HA
Hallstatt Advisors L.p. 13F Portfolio & Top Holdings (Q2 2026)
Hallstatt Advisors L.p.CIK: 0002040638
Sector-focusedQuality / disciplined sizingLong-term holder
Total reported value
$141.9M
Reporting period: 2026-06-30 · Number of holdings: 13
HALLSTATT ADVISORS L.P. disclosed 13 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $141.9M and a quarterly turnover rate of 0.0%.
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Personality snowflake
- Concentration
- 37.48
- Portfolio Stability
- 0
- Momentum
- 50
- Sector conviction
- 95.66
- Diversification
- 26
- Sizing Uniformity
- 95.14
Hallstatt Advisors L.p.'s disclosed holdings carry a Herfindahl concentration index of 0.094 — mathematically equivalent to about 11 equally-sized positions, close to its 13 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.49), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govNew buy APH
Sold out BDC
Sold out MRVL
Trim GFL
-16.6% -$3.5M
Add SEI
+22.2% $5.0M
Add CWST
+14.6% $5.3M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GVA | Granite Construction Inc | Stock-Industrials | 14.76% | +2.20% | — | |
| 2 | CWST | Casella Waste Systems Inc-a | Stock-Industrials | 12.95% | +2.57% | +14.60% | |
| 3 | TEL | TE Connectivity plc | Stock-Tech | 9.46% | +0.71% | +25.77% | |
| 4 | VST | Vistra CORP | Stock-Utilities | 9.10% | +0.88% | +17.90% | |
| 5 | CTRI | Centuri Holdings Inc | Stock-Other | 8.56% | +1.96% | +40.60% | |
| 6 | CLH | Clean Harbors Inc | Stock-Industrials | 8.40% | -2.06% | -13.44% | |
| 7 | SEI | Solaris Energy Infrastructur | Stock-Energy | 8.33% | +2.96% | +22.21% | |
| 8 | APH | Amphenol Corp-cl A | Stock-Tech | 8.07% | +8.07% | NEW | |
| 9 | GFL | Gfl Environmental Inc-sub Vt | Stock-Other | 6.90% | -3.64% | -16.63% | |
| 10 | SECYF | Secure Waste Infrastructure | Stock-Other | 5.52% | -0.71% | — | |
| 11 | EXP | Eagle Materials Inc | Stock-Materials | 3.56% | -2.03% | -39.81% | |
| 12 | MT | Arcelormittal-ny Registered | Stock-Other | 2.71% | -0.15% | -7.97% | |
| 13 | ATS | Ats CORP | Stock-Other | 1.68% | +1.68% | NEW |
Portfolio Performance
Performance for Q3 2026
-0.3%
Performance Last 4 Quarters
+5%
- Stdev
- +33.7%
- Beta
- +1.15
- Alpha
- -13.9%
- Max Drawdown
- -10.2%
- Annualized Perf
- +10.4%
- Batting Avg vs S&P
- +33.3%
- Sortino
- +0.78
- Stutzer
- +0.14
- Treynor
- +0.13
- Sterling
- —
- Calmar
- +1.02
- Information Ratio
- -0.39
- Tracking Error
- +26.1%
- Stdev Down
- +18.6%
- Winning Months %
- +50%
- Losing Months %
- +50%
- Best 12 Months
- —
- Worst 12 Months
- —
- Efficiency Ratio
- +0.11
- Sharpe
- +0.43
- Stdev Sectors
- +15.4%
- Skewness
- +0.13
- Kurtosis
- -1.44
- Upside Potential
- +2.79
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Holding changes this quarter
Hallstatt Advisors L.p.'s most significant position changes for 2026-06-30: New buy: Amphenol Corp-cl A (APH); Sold out: Belden Inc (BDC); Sold out: Marvell Technology Inc (MRVL); New buy: Ats CORP (ATS); Sold out: AerCap Holdings N.V. (AER).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | APH | Amphenol Corp-cl A | +8.1% | NEW | New buy |
| 2 | SEI | Solaris Energy Infrastructur | +3% | +22.21% | Add |
| 3 | CWST | Casella Waste Systems Inc-a | +2.6% | +14.60% | Add |
| 4 | GVA | Granite Construction Inc | +2.2% | — | Unchanged |
| 5 | CTRI | Centuri Holdings Inc | +2% | +40.60% | Add |
| 6 | ATS | Ats CORP | +1.7% | NEW | New buy |
| 7 | VST | Vistra CORP | +0.9% | +17.90% | Add |
| 8 | TEL | TE Connectivity plc | +0.7% | +25.77% | Add |
| 9 | MT | Arcelormittal-ny Registered | -0.2% | -7.97% | Trim |
| 10 | SMERY | Siemens Energy AG Spon Adr | -0.3% | EXIT | Sold out |
| 11 | SECYF | Secure Waste Infrastructure | -0.7% | — | Unchanged |
| 12 | AER | AerCap Holdings N.V. | -1.1% | EXIT | Sold out |
| 13 | EXP | Eagle Materials Inc | -2% | -39.81% | Trim |
| 14 | CLH | Clean Harbors Inc | -2.1% | -13.44% | Trim |
| 15 | GFL | Gfl Environmental Inc-sub Vt | -3.6% | -16.63% | Trim |
| 16 | MRVL | Marvell Technology Inc | -5.5% | EXIT | Sold out |
| 17 | BDC | Belden Inc | -5.6% | EXIT | Sold out |
Filing History
FAQ
What is Hallstatt Advisors L.p. and what type of investor is it?
Hallstatt Advisors L.p. is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $141.9M, spread across 13 disclosed positions.
What are Hallstatt Advisors L.p.'s largest equity positions?
Based on the latest 13F filing, Hallstatt Advisors L.p.'s top holdings by market value are:
1. Granite Construction Inc (GVA) — $20.9M (14.8%)
2. Casella Waste Systems Inc-a (CWST) — $18.4M (12.9%)
3. TE Connectivity plc (TEL) — $13.4M (9.5%)
4. Vistra CORP (VST) — $12.9M (9.1%)
5. Centuri Holdings Inc (CTRI) — $12.1M (8.6%)
What changes did Hallstatt Advisors L.p. make in its most recent portfolio filing?
In the latest reported quarter, Hallstatt Advisors L.p. made 15 notable position adjustments: 2 new positions were initiated, 5 existing holdings were added to, 4 positions were partially reduced, and 4 were completely exited. The largest of these moves: New buy: Amphenol Corp-cl A (APH); Sold out: Belden Inc (BDC); Sold out: Marvell Technology Inc (MRVL); New buy: Ats CORP (ATS); Sold out: AerCap Holdings N.V. (AER)
What sectors does Hallstatt Advisors L.p. focus on?
Hallstatt Advisors L.p. is concentrated in the following sectors based on its current disclosed equity portfolio:
• Industrials: 48.4%
• Information Technology: 23.5%
• Utilities: 12.2%
• Energy: 11.2%
• Materials: 4.8%
Investment Profile
Hallstatt Advisors L.p. returned an annualized 10.3% over the trailing 6 months — underperforming the S&P 500 by 13.9 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.15 (more volatile than the market) and a 33% quarterly batting average against the index.
Its portfolio is moderately concentrated and long-term-holding, with 48.4% of the portfolio concentrated in Industrials.
It has added to its TEL position over the past two quarters (+$5.1M, now $13.4M), while trimming CLH over the same stretch (-$3.3M, still holding $11.9M).
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