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Ken Griffin Portfolio

Ken Griffin founded Citadel.

Citadel Advisors LLC Holdings · Q1 2026

Disclosed value
$141.1B
Holdings
6,006
Top sector
Technology
Filed
May 15, 2026
Performance
YTD
+12.3%
+3.3% vs S&P 500
1Y
+21.7%
+3.5% vs S&P 500
3Y
+66.1%
+1.7% vs S&P 500
Ken Griffin's latest portfolio (Q1 2026) holds 6,006 stocks worth $141.1B. Top holdings: NVIDIA Corporation (NVDA), iShares Tr, Amazon.com, Inc. (AMZN).Biggest last-quarter moves:

Citadel Advisors LLC Holdings · 6006

Q1 2026 · Showing 15 positions from the selected holding view.

Estimated gain compares the quarter-end mark with a running share-weighted mean of covered-snapshot and add-quarter mean prices. Holdings with incomplete basis or price coverage are excluded.

Stock % Avg. buy price Estimated gain Quarter-end price Last transaction
NEntertainmentNetflix, Inc. (NFLX) 0.1%
Avg. buy price $643.29 Estimated gain−85.2%Quarter-end price $95.00 Last transaction Reduced· Q1 2026Sold 74.8% of shares
N 0.1% $643.29 −85.2% $95.00 Reduced· Q1 2026Sold 74.8% of shares
MPaper, Lumber & Forest ProductsMercer International Inc. (MERC) 0.0%
Avg. buy price $6.18 Estimated gain−77.0%Quarter-end price $1.42 Last transaction Reduced· Q1 2026Sold 11.1% of shares
M 0.0% $6.18 −77.0% $1.42 Reduced· Q1 2026Sold 11.1% of shares
NSoftware - ApplicationServiceNow, Inc. (NOW) 0.2%
Avg. buy price $403.84 Estimated gain−74.1%Quarter-end price $104.55 Last transaction Added· Q1 2026Increased shares by 128.8%
N 0.2% $403.84 −74.1% $104.55 Added· Q1 2026Increased shares by 128.8%
CBeverages - Non-AlcoholicCoca-Cola Consolidated, Inc. (COKE) 0.0%
Avg. buy price $688.70 Estimated gain−72.2%Quarter-end price $191.74 Last transaction Reduced· Q1 2026Sold 89.7% of shares
C 0.0% $688.70 −72.2% $191.74 Reduced· Q1 2026Sold 89.7% of shares
GInformation Technology ServicesGlobant S.A. (GLOB) 0.0%
Avg. buy price $140.16 Estimated gain−67.1%Quarter-end price $46.11 Last transaction Added· Q1 2026Increased shares by 3.6%
G 0.0% $140.16 −67.1% $46.11 Added· Q1 2026Increased shares by 3.6%
SSoftware - ApplicationSprout Social, Inc. (SPT) 0.0%
Avg. buy price $17.10 Estimated gain−66.7%Quarter-end price $5.70 Last transaction Reduced· Q1 2026Sold 81.3% of shares
S 0.0% $17.10 −66.7% $5.70 Reduced· Q1 2026Sold 81.3% of shares
TSoftware - ApplicationAtlassian Corporation (TEAM) 0.0%
Avg. buy price $183.33 Estimated gain−62.8%Quarter-end price $68.25 Last transaction Reduced· Q1 2026Sold 98.0% of shares
T 0.0% $183.33 −62.8% $68.25 Reduced· Q1 2026Sold 98.0% of shares
SRenewable UtilitiesNuScale Power Corporation (SMR) 0.0%
Avg. buy price $28.97 Estimated gain−62.6%Quarter-end price $10.84 Last transaction Reduced· Q1 2026Sold 34.6% of shares
S 0.0% $28.97 −62.6% $10.84 Reduced· Q1 2026Sold 34.6% of shares
SInternet Content & InformationVivid Seats Inc. (SEAT) 0.0%
Avg. buy price $15.13 Estimated gain−60.9%Quarter-end price $5.91 Last transaction Added· Q1 2026Increased shares by 98.2%
S 0.0% $15.13 −60.9% $5.91 Added· Q1 2026Increased shares by 98.2%
CHousehold & Personal ProductsCoty Inc. (COTY) 0.0%
Avg. buy price $5.11 Estimated gain−60.7%Quarter-end price $2.01 Last transaction Added· Q1 2026Increased shares by 47.0%
C 0.0% $5.11 −60.7% $2.01 Added· Q1 2026Increased shares by 47.0%
BAerospace & DefenseByrna Technologies Inc. (BYRN) 0.0%
Avg. buy price $22.19 Estimated gain−58.6%Quarter-end price $9.18 Last transaction Reduced· Q1 2026Sold 62.4% of shares
B 0.0% $22.19 −58.6% $9.18 Reduced· Q1 2026Sold 62.4% of shares
DMedical - Healthcare Information ServicesDoximity, Inc. (DOCS) 0.0%
Avg. buy price $56.23 Estimated gain−58.6%Quarter-end price $23.30 Last transaction Reduced· Q1 2026Sold 68.6% of shares
D 0.0% $56.23 −58.6% $23.30 Reduced· Q1 2026Sold 68.6% of shares
DSoftware - ApplicationDuolingo, Inc. (DUOL) 0.0%
Avg. buy price $235.66 Estimated gain−58.2%Quarter-end price $98.57 Last transaction Reduced· Q1 2026Sold 14.2% of shares
D 0.0% $235.66 −58.2% $98.57 Reduced· Q1 2026Sold 14.2% of shares
OSpecialty RetailO'Reilly Automotive, Inc. (ORLY) 0.3%
Avg. buy price $211.29 Estimated gain−56.3%Quarter-end price $92.31 Last transaction Reduced· Q1 2026Sold 0.2% of shares
O 0.3% $211.29 −56.3% $92.31 Reduced· Q1 2026Sold 0.2% of shares
HSoftware - ApplicationHubSpot, Inc. (HUBS) 0.0%
Avg. buy price $548.63 Estimated gain−55.5%Quarter-end price $244.10 Last transaction Reduced· Q1 2026Sold 32.2% of shares
H 0.0% $548.63 −55.5% $244.10 Reduced· Q1 2026Sold 32.2% of shares
Data through Q1 2026 · filed May 15, 2026
15 of 639
Show all 639 holdings

