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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
+17.5%
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
$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
SNN icon
3876
Smith & Nephew
SNN
$12.6B
– –
-96,250
Closed -$2.95M
SNOA icon
3877
Sonoma Pharmaceuticals
SNOA
$6.56M
– –
-17,800
Closed -$50.6K
SOGP
3878
Sound Group
SOGP
$48.1M
– –
-15,158
Closed -$72K
SONM icon
3879
DNA X Inc
SONM
$5.36M
– –
-856
Closed -$18.8K
SPEM icon
3880
State Street SPDR Portfolio Emerging Markets ETF
SPEM
$17.6B
– –
-23,300
Closed -$996K
SPHD icon
3881
Invesco S&P 500 High Dividend Low Volatility ETF
SPHD
$3.39B
– –
-7,700
Closed -$366K
SPHQ icon
3882
Invesco S&P 500 Quality ETF
SPHQ
$19.7B
– –
-32,400
Closed -$2.31M
SPIR icon
3883
Spire Global
SPIR
$574M
– –
-32,300
Closed -$384K
SPYM
3884
State Street SPDR Portfolio S&P 500 ETF
SPYM
$168B
– –
-33,628
Closed -$2.44M
SPMO icon
3885
Invesco S&P 500 Momentum ETF
SPMO
$21.7B
– –
-40,100
Closed -$4.51M
SPRC icon
3886
SciSparc
SPRC
$3.91M
– –
-230
Closed -$13.5K
SPSC icon
3887
SPS Commerce
SPSC
$2.7B
– –
-10,060
Closed -$1.37M
SPTN
3888
DELISTED
SpartanNash
SPTN
– –
-752,978
Closed -$19.9M
SPY icon
3889
State Street SPDR S&P 500 ETF Trust
SPY
$807B
– –
-7,800
Closed -$4.82M
SR icon
3890
Spire
SR
$4.87B
– –
-23,100
Closed -$1.69M
SRE icon
3891
Sempra
SRE
$55.9B
– –
-291,694
Closed -$22.1M
SRRK icon
3892
Scholar Rock
SRRK
$6.34B
– –
-291,200
Closed -$10.3M
SSB icon
3893
SouthState Bank Corp
SSB
$10.7B
– –
-38,259
Closed -$3.52M
SSBK
3894
DELISTED
Southern States Bancshares
SSBK
– –
-49,600
Closed -$1.8M
SSD icon
3895
Simpson Manufacturing
SSD
$8.19B
– –
-11,700
Closed -$1.82M
SSY
3896
DELISTED
SunLink Health Systems
SSY
– –
-235,578
Closed -$207K
STAA icon
3897
STAAR Surgical
STAA
$1.24B
– –
-31,900
Closed -$535K
STKL
3898
DELISTED
SunOpta
STKL
– –
-77,047
Closed -$447K
STR
3899
DELISTED
Sitio Royalties
STR
– –
-17,000
Closed -$312K
STRM
3900
DELISTED
Streamline Health Solutions
STRM
– –
-16,357
Closed -$84.9K
154 155
156
157 158

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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.