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Livermore
Livermore
ZHEN

Round Rock Advisors, LLC

SEC CIK
0001846991
Latest filing
Aug 12, 2026

The latest 13F from Round Rock Advisors, LLC covers Q2 2026 (filed Aug 12, 2026): 318 long positions worth $776.4M. The top 10 holdings make up 46.6% of the portfolio, and the largest is Invesco QQQ Trust Series I at 7.9%. Livermore has 23 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
30
Est. +$19.6M
Added
88
Est. +$26.9M
Reduced
86
Est. −$12.3M
Sold out
30
Est. −$17.2M

Top 5 holdings

Share of this quarter's portfolio value

  1. Invesco QQQ Trust Series I46090E103
    7.9%$61.0M
  2. VanEck Semiconductor ETF92189F676
    7.1%$55.2M
  3. Vanguard High Dividend Yield Index ETF921946406
    6.6%$51.3M
  4. JPMorgan Ultra-Short Income ETF46641Q837
    6.2%$48.2M
  5. iShares Core S&P Small Cap ETF464287804
    4.7%$36.3M

Share of portfolio

Top 5 holdings and the other 313 positions, by share of portfolio value

  1. Invesco QQQ Trust Series I7.9%
  2. VanEck Semiconductor ETF7.1%
  3. Vanguard High Dividend Yield Index ETF6.6%
  4. JPMorgan Ultra-Short Income ETF6.2%
  5. iShares Core S&P Small Cap ETF4.7%
  6. Other 313 positions67.5%

Biggest buys

New and added positions, by estimated amount bought

  1. IBITiShares Bitcoin Trust ETF
    +$3.12MNewHistory
  2. JPMorgan Ultra-Short Income ETF46641Q837
    +$2.41MAdded
  3. TMSTeamshares Inc
    +$2.28MNewHistory
  4. TDAYUSA TODAY Co., Inc.
    +$2.13MNewHistory
  5. HZOMarinemax Inc
    +$2.11MAddedHistory

Largest weight increases

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

  1. Invesco QQQ Trust Series I46090E103
    +0.79 pp7.1% → 7.9%
  2. IBITiShares Bitcoin Trust ETF
    +0.40 pp0.0% → 0.4%History
  3. HZOMarinemax Inc
    +0.31 pp0.3% → 0.6%History
  4. TMSTeamshares Inc
    +0.29 pp0.0% → 0.3%History
  5. TDAYUSA TODAY Co., Inc.
    +0.27 pp0.0% → 0.3%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. EZBCFranklin Templeton Digital Holdings Trust
    −$2.14MSold outHistory
  2. HONHoneywell International Inc
    −$2.03MSold outHistory
  3. VanEck Semiconductor ETF92189F676
    −$1.69MReduced
  4. Teamshares IncG5509P102
    −$1.43MSold out
  5. TDOCTeladoc Health, Inc.
    −$1.27MSold outHistory

Largest weight decreases

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

  1. BRK.ABerkshire Hathaway Inc
    −0.35 pp2.1% → 1.7%History
  2. EZBCFranklin Templeton Digital Holdings Trust
    −0.33 pp0.3% → 0.0%History
  3. HONHoneywell International Inc
    −0.31 pp0.3% → 0.0%History
  4. Teamshares IncG5509P102
    −0.22 pp0.2% → 0.0%
  5. TDOCTeladoc Health, Inc.
    −0.20 pp0.2% → 0.0%History

Metrics

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

Portfolio value
$776.4M
+$122.8M (+18.8%) vs. prior quarter
Positions
318
0 vs. prior quarter
Top 10 concentration
46.6%
Top 10 as share of value
Turnover
4.1%
Q2 2026, one quarter
Average holding period
16.2 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 $776.4M (Q2 2026)

Q1 2021: $125.8MQ2 2021: $137.2MQ3 2021: $135.2MQ4 2021: $225.7MQ1 2022: $246.6MQ2 2022: $222.0MQ3 2022: $220.8MQ4 2022: $244.2MQ1 2023: $260.8MQ2 2023: $276.7MQ3 2023: $263.6MQ4 2023: $397.2MQ1 2024: $417.4MQ2 2024: $410.7MQ3 2024: $427.8MQ4 2024: $487.5MQ1 2025: $539.2MQ2 2025: $579.7MQ3 2025: $631.2MQ4 2025: $664.8MQ1 2026: $653.5MQ2 2026: $776.4M
Q1 2021Q2 2026
13F filings of Round Rock Advisors, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 12, 2026318$776.4MInvesco QQQ Trust Series IVanEck Semiconductor ETFVanguard High Dividend Yield Index ETFvs. Q1 2026SEC
Q1 2026May 15, 2026318$653.5MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IJPMorgan Ultra-Short Income ETFvs. Q4 2025SEC
Q4 2025Apr 7, 2026Amended326$664.8MInvesco QQQ Trust Series IJPMorgan Ultra-Short Income ETFVanguard High Dividend Yield Index ETFvs. Q3 2025SEC
Q3 2025Nov 14, 2025327$631.2MInvesco QQQ Trust Series IJPMorgan Ultra-Short Income ETFVanguard High Dividend Yield Index ETFvs. Q2 2025SEC
Q2 2025Aug 6, 2025215$579.7MJPMorgan Ultra-Short Income ETFInvesco QQQ Trust Series IVanguard High Dividend Yield Index ETFvs. Q1 2025SEC
Q1 2025Apr 30, 2025216$539.2MJPMorgan Ultra-Short Income ETFVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series Ivs. Q4 2024SEC
Q4 2024Jan 24, 2025217$487.5MJPMorgan Ultra-Short Income ETFInvesco QQQ Trust Series IVanguard High Dividend Yield Index ETFvs. Q3 2024SEC
Q3 2024Nov 4, 2024183$427.8MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IiShares Core S&P Small Cap ETFvs. Q2 2024SEC
Q2 2024Aug 2, 2024180$410.7MInvesco QQQ Trust Series IVanguard High Dividend Yield Index ETFiShares Core S&P Small Cap ETFvs. Q1 2024SEC
Q1 2024Apr 24, 2024190$417.4MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q4 2023SEC
Q4 2023Jan 29, 2024184$397.2MInvesco QQQ Trust Series IVanguard High Dividend Yield Index ETFVanguard Morningstar Mid-Cap ETFvs. Q3 2023SEC
Q3 2023Oct 16, 2023141$263.6MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q2 2023SEC
Q2 2023Jul 20, 2023145$276.7MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q1 2023SEC
Q1 2023May 2, 2023142$260.8MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q4 2022SEC
Q4 2022Jan 19, 2023153$244.2MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q3 2022SEC
Q3 2022Oct 20, 2022142$220.8MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q2 2022SEC
Q2 2022Jul 22, 2022141$222.0MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q1 2022SEC
Q1 2022Apr 28, 2022142$246.6MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q4 2021SEC
Q4 2021Jan 20, 2022120$225.7MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q3 2021SEC
Q3 2021Oct 25, 202160$135.2MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q2 2021SEC
Q2 2021Aug 5, 202168$137.2MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETFvs. Q1 2021SEC
Q1 2021Apr 26, 202167$125.8MVanguard High Dividend Yield Index ETFInvesco QQQ Trust Series IVanguard Morningstar Mid-Cap ETF–SEC