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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

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
HUBG icon
2776
HUB Group
HUBG
$2.54B
$289K ﹤0.01%
6,772
-22,400
-77% -$852K
NGNE icon
2777
Neurogene
NGNE
$733M
$288K ﹤0.01%
+14,000
New +$348K
NEBX
2778
Tradr 2X Long NBIS Daily ETF
NEBX
$352M
$288K ﹤0.01%
+30,600
New +$518K
BNT
2779
Brookfield Wealth Solutions
BNT
$12.2B
$287K ﹤0.01%
6,249
-9,209
-60% -$420K
OKYO
2780
OKYO Pharma
OKYO
$79.2M
$286K ﹤0.01%
138,000
+96,800
+235% +$210K
GTIM icon
2781
Good Times Restaurants
GTIM
$16.6M
$283K ﹤0.01%
234,048
-34,235
-13% -$47.9K
GRO
2782
Brazil Potash Corp
GRO
$133M
$283K ﹤0.01%
149,600
+65,275
+77% +$148K
CGMS icon
2783
Capital Group US Multi-Sector Income ETF
CGMS
$5.43B
$282K ﹤0.01%
10,206
-178,449
-95% -$4.95M
FSEA icon
2784
First Seacoast Bancorp
FSEA
$80.7M
$282K ﹤0.01%
21,332
+400
+2% +$4.79K
KYNB
2785
Kyntra Bio
KYNB
$28.7M
$278K ﹤0.01%
31,681
+2,400
+8% +$23.5K
ACCS
2786
ACCESS Newswire
ACCS
$19M
$277K ﹤0.01%
29,838
-2,100
-7% -$19.2K
GETY icon
2787
Getty Images
GETY
$133M
$277K ﹤0.01%
+206,835
New +$356K
WSBK
2788
Winchester Bancorp
WSBK
$117M
$277K ﹤0.01%
+26,502
New +$258K
NMG
2789
Nouveau Monde Graphite
NMG
$481M
$277K ﹤0.01%
111,500
+100,200
+887% +$293K
LEN.B icon
2790
Lennar Class B
LEN.B
$20.7B
$276K ﹤0.01%
2,900
-10,700
-79% -$1.21M
ESGD icon
2791
iShares ESG Aware MSCI EAFE ETF
ESGD
$12.3B
$276K ﹤0.01%
+2,900
New +$273K
KTCC icon
2792
Key Tronic
KTCC
$41.3M
$275K ﹤0.01%
98,600
-3,300
-3% -$9.65K
MLAB icon
2793
Mesa Laboratories
MLAB
$640M
$275K ﹤0.01%
3,500
-7,400
-68% -$563K
NBR icon
2794
Nabors Industries
NBR
$1.33B
$272K ﹤0.01%
5,000
-8,600
-63% -$419K
SCOR icon
2795
Comscore
SCOR
$90M
$271K ﹤0.01%
41,721
-1,600
-4% -$11.5K
APLT
2796
DELISTED
Applied Therapeutics
APLT
$271K ﹤0.01%
+2,706,156
New +$1.72M
SFBC
2797
Sound Financial Bancorp
SFBC
$116M
$271K ﹤0.01%
+6,200
New +$277K
LITB
2798
LightInTheBox
LITB
$56.7M
$270K ﹤0.01%
120,433
-6,900
-5% -$16.1K
QUBX
2799
Tradr 2X Long QUBT Daily ETF
QUBX
$28.5M
$269K ﹤0.01%
+12,300
New +$702K
PBBK
2800
DELISTED
PB Bankshares
PBBK
$269K ﹤0.01%
12,700
+1,200
+10% +$24.7K

Similar funds

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.