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Livermore
Livermore
ZHEN

Advisor OS, LLC

SEC CIK
0001767580
Latest filing
Aug 5, 2026

The latest 13F from Advisor OS, LLC covers Q2 2026 (filed Aug 5, 2026): 586 long positions worth $1.50B. The top 10 holdings make up 37.0% of the portfolio, and the largest is Vanguard S&P 500 ETF at 7.7%. 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
56
Est. +$30.4M
Added
213
Est. +$88.1M
Reduced
278
Est. −$106.4M
Sold out
41
Est. −$19.3M

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard S&P 500 ETF922908363
    7.7%$115.7M
  2. Vanguard Dividend Appreciation ETF921908844
    4.5%$66.8M
  3. T Rowe Price Exchange-Traded87283Q107
    4.1%$61.7M
  4. Janus Detroit STR Tr47103U845
    4.1%$61.0M
  5. PIMCO Enhanced Short Maturity Active Exchange-Traded Fund72201R833
    3.8%$57.0M

Biggest buys

New and added positions, by estimated amount bought

  1. T Rowe Price Exchange-Traded87283Q107
    +$7.04MAdded
  2. Invesco Exch Traded FD Tr II46138G664
    +$5.02MAdded
  3. Schwab US Aggregate Bond ETF808524839
    +$4.94MAdded
  4. American Centy ETF Tr025072604
    +$4.34MAdded
  5. Vanguard S&P 500 ETF922908363
    +$4.11MAdded

Largest weight increases

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

  1. Vanguard S&P 500 ETF922908363
    +0.69 pp7.0% → 7.7%
  2. T Rowe Price Exchange-Traded87283Q107
    +0.63 pp3.5% → 4.1%
  3. American Centy ETF Tr025072604
    +0.37 pp0.7% → 1.1%
  4. Invesco Exch Traded FD Tr II46138G664
    +0.34 pp<0.1% → 0.4%
  5. Schwab US Aggregate Bond ETF808524839
    +0.33 pp<0.1% → 0.4%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. State Street SPDR Portfolio Aggregate Bond ETF78464A649
    −$17.2MReduced
  2. SPYSPDR S&P 500 ETF Trust
    −$8.21MReducedHistory
  3. Invesco Exchange Traded FD T46137V357
    −$6.92MReduced
  4. iShares Tr46434V878
    −$6.06MReduced
  5. Vanguard Ftse Developed Markets ETF921943858
    −$5.43MReduced

Largest weight decreases

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

  1. State Street SPDR Portfolio Aggregate Bond ETF78464A649
    −1.25 pp1.3% → <0.1%
  2. SPYSPDR S&P 500 ETF Trust
    −0.50 pp0.9% → 0.4%History
  3. iShares Tr46434V878
    −0.45 pp0.6% → 0.1%
  4. Invesco Exchange Traded FD T46137V357
    −0.43 pp1.3% → 0.9%
  5. Dimensional ETF Trust25434V799
    −0.37 pp2.4% → 2.1%

Metrics

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

Portfolio value
$1.50B
+$117.1M (+8.5%) vs. prior quarter
Positions
586
+15 vs. prior quarter
Top 10 concentration
37.0%
Top 10 as share of value
Turnover
8.2%
Q2 2026, one quarter
Average holding period
13.8 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 $1.50B (Q2 2026)

