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Marshall Wace 13F Portfolio

Portfolio Manager
Marshall Wace LLP
Performance
+16.82% (2026 Q2)
AUM (13F)
$126.70B
# of Holdings
2719
Performance Rank
Allocation (Top 20)
46.73%
Latest filing
Q2 2026

2026 Q2 · 13F Analysis

Marshall Wace LLP: From AI Darlings to S&P and Cash-Flow Machines

Published September 6, 2026 · Based on the SEC 13F filing for 2026 Q2

Key takeaways

  • Banks and payment rails are the new incremental bet over pure tech beta
  • AI winners fund a shift into cheaper semiconductor and telecom plumbing
  • Defensive healthcare and staples become the ballast around a big S&P core
  • Index exposure via IVV replaces single-name growth risk at the margin
  • Energy and cyclicals stay tactical, not thesis-defining capital sinks

The thesis in one look

Marshall Wace used 2026 Q2 to turn a concentrated AI-and-megacap tech trade into a broad, cash‑flow‑centric equity book.

The huge story isn’t a single stock; it’s the decision to park 25.17% of the book in IVV, up 51.5% in shares, while keeping SPYM smaller and slightly trimmed. That’s a deliberate move toward indexed S&P exposure after a three‑year stretch of 22.65% annualized outperformance driven heavily by stock selection.

Under the surface, they are recycling gains from the AI stars and high‑multiple compounders into banks, card networks, healthcare majors, and a clutch of industrial and telecom “tollbooths.” The result is a portfolio that still rides the equity risk premium, but with much less idiosyncratic single‑name blow‑up risk in the hottest parts of tech.

Portfolio concentration
IVV — 43.9% ($29.83B)SPYM — 6.1% ($4.12B)AAPL — 3.9% ($2.63B)AMZN — 3.3% ($2.27B)AMD — 3.3% ($2.26B)NVDA — 2.5% ($1.73B)MU — 2.3% ($1.56B)MSFT — 1.8% ($1.25B)COST — 1.6% ($1.10B)MS — 1.4% ($971.79M)Other — 29.8% ($20.23B)
70%in top 10
  • IVV43.9%
  • SPYM6.1%
  • AAPL3.9%
  • AMZN3.3%
  • AMD3.3%
  • NVDA2.5%
  • MU2.3%
  • MSFT1.8%
  • COST1.6%
  • MS1.4%
  • Other29.8%

Performance History

Performance Metric3-Year Annualized3-Year Cumulative5-Year Annualized5-Year Cumulative
Top 20 Holdings Weighted+22.65%+84.49%+12.45%+79.80%
Top 20 Holdings Unweighted+28.50%+112.19%+15.24%+103.21%

Fund Performance vs S&P 500

Exposure

Sector allocation

Current sector weights across the reported book, with the shift since last quarter.

Unclassified50.0%+4.1%
Technology23.3%−9.6%
Consumer Discretionary6.6%−0.2%
Finance5.4%+2.9%
Health Care5.2%+0.8%
Industrials3.6%+0.6%
Energy2.0%
Consumer Staples1.6%+0.6%
Telecommunications1.1%+0.3%
Miscellaneous0.7%+0.3%
Real Estate0.6%+0.3%

Portfolio

Portfolio allocation

The fund's largest reported positions.

