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Jim Simons

Jim Simons Renaissance Technologies

AUM $72.6B
1-Year Est. Return 54.88%
 

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
+54.88%
3 Year Est. Return
+169.34%
5 Year Est. Return
+186.18%
10 Year Est. Return
+887.93%
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 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
DFAT icon
3101
Dimensional US Targeted Value ETF
DFAT
$14.8B
$227K ﹤0.01%
3,900
-18,900
-83% -$1.08M
GRO
3102
Brazil Potash Corp
GRO
$132M
$227K ﹤0.01%
84,325
+50,025
+146% +$95.8K
EBON icon
3103
Ebang International Holdings
EBON
$12.2M
$226K ﹤0.01%
50,113
+900
+2% +$3.87K
MCBS icon
3104
MetroCity Bankshares
MCBS
$1.05B
$224K ﹤0.01%
8,094
-10,155
-56% -$295K
ASPSZ
3105
Altisource Portfolio Solutions SA Cash Exercise Stakeholder Warrants
ASPSZ
$7.05M
$224K ﹤0.01%
386,322
-31,200
-7% -$22.9K
AHG
3106
Akso Health Group
AHG
$1.11B
$224K ﹤0.01%
129,198
-1,600
-1% -$2.76K
GANX icon
3107
Gain Therapeutics
GANX
$92.6M
$223K ﹤0.01%
126,100
+32,100
+34% +$54.1K
BCI icon
3108
abrdn Bloomberg All Commodity Strategy K-1 Free ETF
BCI
$3.07B
$222K ﹤0.01%
10,300
-49,000
-83% -$1.03M
SIFY
3109
Sify Technologies
SIFY
$1.15B
$221K ﹤0.01%
+16,200
New +$137K
PBBK
3110
DELISTED
PB Bankshares
PBBK
$221K ﹤0.01%
+11,500
New +$217K
RJET
3111
Republic Airways Holdings
RJET
$964M
$218K ﹤0.01%
11,186
+4,506
+67% +$79.6K
CALC icon
3112
CalciMedica
CALC
$20.2M
$215K ﹤0.01%
70,000
+34,000
+94% +$97.8K
HIFS icon
3113
Hingham Institution for Saving
HIFS
$686M
$215K ﹤0.01%
816
-6,373
-89% -$1.7M
LONA
3114
LeonaBio Inc
LONA
$73.9M
$215K ﹤0.01%
51,924
+27,824
+115% +$109K
FMFC
3115
Kandal M Venture Ltd
FMFC
$4.32M
$215K ﹤0.01%
+14,600
New +$131K
BKV
3116
BKV Corp
BKV
$2.84B
$213K ﹤0.01%
9,200
-30,600
-77% -$667K
DRUG
3117
Bright Minds Biosciences
DRUG
$765M
$212K ﹤0.01%
+3,500
New +$136K
CRGO icon
3118
Freightos
CRGO
$68.2M
$211K ﹤0.01%
63,900
+18,000
+39% +$53.9K
CRDF icon
3119
Cardiff Oncology
CRDF
$76.6M
$210K ﹤0.01%
101,800
-27,890
-22% -$77.1K
XOM icon
3120
ExxonMobil
XOM
$652B
$209K ﹤0.01%
1,865
-495,117
-100% -$55M
AWX icon
3121
Avalon Holdings
AWX
$10.9M
$209K ﹤0.01%
80,210
-3,775
-4% -$9.53K
SSKN
3122
DELISTED
Strata Skin Sciences
SSKN
$209K ﹤0.01%
101,530
+3,500
+4% +$6.94K
XENE icon
3123
Xenon Pharmaceuticals
XENE
$6.21B
$209K ﹤0.01%
5,200
-3,400
-40% -$120K
LNKB
3124
DELISTED
LINKBANCORP
LNKB
$208K ﹤0.01%
29,200
+10,800
+59% +$78.3K
BLTE
3125
Belite Bio
BLTE
$6.67B
$208K ﹤0.01%
2,812
-1,488
-35% -$97.7K

Similar funds

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.