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 | |
|---|---|---|---|---|---|---|
926
CALL
Workday
WDAY
$51B
| $91M | 0.01% |
423,800
-4,500
| -1% | -$1.02M |
|
927
Jefferies Financial Group
JEF
$12.9B
| $91M | 0.01% |
1,468,373
+1,179,386
| +408% | +$67.6M |
|
928
Corpay
CPAY
$27.9B
| $90.7M | 0.01% |
301,344
+275,003
| +1,044% | +$79.8M |
|
929
CALL
Valero Energy
VLO
$98.7B
| $90.4M | 0.01% |
555,600
+53,500
| +11% | +$9.06M |
|
930
PUT
TeraWulf
WULF
$8.14B
| $90.1M | 0.01% |
7,842,000
+2,432,800
| +45% | +$32.6M |
|
931
Independence Realty Trust
IRT
$4.01B
| $89.5M | 0.01% |
5,117,405
+1,644,365
| +47% | +$27.3M |
|
932
CALL
D-Wave Quantum Inc. Common Stock
QBTS
$7.78B
| $89.3M | 0.01% |
3,416,000
-310,400
| -8% | -$9.04M |
|
933
Atmos Energy
ATO
$28.7B
| $89.2M | 0.01% |
531,849
+381,226
| +253% | +$65.9M |
|
934
BP
BP
$110B
| $89M | 0.01% |
2,562,882
-4,444,917
| -63% | -$156M |
|
935
iShares MSCI Japan ETF
EWJ
$23.2B
| $88.7M | 0.01% |
1,097,973
+387,344
| +55% | +$31.8M |
|
936
CALL
Marathon Digital Holdings
MARA
$3.56B
| $88.6M | 0.01% |
9,868,400
-4,382,700
| -31% | -$64.7M |
|
937
RPM International
RPM
$14.5B
| $88.3M | 0.01% |
849,446
-695,687
| -45% | -$75.3M |
|
938
Terex
TEX
$7.57B
| $88.3M | 0.01% |
1,654,836
+1,615,007
| +4,055% | +$81.6M |
|
939
Procore
PCOR
$9.45B
| $88.2M | 0.01% |
1,212,001
-630,709
| -34% | -$46.6M |
|
940
Williams Companies
WMB
$89.3B
| $88.1M | 0.01% |
1,465,784
-497,359
| -25% | -$30.1M |
|
941
CALL
Teradyne
TER
$64.2B
| $88.1M | 0.01% |
455,000
+162,200
| +55% | +$27.8M |
|
942
PTC Therapeutics
PTCT
$6.01B
| $87.7M | 0.01% |
1,154,455
-576,570
| -33% | -$41.9M |
|
|
943
TeraWulf
WULF
$8.14B
| $87.6M | 0.01% |
7,621,915
+4,546,044
| +148% | +$60.9M |
|
944
Yeti Holdings
YETI
$3.44B
| $87.5M | 0.01% |
1,981,817
+1,795,617
| +964% | +$69.1M |
|
945
CALL
iShares 7-10 Year Treasury Bond ETF
IEF
$47.3B
| $87.5M | 0.01% |
909,900
+609,100
| +202% | +$58.9M |
|
946
Fortinet
FTNT
$121B
| $87.5M | 0.01% |
1,101,413
+82,643
| +8% | +$6.85M |
|
947
CALL
Nice
NICE
$6.17B
| $87.3M | 0.01% |
772,600
+496,700
| +180% | +$60M |
|
948
ICICI Bank
IBN
$106B
| $87M | 0.01% |
2,920,105
+2,544,430
| +677% | +$78.1M |
|
949
PUT
Coherent
COHR
$64B
| $86.9M | 0.01% |
471,000
-87,900
| -16% | -$13.1M |
|
950
PUT
Constellation Brands
STZ
$23.3B
| $86.8M | 0.01% |
629,100
-331,500
| -35% | -$45.5M |
|
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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.