TC
Tetrad CORP SEC 13F Filing (Q2 2026) — Holdings & Portfolio
Tetrad CORPCIK: 0000883597
Concentrated strategySector-focusedLong-term holder
Total reported value
$1.0B
Reporting period: 2026-06-30 · Number of holdings: 3
TETRAD CORP disclosed 3 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $1.0B and a quarterly turnover rate of 4.7%.
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Personality snowflake
- Concentration
- 100
- Portfolio Stability
- 4.68
- Momentum
- 50
- Sector conviction
- 100
- Diversification
- 6
- Sizing Uniformity
- 84.75
Tetrad CORP's disclosed holdings carry a Herfindahl concentration index of 0.850 — mathematically equivalent to about 1 equally-sized positions, well below its 3 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.53), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 8% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd USB
0.0% $6.0M
Trim EPD
0.0% -$1.2M
Trim BRK-B
0.0% $40.8M
Holdings Map
New buyAddUnchangedTrim
* 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.
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 92.03% | -0.12% | — | |
| 2 | USB | US Bancorp | Stock-Financials | 4.10% | +0.41% | — | |
| 3 | EPD | Enterprise Products Partners | Stock-Energy | 3.87% | -0.29% | — |
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 3 | $1.0B | 5 | ||
| 2026 Q1 | 3 | $1.0B | 5 | ||
| 2025 Q4 | 3 | $1.0B | 3 | ||
| 2025 Q3 | 3 | $1.1B | 0 | ||
| 2025 Q2 | 3 | $1.0B | 0 | ||
| 2025 Q1 | 3 | $1.1B | 0 | ||
| 2024 Q4 | 3 | $973.6M | 0 | ||
| 2024 Q3 | 3 | $981.6M | 0 | ||
| 2024 Q2 | 3 | $494.7M | 0 | ||
| 2024 Q1 | 3 | $515.6M | 0 | ||
| 2023 Q4 | 3 | $446.7M | 0 | ||
| 2023 Q3 | 3 | $427.0M | 0 | ||
| 2023 Q2 | 3 | $416.6M | 0 | ||
| 2023 Q1 | 3 | $388.1M | 0 | ||
| 2022 Q4 | 3 | $396.9M | 0 | ||
| 2022 Q3 | 3 | $350.0M | 0 | ||
| 2022 Q2 | 4 | $369.9M | 0 | ||
| 2022 Q1 | 3 | $456.2M | 0 | ||
| 2021 Q4 | 3 | $402.4M | 0 | ||
| 2021 Q3 | 3 | $380.6M | 0 | ||
| 2021 Q2 | 3 | $384.8M | — | ||
| 2021 Q1 | 3 | $357.7M | — | ||
| 2020 Q4 | 3 | $319.1M | — | ||
| 2020 Q3 | 4 | $288.6M | — | ||
| 2020 Q2 | 4 | $259.3M | — | ||
| 2020 Q1 | 4 | $258.4M | — | ||
| 2019 Q4 | 3 | $327.2M | — | ||
| 2019 Q3 | 3 | $303.4M | — | ||
| 2019 Q2 | 6 | $367.9M | — | ||
| 2019 Q1 | 6 | $350.3M | — | ||
| 2018 Q4 | 4 | $330.6M | — | ||
| 2018 Q3 | 4 | $355.0M | — | ||
| 2018 Q2 | 4 | $317.8M | — | ||
| 2018 Q1 | 4 | $359.5M | — | ||
| 2017 Q4 | 4 | $361.1M | — | ||
| 2017 Q3 | 4 | $342.4M | — | ||
| 2017 Q2 | 4 | $328.1M | — | ||
| 2017 Q1 | 4 | $330.1M | — | ||
| 2016 Q4 | 8 | $336.3M | — | ||
| 2016 Q3 | 8 | $299.7M | — | ||
| 2016 Q2 | 8 | $292.6M | — | ||
| 2016 Q1 | 8 | $280.6M | — | ||
| 2015 Q4 | 10 | $276.0M | — | ||
| 2015 Q3 | 10 | $280.1M | — | ||
| 2015 Q2 | 10 | $310.4M | — | ||
| 2015 Q1 | 10 | $328.7M | — | ||
| 2014 Q4 | 10 | $341.9M | — | ||
| 2014 Q3 | 11 | $343.0M | — | ||
| 2014 Q2 | 10 | $318.4M | — | ||
| 2014 Q1 | 10 | $306.4M | — | ||
| 2013 Q4 | 11 | $289.6M | — | ||
| 2013 Q3 | 11 | $277.7M | — | ||
| 2013 Q2 | 11 | $276.8M | — |
Holding changes this quarter
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | USB | US Bancorp | +0.4% | — | Unchanged |
| 2 | BRK-B | Berkshire Hathaway Inc-cl B | -0.1% | — | Unchanged |
| 3 | EPD | Enterprise Products Partners | -0.3% | — | Unchanged |
Filing History
FAQ
What is Tetrad CORP and what type of investor is it?
Tetrad CORP 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 $1.0B, spread across 3 disclosed positions.
What are Tetrad CORP's largest equity positions?
Based on the latest 13F filing, Tetrad CORP's top holdings by market value are:
1. Berkshire Hathaway Inc-cl B (BRK-B) — $962.3M (92.0%)
2. US Bancorp (USB) — $42.9M (4.1%)
3. Enterprise Products Partners (EPD) — $40.4M (3.9%)
What changes did Tetrad CORP make in its most recent portfolio filing?
No notable portfolio changes were recorded for Tetrad CORP in the most recent quarter. Holdings appear to have remained relatively stable.
What sectors does Tetrad CORP focus on?
Tetrad CORP is concentrated in the following sectors based on its current disclosed equity portfolio:
• Financials: 51.5%
• Energy: 48.5%
Investment Profile
Tetrad CORP's portfolio is concentrated and long-term-holding, with 51.5% of the portfolio concentrated in Financials.
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Developer Access
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REST API
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