –
-1,500
Closed -$1.24M
AXS icon
3497
AXIS Capital
AXS
$7.3B
– –
-18,700
Closed -$1.94M
AZN icon
3498
AstraZeneca
AZN
$244B
– –
-651,887
Closed -$91.1M
BABA icon
3499
Alibaba
BABA
$293B
– –
-1,071,231
Closed -$121M
BAM icon
3500
Brookfield Asset Management
BAM
$89.2B
– –
-284,000
Closed -$15.7M
138 139
140
141 142

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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.