Ossiam Portfolio holdings
Ossiam is a Paris-based Natixis Investment Managers affiliate that builds ETFs and funds on rules-based, research-driven strategies. Its range covers index trackers, long-only funds that weight stocks differently from market-cap indexes, and long/short funds aiming to be market-neutral. Four of its ETFs, listed on several European exchanges in 2011, followed equal-weight and minimum-variance strategies, the latter meant to lower risk. Bruno Poulin, who co-founded the firm, is its chief executive.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Vanguard S&P 500 ETF
VOO
|
+$367M |
| 2 |
State Street SPDR Portfolio S&P 500 ETF
SPYM
|
+$353M |
| 3 |
NVIDIA
NVDA
|
+$184M |
| 4 |
Intel
INTC
|
+$173M |
| 5 |
Microsoft
MSFT
|
+$123M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Advanced Micro Devices
AMD
|
+$1.41B |
| 2 |
Broadcom
AVGO
|
+$283M |
| 3 |
Berkshire Hathaway Class B
BRK.B
|
+$156M |
| 4 |
Tesla
TSLA
|
+$129M |
| 5 |
Amazon
AMZN
|
+$100M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 37.02% |
| 2 | Miscellaneous | 18.72% |
| 3 | Financials | 12.19% |
| 4 | Consumer Discretionary | 12.13% |
| 5 | Healthcare | 7.49% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
376
Icon
ICLR
$15.2B
| $1.21M | 0.02% |
6,984
-1,137
| -14% | -$145K |
2023 Q1
13 quarters
|
|
377
Williams-Sonoma
WSM
$31.8B
| $1.2M | 0.02% |
+5,151
| New | +$1.02M |
2026 Q2
0 quarters
|
|
378
Agilent Technologies
A
$49.9B
| $1.2M | 0.02% |
9,021
-1,537
| -15% | -$187K |
2020 Q3
23 quarters
|
|
379
Boston Beer
SAM
$2.32B
| $1.19M | 0.02% |
+6,720
| New | +$1.36M |
2026 Q2
0 quarters
|
|
380
Grand Canyon Education
LOPE
$3.93B
| $1.18M | 0.02% |
8,260
-1,500
| -15% | -$238K |
2025 Q4
2 quarters
|
|
381
Freeport-McMoran
FCX
$89.9B
| $1.17M | 0.02% |
18,657
-281,616
| -94% | -$18.1M |
2023 Q1
13 quarters
|
|
382
Truist Financial
TFC
$61B
| $1.17M | 0.02% |
23,499
-706,595
| -97% | -$34.8M |
2020 Q2
24 quarters
|
|
383
Jacobs Solutions
J
$18.7B
| $1.16M | 0.02% |
9,206
+418
| +5% | +$51.4K |
2025 Q3
3 quarters
|
|
384
Qiagen
QGEN
$10.5B
| $1.15M | 0.02% |
29,716
+18,589
| +167% | +$690K |
2026 Q1
1 quarter
|
|
385
Waste Connections
WCN
$48B
| $1.15M | 0.02% |
6,907
+447
| +7% | +$70.8K |
2022 Q3
15 quarters
|
|
386
Roper Technologies
ROP
$48.7B
| $1.15M | 0.02% |
+3,388
| New | +$1.16M |
2026 Q2
0 quarters
|
|
387
Live Nation Entertainment
LYV
$42.7B
| $1.14M | 0.02% |
+6,206
| New | +$1.02M |
2026 Q2
0 quarters
|
|
388
EOG Resources
EOG
$77.1B
| $1.14M | 0.02% |
8,759
-220,538
| -96% | -$30M |
2025 Q4
2 quarters
|
|
389
Reinsurance Group of America
RGA
$17.4B
| $1.14M | 0.02% |
+5,340
| New | +$1.11M |
2026 Q2
0 quarters
|
|
390
Dropbox
DBX
$7.85B
| $1.13M | 0.02% |
+41,062
| New | +$1.06M |
2026 Q2
0 quarters
|
|
391
Ubiquiti
UI
$33.9B
| $1.13M | 0.01% |
2,110
-378
| -15% | -$285K |
2025 Q3
3 quarters
|
|
392
T. Rowe Price
TROW
$24B
| $1.11M | 0.01% |
9,772
-867
| -8% | -$88.7K |
2022 Q3
15 quarters
|
|
393
Waters Corp
WAT
$45.9B
| $1.1M | 0.01% |
+2,938
| New | +$1M |
2026 Q2
0 quarters
|
|
394
Dutch Bros
BROS
$6.07B
| $1.09M | 0.01% |
15,149
-178,218
| -92% | -$10.2M |
2025 Q2
4 quarters
|
|
395
Veralto
VLTO
$28.5B
| $1.08M | 0.01% |
12,192
+3,100
| +34% | +$269K |
2024 Q3
7 quarters
|
|
396
SBA Communications
SBAC
$20.7B
| $1.08M | 0.01% |
6,108
+939
| +18% | +$194K |
2021 Q4
18 quarters
|
|
397
Martin Marietta Materials
MLM
$39.5B
| $1.06M | 0.01% |
+1,841
| New | +$1.09M |
2026 Q2
0 quarters
|
|
398
Air Products & Chemicals
APD
$71B
| $1.06M | 0.01% |
3,599
+3,344
| +1,311% | +$973K |
2019 Q2
28 quarters
|
|
399
IQVIA
IQV
$43.5B
| $1.05M | 0.01% |
5,459
-251
| -4% | -$43.8K |
2021 Q2
20 quarters
|
|
400
Cincinnati Financial
CINF
$29.2B
| $1.05M | 0.01% |
+5,676
| New | +$941K |
2026 Q2
0 quarters
|
|
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Ossiam's Q2 2026 Portfolio in Review
As of Q2 2026, Ossiam held 721 positions worth $7.54B, up 33% from $5.69B the previous quarter. Its ten largest holdings account for 45% of the portfolio.
Ossiam's Q2 2026 filing shows 333 new, 144 increased, 172 reduced and 41 closed positions. Its largest new stake was Vanguard S&P 500 ETF: 550,000 shares worth $378M. The largest sale was Advanced Micro Devices, an estimated $1.41B.
By sector, the portfolio is most concentrated in Technology at 37% of assets, down from 43% a quarter earlier, followed by Miscellaneous and Financials.
- Ossiam's largest Q2 2026 buy was Vanguard S&P 500 ETF: 550,000 shares worth $378M.
- Ossiam added most to State Street SPDR Portfolio S&P 500 ETF in Q2 2026, an estimated $353M increase.
- Ossiam's biggest Q2 2026 reduction was Advanced Micro Devices, cutting an estimated $1.41B.
- Ossiam fully exited Roku in Q2 2026, selling an estimated $43.6M.
- Ossiam's ten largest holdings make up 45% of its $7.54B portfolio in Q2 2026.
- Ossiam opened 333 new positions and closed 41 in Q2 2026.
- Ossiam's portfolio value rose 33% quarter-over-quarter to $7.54B.
Based on Ossiam's 13F filing for Q2 2026, filed 13 Aug 2026.