MARSHALL WACE, LLP
PERIOD 2026-Q1 · SOURCE: SEC EDGAR (PUBLIC)
Holdings as of the 2026-Q1 13F-HR filing. 13F is disclosed up to 45 days after quarter-end.
Concentration
Share of the largest positions we rank. Long US-listed equity positions as filed; percentages are of reported 13F value, which excludes shorts, cash, non-US and private holdings.
| Tier | Reported value | Share |
|---|---|---|
| Top position | $17.2B | 44.4% |
| Top 5 | $27.3B | 70.6% |
| Top 10 | $32.5B | 83.9% |
Top holdings
| # | Security | Shares | Reported value | % of value |
|---|---|---|---|---|
| 1 | IVV ISHARES-S&P 500 trimmed | 26,281,933 | $17.2B | 18.5% |
| 2 | SPYM SPDR PORTFOLIO L new | 49,650,246 | $3.8B | 4.1% |
| 3 | NVDA NVIDIA CORP trimmed | 13,663,339 | $2.4B | 2.6% |
| 4 | AAPL APPLE INC added | 8,383,099 | $2.1B | 2.3% |
| 5 | AMZN AMAZON.COM INC trimmed | 8,852,795 | $1.8B | 2.0% |
| 6 | GOOGL ALPHABET INC-C trimmed | 5,132,362 | $1.5B | 1.6% |
| 7 | MSFT MICROSOFT CORP trimmed | 3,370,398 | $1.2B | 1.3% |
| 8 | CVX CHEVRON CORP added | 4,174,661 | $864M | 0.9% |
| 9 | TSLA TESLA INC trimmed | 2,087,669 | $776M | 0.8% |
| 10 | AMD ADV MICRO DEVICE trimmed | 3,791,986 | $771M | 0.8% |
| 11 | HLT HILTON WORLDWIDE added | 2,522,775 | $767M | 0.8% |
| 12 | AVGO BROADCOM INC trimmed | 2,463,350 | $762M | 0.8% |
Quarter-over-quarter changes
What changed between the 2025-Q4 and 2026-Q1 13F filings. New positions and exits reflect the tracked snapshot; adds and trims are measured on reported value (split-invariant), and moves under $0.25M are omitted as noise.
Between the 2025-Q4 and 2026-Q1 filings, this filer opened its largest new position in SPYM, fully exited VOO, added most to CVX, and trimmed IVV the most. This describes what the 13F reported — not a recommendation.
New positions 524
- SPYM$3.8B
- VLO$169M
- COP$163M
- GPC$156M
- WELL$134M
- KEYS$117M
Exited 402
- VOO$2.9B
- SCHW$286M
- EL$217M
- DB$214M
- CPNG$204M
- MDB$201M
Largest adds
- CVX$668M
- MS$383M
- ABNB$354M
- TMUS$350M
- MAR$324M
- AAPL$318M
Largest trims
- IVV$5.1B
- AMZN$925M
- LLY$769M
- WMT$727M
- MSFT$566M
- DASH$499M
Portfolio trend
Reported 13F value and position count by filing quarter (independent scales).
Frequently asked
What does MARSHALL WACE, LLP own?
MARSHALL WACE, LLP reported 2,623 long US-listed equity positions worth $92.6B in its 2026-Q1 13F filing. The largest positions and their reported values are listed above.
What changed in MARSHALL WACE, LLP's portfolio last quarter?
The quarter-over-quarter section lists new positions, exits, and the largest adds and trims versus the prior filing, measured on reported value.
Where does this data come from?
Holdings are parsed from SEC Form 13F-HR filings on EDGAR (public filings). 13F is disclosed up to 45 days after quarter-end and reflects long US-listed equity positions only. Informational, not investment advice.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It is filed up to 45 days after quarter-end, so it is backward-looking — the manager may have traded since — and it covers long US-listed equities only, not short positions, cash, or private holdings. Reading a 13F tells you what a manager owned, not whether you should own it.