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 |
NVIDIA
NVDA
|
+$820M |
| 2 |
Microsoft
MSFT
|
+$811M |
| 3 |
McDonald's
MCD
|
+$804M |
| 4 |
Coca-Cola
KO
|
+$655M |
| 5 |
Amazon
AMZN
|
+$646M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SCHW
Charles Schwab
SCHW
|
+$1.64B |
| 2 |
Invesco QQQ Trust
QQQ
|
+$1.1B |
| 3 |
Strategy Inc
MSTR
|
+$564M |
| 4 |
Kroger
KR
|
+$558M |
| 5 |
Danaher
DHR
|
+$494M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 3.33% |
| 2 | Healthcare | 3.23% |
| 3 | Consumer Discretionary | 2.55% |
| 4 | Financials | 2.55% |
| 5 | Industrials | 1.94% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5776
FormFactor
FORM
$10.8B
| $1.87M | ﹤0.01% |
+54,294
| New | +$1.65M |
|
5777
Bumble
BMBL
$343M
| $1.87M | ﹤0.01% |
283,478
-2,006,477
| -88% | -$10.1M |
|
5778
Alphatec Holdings
ATEC
$1.46B
| $1.87M | ﹤0.01% |
168,153
-390,916
| -70% | -$4.49M |
|
5779
CALL
Palomar
PLMR
$3.26B
| $1.87M | ﹤0.01% |
12,100
+3,900
| +48% | +$604K |
|
|
NFBK
5780
DELISTED
Northfield Bancorp
NFBK
| $1.87M | ﹤0.01% |
162,475
-92,867
| -36% | -$1.03M |
|
5781
PUT
Ardelyx
ARDX
$1.05B
| $1.86M | ﹤0.01% |
475,600
+27,500
| +6% | +$113K |
|
|
PPLI
5782
CALL
People Inc
PPLI
$2.94B
| $1.86M | ﹤0.01% |
49,900
-53,959
| -52% | -$1.95M |
|
|
SAIL
5783
CALL
SailPoint Inc
SAIL
$10.5B
| $1.86M | ﹤0.01% |
81,500
+73,900
| +972% | +$1.4M |
|
5784
WisdomTree Yield Enhanced US Short-Term Aggregate Bond Fund
SHAG
$47.3M
| $1.86M | ﹤0.01% |
38,878
+930
| +2% | +$44.3K |
|
5785
WisdomTree US Total Dividend Fund
DTD
$1.68B
| $1.86M | ﹤0.01% |
23,396
-20,728
| -47% | -$1.57M |
|
5786
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$597M
| $1.86M | ﹤0.01% |
28,531
+9,333
| +49% | +$527K |
|
|
SII
5787
PUT
Sprott
SII
$3.14B
| $1.86M | ﹤0.01% |
26,900
-800
| -3% | -$44.5K |
|
5788
PUT
iShares Russell 2000 Growth ETF
IWO
$15.1B
| $1.86M | ﹤0.01% |
6,500
-100
| -2% | -$26.3K |
|
5789
Fidelity Small-Mid Multifactor ETF
FSMD
$2.64B
| $1.86M | ﹤0.01% |
+44,789
| New | +$1.77M |
|
|
MRUS
5790
PUT
DELISTED
Merus
MRUS
| $1.86M | ﹤0.01% |
35,300
+25,600
| +264% | +$1.2M |
|
5791
PUT
Silicon Laboratories
SLAB
$7.32B
| $1.86M | ﹤0.01% |
12,600
+4,300
| +52% | +$509K |
|
5792
Main Sector Rotation ETF
SECT
$2.9B
| $1.86M | ﹤0.01% |
31,964
+23,954
| +299% | +$1.27M |
|
5793
PUT
ManpowerGroup
MAN
$2.64B
| $1.85M | ﹤0.01% |
45,900
+25,000
| +120% | +$1.09M |
|
5794
Vericel Corp
VCEL
$2.23B
| $1.85M | ﹤0.01% |
43,568
+41,972
| +2,630% | +$1.75M |
|
5795
PUT
Mercury Systems
MRCY
$6.81B
| $1.85M | ﹤0.01% |
34,400
-11,000
| -24% | -$536K |
|
|
SRDX
5796
DELISTED
Surmodics
SRDX
| $1.85M | ﹤0.01% |
62,353
-6,982
| -10% | -$201K |
|
5797
PUT
Vitesse Energy
VTS
$700M
| $1.85M | ﹤0.01% |
83,800
+21,100
| +34% | +$462K |
|
5798
PUT
McEwen Inc
MUX
$1.16B
| $1.85M | ﹤0.01% |
192,500
+33,600
| +21% | +$274K |
|
5799
Toro Company
TTC
$9.28B
| $1.85M | ﹤0.01% |
26,169
-147,937
| -85% | -$10.5M |
|
5800
CALL
Lightspeed Commerce
LSPD
$1.32B
| $1.85M | ﹤0.01% |
157,900
-24,200
| -13% | -$249K |
|
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Ken Griffin's Q2 2025 Portfolio in Review
As of Q2 2025, Ken Griffin held 15,819 positions worth $576B, up 9.2% from $527B the previous quarter. Its ten largest holdings account for 27% of the portfolio.
Ken Griffin withdrew a net $29.1B in Q2 2025, closing 3,524 positions and reducing 5,141 holdings. Its most notable exit was Kroger, an estimated $558M position sold in full.
By sector, the portfolio is most concentrated in Technology at 3.3% of assets, up from 2.9% a quarter earlier, followed by Healthcare and Consumer Discretionary.
Against the trend, Ken Griffin opened a new position in Walmart Inc worth $401M.
- Ken Griffin's largest Q2 2025 buy was Walmart Inc: 4,099,492 shares worth $401M.
- Ken Griffin added most to NVIDIA in Q2 2025, an estimated $820M increase.
- Ken Griffin's biggest Q2 2025 reduction was Charles Schwab, cutting an estimated $1.64B.
- Ken Griffin fully exited Kroger in Q2 2025, selling an estimated $558M.
- Ken Griffin's ten largest holdings make up 27% of its $576B portfolio in Q2 2025.
- Ken Griffin opened 1,459 new positions and closed 3,524 in Q2 2025.
- Ken Griffin's portfolio value rose 9.2% quarter-over-quarter to $576B.
Based on Citadel Advisors's 13F filing for Q2 2025, filed 14 Aug 2025.