Durable Capital Partners LP

Durable Capital Partners LP declares $1.1B in 3 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 11.0% of its $10.3B 13F portfolio. Largest positions: Qnity Electronics (2.2% of the company) and Fabrinet (1.7% of the company). Over time: $1.1B in 3 of these companies for Q2 2026, against $49.1M in 3 for Q1 2020 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $217.5M and sold $209.4M of these stocks, at the quarter's prices: a net purchase of $8.1M.

Performance of its AI picks

The AI-stock portfolio Durable Capital Partners LP declared for Q2 2026 (Form 13F), held unchanged, returned -23.0% in Q3 2026 (SMH -7.1%). Over the last 12 months, quarter after quarter: +41.8% (SMH +87.2%). Over three years, quarter after quarter: +76.2% (SMH +325.8%). Over five years, quarter after quarter: +42.9% (SMH +389.8%). 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. Qnity Electronics (Q) — $743.6M: 4.6M shares, 2.2% of the company, 7.2% of its portfolio (trimmed this quarter); held since Q4 2025
2. Fabrinet (FN) — $339.1M: 603,340 shares, 1.7% of the company, 3.3% of its portfolio (added this quarter); held since Q1 2026
3. Entegris (ENTG) — $52.7M: 293,139 shares, 0.19% of the company, 0.51% of its portfolio (trimmed this quarter); held since Q1 2026

By sector

• Equipment & test — $796.3M, 70% of its AI holdings, 2 companies
• Optics — $339.1M, 30% of its AI holdings, 1 company

Biggest changes this quarter

• added to Fabrinet (FN): +$217.5M at the quarter's price
• trimmed Entegris (ENTG): -$122.0M at the quarter's price
• trimmed Qnity Electronics (Q): -$87.3M 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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