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 |
iShares Core S&P 500 ETF
IVV
|
+$2.72B |
| 2 |
Meta Platforms (Facebook)
META
|
+$660M |
| 3 |
Micron Technology
MU
|
+$605M |
| 4 |
Mastercard
MA
|
+$497M |
| 5 |
Tesla
TSLA
|
+$495M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$1.33B |
| 2 |
Visa
V
|
+$1.26B |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$1.23B |
| 4 |
Lam Research
LRCX
|
+$699M |
| 5 |
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$681M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 4.49% |
| 2 | Healthcare | 2.99% |
| 3 | Financials | 2.85% |
| 4 | Industrials | 2.56% |
| 5 | Consumer Discretionary | 2.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
4751
PagerDuty
PD
$915M
| $3.84M | ﹤0.01% |
617,915
+464,353
| +302% | +$4.02M |
|
4752
ArriVent BioPharma
AVBP
$1.38B
| $3.83M | ﹤0.01% |
166,157
-292,345
| -64% | -$6.6M |
|
4753
CALL
Nabors Industries
NBR
$1.39B
| $3.83M | ﹤0.01% |
44,500
+5,700
| +15% | +$414K |
|
4754
Metallus
MTUS
$907M
| $3.83M | ﹤0.01% |
+234,321
| New | +$4.3M |
|
|
AII
4755
American Integrity Insurance
AII
$467M
| $3.82M | ﹤0.01% |
198,385
-131,818
| -40% | -$2.51M |
|
4756
CALL
Primoris Services
PRIM
$4.38B
| $3.82M | ﹤0.01% |
26,700
-2,200
| -8% | -$322K |
|
4757
Direxion Daily Energy Bear 2X ETF
ERY
$35.3M
| $3.82M | ﹤0.01% |
371,432
+340,303
| +1,093% | +$4.77M |
|
4758
Compass Therapeutics
CMPX
$412M
| $3.82M | ﹤0.01% |
721,410
+615,728
| +583% | +$3.55M |
|
4759
PUT
Yum China
YUMC
$16.2B
| $3.81M | ﹤0.01% |
78,200
+28,500
| +57% | +$1.48M |
|
4760
CALL
iShares MSCI Global Metals & Mining Producers ETF
PICK
$2.29B
| $3.81M | ﹤0.01% |
67,400
+54,000
| +403% | +$3.14M |
|
4761
Atkore
ATKR
$3.17B
| $3.81M | ﹤0.01% |
64,743
-82,918
| -56% | -$5.39M |
|
4762
CALL
Vera Therapeutics
VERA
$2.19B
| $3.81M | ﹤0.01% |
94,800
+38,000
| +67% | +$1.64M |
|
4763
Travere Therapeutics
TVTX
$5.75B
| $3.81M | ﹤0.01% |
128,364
+108,029
| +531% | +$3.23M |
|
4764
PUT
Sempra
SRE
$56.9B
| $3.81M | ﹤0.01% |
39,200
-14,900
| -28% | -$1.36M |
|
4765
Invesco BulletShares 2027 Corporate Bond ETF
BSCR
$4.6B
| $3.81M | ﹤0.01% |
+194,045
| New | +$3.83M |
|
4766
Arbor Realty Trust
ABR
$966M
| $3.81M | ﹤0.01% |
493,652
+353,850
| +253% | +$2.76M |
|
4767
Dimensional International Value ETF
DFIV
$21.8B
| $3.8M | ﹤0.01% |
72,059
+7,606
| +12% | +$403K |
|
4768
CALL
Solventum
SOLV
$15B
| $3.8M | ﹤0.01% |
58,200
+30,900
| +113% | +$2.3M |
|
4769
CALL
Vanguard Morningstar Small-Cap ETF
VB
$83.6B
| $3.8M | ﹤0.01% |
14,500
-6,100
| -30% | -$1.65M |
|
|
TIGR
4770
CALL
UP Fintech Holding
TIGR
$826M
| $3.8M | ﹤0.01% |
602,600
-312,800
| -34% | -$2.55M |
|
4771
PUT
The GEO Group
GEO
$4.01B
| $3.8M | ﹤0.01% |
225,800
+67,500
| +43% | +$1.07M |
|
4772
State Street SPDR S&P Dividend ETF
SDY
$22.2B
| $3.8M | ﹤0.01% |
26,007
-3,538
| -12% | -$527K |
|
4773
Global X MSCI Argentina ETF
ARGT
$817M
| $3.79M | ﹤0.01% |
40,636
-45,711
| -53% | -$4.21M |
|
4774
CALL
Invesco
IVZ
$14.2B
| $3.79M | ﹤0.01% |
156,000
-452,100
| -74% | -$11.8M |
|
4775
PUT
C3.ai
AI
$1.56B
| $3.79M | ﹤0.01% |
449,900
-748,900
| -62% | -$8.03M |
|
Similar funds
Ken Griffin's Q1 2026 Portfolio in Review
As of Q1 2026, Ken Griffin held 14,860 positions worth $618B, down 7.1% from $666B the previous quarter. Its ten largest holdings account for 22% of the portfolio.
Ken Griffin withdrew a net $19.5B in Q1 2026, closing 2,003 positions and reducing 5,286 holdings. Its most notable exit was CyberArk, an estimated $305M position sold in full.
By sector, the portfolio is most concentrated in Technology at 4.5% of assets, down from 4.9% a quarter earlier, followed by Healthcare and Financials.
Against the trend, Ken Griffin opened a new position in iShares 7-10 Year Treasury Bond ETF worth $327M.
- Ken Griffin's largest Q1 2026 buy was iShares 7-10 Year Treasury Bond ETF: 3,431,225 shares worth $327M.
- Ken Griffin added most to iShares Core S&P 500 ETF in Q1 2026, an estimated $2.72B increase.
- Ken Griffin's biggest Q1 2026 reduction was Amazon, cutting an estimated $1.33B.
- Ken Griffin fully exited CyberArk in Q1 2026, selling an estimated $305M.
- Ken Griffin's ten largest holdings make up 22% of its $618B portfolio in Q1 2026.
- Ken Griffin opened 2,347 new positions and closed 2,003 in Q1 2026.
- Ken Griffin's portfolio value fell 7.1% quarter-over-quarter to $618B.
Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.