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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
VNRX icon
3176
VolitionRx Ltd
VNRX
$8.05M
$6.47K ﹤0.01%
1,265
-2,635
-68% -$20K
HTCR icon
3177
HeartCore Enterprises
HTCR
$3.88M
$6.35K ﹤0.01%
+1,040
New +$12.7K
PWCM
3178
PowerCompute, Inc. Common Stock
PWCM
$1.42M
$6.31K ﹤0.01%
569
-8,839
-94% -$211K
PMNT
3179
DELISTED
PERFECT MOMENT LTD
PMNT
$5.47K ﹤0.01%
+13,144
New +$6.16K
TIRX
3180
DELISTED
Tian Ruixiang Holdings
TIRX
$4.55K ﹤0.01%
+12,600
New +$12K
MWG icon
3181
Multi Ways Holdings
MWG
$6.53M
$4.39K ﹤0.01%
1,650
+70
+4% +$191
HCAI
3182
Huachen AI Parking Management Technology
HCAI
$5.57M
$4.02K ﹤0.01%
+383
New +$5.51K
HCWC
3183
Healthy Choice Wellness
HCWC
$7.75M
$3.79K ﹤0.01%
15,100
-115,061
-88% -$64.1K
FCHL
3184
Fitness Champs Holdings
FCHL
$1.56M
$2.95K ﹤0.01%
+28
New +$5K
AA icon
3185
Alcoa
AA
$13.5B
– –
-81,296
Closed -$2.67M
AAPD icon
3186
Direxion Daily AAPL Bear 1X ETF
AAPD
$62.9M
– –
-43,400
Closed -$608K
AAPL icon
3187
Apple
AAPL
$4.41T
– –
-3,125
Closed -$798K
ABBV icon
3188
AbbVie
ABBV
$440B
– –
-928,071
Closed -$215M
ACA icon
3189
Arcosa
ACA
$7.12B
– –
-44,100
Closed -$4.13M
ACDC icon
3190
ProFrac Holding
ACDC
$936M
– –
-497,200
Closed -$1.84M
ACGL icon
3191
Arch Capital
ACGL
$33.2B
– –
-136,100
Closed -$12.3M
ACI icon
3192
Albertsons Companies
ACI
$5.83B
– –
-1,027,080
Closed -$18M
ACN icon
3193
Accenture
ACN
$110B
– –
-819,367
Closed -$202M
ACR
3194
ACRES Commercial Realty
ACR
$101M
– –
-17,794
Closed -$377K
ADAP
3195
DELISTED
Adaptimmune Therapeutics
ADAP
– –
-4,054,089
Closed -$527K
ADPT icon
3196
Adaptive Biotechnologies
ADPT
$4.02B
– –
-279,700
Closed -$4.18M
ADVM
3197
DELISTED
Adverum Biotechnologies
ADVM
– –
-363,496
Closed -$1.65M
AEM icon
3198
Agnico Eagle Mines
AEM
$93.8B
– –
-67,000
Closed -$11.3M
AEMD icon
3199
Aethlon Medical
AEMD
$1.6M
– –
-920
Closed -$34.4K
AEVA
3200
Aeva Technologies
AEVA
$1.75B
– –
-46,800
Closed -$679K
126 127
128
129 130

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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.