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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
CARM
3276
DELISTED
Carisma Therapeutics
CARM
– –
-293,686
Closed -$80.5K
CARV
3277
DELISTED
Carver Bancorp
CARV
– –
-68,600
Closed -$165K
CAVA icon
3278
CAVA Group
CAVA
$8.09B
– –
-320,250
Closed -$19.3M
CBRL icon
3279
Cracker Barrel
CBRL
$1.31B
– –
-55,632
Closed -$2.45M
CCC
3280
CCC Intelligent Solutions
CCC
$4.11B
– –
-17,300
Closed -$158K
CCEL icon
3281
Cryo-Cell International
CCEL
$31.3M
– –
-10,184
Closed -$47.3K
CCRD
3282
DELISTED
CoreCard
CCRD
– –
-206,997
Closed -$5.57M
CDRO icon
3283
Codere Online
CDRO
$411M
– –
-39,700
Closed -$274K
CELC icon
3284
Celcuity
CELC
$4.49B
– –
-194,800
Closed -$9.62M
CELU icon
3285
Celularity
CELU
$20M
– –
-42,000
Closed -$86.9K
CFLT
3286
DELISTED
Confluent
CFLT
– –
-32,400
Closed -$642K
CGCB icon
3287
Capital Group Core Bond ETF
CGCB
$5.77B
– –
-12,700
Closed -$338K
CGCP icon
3288
Capital Group Core Plus Income ETF
CGCP
$8.5B
– –
-57,400
Closed -$1.3M
CHDN icon
3289
Churchill Downs
CHDN
$6.17B
– –
-48,450
Closed -$4.7M
CHCT
3290
Community Healthcare Trust
CHCT
$430M
– –
-173,500
Closed -$2.65M
CHEF icon
3291
Chefs' Warehouse
CHEF
$4.53B
– –
-88,771
Closed -$5.18M
CIO
3292
DELISTED
City Office REIT
CIO
– –
-480,115
Closed -$3.34M
CLH icon
3293
Clean Harbors
CLH
$16.7B
– –
-11,302
Closed -$2.62M
CLNN icon
3294
Clene
CLNN
$52M
– –
-30,440
Closed -$183K
CLRB icon
3295
Cellectar Biosciences
CLRB
$20.8M
– –
-24,900
Closed -$139K
CLSD
3296
DELISTED
Clearside Biomedical
CLSD
– –
-25,247
Closed -$100K
CMI icon
3297
Cummins
CMI
$87.8B
– –
-52,200
Closed -$22M
CMPR icon
3298
Cimpress
CMPR
$2.4B
– –
-10,000
Closed -$630K
CMPX icon
3299
Compass Therapeutics
CMPX
$427M
– –
-79,000
Closed -$277K
CNQ icon
3300
Canadian Natural Resources
CNQ
$98.1B
– –
-188,700
Closed -$6.03M
130 131
132
133 134

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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.