Analog Century Management LP

Analog Century Management LP declares $2.6B in 23 of the 220 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 94.5% of its $2.7B 13F portfolio. Largest positions: Applied Materials (0.03% of the company) and Amphenol (0.07% of the company). Over time: $2.6B in 23 of these companies for Q2 2026, against $160.4M in 22 for Q4 2020 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $456.4M and sold $864.4M of these stocks, at the quarter's prices: a net sale of $408.0M; 4 new positions and 2 sold out.

Performance of its AI picks

The AI-stock portfolio Analog Century Management LP declared for Q2 2026 (Form 13F), held unchanged, returned -11.8% in Q3 2026 (SMH -7.1%), ranked 1665 of 1,776 active managers. Over the last 12 months, quarter after quarter: +128.8% (SMH +87.2%), ranked 10 of 1,356 active managers. Over three years, quarter after quarter: +458.3% (SMH +325.8%), ranked 5 of 782 active managers. Over five years, quarter after quarter: +585.6% (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. Applied Materials (AMAT) — $158.8M: 219,615 shares, 0.03% of the company, 5.8% of its portfolio (trimmed this quarter); held since Q3 2025
  2. Amphenol (APH) — $142.8M: 1.6M shares, 0.07% of the company, 5.2% of its portfolio (added this quarter); held since Q3 2024
  3. TSMC (TSM) — $141.6M: 296,487 shares, 0.01% of the company, 5.2% of its portfolio (trimmed this quarter); held since Q4 2022
  4. Micron (MU) — $137.5M: 119,129 shares, 0.01% of the company, 5.0% of its portfolio (trimmed this quarter); held since Q4 2025
  5. NVIDIA (NVDA) — $135.6M: 677,694 shares, 0.00% of the company, 5.0% of its portfolio (trimmed this quarter); held since Q4 2020
  6. Onto Innovation (ONTO) — $126.2M: 333,422 shares, 0.68% of the company, 4.6% of its portfolio (new position this quarter)
  7. Advanced Energy Industries (AEIS) — $124.1M: 332,945 shares, 0.83% of the company, 4.5% of its portfolio (added this quarter); held since Q3 2025
  8. Astera Labs (ALAB) — $122.5M: 253,619 shares, 0.15% of the company, 4.5% of its portfolio (trimmed this quarter); held since Q4 2025
  9. Silicon Motion (SIMO) — $120.8M: 362,502 shares, 1.1% of the company, 4.4% of its portfolio (trimmed this quarter); held since Q1 2026
  10. Analog Devices (ADI) — $114.2M: 287,443 shares, 0.06% of the company, 4.2% of its portfolio (new position this quarter)
  11. MACOM (MTSI) — $112.7M: 296,293 shares, 0.39% of the company, 4.1% of its portfolio (trimmed this quarter); held since Q4 2020
  12. Ciena (CIEN) — $111.0M: 226,198 shares, 0.16% of the company, 4.1% of its portfolio (trimmed this quarter); held since Q3 2024
  13. TTM Technologies (TTMI) — $109.5M: 585,401 shares, 0.56% of the company, 4.0% of its portfolio (new position this quarter)
  14. Lumentum (LITE) — $109.0M: 127,088 shares, 0.14% of the company, 4.0% of its portfolio (trimmed this quarter); held since Q1 2025
  15. Viavi (VIAV) — $108.3M: 2.3M shares, 0.92% of the company, 4.0% of its portfolio (trimmed this quarter); held since Q1 2026

By sector

Biggest changes this quarter

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