Top Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
IVV
ISHARES-S&P 500
25.17%39.83M$29.83B
+51.54%(+13.55M)
2025-Q2: 21.42M shares2025-Q3: 27.52M shares2025-Q4: 32.45M shares2026-Q1: 26.28M shares2026-Q2: 39.83M shares
$579.68(+34.81%)
2026-06-30
SPYM
SPDR PORTFOLIO L
3.48%46.87M$4.12B
-5.60%(-2.78M)
2025-Q2: 0 shares2025-Q3: 1.18M shares2025-Q4: 0 shares2026-Q1: 49.65M shares2026-Q2: 46.87M shares
$78.16(+17.14%)
2026-06-30
AAPL
APPLE INC
2.22%9.08M$2.63B
+8.36%(+701.20K)
2025-Q2: 9.99M shares2025-Q3: 10.81M shares2025-Q4: 6.66M shares2026-Q1: 8.38M shares2026-Q2: 9.08M shares
$215.12(+41.90%)
2026-06-30
AMZN
AMAZON.COM INC
1.91%9.51M$2.27B
+7.47%(+661.36K)
2025-Q2: 11.79M shares2025-Q3: 10.61M shares2025-Q4: 11.99M shares2026-Q1: 8.85M shares2026-Q2: 9.51M shares
$164.15(+61.51%)
2026-06-30
AMD
ADV MICRO DEVICE
1.91%3.90M$2.26B
+2.80%(+106.22K)
2025-Q2: 7.52M shares2025-Q3: 5.07M shares2025-Q4: 4.74M shares2026-Q1: 3.79M shares2026-Q2: 3.90M shares
$124.49(+287.98%)
2026-06-30
NVDA
NVIDIA CORP
1.46%8.64M$1.73B
-36.79%(-5.03M)
2025-Q2: 13.23M shares2025-Q3: 12.36M shares2025-Q4: 14.46M shares2026-Q1: 13.66M shares2026-Q2: 8.64M shares
$117.22(+92.20%)
2026-06-30
MU
MICRON TECH
1.31%1.35M$1.56B
+49.62%(+447.28K)
2025-Q2: 217.7K shares2025-Q3: 280.0K shares2025-Q4: 722.4K shares2026-Q1: 901.4K shares2026-Q2: 1.35M shares
$379.50(+150.29%)
2026-06-30
MSFT
MICROSOFT CORP
1.05%3.34M$1.25B
-0.90%(-30.17K)
2025-Q2: 5.41M shares2025-Q3: 6.50M shares2025-Q4: 3.75M shares2026-Q1: 3.37M shares2026-Q2: 3.34M shares
$381.27(+30.32%)
2026-06-30
COST
COSTCO WHOLESALE
0.93%1.17M$1.10B
+345.31%(+910.73K)
2025-Q2: 323.5K shares2025-Q3: 91.0K shares2025-Q4: 512.0K shares2026-Q1: 263.7K shares2026-Q2: 1.17M shares
$951.06(+1.13%)
2026-06-30
MS
MORGAN STANLEY
0.82%4.65M$971.8M
+10.76%(+451.58K)
2025-Q2: 2.09M shares2025-Q3: 2.93M shares2025-Q4: 1.73M shares2026-Q1: 4.20M shares2026-Q2: 4.65M shares
$157.46(+38.69%)
2026-06-30

Portfolio changes

What the fund actually did

Every reported change this quarter, grouped by direction. The signal is in the rotation, not any single trade.

Added to
33
IVVISHARES-S&P 500+51.5%
COSTCOSTCO WHOLESALE+345.3%
ABBVABBVIE INC+281757.9%
JPMJP MORGAN CHASE+11481.2%
+29 more
Trimmed
17
NVDANVIDIA CORP-36.8%
SNDKSANDISK CORP-62.9%
INTCINTEL CORP-65.6%
AVGOBROADCOM INC-52.0%
+13 more

Where conviction is rising: S&P beta, banks, and real-economy cash flows

The biggest buy is IVV, with an estimated $10.14B added, cementing the S&P 500 as the portfolio’s anchor. That’s not closet indexing; it’s a funding choice that lets them own the equity market while they actively rotate the satellite positions around it.

Beyond the index, the capital flow is clear: they want scalable, fee‑rich financials and durable cash‑flow franchises.

  • COST: share count up 345.3%, roughly $852.0M added, signaling a full embrace of Costco as a volume‑driven, membership‑moat consumer staple in disguise.
  • ABBV: effectively built from scratch (shares up 281,757.9%) into a $752.5M line, a strong statement that large‑cap pharma still offers mispriced pipelines and cash flows.
  • JPM and BAC: JP Morgan’s stake grows by 11,481.2% and Bank of America by 581.8%, adding about $641.9M and $607.0M respectively; that’s a coordinated bet on scale banks as beneficiaries of higher-for-longer rates and resilient credit.
  • MU and QCOM: Micron (+49.6% shares, +$516.3M) and Qualcomm (+10,156.6% shares, +$454.2M) show that within semis, Marshall Wace is leaning into memory and connectivity, not just GPU headlines.
  • AXP and CME: American Express (+1,033.9%) and CME (+178.7%) are being treated as structural payment and volatility tollbooths, extending the financial-infrastructure theme.