Q1 2021: $441.1MQ2 2021: $481.9MQ3 2021: $460.0MQ4 2021: $490.2MQ1 2022: $345.3MQ2 2022: $342.8MQ3 2022: $331.7MQ4 2022: $376.6MQ1 2023: $416.6MQ2 2023: $611.2MQ3 2023: $667.2MQ4 2023: $768.3MQ1 2024: $870.2MQ2 2024: $913.1MQ3 2024: $1.00BQ4 2024: $863.5MQ1 2025: $878.7MQ2 2025: $1.02BQ3 2025: $1.16BQ4 2025: $1.24BQ1 2026: $1.38BQ2 2026: $1.50B
Q1 2021Q2 2026
13F filings of Advisor OS, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 5, 2026586$1.50BVanguard S&P 500 ETFVanguard Dividend Appreciation ETFT Rowe Price Exchange-Tradedvs. Q1 2026SEC
Q1 2026May 8, 2026571$1.38BVanguard S&P 500 ETFVanguard Dividend Appreciation ETFJanus Detroit STR Trvs. Q4 2025SEC
Q4 2025Feb 4, 2026489$1.24BVanguard S&P 500 ETFPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard Dividend Appreciation ETFvs. Q3 2025SEC
Q3 2025Nov 12, 2025466$1.16BVanguard S&P 500 ETFPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard Dividend Appreciation ETFvs. Q2 2025SEC
Q2 2025Aug 14, 2025449$1.02BVanguard S&P 500 ETFPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard Dividend Appreciation ETFvs. Q1 2025SEC
Q1 2025May 6, 2025424$878.7MVanguard S&P 500 ETFVanguard Dividend Appreciation ETFiShares Trvs. Q4 2024SEC
Q4 2024Feb 5, 2025407$863.5MVanguard S&P 500 ETFVanguard Dividend Appreciation ETFAAPLvs. Q3 2024SEC
Q3 2024Nov 4, 2024406$1.00BVanguard S&P 500 ETFVanguard Dividend Appreciation ETFiShares Trvs. Q2 2024SEC
Q2 2024Aug 5, 2024385$913.1MVanguard S&P 500 ETFVanguard Dividend Appreciation ETFiShares Trvs. Q1 2024SEC
Q1 2024May 9, 2024383$870.2MVanguard S&P 500 ETFVanguard Dividend Appreciation ETFiShares Trvs. Q4 2023SEC
Q4 2023Feb 8, 2024340$768.3MVanguard S&P 500 ETFPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard Dividend Appreciation ETFvs. Q3 2023SEC
Q3 2023Nov 3, 2023284$667.2MPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard S&P 500 ETFVanguard Dividend Appreciation ETFvs. Q2 2023SEC
Q2 2023Aug 8, 2023299$611.2MInvesco Exchange Traded FD TVanguard Dividend Appreciation ETFiShares Trvs. Q1 2023SEC
Q1 2023Apr 25, 2023240$416.6MInvesco Exchange Traded FD TPIMCO Enhanced Short Maturity Active Exchange-Traded FundNOCvs. Q4 2022SEC
Q4 2022Feb 1, 2023213$376.6MNOCPIMCO Enhanced Short Maturity Active Exchange-Traded FundInvesco Exchange Traded FD Tvs. Q3 2022SEC
Q3 2022Nov 4, 2022199$331.7MPIMCO Enhanced Short Maturity Active Exchange-Traded FundNOCSchwab US Aggregate Bond ETFvs. Q2 2022SEC
Q2 2022Aug 2, 2022200$342.8MPIMCO Enhanced Short Maturity Active Exchange-Traded FundNOCSchwab US Aggregate Bond ETFvs. Q1 2022SEC
Q1 2022May 11, 2022197$345.3MPIMCO Enhanced Short Maturity Active Exchange-Traded FundNOCInvesco Exchange Traded FD Tvs. Q4 2021SEC
Q4 2021Feb 4, 2022239$490.2MPIMCO Enhanced Short Maturity Active Exchange-Traded FundInvesco Exchange Traded FD TNOCvs. Q3 2021SEC
Q3 2021Nov 15, 2021221$460.0MPIMCO Enhanced Short Maturity Active Exchange-Traded FundSPYInvesco Exchange Traded FD Tvs. Q2 2021SEC
Q2 2021Aug 10, 2021223$481.9MPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard S&P 500 ETFSPYvs. Q1 2021SEC
Q1 2021May 13, 2021196$441.1MPIMCO Enhanced Short Maturity Active Exchange-Traded FundVanguard Dividend Appreciation ETFVanguard Ftse All-World Ex-US Index Fund–SEC