Marshall Wace

Marshall Wace declares $27.5B in 181 of the 230 AI and semiconductor companies tracked on Silicon Floor, as of Jun 30, 2026 (Form 13F): 21.7% of its $126.7B 13F portfolio. Largest positions: Apple (0.06% of the company) and Amazon (0.09% of the company). Over time: $27.5B in 181 of these companies for Q2 2026, against $4.7B in 111 for Q4 2019 (13F values as filed). From Mar 31, 2026 to Jun 30, 2026, it bought $6.0B and sold $9.9B of these stocks, at the quarter's prices: a net sale of $3.9B; 20 new positions and 30 sold out.

Performance of its AI picks

The AI-stock portfolio Marshall Wace declared for Q2 2026 (Form 13F), held unchanged, returned +1.6% in Q3 2026 (SMH -7.1%), ranked 1193 of 1,785 active managers. Over the last 12 months, quarter after quarter: +50.2% (SMH +87.2%), ranked 164 of 1,360 active managers. Over three years, quarter after quarter: +192.7% (SMH +325.8%), ranked 118 of 784 active managers. Over five years, quarter after quarter: +221.2% (SMH +389.8%), ranked 62 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. Apple (AAPL): $2.6B, 9.1M shares, 0.06% of the company, 2.1% of its portfolio (added this quarter); held since Q4 2019 or earlier
2. Amazon (AMZN): $2.3B, 9.5M shares, 0.09% of the company, 1.8% of its portfolio (added this quarter); held since Q4 2019 or earlier
3. AMD (AMD): $2.3B, 3.9M shares, 0.24% of the company, 1.8% of its portfolio (added this quarter); held since Q4 2019 or earlier
4. NVIDIA (NVDA): $1.7B, 8.6M shares, 0.04% of the company, 1.4% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
5. Micron (MU): $1.6B, 1.3M shares, 0.12% of the company, 1.2% of its portfolio (added this quarter); held since Q4 2019 or earlier
6. Microsoft (MSFT): $1.2B, 3.3M shares, 0.04% of the company, 0.98% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
7. Alphabet (GOOGL): $1.0B, 2.9M shares, 0.02% of the company, 0.80% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
8. TSMC (TSM): $864.6M, 1.8M shares, 0.03% of the company, 0.68% of its portfolio (trimmed this quarter); held since Q2 2025
9. Meta Platforms (META): $502.2M, 891,552 shares, 0.03% of the company, 0.40% of its portfolio (trimmed this quarter); held since Q4 2019 or earlier
10. Bloom Energy (BE): $490.1M, 1.6M shares, 0.55% of the company, 0.39% of its portfolio (added this quarter); held since Q4 2020
11. IBM (IBM): $478.9M, 1.7M shares, 0.18% of the company, 0.38% of its portfolio (added this quarter); held since Q3 2025
12. Texas Instruments (TXN): $477.8M, 1.6M shares, 0.18% of the company, 0.38% of its portfolio (added this quarter); held since Q3 2025
13. Sandisk (SNDK): $475.7M, 209,217 shares, 0.15% of the company, 0.38% of its portfolio (trimmed this quarter); held since Q1 2025
14. Qualcomm (QCOM): $458.7M, 2.5M shares, 0.23% of the company, 0.36% of its portfolio (added this quarter); held since Q4 2023
15. Broadcom (AVGO): $446.5M, 1.2M shares, 0.02% of the company, 0.35% of its portfolio (trimmed this quarter); held since Q1 2024

By sector

• Chips & compute: $8.1B, 29% of its AI holdings, 30 companies
• Cloud & AI giants: $7.7B, 28% of its AI holdings, 6 companies
• Memory & storage: $2.6B, 9% of its AI holdings, 7 companies
• AI software: $2.5B, 9% of its AI holdings, 26 companies
• Power, electrical & cooling: $2.2B, 8% of its AI holdings, 36 companies
• Equipment & test: $1.6B, 6% of its AI holdings, 24 companies
• Optics: $944.8M, 3% of its AI holdings, 11 companies
• Servers & systems: $907.8M, 3% of its AI holdings, 9 companies
• Interconnect: $641.6M, 2% of its AI holdings, 11 companies
• Neoclouds & data centers: $558.3M, 2% of its AI holdings, 21 companies

Biggest changes this quarter

• trimmed NVIDIA (NVDA): -$1.0B at the quarter's price
• trimmed Alphabet (GOOGL): -$809.5M at the quarter's price
• trimmed Sandisk (SNDK): -$808.0M at the quarter's price
• trimmed Marvell (MRVL): -$741.7M at the quarter's price
• trimmed Intel (INTC): -$664.9M at the quarter's price
• added to Micron (MU): +$516.3M at the quarter's price
• trimmed Broadcom (AVGO): -$484.1M at the quarter's price
• added to Qualcomm (QCOM): +$454.2M at the quarter's price
• added to Texas Instruments (TXN): +$434.5M at the quarter's price
• added to IBM (IBM): +$397.9M at the quarter's price

Other holders of this size

• DANSKE BANK A/S: $27.1B in 130 of these companies
• Quantinno Capital Management LP: $28.5B in 205 of these companies
• Two Sigma: $27.0B in 220 of these companies
• LAZARD ASSET MANAGEMENT LLC: $28.8B in 179 of these companies
• NEW YORK STATE TEACHERS RETIREMENT SYSTEM: $27.0B in 152 of these companies
• CANADA LIFE ASSURANCE Co: $29.1B in 138 of these companies
• Clear Street Group Inc.: $26.8B in 87 of these companies
• Gigafund Management Company, LLC: $29.4B in 1 of these companies

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