Citadel

Citadel declares $39.3B in 213 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 4.5% of its $875.0B 13F portfolio. Largest positions: Amazon (0.10% of the company) and NVIDIA (0.05% of the company). Over time: $39.3B in 213 of these companies for Q2 2026, against $8.9B in 145 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $11.1B and sold $16.8B of these stocks, at the quarter's prices: a net sale of $5.7B; 6 new positions and 11 sold out.

Performance of its AI picks

The AI-stock portfolio Citadel declared for Q2 2026 (Form 13F), held unchanged, returned -1.5% in Q3 2026 (SMH -7.1%), ranked 1406 of 1,785 active managers. Over the last 12 months, quarter after quarter: +54.0% (SMH +87.2%), ranked 142 of 1,360 active managers. Over three years, quarter after quarter: +227.8% (SMH +325.8%), ranked 66 of 784 active managers. Over five years, quarter after quarter: +274.6% (SMH +389.8%), ranked 30 of 535 active managers. Trades made during a quarter are not visible in 13F filings: this measures its declared picks, not the return of its funds.

Largest positions

1. Amazon (AMZN): $2.6B, 10.9M shares, 0.10% of the company, 0.30% of its portfolio (added this quarter); held since Q4 2019 or earlier
2. NVIDIA (NVDA): $2.4B, 11.8M shares, 0.05% of the company, 0.27% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
3. Apple (AAPL): $2.1B, 7.3M shares, 0.05% of the company, 0.24% of its portfolio (added this quarter); held since Q4 2019 or earlier
4. Alphabet (GOOGL): $2.0B, 5.5M shares, 0.04% of the company, 0.22% of its portfolio (added this quarter); held since Q4 2019 or earlier
5. Microsoft (MSFT): $1.4B, 3.8M shares, 0.05% of the company, 0.16% of its portfolio (added this quarter); held since Q4 2019 or earlier
6. Broadcom (AVGO): $1.1B, 2.9M shares, 0.06% of the company, 0.13% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
7. AMD (AMD): $929.1M, 1.6M shares, 0.10% of the company, 0.11% of its portfolio (added this quarter); held since Q4 2019 or earlier
8. SpaceX (SPCX): $876.5M, 5.1M shares, 0.02% of the company, 0.10% of its portfolio
9. Applied Materials (AMAT): $781.5M, 1.1M shares, 0.14% of the company, 0.09% of its portfolio (trimmed this quarter); held since Q3 2025
10. KLA (KLAC): $766.7M, 2.5M shares, 0.19% of the company, 0.09% of its portfolio (added this quarter); held since Q4 2019 or earlier
11. Seagate (STX): $729.1M, 755,495 shares, 0.33% of the company, 0.08% of its portfolio (added this quarter); held since Q4 2019 or earlier
12. Oracle (ORCL): $697.0M, 4.8M shares, 0.16% of the company, 0.08% of its portfolio (added this quarter); held since Q4 2019 or earlier
13. Micron (MU): $693.2M, 600,523 shares, 0.05% of the company, 0.08% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
14. Meta Platforms (META): $631.1M, 1.1M shares, 0.04% of the company, 0.07% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
15. Lam Research (LRCX): $615.8M, 1.4M shares, 0.11% of the company, 0.07% of its portfolio (added this quarter); held since Q4 2019 or earlier

By sector

• Cloud & AI giants: $9.6B, 24% of its AI holdings, 6 companies
• Chips & compute: $8.1B, 20% of its AI holdings, 34 companies
• AI software: $5.1B, 13% of its AI holdings, 31 companies
• Power, electrical & cooling: $4.6B, 12% of its AI holdings, 45 companies
• Equipment & test: $3.8B, 10% of its AI holdings, 26 companies
• Neoclouds & data centers: $2.4B, 6% of its AI holdings, 29 companies
• Memory & storage: $2.1B, 5% of its AI holdings, 7 companies
• Servers & systems: $1.5B, 4% of its AI holdings, 11 companies
• Interconnect: $1.4B, 4% of its AI holdings, 10 companies
• Optics: $687.1M, 2% of its AI holdings, 14 companies

Biggest changes this quarter

• trimmed Micron (MU): -$4.6B at the quarter's price
• trimmed TSMC (TSM): -$1.7B at the quarter's price
• trimmed NVIDIA (NVDA): -$1.4B at the quarter's price
• trimmed Sandisk (SNDK): -$1.2B at the quarter's price
• added to Amazon (AMZN): +$662.5M at the quarter's price
• added to KLA (KLAC): +$652.4M at the quarter's price
• added to Seagate (STX): +$622.2M at the quarter's price
• added to Apple (AAPL): +$602.5M at the quarter's price
• added to AMD (AMD): +$564.6M at the quarter's price
• added to Texas Instruments (TXN): +$503.2M at the quarter's price

Schedule 13D/G declarations

• Cipher Mining (CIFR): 13G filed Oct 21, 2026: 22.9M shares as of Oct 14, 2026, 5.5% as declared
• IREN (IREN): 13G filed Sep 30, 2026: 18.7M shares as of Sep 23, 2026, 4.7% as declared
• Core Scientific (CORZ): 13G filed Aug 5, 2026: 20.9M shares as of Jul 29, 2026, 6.5% as declared
• Bitdeer (BTDR): 13G filed Jul 27, 2026: 9.6M shares as of Jul 20, 2026, 4.8% as declared
• Digi Power X (DGXX): 13G filed Aug 14, 2026: 2.1M shares as of Jun 30, 2026, 2.3% as declared
• HIVE Digital (HIVE): 13G filed Aug 14, 2026: 11.3M shares as of Jun 30, 2026, 4.2% as declared
• POET Technologies (POET): 13G filed Jul 8, 2026: 10.1M shares as of Jun 30, 2026, 5.9% as declared
• TeraWulf (WULF): 13G filed May 27, 2026: 29.1M shares as of May 19, 2026, 5.9% as declared
• Digi Power X (DGXX): 13G filed May 12, 2026: 3.6M shares as of May 5, 2026, 4.9% as declared
• HIVE Digital (HIVE): 13G filed May 12, 2026: 13.2M shares as of May 5, 2026, 5.2% as declared

Other holders of this size

• Robeco Institutional Asset Management B.V.: $38.7B in 120 of these companies
• MANUFACTURERS LIFE INSURANCE COMPANY, THE: $40.3B in 209 of these companies
• NEW YORK STATE COMMON RETIREMENT FUND: $38.6B in 213 of these companies
• Allianz Asset Management GmbH: $40.7B in 161 of these companies
• FIL Ltd: $38.2B in 127 of these companies
• Assenagon Asset Management S.A.: $40.9B in 152 of these companies
• BAILLIE GIFFORD & CO: $38.1B in 60 of these companies
• Dodge & Cox: $42.6B in 32 of these companies

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