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Robeco Institutional Asset Management 13F Portfolio

Portfolio Manager
Robeco Institutional Asset Management B.V.
Performance
+15.34% (2026 Q2)
AUM (13F)
$81.42B
# of Holdings
837
Performance Rank
Allocation (Top 20)
39.29%
Latest filing
Q2 2026

2026 Q2 · 13F Analysis

Seven AI Hardware Names Now Command 18% of Robeco Institutional’s Book

Published August 30, 2026 · Based on the SEC 13F filing for 2026 Q2

Key takeaways

  • Pushes deeper into AI hardware, from GPUs to tools and memory
  • Shifts capital from legacy data center plumbing into AI tooling leaders
  • Pairs megacap platform strength with selective emerging market cyclicality
  • Builds a second growth pillar in pharma and obesity drugs
  • Adds quality defensives like Coca-Cola as AI gains compound

The thesis in one look

Robeco Institutional is no longer treating AI as a style factor; it is the book. Technology stands at 62.49% of disclosed equity exposure, and roughly a third of that is concentrated in AI engines and their immediate suppliers.

The top of the book is a familiar four-pack — Nvidia at 6.57%, Apple at 5.23%, Alphabet (both share classes) at a combined 5.5%+, and Microsoft at 3.41%. What matters is not that they’re there, but that Robeco is still adding into outsized gains, increasing all four again despite gain_vs_avg_buy_pct figures from +94.5% at Microsoft to +366.8% at Nvidia.

Beneath the flagships, the real story is the build‑out of the AI hardware stack. Positions like Broadcom, Micron, Applied Materials, AMD, TSMC, Intel and KLA together now form an 18%+ cluster tightly linked to AI compute and memory. The 15.34% latest‑quarter performance suggests this concentration is working, and the marginal dollar is still flowing into that same theme rather than into new categories.

Portfolio concentration
NVDA — 11.7% ($5.35B)AAPL — 9.3% ($4.26B)GOOGL — 7.3% ($3.34B)MSFT — 6.1% ($2.78B)AMZN — 5.0% ($2.26B)AVGO — 3.7% ($1.71B)AMAT — 3.1% ($1.42B)MU — 2.6% ($1.18B)GOOG — 2.5% ($1.13B)JPM — 2.1% ($979.10M)Other — 46.4% ($21.14B)
54%in top 10
  • NVDA11.7%
  • AAPL9.3%
  • GOOGL7.3%
  • MSFT6.1%
  • AMZN5.0%
  • AVGO3.7%
  • AMAT3.1%
  • MU2.6%
  • GOOG2.5%
  • JPM2.1%
  • Other46.4%

Performance History

Performance Metric3-Year Annualized3-Year Cumulative5-Year Annualized5-Year Cumulative
Top 20 Holdings Weighted+23.17%+86.86%+12.90%+83.42%
Top 20 Holdings Unweighted+19.95%+72.56%+10.67%+66.04%

Fund Performance vs S&P 500

Exposure

Sector allocation

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

Technology62.5%−0.6%
Finance10.3%
Health Care6.9%+0.2%
Consumer Discretionary6.4%+0.3%
Industrials3.7%+0.6%
Telecommunications2.8%−0.6%
Real Estate2.5%−0.2%
Unclassified2.4%
Basic Materials1.7%−0.1%
Consumer Staples0.9%+0.3%

Portfolio

Portfolio allocation

The fund's largest reported positions.

