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Ken Griffin

Ken Griffin Citadel Advisors

AUM $875B
1-Year Est. Return 40.91%
 

Ken Griffin founded Citadel, one of the world’s largest and most successful hedge funds. Starting his trading career from his Harvard dorm room at a young age, Griffin quickly developed a keen sense for markets and built Citadel into a global powerhouse with billions in assets under management. Known for his quantitative and technology-driven strategies, Griffin has also made headlines for significant philanthropic contributions, supporting causes in education, the arts, and public institutions. Over the years, he has earned recognition as one of the preeminent figures in modern finance.

This Fund
S&P 500
This Quarter Est. Return
+5.22%
1 Year Est. Return
+40.91%
3 Year Est. Return
+115.85%
5 Year Est. Return
+132.1%
10 Year Est. Return
+518.81%
AUM
$666B
AUM Growth
+$8.72B
Cap. Flow
+$1.57B
Cap. Flow %
0.24%
Top 10 Hldgs %
22.76%
Holding
14,701
New
2,078
Increased
5,000
Reduced
5,362
Closed
2,191

Top Buys

Rank Stock Value
1
AMZN icon
Amazon
AMZN
+$2.49B
2
NVDA icon
NVIDIA
NVDA
+$2.19B
3
DIA icon
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
+$1.94B
4
TSM icon
TSMC
TSM
+$728M
5
UNH icon
UnitedHealth
UNH
+$705M

Top Sells

Rank Stock Value
1
META icon
Meta Platforms (Facebook)
META
+$775M
2
ABBV icon
AbbVie
ABBV
+$540M
3
DAL icon
Delta Air Lines
DAL
+$434M
4
LLY icon
Eli Lilly
LLY
+$433M
5
DXCM icon
DexCom
DXCM
+$433M

Sector Composition

Rank Sector Weight
1 Technology 4.89%
2 Healthcare 2.92%
3 Financials 2.71%
4 Consumer Discretionary 2.52%
5 Industrials 2.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ACIW icon
12476
PUT
ACI Worldwide
ACIW
$5.4B
– –
-4,500
Closed -$237K
ACP
12477
abrdn Income Credit Strategies Fund
ACP
$645M
– –
-29,893
Closed -$173K
ACWI icon
12478
iShares MSCI ACWI ETF
ACWI
$33.6B
– –
-162,097
Closed -$22.7M
ADAP
12479
CALL
DELISTED
Adaptimmune Therapeutics
ADAP
– –
-137,700
Closed -$17.9K
ADAP
12480
PUT
DELISTED
Adaptimmune Therapeutics
ADAP
– –
-143,500
Closed -$18.7K
ADCT icon
12481
PUT
ADC Therapeutics
ADCT
$128M
– –
-19,600
Closed -$78.4K
ADFI
12482
DELISTED
Anfield Dynamic Fixed Income ETF
ADFI
– –
-12,818
Closed -$110K
ADIV icon
12483
Guinness Atkinson Asia Pacific Dividend Builder ETF
ADIV
$55.2M
– –
-11,835
Closed -$214K
ADNT icon
12484
PUT
Adient
ADNT
$1.57B
– –
-48,600
Closed -$1.17M
ADNWW
12485
DELISTED
Advent Technologies Holdings Warrant
ADNWW
– –
-12,071
Closed -$168
ADSE icon
12486
CALL
ADS-TEC Energy
ADSE
$878M
– –
-23,600
Closed -$283K
ADT icon
12487
CALL
ADT
ADT
$5.47B
– –
-1,727,900
Closed -$15.1M
ADUS icon
12488
PUT
Addus HomeCare
ADUS
$2.17B
– –
-1,900
Closed -$224K
ADV icon
12489
Advantage Solutions
ADV
$420M
– –
-15,479
Closed -$447K
ADVM
12490
CALL
DELISTED
Adverum Biotechnologies
ADVM
– –
-24,100
Closed -$109K
ADVM
12491
DELISTED
Adverum Biotechnologies
ADVM
– –
-17,267
Closed -$78.2K
AEHL icon
12492
Antelope Enterprise Holdings
AEHL
$5.6M
– –
-109
Closed -$38.2K
AEIS icon
12493
Advanced Energy
AEIS
$13.2B
– –
-4,028
Closed -$820K
AEMD icon
12494
Aethlon Medical
AEMD
$1.49M
– –
-1,902
Closed -$71.2K
AEYE icon
12495
PUT
AudioEye
AEYE
$99.8M
– –
-22,800
Closed -$316K
AFSM icon
12496
First Trust Active Factor Small Cap ETF
AFSM
$125M
– –
-43,360
Closed -$1.42M
AFYA icon
12497
Afya
AFYA
$1.27B
– –
-105,514
Closed -$1.65M
AGGH icon
12498
Simplify Aggregate Bond ETF
AGGH
$605M
– –
-24,060
Closed -$498K
AHRT
12499
CALL
AH Realty Trust
AHRT
$506M
– –
-57,600
Closed -$404K
AHT
12500
Ashford Hospitality Trust
AHT
$20.8M
– –
-26,541
Closed -$157K
498 499
500
501 502

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Ken Griffin's Q4 2025 Portfolio in Review

As of Q4 2025, Ken Griffin held 14,701 positions worth $666B, up 1.3% from $657B the previous quarter. Its ten largest holdings account for 23% of the portfolio.

Ken Griffin's Q4 2025 filing shows 2,078 new, 5,000 increased, 5,362 reduced and 2,191 closed positions. Its largest new stake was Medline Inc: 6,006,339 shares worth $252M. The largest sale was Meta Platforms (Facebook), an estimated $775M.

By sector, the portfolio is most concentrated in Technology at 4.9% of assets, up from 3.8% a quarter earlier, followed by Healthcare and Financials.

  • Ken Griffin's largest Q4 2025 buy was Medline Inc: 6,006,339 shares worth $252M.
  • Ken Griffin added most to Amazon in Q4 2025, an estimated $2.49B increase.
  • Ken Griffin's biggest Q4 2025 reduction was Meta Platforms (Facebook), cutting an estimated $775M.
  • Ken Griffin fully exited WEX in Q4 2025, selling an estimated $131M.
  • Ken Griffin's ten largest holdings make up 23% of its $666B portfolio in Q4 2025.
  • Ken Griffin opened 2,078 new positions and closed 2,191 in Q4 2025.
  • Ken Griffin's portfolio value rose 1.3% quarter-over-quarter to $666B.

Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.