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 | |
|---|---|---|---|---|---|---|---|
351
M&T Bank
MTB
$32.3B
| $1.41M | 0.02% |
5,914
+5,600
| +1,783% | +$1.22M |
2021 Q4
18 quarters
|
|
352
McDonald's
MCD
$198B
| $1.39M | 0.02% |
+5,136
| New | +$1.47M |
2026 Q2
0 quarters
|
|
353
Axcelis
ACLS
$2.85B
| $1.38M | 0.02% |
7,276
-33,424
| -82% | -$4.96M |
2025 Q3
3 quarters
|
|
354
Talen Energy Corp
TLN
$15.5B
| $1.37M | 0.02% |
3,576
| – | – |
2025 Q4
2 quarters
|
|
355
Public Storage
PSA
$64B
| $1.36M | 0.02% |
4,276
-510
| -11% | -$156K |
2018 Q4
30 quarters
|
|
356
Stellantis
STLA
$13.5B
| $1.35M | 0.02% |
237,792
+36,065
| +18% | +$267K |
2021 Q2
20 quarters
|
|
357
Shopify
SHOP
$197B
| $1.34M | 0.02% |
11,677
-218,603
| -95% | -$24.9M |
2022 Q3
15 quarters
|
|
358
Illumina
ILMN
$34.3B
| $1.33M | 0.02% |
+7,584
| New | +$1.11M |
2026 Q2
0 quarters
|
|
359
Nike
NKE
$60.1B
| $1.32M | 0.02% |
+32,166
| New | +$1.41M |
2026 Q2
0 quarters
|
|
360
Expeditors International
EXPD
$25.7B
| $1.32M | 0.02% |
+8,083
| New | +$1.25M |
2026 Q2
0 quarters
|
|
361
Arthur J. Gallagher & Co
AJG
$73.9B
| $1.32M | 0.02% |
+5,737
| New | +$1.22M |
2026 Q2
0 quarters
|
|
362
United Parcel Service
UPS
$97.3B
| $1.31M | 0.02% |
+12,188
| New | +$1.27M |
2026 Q2
0 quarters
|
|
363
NXP Semiconductors
NXPI
$66.8B
| $1.31M | 0.02% |
4,647
-314,471
| -99% | -$86.7M |
2021 Q2
20 quarters
|
|
364
Natera
NTRA
$56.4B
| $1.29M | 0.02% |
+4,770
| New | +$1.02M |
2026 Q2
0 quarters
|
|
365
DELISTED
AvalonBay Communities
AVB
| $1.29M | 0.02% |
6,858
+374
| +6% | +$67.6K |
2021 Q2
20 quarters
|
|
366
Jefferies Financial Group
JEF
$11.8B
| $1.29M | 0.02% |
25,853
+10,594
| +69% | +$546K |
2026 Q1
1 quarter
|
|
367
Extra Space Storage
EXR
$33.6B
| $1.28M | 0.02% |
8,802
+353
| +4% | +$50.5K |
2021 Q2
20 quarters
|
|
368
Penumbra
PEN
$12.7B
| $1.26M | 0.02% |
3,984
-4,092
| -51% | -$1.33M |
2026 Q1
1 quarter
|
|
369
MACOM Technology Solutions
MTSI
$17.8B
| $1.26M | 0.02% |
3,305
-32,132
| -91% | -$10.7M |
2025 Q3
3 quarters
|
|
370
DELISTED
Liberty Broadband Class C
LBRDK
| $1.25M | 0.02% |
+37,600
| New | +$1.47M |
2026 Q2
0 quarters
|
|
371
Nasdaq
NDAQ
$61.3B
| $1.25M | 0.02% |
+15,824
| New | +$1.39M |
2026 Q2
0 quarters
|
|
372
Hasbro
HAS
$17B
| $1.25M | 0.02% |
+15,082
| New | +$1.36M |
2026 Q2
0 quarters
|
|
373
Cardinal Health
CAH
$60.7B
| $1.22M | 0.02% |
5,144
-813
| -14% | -$169K |
2022 Q3
15 quarters
|
|
374
Dauch Corp
DCH
$1.14B
| $1.22M | 0.02% |
+224,576
| New | +$1.36M |
2026 Q2
0 quarters
|
|
375
Zoetis
ZTS
$36.9B
| $1.22M | 0.02% |
16,929
+3,004
| +22% | +$283K |
2019 Q2
28 quarters
|
|
Similar funds
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.