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Livermore
Livermore
ZHEN

TAGStone Capital, Inc.

SEC CIK
0001903044
Latest filing
Aug 11, 2026

The latest 13F from TAGStone Capital, Inc. covers Q2 2026 (filed Aug 11, 2026): 139 long positions worth $314.6M. The top 10 holdings make up 43.2% of the portfolio, and the largest is iShares Core S&P 500 ETF at 8.5%. Livermore has 19 filings on Form 13F from this institution, going back to Q4 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
6
Est. +$1.67M
Added
78
Est. +$9.88M
Reduced
34
Est. −$4.57M
Sold out
4
Est. −$1.38M

Top 5 holdings

Share of this quarter's portfolio value

  1. iShares Core S&P 500 ETF464287200
    8.5%$26.7M
  2. Vanguard Intermediate-Term Corporate Bond ETF92206C870
    6.0%$18.9M
  3. AMZNAmazon Com Inc
    5.1%$15.9MHistory
  4. State Street SPDR Portfolio S&P 500 Growth ETF78464A409
    5.0%$15.7M
  5. Vanguard Scottsdale FDS92206C409
    4.3%$13.6M

Biggest buys

New and added positions, by estimated amount bought

  1. Vanguard Scottsdale FDS92206C409
    +$985.9KAdded
  2. Vanguard Intermediate-Term Corporate Bond ETF92206C870
    +$857.0KAdded
  3. iShares Tr46434V456
    +$745.7KAdded
  4. NVDANVIDIA Corp
    +$685.1KAddedHistory
  5. Invesco S&P 500 Quality ETF46137V241
    +$567.1KAdded

Largest weight increases

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

  1. State Street SPDR Portfolio S&P 500 Growth ETF78464A409
    +0.49 pp4.5% → 5.0%
  2. GOOGLAlphabet Inc.
    +0.42 pp2.1% → 2.5%History
  3. NVDANVIDIA Corp
    +0.26 pp1.4% → 1.7%History
  4. iShares Core S&P 500 ETF464287200
    +0.25 pp8.2% → 8.5%
  5. Invesco S&P 500 Quality ETF46137V241
    +0.25 pp0.9% → 1.2%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. Dimensional Ultrashort Fixed Income ETF25434V591
    −$965.5KReduced
  2. iShares Tr46434V878
    −$615.0KReduced
  3. iShares Tr46436E718
    −$546.0KSold out
  4. HONHoneywell International Inc
    −$390.0KSold outHistory
  5. Vanguard Mun BD FDS922907746
    −$344.1KReduced

Largest weight decreases

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

  1. Dimensional Ultrashort Fixed Income ETF25434V591
    −0.72 pp4.1% → 3.4%
  2. Vanguard Mun BD FDS922907712
    −0.26 pp2.6% → 2.3%
  3. iShares Tr46434V878
    −0.24 pp0.4% → 0.2%
  4. Vanguard Mun BD FDS922907746
    −0.22 pp1.2% → 1.0%
  5. iShares Tr46436E718
    −0.19 pp0.2% → 0.0%

Metrics

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

Portfolio value
$314.6M
+$31.8M (+11.2%) vs. prior quarter
Positions
139
+2 vs. prior quarter
Top 10 concentration
43.2%
Top 10 as share of value
Turnover
2.0%
Q2 2026, one quarter
Average holding period
15.6 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 (Q4 2021), so positions held before then are understated.

13F filings by quarter

19 quarters, going back to Q4 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $314.6M (Q2 2026)

Q4 2021: $120.3MQ1 2022: $118.6MQ2 2022: $104.9MQ3 2022: $107.7MQ4 2022: $121.2MQ1 2023: $133.6MQ2 2023: $138.7MQ3 2023: $136.0MQ4 2023: $153.0MQ1 2024: $170.8MQ2 2024: $176.4MQ3 2024: $195.7MQ4 2024: $203.2MQ1 2025: $203.3MQ2 2025: $242.4MQ3 2025: $252.4MQ4 2025: $268.5MQ1 2026: $282.8MQ2 2026: $314.6M
Q4 2021Q2 2026
13F filings of TAGStone Capital, Inc. by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 11, 2026139$314.6MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q1 2026SEC
Q1 2026May 11, 2026137$282.8MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q4 2025SEC
Q4 2025Feb 10, 2026116$268.5MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q3 2025SEC
Q3 2025Nov 5, 2025117$252.4MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q2 2025SEC
Q2 2025Aug 11, 2025113$242.4MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q1 2025SEC
Q1 2025May 5, 202597$203.3MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFBRK.Bvs. Q4 2024SEC
Q4 2024Feb 11, 202592$203.2MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q3 2024SEC
Q3 2024Nov 8, 202492$195.7MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q2 2024SEC
Q2 2024Aug 13, 202488$176.4MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q1 2024SEC
Q1 2024May 7, 202485$170.8MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q4 2023SEC
Q4 2023Feb 12, 202480$153.0MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q3 2023SEC
Q3 2023Nov 9, 202377$136.0MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q2 2023SEC
Q2 2023Aug 10, 202381$138.7MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFAMZNvs. Q1 2023SEC
Q1 2023May 11, 202380$133.6MVanguard Intermediate-Term Corporate Bond ETFiShares Core S&P 500 ETFBRK.Bvs. Q4 2022SEC
Q4 2022Feb 13, 202371$121.2MiShares Core S&P 500 ETFVanguard Intermediate-Term Corporate Bond ETFBRK.Bvs. Q3 2022SEC
Q3 2022Nov 1, 202270$107.7MiShares Core S&P 500 ETFAMZNBRK.Bvs. Q2 2022SEC
Q2 2022Aug 1, 202271$104.9MiShares Core S&P 500 ETFAMZNBRK.Bvs. Q1 2022SEC
Q1 2022May 13, 202270$118.6MiShares Core S&P 500 ETFAMZNBRK.Bvs. Q4 2021SEC
Q4 2021Feb 1, 202270$120.3MiShares Core S&P 500 ETFAMZNState Street SPDR Portfolio S&P 500 Growth ETF–SEC