Top Holdings

Top 10 holdings

StockCompany% Port.SharesValueActivityOwnershipAvg. CostDate
NVDA
NVIDIA CORPORATION
6.57%26.73M$5.35B
+1.87%(+490.02K)
2025-Q2: 23.98M shares2025-Q3: 24.70M shares2025-Q4: 24.94M shares2026-Q1: 26.24M shares2026-Q2: 26.73M shares
$47.22(+378.71%)
2026-06-30
AAPL
APPLE INC
5.23%14.72M$4.26B
+2.83%(+404.36K)
2025-Q2: 13.14M shares2025-Q3: 13.25M shares2025-Q4: 13.29M shares2026-Q1: 14.31M shares2026-Q2: 14.72M shares
$119.45(+155.65%)
2026-06-30
GOOGL
ALPHABET INC
4.11%9.36M$3.34B
+2.81%(+255.63K)
2025-Q2: 8.57M shares2025-Q3: 8.86M shares2025-Q4: 9.21M shares2026-Q1: 9.10M shares2026-Q2: 9.36M shares
$105.67(+226.21%)
2026-06-30
MSFT
MICROSOFT CORP
3.41%7.45M$2.78B
+1.90%(+138.67K)
2025-Q2: 7.13M shares2025-Q3: 7.87M shares2025-Q4: 7.95M shares2026-Q1: 7.31M shares2026-Q2: 7.45M shares
$258.44(+88.08%)
2026-06-30
AMZN
AMAZON COM INC
2.78%9.48M$2.26B
+12.52%(+1.06M)
2025-Q2: 7.56M shares2025-Q3: 8.53M shares2025-Q4: 9.14M shares2026-Q1: 8.43M shares2026-Q2: 9.48M shares
$140.03(+87.48%)
2026-06-30
AVGO
BROADCOM INC
2.1%4.52M$1.71B
+15.46%(+605.48K)
2025-Q2: 3.44M shares2025-Q3: 3.58M shares2025-Q4: 3.51M shares2026-Q1: 3.92M shares2026-Q2: 4.52M shares
$151.40(+160.07%)
2026-06-30
AMAT
APPLIED MATLS INC
1.74%1.96M$1.42B
+11.71%(+205.83K)
2025-Q2: 1.20M shares2025-Q3: 1.63M shares2025-Q4: 1.47M shares2026-Q1: 1.76M shares2026-Q2: 1.96M shares
$220.92(+140.72%)
2026-06-30
MU
MICRON TECHNOLOGY INC
1.45%1.02M$1.18B
+5.23%(+50.83K)
2025-Q2: 154.8K shares2025-Q3: 896.1K shares2025-Q4: 696.4K shares2026-Q1: 972.2K shares2026-Q2: 1.02M shares
$215.90(+370.03%)
2026-06-30
GOOG
ALPHABET INC
1.39%3.21M$1.13B
+0.71%(+22.71K)
2025-Q2: 2.58M shares2025-Q3: 2.66M shares2025-Q4: 2.88M shares2026-Q1: 3.19M shares2026-Q2: 3.21M shares
$131.95(+159.68%)
2026-06-30
JPM
JPMORGAN CHASE & CO
1.2%2.99M$979.1M
-0.51%(-15.26K)
2025-Q2: 3.69M shares2025-Q3: 3.79M shares2025-Q4: 3.78M shares2026-Q1: 3.01M shares2026-Q2: 2.99M shares
$167.45(+117.81%)
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
34
KLACKLA CORP+783.3%
CMICUMMINS INC+111.5%
AMZNAMAZON COM INC+12.5%
AVGOBROADCOM INC+15.5%
+30 more
Trimmed
16
WDCWESTERN DIGITAL CORP-36.0%
CSCOCISCO SYS INC-14.8%
LRCXLAM RESEARCH CORP-10.9%
JBLJABIL INC-20.5%
+12 more

Where conviction is rising: from GPUs to tools, banks and staples

The biggest buys table reads like a shopping list for an AI super‑cycle and a late‑cycle macro hedge. The standout is KLA, where Robeco increased shares +783.3%, lifting the stake to $808.9M and accepting a current mark of -72.6% vs its avg_buy_price. That’s not averaging down for optics; that’s a high‑conviction call that leading-edge process control is mispriced.

