CIK: 0001802119
Total reported value
$270.8M
Reporting period: 2026-06-30 · Number of holdings: 14
Avalon Advisory Group disclosed 14 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $270.8M and a quarterly turnover rate of 0.0%.
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Avalon Advisory Group's disclosed holdings carry a Herfindahl concentration index of 0.389 — mathematically equivalent to about 3 equally-sized positions, well below its 14 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 2.19), 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 1% 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.
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Trim IEF
+0.7% -$228.4K
Add VTI
-0.7% $18.1M
Add VEU
+1.2% $1.9M
Add ITOT
-0.5% $1.1M
New buy IEI
New buy GOOG
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 52.66% | +2.42% | -0.73% | |
| 2 | IEF | Ishares 7-10 Year Treasury B | ETF-Gov Bonds | 32.52% | -3.10% | +0.66% | |
| 3 | VEU | Vanguard Ftse All-world Ex-u | ETF-Other | 6.27% | +0.20% | +1.16% | |
| 4 | ITOT | Ishares Core S&p Total U.s. | ETF-Other | 3.07% | +0.15% | -0.49% | |
| 5 | SCHF | Schwab Intl Equity ETF | ETF-Other | 1.82% | +0.05% | -0.13% | |
| 6 | SCHB | Schwab US Broad Market ETF | ETF-Other | 1.65% | +0.08% | -0.32% | |
| 7 | VXUS | Vanguard Total Intl Stock | ETF-Other | 0.95% | +0.01% | -0.26% | |
| 8 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.35% | +0.02% | -0.50% | |
| 9 | AAPL | Apple Inc | Stock-Tech | 0.16% | +0.01% | — | |
| 10 | MSFT | Microsoft CORP | Stock-Tech | 0.15% | -0.01% | — | |
| 11 | NVDA | Nvidia CORP | Stock-Tech | 0.12% | +0.01% | — | |
| 12 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.11% | — | — | |
| 13 | IEI | Ishares 3-7 Year Treasury Bo | ETF-Gov Bonds | 0.09% | +0.09% | NEW | |
| 14 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.09% | +0.09% | NEW |
Performance for Q3 2026
+1.2%
Performance Last 4 Quarters
+14.1%
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 14 | $270.8M | 0 | ||
| 2026 Q1 | 12 | $247.9M | 2 | ||
| 2025 Q4 | 13 | $245.1M | 5 | ||
| 2025 Q3 | 18 | $246.7M | 15 | ||
| 2025 Q2 | 16 | $232.8M | 0 | ||
| 2025 Q1 | 15 | $212.3M | 100 | ||
| 2024 Q4 | 16 | $219.0M | 0 | ||
| 2024 Q3 | 15 | $220.6M | 0 | ||
| 2024 Q2 | 15 | $209.9M | 0 | ||
| 2024 Q1 | 13 | $206.5M | 0 | ||
| 2023 Q4 | 7 | $191.7M | 0 | ||
| 2023 Q3 | 9 | $170.0M | 0 | ||
| 2023 Q2 | 7 | $175.8M | 0 | ||
| 2023 Q1 | 7 | $168.1M | 0 | ||
| 2022 Q4 | 7 | $155.0M | 0 | ||
| 2022 Q3 | 9 | $159.6M | 0 | ||
| 2022 Q2 | 10 | $168.5M | 0 | ||
| 2022 Q1 | 10 | $190.1M | 0 | ||
| 2021 Q4 | 10 | $202.7M | 0 | ||
| 2021 Q3 | 10 | $221.8M | 0 | ||
| 2021 Q2 | 10 | $216.6M | 97 | ||
| 2021 Q1 | 10 | $204.3M | 2 | ||
| 2020 Q4 | 10 | $200.4M | 8 | ||
| 2020 Q3 | 10 | $186.2M | 6 | ||
| 2020 Q2 | 10 | $176.9M | 13 | ||
| 2020 Q1 | 9 | $157.1M | 16 | ||
| 2019 Q4 | 8 | $157.7M | 0 |
Avalon Advisory Group's most significant position changes for 2026-06-30: New buy: Ishares 3-7 Year Treasury Bo (IEI); New buy: Alphabet Inc-cl C (GOOG); Add: Ishares 7-10 Year Treasury B (IEF) — shares +0.66%; Trim: Vanguard Total Stock Mkt ETF (VTI) — shares -0.73%; Add: Vanguard Ftse All-world Ex-u (VEU) — shares +1.16%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | VTI | Vanguard Total Stock Mkt ETF | +2.4% | -0.73% | Trim |
| 2 | VEU | Vanguard Ftse All-world Ex-u | +0.2% | +1.16% | Add |
| 3 | ITOT | Ishares Core S&p Total U.s. | +0.2% | -0.49% | Trim |
| 4 | IEI | Ishares 3-7 Year Treasury Bo | +0.1% | NEW | New buy |
| 5 | GOOG | Alphabet Inc-cl C | +0.1% | NEW | New buy |
| 6 | SCHB | Schwab US Broad Market ETF | +0.1% | -0.32% | Trim |
| 7 | SCHF | Schwab Intl Equity ETF | +0.1% | -0.13% | Trim |
| 8 | VOO | Vanguard S&p 500 ETF | 0% | -0.50% | Trim |
| 9 | VXUS | Vanguard Total Intl Stock | 0% | -0.26% | Trim |
| 10 | AAPL | Apple Inc | 0% | — | Unchanged |
| 11 | NVDA | Nvidia CORP | 0% | — | Unchanged |
| 12 | SPY | Ss Spdr S&p 500 ETF Trust-us | — | — | Unchanged |
| 13 | MSFT | Microsoft CORP | 0% | — | Unchanged |
| 14 | IEF | Ishares 7-10 Year Treasury B | -3.1% | +0.66% | Add |
Avalon Advisory Group returned an annualized 14.8% over the trailing 36 months — underperforming the S&P 500 by 0.4 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.74 (less volatile than the market) and a 33% quarterly batting average against the index.
Its portfolio is concentrated and long-term-holding, with 82.7% of the portfolio concentrated in Information Technology.
It has added to its VTI position for two straight quarters, increasing it by $18.2M to reach $142.6M.
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