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Avalon Advisory Group

SEC CIK
0001802119
Latest filing
Jul 29, 2026

The latest 13F from Avalon Advisory Group covers Q2 2026 (filed Jul 29, 2026): 14 long positions worth $270.8M. The top 10 holdings make up 99.6% of the portfolio, and the largest is Vanguard Morningstar Total Stock Market ETF at 52.7%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
2
Est. +$483.3K
Added
2
Est. +$771.0K
Reduced
6
Est. −$1.11M
Sold out
0

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard Morningstar Total Stock Market ETF922908769
    52.7%$142.6M
  2. iShares Tr464287440
    32.5%$88.1M
  3. Vanguard Ftse All-World Ex-US Index Fund922042775
    6.3%$17.0M
  4. iShares Tr464287150
    3.1%$8.30M
  5. Schwab International Equity ETF808524805
    1.8%$4.91M

Biggest buys

New and added positions, by estimated amount bought

  1. iShares Tr464287440
    +$576.4KAdded
  2. iShares Tr464288661
    +$243.4KNew
  3. GOOGAlphabet Inc.
    +$239.9KNewHistory
  4. Vanguard Ftse All-World Ex-US Index Fund922042775
    +$194.6KAdded

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. Vanguard Ftse All-World Ex-US Index Fund922042775
    +0.20 pp6.1% → 6.3%
  2. iShares Tr464288661
    +0.09 pp0.0% → 0.1%
  3. GOOGAlphabet Inc.
    +0.09 pp0.0% → 0.1%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. Vanguard Morningstar Total Stock Market ETF922908769
    −$1.04MReduced
  2. iShares Tr464287150
    −$41.1KReduced
  3. Schwab U.S. Broad Market ETF808524102
    −$14.5KReduced
  4. Vanguard Star FDS921909768
    −$6.67KReduced
  5. Schwab International Equity ETF808524805
    −$6.18KReduced

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

None this quarter.

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$270.8M
+$22.9M (+9.2%) vs. prior quarter
Positions
14
+2 vs. prior quarter
Top 10 concentration
99.6%
Top 10 as share of value
Turnover
0.4%
Q2 2026, one quarter
Average holding period
21.9 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $270.8M (Q2 2026)

Q1 2021: $204.3MQ2 2021: $216.6MQ3 2021: $221.8MQ4 2021: $202.7MQ1 2022: $190.1MQ2 2022: $168.5MQ3 2022: $159.6MQ4 2022: $155.0MQ1 2023: $168.1MQ2 2023: $175.8MQ3 2023: $170.0MQ4 2023: $191.7MQ1 2024: $206.5MQ2 2024: $209.9MQ3 2024: $220.6MQ4 2024: $219.0MQ1 2025: $212.3MQ2 2025: $232.8MQ3 2025: $246.7MQ4 2025: $245.1MQ1 2026: $247.9MQ2 2026: $270.8M
Q1 2021Q2 2026
13F filings of Avalon Advisory Group by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 29, 202614$270.8MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q1 2026SEC
Q1 2026Apr 22, 202612$247.9MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q4 2025SEC
Q4 2025Jan 29, 202613$245.1MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q3 2025SEC
Q3 2025Nov 13, 202518$246.7MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q2 2025SEC
Q2 2025Jul 14, 202516$232.8MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q1 2025SEC
Q1 2025May 14, 202515$212.3MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q4 2024SEC
Q4 2024Jan 15, 202516$219.0MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q3 2024SEC
Q3 2024Nov 14, 202415$220.6MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q2 2024SEC
Q2 2024Aug 14, 202415$209.9MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q1 2024SEC
Q1 2024May 3, 202413$206.5MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q4 2023SEC
Q4 2023Jan 29, 20247$191.7MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q3 2023SEC
Q3 2023Oct 13, 20239$170.0MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q2 2023SEC
Q2 2023Aug 9, 20237$175.8MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q1 2023SEC
Q1 2023May 10, 20237$168.1MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q4 2022SEC
Q4 2022Jan 31, 20237$155.0MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q3 2022SEC
Q3 2022Nov 10, 20229$159.6MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q2 2022SEC
Q2 2022Aug 11, 202210$168.5MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q1 2022SEC
Q1 2022May 12, 202210$190.1MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q4 2021SEC
Q4 2021Feb 8, 202210$202.7MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q3 2021SEC
Q3 2021Nov 3, 202110$221.8MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q2 2021SEC
Q2 2021Jul 22, 202110$216.6MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fundvs. Q1 2021SEC
Q1 2021May 6, 202110$204.3MVanguard Morningstar Total Stock Market ETFiShares TrVanguard Ftse All-World Ex-US Index Fund–SEC