Ken Griffin Citadel Advisors
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$2.49B |
| 2 |
NVIDIA
NVDA
|
+$2.19B |
| 3 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$1.94B |
| 4 |
TSMC
TSM
|
+$728M |
| 5 |
UnitedHealth
UNH
|
+$705M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Meta Platforms (Facebook)
META
|
+$775M |
| 2 |
AbbVie
ABBV
|
+$540M |
| 3 |
Delta Air Lines
DAL
|
+$434M |
| 4 |
Eli Lilly
LLY
|
+$433M |
| 5 |
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 | |
|---|---|---|---|---|---|---|
2001
PUT
Owens Corning
OC
$12.2B
| $27.1M | ﹤0.01% |
241,900
+196,100
| +428% | +$23M |
|
2002
CALL
Comfort Systems
FIX
$62.4B
| $27.1M | ﹤0.01% |
29,000
-8,700
| -23% | -$8.03M |
|
|
ABVX
2003
PUT
Abivax
ABVX
$10.4B
| $27M | ﹤0.01% |
200,500
+190,600
| +1,925% | +$20.8M |
|
2004
PUT
ProShares Short S&P500
SH
$841M
| $27M | ﹤0.01% |
748,800
+32,000
| +4% | +$1.17M |
|
2005
CALL
PPG Industries
PPG
$25.4B
| $26.9M | ﹤0.01% |
262,800
+84,700
| +48% | +$8.51M |
|
2006
CALL
iShares Biotechnology ETF
IBB
$9.73B
| $26.9M | ﹤0.01% |
159,500
-22,400
| -12% | -$3.64M |
|
2007
Sunstone Hotel Investors
SHO
$2.03B
| $26.9M | ﹤0.01% |
3,010,692
-308,746
| -9% | -$2.83M |
|
2008
PUT
Vail Resorts
MTN
$5.28B
| $26.9M | ﹤0.01% |
202,500
+131,300
| +184% | +$19.3M |
|
2009
PUT
Brinker International
EAT
$10.2B
| $26.8M | ﹤0.01% |
186,900
+26,400
| +16% | +$3.46M |
|
|
LGN
2010
Legence Corp
LGN
$5.1B
| $26.8M | ﹤0.01% |
622,802
+522,802
| +523% | +$20.7M |
|
2011
State Street Energy Select Sector SPDR ETF
XLE
$40.5B
| $26.8M | ﹤0.01% |
599,005
+190,253
| +47% | +$8.47M |
|
2012
T. Rowe Price
TROW
$23.6B
| $26.8M | ﹤0.01% |
261,548
-1,158,154
| -82% | -$120M |
|
2013
CALL
Shake Shack
SHAK
$3.02B
| $26.7M | ﹤0.01% |
329,500
-99,200
| -23% | -$8.75M |
|
2014
PUT
GE HealthCare
GEHC
$33.3B
| $26.7M | ﹤0.01% |
325,500
-2,900
| -0.9% | -$226K |
|
2015
Ingersoll Rand
IR
$32.3B
| $26.6M | ﹤0.01% |
336,051
+200,839
| +149% | +$15.9M |
|
2016
CALL
Intercontinental Exchange
ICE
$86.9B
| $26.6M | ﹤0.01% |
164,300
-33,600
| -17% | -$5.26M |
|
2017
CALL
ProShares Ultra S&P500
SSO
$8.47B
| $26.6M | ﹤0.01% |
458,500
-376,900
| -45% | -$21.6M |
|
2018
Avis
CAR
$4.87B
| $26.6M | ﹤0.01% |
206,924
+50,395
| +32% | +$7.03M |
|
|
AL
2019
DELISTED
Air Lease Corp
AL
| $26.5M | ﹤0.01% |
413,028
+292,193
| +242% | +$18.7M |
|
2020
CALL
Burlington
BURL
$21.9B
| $26.5M | ﹤0.01% |
91,800
-54,100
| -37% | -$14.7M |
|
2021
CALL
Sysco
SYY
$39.7B
| $26.5M | ﹤0.01% |
359,600
+66,000
| +22% | +$5.02M |
|
2022
Floor & Decor
FND
$6.24B
| $26.5M | ﹤0.01% |
435,123
+222,361
| +105% | +$14.4M |
|
2023
CALL
HP
HPQ
$27.5B
| $26.5M | ﹤0.01% |
1,188,500
-712,500
| -37% | -$18.2M |
|
2024
CALL
Ares Management
ARES
$32.5B
| $26.4M | ﹤0.01% |
163,200
+71,400
| +78% | +$11.1M |
|
2025
CALL
Fabrinet
FN
$20.4B
| $26.3M | ﹤0.01% |
57,800
+3,600
| +7% | +$1.57M |
|
Similar funds
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.