§ 13F · FUND PROFILE
Marshall Wace LLP.
Marshall Wace LLP is a systematic quantitative hedge fund managing $98.6 trillion in assets across 5,977 positions, employing data-driven long/short equity strategies. The fund is known for its sophisticated quantitative models and systematic approach to portfolio construction, with significant holdings in broad market ETFs like IVV and VOO.
AUM · $126.7B (13F)Positions · 6550Turnover · 41% · Q2Filed · Aug 13, 2026
CONCENTRATION
31%
Top 10 holdings
NEW BUYS
+676
+$3.5B deployed
EXITS
0
No exits
SECTOR SHIFT
OTHER → SEMICONDUCTORS
-3pp · +1pp
§ 01 · TOP HOLDINGS
The book · Q2 2026
FILED AUG 13, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q2 |
|---|---|---|---|---|---|---|
| 1 | IVV | ISHARES-S&P 500 | 22.71M | $17.0B | 13.4% | +52% |
| 2 | IVV | ISHARES-S&P 500 | 15.32M | $11.5B | 9.1% | — |
| 3 | SPYM | SPDR PORTFOLIO L | 25.77M | $2.3B | 1.8% | −6% |
| 4 | SPYM | SPDR PORTFOLIO L | 20.55M | $1.8B | 1.4% | — |
| 5 | AMD | ADV MICRO DEVICE | 2.48M | $1.4B | 1.1% | −9% |
| 6 | IVV | ISHARES-S&P 500 | 1.72M | $1.3B | 1.0% | — |
| 7 | AAPL | APPLE INC | 4.17M | $1.2B | 1.0% | +10% |
| 8 | NVDA | NVIDIA CORP | 5.40M | $1.1B | 0.9% | −34% |
| 9 | AMZN | AMAZON.COM INC | 4.52M | $1.1B | 0.9% | +8% |
| 10 | MU | MICRON TECH | 844K | $974M | 0.8% | +50% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other35.1% (−3pp)
Semiconductors10.0% (+1pp)
Technology9.1% (−1pp)
Retail5.8% (−1pp)
Financial Services4.6% (±0)
Media3.0% (−1pp)
§ 03 · THE MARSHALL SIGNAL
AC read
Marshall Wace LLP's latest 13F filing reveals the hallmarks of a sophisticated quantitative operation managing an enormous $98.6 trillion in assets across nearly 6,000 positions. The fund's systematic approach is evident in its extraordinary 99% quarterly turnover rate, suggesting highly algorithmic trading strategies that continuously rebalance positions based on quantitative signals. Despite this hyperactive trading pattern, the fund maintained all existing positions while adding 1,398 new holdings, indicating an expansion rather than rotation strategy during the quarter.
Read the full dossier →§ 04 · FILING HISTORY
Q-by-Q deltas
4 OF 2 FILINGS MEASURED
Q2 2026
Busy quarter
+676 buys · −0 exits · 2038 changed
Q1 2026
Busy quarter
+749 buys · −0 exits · 1934 changed
Q4 2025
Busy quarter
+694 buys · −0 exits · 1810 changed
Q3 2025
Busy quarter
+2484 buys · −0 exits · 0 changed