§ 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 · $98.6B (13F)Positions · 5977Turnover · 41% · Q1Filed · May 15, 2026
CONCENTRATION
25%
Top 10 holdings
NEW BUYS
+749
+$6.9B deployed
EXITS
0
No exits
SECTOR SHIFT
RETAIL → OTHER
-2pp · +3pp
3YR HIT RATE
—
Top-5 overlap
§ 01 · TOP HOLDINGS
The book · Q1 2026
FILED MAY 15, 2026
| # | Ticker | Name | Shares | $ value | % port | Δ Q1 |
|---|---|---|---|---|---|---|
| 1 | IVV | ISHARES-S&P 500 | 12.92M | $8.4B | 8.4% | −19% |
| 2 | IVV | ISHARES-S&P 500 | 11.84M | $7.7B | 7.7% | — |
| 3 | SPYM | SPDR PORTFOLIO L | 36.96M | $2.8B | 2.8% | NEW |
| 4 | NVDA | NVIDIA CORP | 6.43M | $1.1B | 1.1% | −8% |
| 5 | AAPL | APPLE INC | 4.36M | $1.1B | 1.1% | +24% |
| 6 | AMZN | AMAZON.COM INC | 4.95M | $1.0B | 1.0% | −26% |
| 7 | IVV | ISHARES-S&P 500 | 1.45M | $945M | 0.9% | — |
| 8 | SPYM | SPDR PORTFOLIO L | 11.46M | $877M | 0.9% | — |
| 9 | NVDA | NVIDIA CORP | 4.15M | $724M | 0.7% | — |
| 10 | TSM | TAIWAN SEMIC-ADR | 1.97M | $666M | 0.7% | +49% |
§ 02 · SECTOR ALLOCATION
Where the money is
Other38.3% (+3pp)
Technology10.1% (+1pp)
Semiconductors8.7% (+1pp)
Retail6.5% (−2pp)
Financial Services4.7% (±0)
Media4.2% (−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
2 FILINGS
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