Other notable adds deepen the AI toolkit:

  • Broadcom: a +15.5% share increase and +$228.7M in value, reinforcing a bet on networking and custom accelerators as AI workloads scale.
  • Applied Materials: +11.7% in shares and +$148.8M, backing capacity growth in wafer fab equipment.
  • Intel: +73.9% in shares, +$222.4M in value, signaling belief in a manufacturing and foundry comeback despite it being up 75.1% vs cost.
  • Amazon: +12.5% in shares and +$251.5M, a pure expression of confidence in cloud AI monetization and retail leverage.

The fund is also arming up in financials and defensives. Morgan Stanley’s stake is up +143.2% (+$225.7M), Coca‑Cola is up +74.6% (+$170.9M), and Cummins is more than doubled (+111.5%, +$362.7M). That mix says they are preparing for higher capital‑markets activity and infrastructure demand, but want a ballast of consumer staples while they keep the accelerator down on AI.

Conviction

The big buys

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

PositionChangePortfolio weightValue
KLACKLA CORPAdded 783.3%+$717.3M1.0%$808.9M
CMICUMMINS INCAdded 111.5%+$362.7M0.8%$688.0M
AMZNAMAZON COM INCAdded 12.5%+$251.5M2.8%$2.26B
AVGOBROADCOM INCAdded 15.5%+$228.7M2.1%$1.71B
MSMORGAN STANLEYAdded 143.2%+$225.7M0.5%$383.3M
INTCINTEL CORPAdded 73.9%+$222.4M0.6%$523.4M
KOCOCA COLA COAdded 74.6%+$170.9M0.5%$399.8M
AMATAPPLIED MATLS INCAdded 11.7%+$148.8M1.7%$1.42B

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

What they are selling to pay for it: legacy plumbing and fully valued winners

Funding for these adds is coming from a clear set of profit‑harvests and de‑prioritized names. Western Digital is the largest dollar trim, with shares cut -36.0% and value reduced by $226.1M, despite a massive +328.6% gain_vs_avg_buy_pct. That looks like a textbook recycle from a volatile memory/storage beta play into higher‑quality semis and equipment.

Networking and data‑center plumbing are also being tapped as sources:

  • Cisco: shares down -14.8%, freeing up $111.5M, even as the position still sits on a +126.8% gain.
  • Arista Networks: -6.5% in shares and -$43.3M in value, again taking profits in a big AI‑adjacent winner (+114.5% vs cost).
  • Vertiv: -6.9% in shares and -$47.3M, trimming after a near‑doubling from cost.

Lam Research is an interesting nuance: a -10.9% trim (-$97.4M) after a +287.0% run, even as KLA is aggressively increased. Robeco seems to be upgrading within the semicap complex, preferring KLA at a drawdown to Lam at strength. In payments, Mastercard is shaved -13.4% (-$75.6M) while Visa is increased, suggesting a mild relative preference within a sector they still want, just at a slightly lower overall weight.

How exposure is rotating: AI still dominant, but breadth and ballast are rising

At the sector level, this is a tweak, not a regime change. Technology barely budged, slipping from an estimated 63.1% to 62.49%, but the internal mix is sharper: more semicap and compute, less generic networking and contract electronics.

The winners of this intra‑tech reshuffle are the AI enablers. Adds to KLA, Applied Materials, AMD, Analog Devices, TSMC, Intel and Palo Alto Networks offset trims to Western Digital, Jabil, Cisco, Arista, Vertiv and Lam. Health care quietly inches up from 6.74% to 6.94% on meaningful adds to Eli Lilly (+16.2%), AbbVie (+9.7%), Johnson & Johnson (+14.2%), Gilead and Bristol Myers — effectively constructing a second secular‑growth and cash‑flow pillar around pharmaceuticals and obesity/oncology pipelines.