Secondary but telling are big add-ons to IBM, TXN, CSCO, NOK, ADP, UPS, PH, KO, MNST, HOOD, and UBER. The pattern is consistent: real-economy rails, services, and brand moats with credible pricing power, bought in size while the market debates how late the cycle is.

Conviction

The big buys

The biggest dollar adds this quarter — where conviction is rising.

PositionChangePortfolio weightValue
IVVISHARES-S&P 500Added 51.5%+$10.14B25.2%$29.83B
COSTCOSTCO WHOLESALEAdded 345.3%+$852.0M0.9%$1.10B
ABBVABBVIE INCAdded 281757.9%+$752.3M0.6%$752.5M
JPMJP MORGAN CHASEAdded 11481.2%+$641.9M0.6%$647.5M
BACBANK OF AMERICAAdded 581.8%+$607.0M0.6%$711.3M
MUMICRON TECHAdded 49.6%+$516.3M1.3%$1.56B
QCOMQUALCOMM INCAdded 10156.6%+$454.2M0.4%$458.7M
AXPAMERICAN EXPRESSAdded 1033.9%+$440.8M0.4%$483.4M

Dollar changes estimated at current prices (shares added × current price); top-50 current positions only.

What they’re selling: harvesting elite AI and rich winners to pay for breadth

If the buys show what Marshall Wace wants to own, the trims show what they think has done its job. The largest dollar reductions are a who’s‑who of AI and semiconductor leaders — not abandoned, but resized from return engines to funding sources.

  • NVDA: shares cut by 36.8%, freeing about $1.01B while still keeping a 1.46% portfolio stake; this looks like disciplined profit‑taking in a name up 92.2% versus their average cost.
  • SNDK, INTC, AVGO, AMAT: SanDisk (-62.9%), Intel (-65.6%), Broadcom (-52.0%), and Applied Materials (-48.2%) collectively release several billion of estimated capital. They are rotating out of the most crowded, multiple‑rich or fully‑discounted parts of the silicon stack.
  • GOOGL, META, MSFT: Alphabet (-30.2%), Meta (-7.9%), and a small trim in Microsoft (-0.9%) show a cooling of pure mega‑cap growth exposure at the margin, especially where gains versus cost are already large.
  • LLY: Eli Lilly is cut 41.9%, taking profits in a GLP‑1 poster child while simultaneously scaling up other pharma like ABBV, ABT, JNJ, and UNH.
  • CVX and TMUS: Chevron (-39.3%) and T‑Mobile (-10.5%) are bled down, signaling that integrated oil and U.S. wireless are less central to the medium‑term thesis than banks, semis, and diversified healthcare.

Notably, these are trims from strength: gain_vs_avg_buy_pct is comfortably positive across the big tech, semi, and pharma reductions. They’re not capitulating; they’re cashing winning lottery tickets to buy cash machines.

Sector map: tech de‑risked, financials and defensives step up

On a sector level, Marshall Wace is pulling the throttle back on pure tech and redeploying into financials, healthcare, and old‑economy infrastructure. Technology falls from an estimated 32.85% to 23.29% of the portfolio, even as they add heavily to selected names like MU, QCOM, IBM, TXN, CSCO, and NOK.

The real climbers are the financials. Finance jumps from 2.48% to 5.38%, driven by the aggressive builds in MS, BAC, JPM, CME, AXP, and HOOD. That’s a big swing for one quarter in a sector whose earnings power tracks rates, market volumes, and consumer health.

Healthcare edges up from 4.42% to 5.21%, but the mix changes: capital is rotating from momentum‑charged LLY into a basket of diversified pharma and managed care (ABBV, ABT, JNJ, UNH, plus MO via its pseudo‑defensive cash yield). Consumer staples climb from 1.06% to 1.61%, led by KO and MNST, complementing the quasi‑staple COST sitting in consumer discretionary.

Industrials (3.03% to 3.58%) and telecommunications (0.85% to 1.14%) rise via ADP, UPS, PH, CSCO, and increased NOK, reinforcing the “picks and shovels” theme in logistics and networks. Energy, interestingly, is roughly flat at 1.97% despite a huge add to XOM offset by a sharp CVX cut — this is position‑level optimization, not a top‑down oil call.