Biggest position changes

In Q1 2026: 1519 new, 2259 added, 2207 reduced, 434 exited.
Q1 2026Q4 2025Q3 2025Q2 2025
Largest disclosed changes in Q1 2026, ranked by estimated dollar change using the quarter's average market price.
Reduced or exitedBought or added
A Amazon.com, Inc. (AMZN) −$1.3B V Visa Inc. (V) −$1.3B L Lam Research Corporation (LRCX) −$700M N NVIDIA Corporation (NVDA) −$532M L Eli Lilly and Company (LLY) −$465M N Netflix, Inc. (NFLX) −$452M U UnitedHealth Group Incorporated (UNH) −$413M M Medtronic plc (MDT) −$407M M Meta Platforms, Inc. (META) +$660M M Micron Technology, Inc. (MU) +$605M M Mastercard Incorporated (MA) +$496M T Tesla, Inc. (TSLA) +$495M W Warner Bros. Discovery, Inc. (WBD) +$493M S Constellation Brands, Inc. (STZ) +$453M E Electronic Arts Inc. (EA) +$394M S SS&C Technologies Holdings, Inc. (SSNC) +$371M
Other share changes without a dollar estimate, ranked by size.
Reduced or exitedBought or added
Halozyme Therapeutics Inc −22.7M
Itron Inc −17.5M
Evergy Inc −17.4M
Ramaco Res Inc −15.4M
S Snap Inc. (SNAP) −14.6M
World Kinect Corporation −12.7M
Granite Constr Inc −12.0M
Coinbase Global Inc −9.5M
Ugi Corp New New+72.0M
Ionis Pharmaceuticals Inc New+58.0M
Live Nation Entertainment In +56.4M
Echostar Corp New+55.0M
Joby Aviation Inc New+54.0M
Dexcom Inc New+37.5M
Liberty Media Corp New+36.4M
Nutanix Inc New+35.4M

New this quarter

A AstraZeneca PLC (AZN) New· Q1 2026 B Boot Barn Holdings, Inc. (BOOT) New· Q1 2026 B TopBuild Corp. (BLD) New· Q1 2026 W WEX Inc. (WEX) New· Q1 2026 R Regal Rexnord Corporation (RRX) New· Q1 2026 F Six Flags Entertainment Corporation (FUN) New· Q1 2026 E ESCO Technologies Inc. (ESE) New· Q1 2026 N NewMarket Corporation (NEU) New· Q1 2026

Portfolio composition

Largest holdings in Q1 2026, sized by their share of the disclosed portfolio. This shows what is owned, not what changed.

O'Reilly Automotive, Inc. (ORLY): 0.3%ServiceNow, Inc. (NOW): 0.2%Netflix, Inc. (NFLX): 0.1%HubSpot, Inc. (HUBS): 0.0%Duolingo, Inc. (DUOL): 0.0%Other holdings: 99.3%
O O'Reilly Automotive, Inc. (ORLY) 0.3%
N ServiceNow, Inc. (NOW) 0.2%
N Netflix, Inc. (NFLX) 0.1%
H HubSpot, Inc. (HUBS) 0.0%
D Duolingo, Inc. (DUOL) 0.0%
Other holdings 99.3%
Show more

Portfolio over time

Each band is a top holding's share of the disclosed portfolio, quarter by quarter; the rest is grouped as other.
3Y5YAll
0%50%100%202120222023202420252026
NVIDIA Corporation (NVDA)Amazon.com, Inc. (AMZN)Micron Technology, Inc. (MU)Taiwan Semiconductor Manufacturing Company Limited (TSM)Apple Inc. (AAPL)Meta Platforms, Inc. (META)Other holdings

