Hallstatt Advisors L.P.
NEW YORK, NY
$142m in 13 US stocks at the end of 30 June 2026. The top 10 are 92.0% of the money. It changed about 21.0% of the portfolio this quarter.
Value
$142m
Stocks
13
Top 10 share
92.0%
Turnover
21.0%
What changed this quarter
New
Bought for the first time this quarter.
- AmphenolAPH8.1% of the fund
- ATS Corp /ATSATS1.7% of the fund
Added
Bought more of a stock they already held.
- Casella Waste SystemsCWST12.9% of the fund+15%
- TE ConnectivityTEL9.5% of the fund+26%
- VistraVST9.1% of the fund+18%
- Centuri HoldingsCTRI8.6% of the fund+41%
- Solaris Energy InfrastructureSEI8.3% of the fund+22%
Cut
Sold some of their stake.
- Clean HarborsCLH8.4% of the fund-13%
- GFL EnvironmentalGFL6.9% of the fund-17%
- Eagle MaterialsEXP3.6% of the fund-40%
- ArcelorMittalMT2.7% of the fund-8%
Sold out
Sold their entire stake.
- BeldenBDC-100%
- Marvell TechnologyMRVL-100%
- AerCap HoldingsAER-100%
- Siemens Energy AGSMERY-100%
Holdings
- GFL EnvironmentalGFL
- Share
- 6.9%
- Value
- $10m
- Shares
- 266,189
-17%
- Secure Waste Infrastructu
- Share
- 5.5%
- Value
- $8m
- Shares
- 501,743
Held
- ATS Corp /ATSATS
- Share
- 1.7%
- Value
- $2m
- Shares
- 83,020
New
| Company | Share of fund | Value | Shares | Change |
|---|---|---|---|---|
| Granite ConstructionGVA | 14.8% | $21m | 132,484 | Held |
| Casella Waste SystemsCWST | 12.9% | $18m | 189,527 | +15% |
| TE ConnectivityTEL | 9.5% | $13m | 66,564 | +26% |
| VistraVST | 9.1% | $13m | 81,444 | +18% |
| Centuri HoldingsCTRI | 8.6% | $12m | 401,715 | +41% |
| Clean HarborsCLH | 8.4% | $12m | 39,917 | -13% |
| Solaris Energy InfrastructureSEI | 8.3% | $12m | 146,907 | +22% |
| AmphenolAPH | 8.1% | $11m | 64,975 | New |
| GFL EnvironmentalGFL | 6.9% | $10m | 266,189 | -17% |
| Secure Waste Infrastructu | 5.5% | $8m | 501,743 | Held |
| Eagle MaterialsEXP | 3.6% | $5m | 22,463 | -40% |
| ArcelorMittalMT | 2.7% | $4m | 63,949 | -8% |
| ATS Corp /ATSATS | 1.7% | $2m | 83,020 | New |
Over time and by industry
Value over time
Dec '25
Jun '26
Value is up 5.8% since 31 December 2025.
Where the money is
Utilities37.5%
Industrials33.2%
Technology17.5%
Materials6.3%
Other5.5%
From the fund's 13F filings. They list US stocks and options only, 45 days after each quarter, and leave out cash, bonds, shorts and foreign shares.