Banco Santander, S.A.

New 13F: Q3 2026

Banco Santander, S.A. filed its 13F for the quarter ended Sep 30, 2026 on Nov 10, 2026: $8.1B in AI and semiconductor stocks; $1.7B bought and $626.4M sold against its previous quarter, at the quarter's prices.

Banco Santander, S.A. declares $6.6B in 83 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 40.9% of its $16.1B 13F portfolio. Largest positions: Microsoft (0.03% of the company) and NVIDIA (0.02% of the company). Over time: $6.6B in 83 of these companies for Q2 2026, against $720.0M in 42 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $2.4B and sold $120.0M of these stocks, at the quarter's prices: a net purchase of $2.3B; 15 new positions and 3 sold out.

Performance of its AI picks

The AI-stock portfolio Banco Santander, S.A. declared for Q2 2026 (Form 13F), held unchanged, returned +6.6% in Q3 2026 (SMH -7.1%), ranked 370 of 1,785 active managers. Over the last 12 months, quarter after quarter: +27.2% (SMH +87.2%), ranked 785 of 1,360 active managers. Over three years, quarter after quarter: +172.6% (SMH +325.8%), ranked 172 of 784 active managers. Over five years, quarter after quarter: +186.4% (SMH +389.8%), ranked 116 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. Microsoft (MSFT): $932.6M, 2.5M shares, 0.03% of the company, 5.8% of its portfolio (added this quarter); held since Q4 2019 or earlier
  2. NVIDIA (NVDA): $918.8M, 4.6M shares, 0.02% of the company, 5.7% of its portfolio (added this quarter); held since Q4 2019 or earlier
  3. Apple (AAPL): $669.5M, 2.3M shares, 0.02% of the company, 4.2% of its portfolio (added this quarter); held since Q4 2019 or earlier
  4. Alphabet (GOOGL): $595.1M, 1.7M shares, 0.01% of the company, 3.7% of its portfolio (added this quarter); held since Q4 2019 or earlier
  5. Micron (MU): $465.7M, 403,459 shares, 0.04% of the company, 2.9% of its portfolio (added this quarter); held since Q4 2019 or earlier
  6. Amazon (AMZN): $453.9M, 1.9M shares, 0.02% of the company, 2.8% of its portfolio (added this quarter); held since Q4 2019 or earlier
  7. Meta Platforms (META): $384.5M, 682,535 shares, 0.03% of the company, 2.4% of its portfolio (added this quarter); held since Q4 2019 or earlier
  8. Broadcom (AVGO): $308.4M, 816,346 shares, 0.02% of the company, 1.9% of its portfolio (added this quarter); held since Q4 2019 or earlier
  9. Caterpillar (CAT): $142.4M, 133,742 shares, 0.03% of the company, 0.89% of its portfolio (added this quarter); held since Q4 2019 or earlier
  10. Applied Materials (AMAT): $134.0M, 185,274 shares, 0.02% of the company, 0.83% of its portfolio (added this quarter); held since Q4 2019 or earlier
  11. Marvell (MRVL): $126.6M, 425,132 shares, 0.05% of the company, 0.79% of its portfolio (added this quarter); held since Q4 2024
  12. AMD (AMD): $118.5M, 203,922 shares, 0.01% of the company, 0.74% of its portfolio (added this quarter); held since Q3 2020
  13. Oracle (ORCL): $105.8M, 722,074 shares, 0.02% of the company, 0.66% of its portfolio (added this quarter); held since Q4 2019 or earlier
  14. Lam Research (LRCX): $97.8M, 225,762 shares, 0.02% of the company, 0.61% of its portfolio (trimmed this quarter); held since Q2 2023
  15. Sandisk (SNDK): $90.2M, 39,672 shares, 0.03% of the company, 0.56% of its portfolio (new position this quarter)

By sector

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