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 | |
|---|---|---|---|---|---|---|
1651
CALL
Lemonade
LMND
$4.1B
| $36.2M | 0.01% |
577,300
-278,200
| -33% | -$19.3M |
|
1652
PUT
Pinterest
PINS
$13.2B
| $36M | 0.01% |
1,964,400
+401,100
| +26% | +$8.37M |
|
1653
Canadian Pacific Kansas City
CP
$82.6B
| $36M | 0.01% |
457,648
-240,343
| -34% | -$19M |
|
1654
CALL
Motorola Solutions
MSI
$77.7B
| $36M | 0.01% |
82,900
+27,000
| +48% | +$11.7M |
|
1655
Riot Platforms
RIOT
$7.21B
| $36M | 0.01% |
2,908,767
+1,290,788
| +80% | +$19.8M |
|
1656
CALL
Prologis
PLD
$134B
| $35.9M | 0.01% |
271,700
-101,800
| -27% | -$13.6M |
|
|
NOVTU
1657
Novanta Inc Units
NOVTU
$768M
| $35.9M | 0.01% |
670,000
+50,000
| +8% | +$2.91M |
|
1658
CALL
iShares Russell 1000 Growth ETF
IWF
$129B
| $35.8M | 0.01% |
336,000
-94,800
| -22% | -$10.8M |
|
1659
Tractor Supply
TSCO
$18.8B
| $35.8M | 0.01% |
790,466
-186,228
| -19% | -$9.49M |
|
1660
Rubrik
RBRK
$21.6B
| $35.8M | 0.01% |
731,217
+155,344
| +27% | +$8.92M |
|
|
GRMN
1661
Garmin
GRMN
$59.8B
| $35.8M | 0.01% |
154,306
+69,972
| +83% | +$15.7M |
|
1662
CALL
Kratos Defense & Security Solutions
KTOS
$11.8B
| $35.8M | 0.01% |
507,500
-55,300
| -10% | -$5.3M |
|
|
VG
1663
CALL
Venture Global Inc
VG
$33.9B
| $35.8M | 0.01% |
2,269,900
+756,100
| +50% | +$8.11M |
|
1664
Allison Transmission
ALSN
$10.2B
| $35.7M | 0.01% |
304,746
+241,050
| +378% | +$27.4M |
|
1665
PUT
DoorDash
DASH
$93.7B
| $35.7M | 0.01% |
237,500
-614,900
| -72% | -$114M |
|
1666
CALL
WIX.com
WIX
$3.35B
| $35.6M | 0.01% |
395,500
+134,700
| +52% | +$11.3M |
|
1667
Applied Optoelectronics
AAOI
$11B
| $35.6M | 0.01% |
421,003
-130,294
| -24% | -$8.31M |
|
1668
Allegiant Air
ALGT
$2.36B
| $35.6M | 0.01% |
439,201
+46,607
| +12% | +$4.29M |
|
1669
Moody's
MCO
$84.6B
| $35.6M | 0.01% |
81,516
-213,957
| -72% | -$101M |
|
|
1670
CALL
Moody's
MCO
$84.6B
| $35.6M | 0.01% |
81,500
+54,300
| +200% | +$25.7M |
|
1671
CALL
United States Copper Index Fund
CPER
$771M
| $35.5M | 0.01% |
1,032,000
+831,800
| +415% | +$29.7M |
|
1672
PUT
Vale
VALE
$58.7B
| $35.5M | 0.01% |
2,232,200
+460,900
| +26% | +$7.2M |
|
1673
Freshworks
FRSH
$3.51B
| $35.5M | 0.01% |
4,420,622
-2,032,878
| -32% | -$18.8M |
|
1674
CALL
Rockwell Automation
ROK
$50.1B
| $35.5M | 0.01% |
98,800
-23,400
| -19% | -$9.23M |
|
1675
Charter Communications
CHTR
$18.7B
| $35.5M | 0.01% |
164,228
-168,990
| -51% | -$36.6M |
|
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.