Investors with similar portfolios

Ken FisherFisher Asset Management, LLCAlso holds iShares Tr 7 10yr Tr Bd ETF and NVIDIA Corporation (NVDA)InvescoInvesco Ltd.Also holds NVIDIA Corporation (NVDA) and Alphabet Inc. (GOOGL)Ray DalioBridgewater Associates, LPAlso holds State Str Spdr S&p 500 ETF T and iShares TrTiger Global ManagementTiger Global Management LLCAlso holds Alphabet Inc. (GOOGL) and Amazon.com, Inc. (AMZN)David TepperAppaloosa LPAlso holds Amazon.com, Inc. (AMZN) and Micron Technology, Inc. (MU)Jim SimonsRenaissance Technologies LLCAlso holds iShares Tr and NVIDIA Corporation (NVDA)

About Ken Griffin and Citadel Advisors LLC

Ken Griffin founded Citadel. This page shows the quarterly Form 13F report filed by Citadel Advisors for certain United States listed long positions, not Griffin's personal account or the firm's complete trading activity. Cash, short positions, hedges, many derivatives, and market-making activity are outside that report.

SEC filing history for Citadel Advisors LLC

Ken Griffin FAQ

Profile refreshed July 20, 2026

What stocks does Ken Griffin own?

As of the Q1 2026 filing, Ken Griffin's largest disclosed holdings are NVIDIA Corporation (NVDA), iShares Tr, Amazon.com, Inc. (AMZN). The table shows 15 of 6,006 positions by default, with an exact-count control for the remaining rows. Disclosed shares and values remain visible even when a separate market-price estimate is unavailable.

What did Ken Griffin buy last quarter?

The biggest disclosed buys in Q1 2026 were Meta Platforms, Inc. (META), Micron Technology, Inc. (MU), Mastercard Incorporated (MA), based on the Citadel Advisors LLC 13F filing. New positions are marked "new" in the table above.

What did Ken Griffin sell last quarter?

The biggest reductions in Q1 2026 were Amazon.com, Inc. (AMZN), Visa Inc. (V), Lam Research Corporation (LRCX). The filing comparison contains 434 full exits, summarized in the activity view above.

How big is Ken Griffin's portfolio?

The latest 13F discloses $141.1B across 6,006 positions in Q1 2026. 13F filings cover US-listed long positions only; cash and short positions are not disclosed.

How up to date is this?

Funds file 13Fs up to 45 days after each quarter ends, so this portfolio reflects Q1 2026, the latest disclosed quarter. The filing date is shown with every table.

Where does the Citadel Advisors LLC portfolio data come from?

Non-rejected, non-superseded SEC Form 13F filings for Citadel Advisors LLC provide the Q1 2026 holdings, disclosed values, and filing date shown here. WhoBought prefers filings whose value units validate and labels a sparse filing when validation is unavailable. Industry labels come from the local company classification record.

How is performance calculated?

Performance uses daily closing prices for holdings with available market-price history. It covers the priced share of disclosed value (66%); holdings without sufficient price history are excluded from the calculation.

Who is Ken Griffin?

Ken Griffin is an American hedge fund manager and entrepreneur. He founded Citadel, serves as its chief executive and co-chief investment officer, and also owns Citadel Securities.

Are Citadel and Citadel Securities the same business?

No. Citadel is the hedge fund business. Citadel Securities is a market maker. This page follows the filing made by Citadel Advisors rather than the market-making firm's activity.

Did Ken Griffin really start trading from Harvard?

Yes. He traded while at Harvard, put a satellite dish on his dormitory roof for stock quotes, and launched his first fund in 1987.

When did Griffin found Citadel?

He founded Citadel in 1990 after graduating from Harvard and spending time trading capital for Glenwood's founder. Citadel began with $4.6 million under management.

What does Ken Griffin's track record refer to?

Published figures about Citadel usually concern gains produced for its funds. The performance shown on this page is narrower: it follows the priced portion of securities visible in Citadel Advisors' 13F filings.

Does this page show Ken Griffin's own stock portfolio?

No. The current holdings and quarterly changes belong to Citadel Advisors' reported US-listed long positions, not Griffin's personal brokerage account.

Does the 13F capture everything Citadel trades?

It does not. Shorts, cash, hedges, many derivatives, and market-making activity fall outside this view, which matters for a complex multi-strategy firm.

Can someone reproduce Citadel's strategy from these holdings?

No. Readers can inspect reported stocks, buys, reductions, and exits on the page, but a delayed long-only filing cannot reconstruct the firm's full positions, hedges, timing, or trading systems.

Is the value on this page Ken Griffin's net worth?

No. It is the reported value of covered securities in a Citadel Advisors filing. Griffin's personal wealth and his ownership of Citadel-related businesses are separate.