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Ken Griffin

Ken Griffin Citadel Advisors

AUM $618B
1-Year Est. Return 30.34%
 

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
+30.34%
3 Year Est. Return
+94.87%
5 Year Est. Return
+105.94%
10 Year Est. Return
+434.06%
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
IPAY icon
13301
Amplify Mobile Payments ETF
IPAY
$187M
– –
-12,266
Closed -$700K
IPG
13302
CALL
DELISTED
Interpublic Group of Companies
IPG
– –
-27,700
Closed -$773K
IPG
13303
DELISTED
Interpublic Group of Companies
IPG
– –
-560,852
Closed -$15.7M
IPHA
13304
Innate Pharma
IPHA
$207M
– –
-20,042
Closed -$39.1K
IPO icon
13305
Renaissance IPO ETF
IPO
$166M
– –
-33,758
Closed -$1.6M
IPWR icon
13306
Ideal Power
IPWR
$79.6M
– –
-31,740
Closed -$160K
IRBT
13307
CALL
DELISTED
iRobot
IRBT
– –
-213,700
Closed -$767K
IRBT
13308
DELISTED
iRobot
IRBT
– –
-31,272
Closed -$112K
IRBT
13309
PUT
DELISTED
iRobot
IRBT
– –
-48,600
Closed -$174K
IRMD icon
13310
PUT
iRadimed
IRMD
$1.09B
– –
-5,300
Closed -$377K
IRON icon
13311
PUT
Disc Medicine
IRON
$3.03B
– –
-3,900
Closed -$258K
IRTC icon
13312
iRhythm Holdings
IRTC
$4.16B
– –
-8,892
Closed -$1.58M
ISCG icon
13313
iShares Morningstar Small-Cap Growth ETF
ISCG
$1.03B
– –
-18,277
Closed -$993K
ISTB icon
13314
CALL
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
– –
-13,100
Closed -$640K
ISTB icon
13315
PUT
iShares Core 1-5 Year USD Bond ETF
ISTB
$5.14B
– –
-16,000
Closed -$781K
ISTR icon
13316
Investar Holding Corp
ISTR
$427M
– –
-13,640
Closed -$317K
ITDG icon
13317
iShares LifePath Target Date 2055 ETF
ITDG
$59.3M
– –
-8,481
Closed -$315K
ITDC icon
13318
iShares LifePath Target Date 2035 ETF
ITDC
$112M
– –
-8,815
Closed -$299K
ITDI icon
13319
iShares LifePath Target Date 2065 ETF
ITDI
$28.8M
– –
-6,008
Closed -$223K
IUSB icon
13320
iShares Core Universal USD Bond ETF
IUSB
$43.3B
– –
-1,281,984
Closed -$59.9M
IUSV icon
13321
iShares Core S&P US Value ETF
IUSV
$28B
– –
-11,895
Closed -$1.21M
IUSG icon
13322
iShares Core S&P US Growth ETF
IUSG
$33.9B
– –
-20,896
Closed -$3.49M
IVOG icon
13323
Vanguard S&P Mid-Cap 400 Growth ETF
IVOG
$1.73B
– –
-15,961
Closed -$1.91M
IVLU icon
13324
iShares MSCI Intl Value Factor ETF
IVLU
$4.55B
– –
-36,789
Closed -$1.31M
IVOL icon
13325
CALL
Quadratic Interest Rate Volatility and Inflation Hedge ETF
IVOL
$272M
– –
-15,200
Closed -$293K
531 532
533
534 535

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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.