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 | |
|---|---|---|---|---|---|---|
|
401
State Street SPDR S&P 500 ETF Trust
SPY
$809B
| $226M | 0.04% |
347,775
-1,814,273
| -84% | -$1.23B |
|
402
CALL
T-Mobile US
TMUS
$191B
| $226M | 0.04% |
1,074,500
-111,800
| -9% | -$23M |
|
403
XPO
XPO
$24.3B
| $225M | 0.04% |
1,157,714
+639,952
| +124% | +$115M |
|
404
CALL
General Motors
GM
$76.3B
| $225M | 0.04% |
3,017,700
+48,600
| +2% | +$3.86M |
|
405
CALL
State Street Industrial Select Sector SPDR ETF
XLI
$34.6B
| $224M | 0.04% |
1,386,900
-201,300
| -13% | -$33.8M |
|
406
PUT
AbbVie
ABBV
$441B
| $224M | 0.04% |
1,030,200
-402,600
| -28% | -$89.3M |
|
407
CALL
Corpay
CPAY
$26.5B
| $224M | 0.04% |
769,300
+94,100
| +14% | +$30.1M |
|
408
Keysight
KEYS
$60.2B
| $224M | 0.04% |
791,836
-525,665
| -40% | -$132M |
|
409
Eli Lilly
LLY
$1.08T
| $222M | 0.04% |
241,714
-458,045
| -65% | -$464M |
|
410
CALL
Synopsys
SNPS
$79.2B
| $222M | 0.04% |
560,700
-77,825
| -12% | -$35.2M |
|
411
eBay
EBAY
$45.9B
| $222M | 0.04% |
2,440,865
+1,726,341
| +242% | +$155M |
|
412
PUT
United Parcel Service
UPS
$87.8B
| $222M | 0.04% |
2,255,800
-1,022,900
| -31% | -$110M |
|
413
ExxonMobil
XOM
$654B
| $222M | 0.04% |
1,307,956
-879,008
| -40% | -$128M |
|
414
PUT
Royal Caribbean
RCL
$81.9B
| $220M | 0.04% |
798,300
+412,500
| +107% | +$123M |
|
415
BP
BP
$111B
| $220M | 0.04% |
4,670,938
+2,108,056
| +82% | +$82.6M |
|
|
416
PUT
State Street Industrial Select Sector SPDR ETF
XLI
$34.6B
| $220M | 0.04% |
1,357,400
+118,000
| +10% | +$19.8M |
|
417
Caterpillar
CAT
$396B
| $219M | 0.04% |
309,529
-16,526
| -5% | -$11.4M |
|
418
CALL
Ulta Beauty
ULTA
$22.9B
| $219M | 0.04% |
418,500
+134,100
| +47% | +$85.3M |
|
419
PUT
Cisco
CSCO
$487B
| $219M | 0.04% |
2,818,700
-3,088,200
| -52% | -$242M |
|
420
PUT
Comfort Systems
FIX
$61.5B
| $218M | 0.04% |
158,100
+100,400
| +174% | +$127M |
|
421
RTX Corp
RTX
$297B
| $218M | 0.04% |
1,129,201
+81,810
| +8% | +$16.3M |
|
422
MKS Inc
MKSI
$20.8B
| $218M | 0.04% |
947,032
+489,159
| +107% | +$111M |
|
423
TransUnion
TRU
$15.1B
| $217M | 0.04% |
3,143,309
+2,987,225
| +1,914% | +$229M |
|
424
PUT
KraneShares CSI China Internet ETF
KWEB
$5.45B
| $217M | 0.04% |
7,630,900
-2,312,200
| -23% | -$75.7M |
|
425
PUT
Amgen
AMGN
$225B
| $217M | 0.04% |
615,500
-150,100
| -20% | -$53.5M |
|
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.