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 | |
|---|---|---|---|---|---|---|---|
251
Dollar Tree
DLTR
$27.4B
| $2.61M | 0.03% |
+21,553
| New | +$2.24M |
2026 Q2
0 quarters
|
|
252
S&P Global
SPGI
$140B
| $2.59M | 0.03% |
6,361
-89,395
| -93% | -$37.8M |
2019 Q1
29 quarters
|
|
253
Automatic Data Processing
ADP
$120B
| $2.58M | 0.03% |
11,526
+1,370
| +13% | +$293K |
2019 Q2
28 quarters
|
|
254
NetApp
NTAP
$37.2B
| $2.58M | 0.03% |
16,676
-5,101
| -23% | -$667K |
2021 Q1
21 quarters
|
|
255
Sherwin-Williams
SHW
$87.6B
| $2.56M | 0.03% |
+7,435
| New | +$2.38M |
2026 Q2
0 quarters
|
|
256
Palomar
PLMR
$3.78B
| $2.55M | 0.03% |
20,200
| – | – |
2025 Q3
3 quarters
|
|
257
Southern Copper
SCCO
$150B
| $2.55M | 0.03% |
14,967
+9,098
| +155% | +$1.62M |
2023 Q1
13 quarters
|
|
258
Insulet
PODD
$11.1B
| $2.54M | 0.03% |
16,715
+14,509
| +658% | +$2.42M |
2022 Q3
15 quarters
|
|
259
Teva Pharmaceutical Industries Limited
TEVA
$48.6B
| $2.51M | 0.03% |
+74,058
| New | +$2.47M |
2026 Q2
0 quarters
|
|
260
PPL Corp
PPL
$27B
| $2.51M | 0.03% |
+68,980
| New | +$2.55M |
2026 Q2
0 quarters
|
|
261
Textron
TXT
$14.7B
| $2.44M | 0.03% |
+26,613
| New | +$2.42M |
2026 Q2
0 quarters
|
|
262
ServiceNow
NOW
$113B
| $2.41M | 0.03% |
24,254
+388
| +2% | +$38.4K |
2019 Q2
28 quarters
|
|
263
Xylem
XYL
$23.4B
| $2.38M | 0.03% |
20,170
+19,191
| +1,960% | +$2.22M |
2018 Q4
30 quarters
|
|
264
DexCom
DXCM
$32.8B
| $2.34M | 0.03% |
+34,769
| New | +$2.32M |
2026 Q2
0 quarters
|
|
265
Jabil
JBL
$26.4B
| $2.33M | 0.03% |
+6,053
| New | +$2.09M |
2026 Q2
0 quarters
|
|
266
Datadog
DDOG
$67.8B
| $2.33M | 0.03% |
8,939
-94,635
| -91% | -$17.6M |
2021 Q4
18 quarters
|
|
267
Pilgrim's Pride
PPC
$6.86B
| $2.33M | 0.03% |
82,715
| – | – |
2026 Q1
1 quarter
|
|
268
Chubb
CB
$142B
| $2.32M | 0.03% |
6,817
+447
| +7% | +$146K |
2018 Q4
30 quarters
|
|
269
Ecolab
ECL
$88B
| $2.31M | 0.03% |
+8,303
| New | +$2.19M |
2026 Q2
0 quarters
|
|
270
BioMarin Pharmaceuticals
BMRN
$11B
| $2.31M | 0.03% |
40,357
+18,528
| +85% | +$1.01M |
2019 Q2
28 quarters
|
|
271
DELISTED
Taylor Morrison
TMHC
| $2.28M | 0.03% |
31,800
| – | – |
2025 Q3
3 quarters
|
|
272
Prologis
PLD
$123B
| $2.27M | 0.03% |
16,787
+1,757
| +12% | +$249K |
2019 Q1
29 quarters
|
|
273
Blue Owl Capital
OWL
$7.32B
| $2.27M | 0.03% |
259,625
+204,093
| +368% | +$1.94M |
2022 Q3
15 quarters
|
|
274
Corteva
CTVA
$8.03B
| $2.27M | 0.03% |
26,791
+12,233
| +84% | +$982K |
2022 Q3
15 quarters
|
|
275
CVS Health
CVS
$102B
| $2.24M | 0.03% |
+21,676
| New | +$1.93M |
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.