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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
UPBD icon
3951
Upbound Group
UPBD
$1.11B
– –
-9,000
Closed -$226K
URA icon
3952
Global X Uranium ETF
URA
$6.3B
– –
-13,600
Closed -$528K
UROY
3953
Uranium Royalty Corp
UROY
$1.59B
– –
-554,200
Closed -$1.39M
URTH icon
3954
iShares MSCI World ETF
URTH
$8.32B
– –
-22,600
Closed -$3.83M
URTY icon
3955
ProShares UltraPro Russell2000
URTY
$354M
– –
-12,600
Closed -$496K
USB icon
3956
US Bancorp
USB
$100B
– –
-940,700
Closed -$42.6M
BSIN
3957
Big Sky Industrial
BSIN
$74.8M
– –
-16,900
Closed -$23.7K
USHY icon
3958
iShares Broad USD High Yield Corporate Bond ETF
USHY
$29.1B
– –
-421,457
Closed -$15.8M
UTZ icon
3959
Utz Brands
UTZ
$1.25B
– –
-19,700
Closed -$247K
UVV icon
3960
Universal Corp
UVV
$1.15B
– –
-13,811
Closed -$804K
UWMC icon
3961
UWM Holdings
UWMC
$2.45B
– –
-56,900
Closed -$236K
VCIT icon
3962
Vanguard Intermediate-Term Corporate Bond ETF
VCIT
$67.5B
– –
-376,900
Closed -$31.3M
VCRB icon
3963
Vanguard Core Bond ETF
VCRB
$7.49B
– –
-5,700
Closed -$442K
VECO icon
3964
Veeco
VECO
$3.07B
– –
-208,810
Closed -$4.24M
VERV
3965
DELISTED
Verve Therapeutics
VERV
– –
-1,047,600
Closed -$11.8M
VERX icon
3966
Vertex
VERX
$1.98B
– –
-10,500
Closed -$371K
VFC icon
3967
VF Corp
VFC
$5.81B
– –
-2,528,200
Closed -$29.7M
VGIT icon
3968
Vanguard Intermediate-Term Treasury ETF
VGIT
$42.4B
– –
-144,500
Closed -$8.64M
VGSH icon
3969
Vanguard Short-Term Treasury ETF
VGSH
$30.2B
– –
-1,116,900
Closed -$65.7M
VIGL
3970
DELISTED
Vigil Neuroscience
VIGL
– –
-535,800
Closed -$4.26M
VIOO icon
3971
Vanguard S&P Small-Cap 600 ETF
VIOO
$4.31B
– –
-5,900
Closed -$597K
VKTX icon
3972
Viking Therapeutics
VKTX
$3.94B
– –
-32,700
Closed -$867K
VMC icon
3973
Vulcan Materials
VMC
$37.3B
– –
-67,865
Closed -$17.7M
VNLA icon
3974
Janus Henderson Short Duration Income ETF
VNLA
$3.35B
– –
-549,915
Closed -$27.1M
VOO icon
3975
Vanguard S&P 500 ETF
VOO
$1.03T
– –
-900
Closed -$511K
157 158
159
160 161

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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.