Cyclicals are being curated rather than abandoned. Industrials climb from 3.05% to 3.69% via bigger stakes in Cummins (+111.5%) and Rockwell Automation (+11.7%), paired with a marginal Tesla trim. Consumer discretionary nudges up from 6.11% to 6.42% on higher Amazon, United Rentals and Costco. Meanwhile, telecom‑classified networking (Cisco, Arista) drops from 3.36% to 2.77%, and payments‑labeled real estate edges down. The most conspicuous new ballast is consumer staples: Coca‑Cola’s larger position lifts that sector from 0.54% to 0.88%.

What this portfolio implies about Robeco’s forward view

Viewed holistically, Robeco’s 2026‑Q2 moves assume the AI capex wave is closer to the middle innings than the late ones. They are willing to buy KLA at a deep mark‑to‑market loss and keep adding to Nvidia, Broadcom, Micron and Applied Materials after enormous gains, which says they see long‑duration earnings power still under‑discounted.

Simultaneously, the book is being fortified for a choppier macro tape. Larger positions in Morgan Stanley, Bank of America, Coca‑Cola, Cummins, Rockwell, Costco and Travelers hint at an expectation of ongoing nominal growth, decent credit conditions, and robust industrial and infrastructure spending — but not without volatility. The more defensive health‑care buildout and staples adds give them cover to ride through corrections in the AI complex.

Emerging‑market cyclicality remains part of the playbook, but tightly scoped. Robeco is increasing exposure to Brazilian oil (Petrobras), metals (Vale) and Indian/EM banks (ICICI, HDFC) while trimming Itaú and Newmont. That combination, alongside a still‑high 30.0% top‑10 concentration and an 86.9% 3‑year weighted cumulative return, suggests they are betting their edge is in owning the core of global growth — AI, select pharma and quality financials — and letting the rest of the portfolio simply not get in the way.

Frequently asked questions

What did Robeco Institutional Asset Management B.V. buy in 2026-Q2?+

In 2026‑Q2, Robeco Institutional notably increased positions in KLA, Cummins, Amazon, Broadcom, Morgan Stanley, Intel, Coca‑Cola and Applied Materials, with a clear focus on AI semicap, industrial machinery, financials and defensive consumer staples.

What is Robeco Institutional Asset Management B.V.'s biggest holding?+

As of the 2026‑Q2 13F, Nvidia is the largest disclosed position at 6.57% of the reported equity book, followed by Apple, Alphabet and Microsoft.

How is Robeco Institutional Asset Management B.V. positioned toward AI and semiconductors?+

Robeco has a heavy AI and semiconductor tilt, with technology at 62.49% of the book and substantial stakes across Nvidia, Broadcom, Micron, AMD, TSMC, Intel, KLA and Applied Materials, indicating strong conviction in the durability of AI‑driven demand.

Which stocks did Robeco Institutional Asset Management B.V. sell or reduce in 2026-Q2?+

The fund’s largest trims were Western Digital, Cisco, Lam Research, Jabil, Mastercard, Itaú Unibanco, Vertiv and Arista Networks, mainly crystallizing gains in data‑center plumbing, storage and payments to fund higher‑conviction ideas.

Did Robeco Institutional Asset Management B.V. change its sector allocation in 2026-Q2?+

Sector weights shifted only modestly: technology stayed dominant, while health care, consumer discretionary, industrials and consumer staples ticked up slightly, and telecom‑classified networking, real estate‑classified payments and basic materials edged lower.

How did Robeco Institutional Asset Management B.V. perform around 2026-Q2?+

The weighted portfolio returned 15.34% in 2026‑Q2, with 3‑year weighted annualized performance at 23.17% and cumulative 3‑year performance at 86.86%, reflecting strong results from its growth‑tilted positioning.

Source filings

Holdings on this page are parsed from Robeco Institutional Asset Management B.V.’s Form 13F filings with the U.S. Securities and Exchange Commission (CIK 1418773). View Robeco Institutional Asset Management B.V.’s 13F filings on SEC

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