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 | |
|---|---|---|---|---|---|---|---|
76
Strategy Inc
MSTR
$57.4B
| $16.1M | 0.21% |
+185,641
| New | +$26.9M |
2026 Q2
0 quarters
|
|
77
Boston Scientific
BSX
$63B
| $15.8M | 0.21% |
+370,643
| New | +$20.1M |
2026 Q2
0 quarters
|
|
78
Wells Fargo
WFC
$257B
| $15.7M | 0.21% |
+190,536
| New | +$15.3M |
2026 Q2
0 quarters
|
|
79
AstraZeneca
AZN
$285B
| $15M | 0.2% |
80,256
-4,864
| -6% | -$915K |
2026 Q1
1 quarter
|
|
80
Caesars Entertainment
CZR
$5.91B
| $14.9M | 0.2% |
493,803
-1,469,449
| -75% | -$41.4M |
2021 Q2
20 quarters
|
|
81
Walmart Inc
WMT
$991B
| $14.9M | 0.2% |
+131,294
| New | +$16.3M |
2026 Q2
0 quarters
|
|
82
Ingersoll Rand
IR
$32.5B
| $14.8M | 0.2% |
180,888
+172,746
| +2,122% | +$13.4M |
2020 Q1
25 quarters
|
|
83
Micron Technology
MU
$967B
| $14.3M | 0.19% |
+12,382
| New | +$9.29M |
2026 Q2
0 quarters
|
|
84
Enova International
ENVA
$4.25B
| $14.2M | 0.19% |
58,891
-6,909
| -11% | -$1.19M |
2025 Q3
3 quarters
|
|
85
Workday
WDAY
$47.7B
| $14M | 0.19% |
114,033
+11,173
| +11% | +$1.42M |
2019 Q2
28 quarters
|
|
86
EQT Corp
EQT
$33.9B
| $13.8M | 0.18% |
+259,539
| New | +$14.6M |
2026 Q2
0 quarters
|
|
87
Bank of New York Mellon
BNY
$100B
| $13.8M | 0.18% |
95,321
+53,511
| +128% | +$7.32M |
2022 Q3
15 quarters
|
|
88
Semtech
SMTC
$11.9B
| $13.5M | 0.18% |
+83,499
| New | +$10.9M |
2026 Q2
0 quarters
|
|
89
Lam Research
LRCX
$289B
| $13.4M | 0.18% |
+30,879
| New | +$9.37M |
2026 Q2
0 quarters
|
|
90
Salesforce
CRM
$183B
| $13.3M | 0.18% |
85,118
+69,312
| +439% | +$12.2M |
2018 Q4
30 quarters
|
|
91
Amgen
AMGN
$249B
| $13.1M | 0.17% |
36,294
-77,201
| -68% | -$26.4M |
2019 Q2
28 quarters
|
|
92
Idexx Laboratories
IDXX
$52.9B
| $12.8M | 0.17% |
24,303
+16,966
| +231% | +$9.5M |
2019 Q2
28 quarters
|
|
93
AbbVie
ABBV
$505B
| $12.7M | 0.17% |
50,502
-109,260
| -68% | -$23.5M |
2019 Q2
28 quarters
|
|
94
Qualcomm
QCOM
$176B
| $12.5M | 0.17% |
+67,487
| New | +$12.6M |
2026 Q2
0 quarters
|
|
95
Mastercard
MA
$564B
| $12.1M | 0.16% |
23,640
-4,427
| -16% | -$2.21M |
2018 Q4
30 quarters
|
|
96
Johnson Controls International
JCI
$90.8B
| $11.9M | 0.16% |
81,722
+80,546
| +6,849% | +$11.4M |
2024 Q4
6 quarters
|
|
97
Western Digital
WDC
$130B
| $11.9M | 0.16% |
+18,604
| New | +$9.05M |
2026 Q2
0 quarters
|
|
98
Palo Alto Networks
PANW
$287B
| $11.8M | 0.16% |
+34,635
| New | +$7.93M |
2026 Q2
0 quarters
|
|
99
Merck
MRK
$357B
| $11.8M | 0.16% |
91,787
+30,288
| +49% | +$3.55M |
2018 Q4
30 quarters
|
|
100
ResMed
RMD
$31.9B
| $11.8M | 0.16% |
+60,406
| New | +$12.5M |
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.