Marshall Wace
Marshall Wace reported 2,697 stocks worth $118B in its 13F filing for Q2 2026, filed Aug 13, 2026. Its largest holdings are IVV (25.3%), SPYM (3.5%) and AAPL (2.2%). Compared with Q1 2026, the fund opened new positions in LPLA, HUM and RSG, added to IVV, AAPL and AMZN, trimmed SPYM, NVDA and MSFT and sold out of MRK, SRE and PODD.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  IVV Ishares TR | $29.8B | 25.3% | 39.8M | +13.5M (+52%) | 8 of 8 | |
| 2 |  SPYM Spdr Series Trust | $4.1B | 3.5% | 46.9M | −2.8M (−6%) | 3 of 8 | |
| 3 |  AAPL Apple Inc | $2.6B | 2.2% | 9.1M | +701K (+8%) | 8 of 8 | |
| 4 |  AMZN Amazon Com Inc | $2.3B | 1.9% | 9.5M | +661K (+7%) | 8 of 8 | |
| 5 |  AMD Advanced Micro Devices Inc | $2.3B | 1.9% | 3.9M | +106K (+3%) | 8 of 8 | |
| 6 |  NVDA Nvidia Corporation | $1.7B | 1.5% | 8.6M | −5M (−37%) | 8 of 8 | |
| 7 |  MU Micron Technology Inc | $1.6B | 1.3% | 1.3M | +447K (+50%) | 8 of 8 | |
| 8 |  MSFT Microsoft Corp | $1.2B | 1.1% | 3.3M | −30K (−1%) | 8 of 8 | |
| 9 |  COST Costco Whsl Corp New | $1.1B | 0.9% | 1.2M | +911K (+345%) | 8 of 8 | |
| 10 |  MS Morgan Stanley | $972M | 0.8% | 4.6M | +452K (+11%) | 8 of 8 |
Positions at Jun 30, 2026, as reported. Change is against the fund's Q1 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q1 2026, gone in Q2 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
 MRK Merck & Co Inc | $334M | 2.8M |
 SRE Sempra | $132M | 1.4M |
 PODD Insulet Corp | $127M | 606K |
 RKLB Rocket Lab Corp | $121M | 1.9M |
 KMB Kimberly Clark Corp | $114M | 1.2M |
🔒 Free account: see all 30.
Options
valued at the underlying shares| Stock | Type | Value | Shares | Change |
|---|---|---|---|---|
 SMH Vaneck ETF Trust | Put | $508M | 774K | +491,400 |
 SOXX Ishares Semiconductor | Put | $298M | 466K | +465,800 |
 SLV Ishares Silver Trust | Put | $290M | 5.4M | −568,300 |
MSFT Microsoft Corp | Put | $266M | 714K | +111,500 |
 SPY Spdr S&P 500 ETF TR | Put | $264M | 354K | +209,800 |
🔒 Free account: see all 20.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q2 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Aug 13, 2026 | 13F-HR | Q2 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Marshall Wace 13F FAQ
What does Marshall Wace own?
Marshall Wace reported 2,697 stocks worth $118B in its 13F filing for Q2 2026, filed Aug 13, 2026. Its largest holdings are IVV (25.3%), SPYM (3.5%) and AAPL (2.2%). The table above lists every position in the filing (the top 10 without an account).
What did Marshall Wace buy and sell in Q2 2026?
Compared with Q1 2026: 684 new positions, 965 added to, 1,022 trimmed and 643 sold out. New positions include LPLA, HUM and RSG. It sold all of MRK, SRE and PODD.
When will Marshall Wace file its next 13F?
Holdings as of Sep 30, 2026 are due by Nov 16, 2026. The filing appears on this page within minutes of reaching the SEC.
How much is Marshall Wace's portfolio worth?
The Q2 2026 filing reports $118B in US stocks ($126B including options). That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.