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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
+2.8%
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
$64.5B
AUM Growth
-$11.3B
Cap. Flow
-$10.1B
Cap. Flow %
-15.68%
Top 10 Hldgs %
12.13%
Holding
3,923
New
466
Increased
1,028
Reduced
1,682
Closed
737

Top Buys

Rank Stock Value
1
COST icon
Costco
COST
+$616M
2
NFLX icon
Netflix
NFLX
+$481M
3
MU icon
Micron Technology
MU
+$416M
4
TSLA icon
Tesla
TSLA
+$416M
5
PG icon
Procter & Gamble
PG
+$322M

Top Sells

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$885M
2
GOOGL icon
Alphabet (Google) Class A
GOOGL
+$660M
3
GOOG icon
Alphabet (Google) Class C
GOOG
+$463M
4
APP icon
Applovin
APP
+$430M
5
META icon
Meta Platforms (Facebook)
META
+$354M

Sector Composition

Rank Sector Weight
1 Technology 20.84%
2 Healthcare 15.77%
3 Consumer Discretionary 13.88%
4 Industrials 9.94%
5 Financials 8.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UDOW icon
3776
ProShares UltraPro Dow 30
UDOW
$927M
– –
-33,000
Closed -$1.77M
UHG
3777
DELISTED
United Homes Group
UHG
– –
-180,800
Closed -$747K
UL icon
3778
Unilever
UL
$134B
– –
-15,502
Closed -$1.03M
UMH
3779
UMH Properties
UMH
$1.38B
– –
-437,000
Closed -$6.49M
USAS
3780
Americas Gold and Silver
USAS
$1.73B
– –
-295,215
Closed -$1.1M
USD icon
3781
ProShares Ultra Semiconductors
USD
$2.8B
– –
-31,800
Closed -$1.57M
USIG icon
3782
iShares Broad USD Investment Grade Corporate Bond ETF
USIG
$17.3B
– –
-14,500
Closed -$757K
AD
3783
Array Digital Infrastructure
AD
$3.01B
– –
-18,797
Closed -$940K
USMV icon
3784
iShares MSCI USA Min Vol Factor ETF
USMV
$24.4B
– –
-23,100
Closed -$2.2M
UUUU icon
3785
Energy Fuels
UUUU
$3.69B
– –
-2,154,804
Closed -$33.1M
VB icon
3786
Vanguard Morningstar Small-Cap ETF
VB
$82.8B
– –
-3,800
Closed -$966K
VBR icon
3787
Vanguard Morningstar Small-Cap Value ETF
VBR
$38B
– –
-2,800
Closed -$584K
VBTX
3788
DELISTED
Veritex Holdings
VBTX
– –
-15,423
Closed -$517K
VCYT icon
3789
Veracyte
VCYT
$3.73B
– –
-72,584
Closed -$2.49M
VIST icon
3790
Vista Energy
VIST
$7.33B
– –
-43,400
Closed -$1.49M
VLY icon
3791
Valley National Bancorp
VLY
$8.16B
– –
-1,381,409
Closed -$14.6M
VMEO
3792
DELISTED
Vimeo
VMEO
– –
-6,342,800
Closed -$49.2M
VNET
3793
VNET Group
VNET
$2.14B
– –
-308,769
Closed -$3.19M
VONG icon
3794
Vanguard Russell 1000 Growth ETF
VONG
$45.4B
– –
-57,200
Closed -$6.89M
VOOG icon
3795
Vanguard S&P 500 Growth ETF
VOOG
$27.1B
– –
-43,200
Closed -$3.14M
VOR icon
3796
Vor Biopharma
VOR
$1.28B
– –
-14,600
Closed -$711K
VOYA icon
3797
Voya Financial
VOYA
$8.9B
– –
-10,200
Closed -$763K
VRME icon
3798
VerifyMe
VRME
$9.44M
– –
-46,458
Closed -$41.2K
VRNA
3799
DELISTED
Verona Pharma
VRNA
– –
-615,900
Closed -$65.7M
VRRM icon
3800
Verra Mobility
VRRM
$726M
– –
-18,800
Closed -$464K
150 151
152
153 154

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Jim Simons's Q4 2025 Portfolio in Review

As of Q4 2025, Jim Simons held 3,923 positions worth $64.5B, down 15% from $75.8B the previous quarter. Its ten largest holdings account for 12% of the portfolio.

Jim Simons withdrew a net $10.1B in Q4 2025, closing 737 positions and reducing 1,682 holdings. Its most notable exit was Meta Platforms (Facebook), an estimated $354M position sold in full.

By sector, the portfolio is most concentrated in Technology at 21% of assets, down from 22% a quarter earlier, followed by Healthcare and Consumer Discretionary.

Against the trend, Jim Simons opened a new position in ServiceNow worth $204M.

  • Jim Simons's largest Q4 2025 buy was ServiceNow: 1,331,977 shares worth $204M.
  • Jim Simons added most to Costco in Q4 2025, an estimated $616M increase.
  • Jim Simons's biggest Q4 2025 reduction was NVIDIA, cutting an estimated $885M.
  • Jim Simons fully exited Meta Platforms (Facebook) in Q4 2025, selling an estimated $354M.
  • Jim Simons's ten largest holdings make up 12% of its $64.5B portfolio in Q4 2025.
  • Jim Simons opened 466 new positions and closed 737 in Q4 2025.
  • Jim Simons's portfolio value fell 15% quarter-over-quarter to $64.5B.

Based on Renaissance Technologies's 13F filing for Q4 2025, filed 12 Feb 2026.