AQR Arbitrage LLC

AQR Arbitrage LLC declares $406.5M in 5 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 5.8% of its $7.0B 13F portfolio. Largest positions: Qorvo (2.0% of the company) and Silicon Labs (1.9% of the company). Over time: $406.5M in 5 of these companies for Q2 2026, against $16.3M in 3 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $170.4M and sold $8.2M of these stocks, at the quarter's prices: a net purchase of $162.2M; 2 new positions and 1 sold out.

Performance of its AI picks

The AI-stock portfolio AQR Arbitrage LLC declared for Q2 2026 (Form 13F), held unchanged, returned +7.8% in Q3 2026 (SMH -7.1%), ranked 254 of 1,783 active managers. Over the last 12 months, quarter after quarter: +61.1% (SMH +87.2%). 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. Qorvo (QRVO) — $166.2M: 1.8M shares, 2.0% of the company, 2.4% of its portfolio (added this quarter); held since Q4 2025
2. Silicon Labs (SLAB) — $140.5M: 643,007 shares, 1.9% of the company, 2.0% of its portfolio (added this quarter); held since Q1 2026
3. Dominion Energy (D) — $45.9M: 671,858 shares, 0.08% of the company, 0.65% of its portfolio (new position this quarter)
4. Alphabet (GOOGL) — $45.1M: 127,605 shares, 0.00% of the company, 0.64% of its portfolio (added this quarter); held since Q1 2026
5. Synaptics (SYNA) — $8.7M: 71,292 shares, 0.18% of the company, 0.12% of its portfolio (new position this quarter)

By sector

• Chips & compute — $315.5M, 78% of its AI holdings, 3 companies
• Power, electrical & cooling — $45.9M, 11% of its AI holdings, 1 company
• Cloud & AI giants — $45.1M, 11% of its AI holdings, 1 company

Biggest changes this quarter

• added to Silicon Labs (SLAB): +$73.0M at the quarter's price
• opened a position in Dominion Energy (D): +$45.9M at the quarter's price
• added to Alphabet (GOOGL): +$37.8M at the quarter's price
• opened a position in Synaptics (SYNA): +$8.7M at the quarter's price
• sold out of Veeco (VECO): -$8.2M at the quarter's price
• added to Qorvo (QRVO): +$4.9M at the quarter's price

Other holders of this size

• Vanguard — $3.6T in 225 of these companies
• BlackRock — $3.1T in 226 of these companies
• State Street — $1.6T in 222 of these companies
• Fidelity (FMR) — $1.2T in 223 of these companies
• Geode Capital — $890.9B in 220 of these companies
• Capital Group — $881.7B in 132 of these companies
• JPMorgan — $717.8B in 225 of these companies
• Invesco — $683.3B in 220 of these companies

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