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 | |
|---|---|---|---|---|---|---|---|
26
Robinhood
HOOD
$77.9B
| $43.5M | 0.58% |
+434,053
| New | +$36.3M |
2026 Q2
0 quarters
|
|
27
Alphabet (Google) Class A
GOOGL
$3.62T
| $43.4M | 0.58% |
121,316
-48,185
| -28% | -$17.3M |
2018 Q4
30 quarters
|
|
28
CrowdStrike
CRWD
$248B
| $42.2M | 0.56% |
221,088
-279,820
| -56% | -$39.8M |
2022 Q1
17 quarters
|
|
29
Home Depot
HD
$348B
| $41.7M | 0.55% |
+118,117
| New | +$38.4M |
2026 Q2
0 quarters
|
|
30
Flutter Entertainment
FLUT
$14.9B
| $41.3M | 0.55% |
404,177
+395,510
| +4,563% | +$40.8M |
2024 Q1
9 quarters
|
|
31
Teradyne
TER
$39.1B
| $39.7M | 0.53% |
+82,135
| New | +$31M |
2026 Q2
0 quarters
|
|
32
Ulta Beauty
ULTA
$28.2B
| $39.6M | 0.53% |
87,772
+121
| +0.1% | +$61.4K |
2022 Q3
15 quarters
|
|
|
33
Broadcom
AVGO
$1.55T
| $38.2M | 0.51% |
101,008
-705,187
| -87% | -$283M |
2022 Q2
16 quarters
|
|
34
Airbnb
ABNB
$105B
| $38.1M | 0.51% |
266,067
+16,938
| +7% | +$2.31M |
2022 Q2
16 quarters
|
|
35
Charles Schwab
SCHW
$160B
| $37.2M | 0.49% |
+402,935
| New | +$36.7M |
2026 Q2
0 quarters
|
|
36
Meta Platforms (Facebook)
META
$1.65T
| $35.9M | 0.48% |
63,661
+20,785
| +48% | +$12.7M |
2018 Q4
30 quarters
|
|
37
Lumentum
LITE
$55B
| $35.8M | 0.47% |
41,728
+2,503
| +6% | +$2.23M |
2026 Q1
1 quarter
|
|
38
Texas Instruments
TXN
$282B
| $34.7M | 0.46% |
+116,422
| New | +$32.3M |
2026 Q2
0 quarters
|
|
39
Thermo Fisher Scientific
TMO
$258B
| $34.3M | 0.46% |
+68,473
| New | +$32.9M |
2026 Q2
0 quarters
|
|
40
Intuitive Surgical
ISRG
$170B
| $33.1M | 0.44% |
83,279
+1,835
| +2% | +$802K |
2020 Q3
23 quarters
|
|
41
Chipotle Mexican Grill
CMG
$43.8B
| $31.6M | 0.42% |
+930,386
| New | +$30.4M |
2026 Q2
0 quarters
|
|
42
Applovin
APP
$90B
| $31M | 0.41% |
60,191
+5,692
| +10% | +$2.75M |
2024 Q3
7 quarters
|
|
43
UnitedHealth
UNH
$362B
| $30.8M | 0.41% |
74,017
-43,848
| -37% | -$16.3M |
2018 Q4
30 quarters
|
|
44
Astera Labs
ALAB
$36.9B
| $30.7M | 0.41% |
63,566
-67,501
| -52% | -$17.9M |
2025 Q3
3 quarters
|
|
45
McKesson
MCK
$119B
| $30.6M | 0.41% |
40,448
+23,752
| +142% | +$18.8M |
2022 Q2
16 quarters
|
|
46
Uber
UBER
$148B
| $29.1M | 0.39% |
403,389
-288,276
| -42% | -$21.1M |
2023 Q4
10 quarters
|
|
47
Autodesk
ADSK
$56.8B
| $28.4M | 0.38% |
146,058
-103,151
| -41% | -$23.6M |
2019 Q2
28 quarters
|
|
48
DoorDash
DASH
$86.5B
| $27.8M | 0.37% |
150,683
-43,769
| -23% | -$7.23M |
2022 Q3
15 quarters
|
|
49
KLA
KLAC
$197B
| $27.8M | 0.37% |
+91,989
| New | +$18.3M |
2026 Q2
0 quarters
|
|
50
Take-Two Interactive
TTWO
$38.7B
| $25.3M | 0.34% |
+101,231
| New | +$22.3M |
2026 Q2
0 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.