Overlaying all of this is the giant IVV position, lumped into “Unclassified” at 49.96% from 45.9%. Functionally, that is S&P exposure: sector‑balanced market beta underwriting an increasingly barbell‑shaped set of active tilts.

Reading the playbook: what this quarter implies from here

Taken together, the 2026 Q2 13F says Marshall Wace is less interested in squeezing the last dollar out of AI leaders and more interested in owning the durable economics that will persist once the hype fades. They are using the S&P 500 as a chassis and bolting on high‑conviction overweights in banks, semis, telecom gear, logistics, and big‑cap healthcare.

The internal rotation within technology is particularly telling. Capital is flowing from GPU‑centric narratives (NVDA, AVGO, AMAT, INTC) toward memory (MU), connectivity (QCOM, NOK, CSCO), and legacy tech with cash‑return angles (IBM, TXN, CRM). That reads as a belief that the AI capex cycle is real, but that the best risk‑reward now lies in the broader supply chain and infrastructure, not just the marquee chip names.

At the same time, the aggressive rebuild in JPM, BAC, AXP, CME, and MS suggests they see cyclical fear in financials as overdone. If credit stays contained and rate cuts are measured, these names can compound on volumes, spreads, and fee income without needing heroic growth assumptions.

The modest but deliberate increase in healthcare and staples, plus upgrades to COST, KO, MNST, and defensive pharmas, rounds out the picture: they’re preparing for late‑cycle chop with businesses that can raise prices and keep customers. This is a portfolio re‑engineered for resilience — willing to sacrifice some upside beta for a steadier stream of earnings power tied to real economic activity.

For investors tracking Marshall Wace, the takeaway isn’t a hot stock tip; it’s the template. When a high‑octane stock‑picker who has run at 22.65% annualized over three years starts swapping pure growth for market beta plus cash‑flow moats, it’s a clear signal about where they think the easy money has already been made.

Frequently asked questions

What did Marshall Wace LLP buy in 2026-Q2?+

In 2026 Q2, Marshall Wace’s largest add was IVV, massively expanding its S&P 500 exposure. They also built up big positions in Costco, AbbVie, JP Morgan, Bank of America, Micron, Qualcomm, American Express, CME, and a range of telecom, industrial, and consumer staples names.

What is Marshall Wace LLP’s biggest holding in the latest 13F?+

Marshall Wace’s largest disclosed holding as of 2026 Q2 is IVV, the iShares S&P 500 ETF, at 25.17% of the reported equity portfolio. The second-largest single stock positions are blue-chip tech names like Apple, Amazon, and AMD, each under 2.5% of the book.

How is Marshall Wace LLP changing its technology exposure?+

Marshall Wace reduced overall technology weight from an estimated 32.85% to 23.29%, trimming high‑flyers like Nvidia, Broadcom, Applied Materials, Intel, Alphabet, and Eli Lilly (in healthcare) to fund bigger stakes in Micron, Qualcomm, IBM, Texas Instruments, Cisco, and Nokia. They are shifting from concentrated AI and mega‑cap growth toward a broader mix of semis, connectivity, and legacy cash‑flow tech.

Which sectors is Marshall Wace LLP favoring after 2026-Q2?+

After 2026 Q2, Marshall Wace is clearly favoring financials, healthcare, and consumer defensives on top of its large S&P 500 core. Finance jumped to 5.38% of the book, healthcare to 5.21%, and consumer staples to 1.61%, while technology still remains the single largest active sector exposure despite being trimmed.

Did Marshall Wace LLP reduce its NVIDIA position in 2026-Q2?+

Yes. Marshall Wace cut its Nvidia stake by 36.8% in share terms, realizing an estimated $1.01B in gains versus their average cost, but they still hold Nvidia at 1.46% of the portfolio. This looks like disciplined profit‑taking rather than a full exit.

Is Marshall Wace LLP becoming more of an index investor?+

The firm isn’t abandoning stock‑picking, but its 2026 Q2 moves show a clear decision to run a very large S&P 500 core via IVV while expressing views at the margin in sectors like banks, semis, telecom equipment, logistics, and big‑cap healthcare. It’s closer to a barbell of market beta plus concentrated thematic tilts than to pure active stock‑picking.

Source filings

Holdings on this page are parsed from Marshall Wace LLP’s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1318757). View Marshall Wace LLP’s 13F filings on SEC

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