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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
SCZ icon
3851
iShares MSCI EAFE Small-Cap ETF
SCZ
$13.5B
– –
-60,300
Closed -$4.38M
SDA icon
3852
SunCar Technology Group
SDA
$81.7M
– –
-16,500
Closed -$42.1K
SDY icon
3853
State Street SPDR S&P Dividend ETF
SDY
$22.1B
– –
-11,800
Closed -$1.6M
SEM
3854
DELISTED
Select Medical
SEM
– –
-23,235
Closed -$353K
SEZL
3855
Sezzle
SEZL
$4.32B
– –
-199,900
Closed -$35.8M
SFBS
3856
ServisFirst Bancshares
SFBS
$4.88B
– –
-16,800
Closed -$1.3M
OLOX
3857
Olenox Industries
OLOX
$4.47M
– –
-67
Closed -$27.5K
SGMA
3858
DELISTED
Sigmatron International
SGMA
– –
-148,487
Closed -$442K
SHLD icon
3859
Global X Defense Tech ETF
SHLD
$7.67B
– –
-76,897
Closed -$4.63M
SHOO icon
3860
Steven Madden
SHOO
$3.53B
– –
-121,467
Closed -$2.91M
SHW icon
3861
Sherwin-Williams
SHW
$88.5B
– –
-28,102
Closed -$9.65M
SHY icon
3862
iShares 1-3 Year Treasury Bond ETF
SHY
$25.5B
– –
-736,571
Closed -$61M
SIL icon
3863
Global X Silver Miners ETF NEW
SIL
$4.86B
– –
-36,700
Closed -$1.77M
SIMO icon
3864
Silicon Motion
SIMO
$7.6B
– –
-11,500
Closed -$864K
SITC icon
3865
SITE Centers
SITC
$155M
– –
-192,964
Closed -$2.18M
SJM icon
3866
J.M. Smucker
SJM
$12.5B
– –
-43,100
Closed -$4.23M
SKX
3867
DELISTED
Skechers
SKX
– –
-32,000
Closed -$2.02M
SLNO
3868
DELISTED
Soleno Therapeutics
SLNO
– –
-45,200
Closed -$3.79M
SLV icon
3869
iShares Silver Trust
SLV
$31.5B
– –
-196,000
Closed -$6.43M
SLYG icon
3870
State Street SPDR S&P 600 Small Cap Growth ETF
SLYG
$5.2B
– –
-5,600
Closed -$497K
SMIN icon
3871
iShares MSCI India Small-Cap ETF
SMIN
$773M
– –
-3,450
Closed -$266K
SMR icon
3872
NuScale Power
SMR
$4.06B
– –
-226,400
Closed -$8.96M
SMTC icon
3873
Semtech
SMTC
$12.2B
– –
-43,216
Closed -$1.95M
SNBR
3874
DELISTED
Sleep Number
SNBR
– –
-90,200
Closed -$609K
SNEX icon
3875
StoneX
SNEX
$7.96B
– –
-131,996
Closed -$5.35M
153 154
155
156 157

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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.