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Livermore
Livermore
ZHEN

Advanced Asset Management Advisors Inc

SEC CIK
0001075444
Latest filing
Jul 16, 2026

The latest 13F from Advanced Asset Management Advisors Inc covers Q2 2026 (filed Jul 16, 2026): 85 long positions worth $380.1M. The top 10 holdings make up 52.8% of the portfolio, and the largest is Vanguard S&P 500 ETF at 13.6%. 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
6
Est. +$673.4K
Added
13
Est. +$88.4K
Reduced
18
Est. −$23.0M
Sold out
0

Top 5 holdings

Share of this quarter's portfolio value

  1. Vanguard S&P 500 ETF922908363
    13.6%$51.6M
  2. iShares Core S&P 500 ETF464287200
    11.2%$42.7M
  3. FCXFreeport-McMoran Inc
    4.1%$15.7MHistory
  4. CSCOCisco Systems, Inc.
    4.1%$15.5MHistory
  5. GWWW.W. Grainger, Inc.
    3.7%$13.9MHistory

Share of portfolio

Top 5 holdings and the other 80 positions, by share of portfolio value

  1. Vanguard S&P 500 ETF13.6%
  2. iShares Core S&P 500 ETF11.2%
  3. FCX4.1%
  4. CSCO4.1%
  5. GWW3.7%
  6. Other 80 positions63.3%

Biggest buys

New and added positions, by estimated amount bought

  1. AVGOBroadcom Inc.
    +$255.7KNewHistory
  2. iShares MSCI USA Quality Factor ETF46432F339
    +$204.1KNew
  3. Vanguard Information Technology ETF92204A702
    +$96.7KNew
  4. Vanguard Energy ETF92204A306
    +$58.0KNew
  5. Vanguard Consumer Staples ETF92204A207
    +$36.3KNew

Largest weight increases

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

  1. GOOGLAlphabet Inc.
    +0.57 pp3.1% → 3.6%History
  2. AMZNAmazon Com Inc
    +0.23 pp2.5% → 2.8%History
  3. AAPLApple Inc.
    +0.18 pp2.1% → 2.3%History
  4. AVGOBroadcom Inc.
    +0.07 pp0.0% → 0.1%History
  5. iShares MSCI USA Quality Factor ETF46432F339
    +0.05 pp0.0% → 0.1%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. AMATApplied Materials Inc
    −$13.6MReducedHistory
  2. Vanguard S&P 500 ETF922908363
    −$8.58MReduced
  3. Invesco Exchange Traded FD T46137V357
    −$411.8KReduced
  4. SPYSPDR S&P 500 ETF Trust
    −$203.9KReducedHistory
  5. Invesco QQQ Trust Series I46090E103
    −$156.8KReduced

Largest weight decreases

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

  1. Vanguard S&P 500 ETF922908363
    −0.89 pp14.5% → 13.6%
  2. AMATApplied Materials Inc
    −0.47 pp3.0% → 2.6%History
  3. Invesco Exchange Traded FD T46137V357
    −0.09 pp0.2% → 0.1%
  4. MSFTMicrosoft Corp
    −0.09 pp2.3% → 2.2%History
  5. SPYSPDR S&P 500 ETF Trust
    −0.01 pp0.5% → 0.5%History

Metrics

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

Portfolio value
$380.1M
+$18.0M (+5.0%) vs. prior quarter
Positions
85
+6 vs. prior quarter
Top 10 concentration
52.8%
Top 10 as share of value
Turnover
0.2%
Q2 2026, one quarter
Average holding period
21.5 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 $482.7M (Q4 2021)

Q1 2021: $448.7MQ2 2021: $473.0MQ3 2021: $466.2MQ4 2021: $482.7MQ1 2022: $456.5MQ2 2022: $390.1MQ3 2022: $365.3MQ4 2022: $399.6MQ1 2023: $410.5MQ2 2023: $431.7MQ3 2023: $417.4MQ4 2023: $420.8MQ1 2024: $404.5MQ2 2024: $376.2MQ3 2024: $374.2MQ4 2024: $381.8MQ1 2025: $363.7MQ2 2025: $370.3MQ3 2025: $374.0MQ4 2025: $366.2MQ1 2026: $362.0MQ2 2026: $380.1M
Q1 2021Q2 2026
13F filings of Advanced Asset Management Advisors Inc by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 16, 202685$380.1MVanguard S&P 500 ETFiShares Core S&P 500 ETFFCXvs. Q1 2026SEC
Q1 2026Apr 24, 202679$362.0MVanguard S&P 500 ETFiShares Core S&P 500 ETFXOMvs. Q4 2025SEC
Q4 2025Feb 2, 202681$366.2MVanguard S&P 500 ETFiShares Core S&P 500 ETFFCXvs. Q3 2025SEC
Q3 2025Oct 20, 202585$374.0MVanguard S&P 500 ETFiShares Core S&P 500 ETFAAPLvs. Q2 2025SEC
Q2 2025Jul 24, 202586$370.3MVanguard S&P 500 ETFiShares Core S&P 500 ETFVvs. Q1 2025SEC
Q1 2025Apr 17, 202585$363.7MVanguard S&P 500 ETFiShares Core S&P 500 ETFTMUSvs. Q4 2024SEC
Q4 2024Jan 31, 202584$381.8MVanguard S&P 500 ETFiShares Core S&P 500 ETFMSFTvs. Q3 2024SEC
Q3 2024Oct 24, 202486$374.2MVanguard S&P 500 ETFiShares Core S&P 500 ETFMSFTvs. Q2 2024SEC
Q2 2024Aug 1, 202487$376.2MVanguard S&P 500 ETFiShares Core S&P 500 ETFMSFTvs. Q1 2024SEC
Q1 2024Apr 26, 202493$404.5MVanguard S&P 500 ETFiShares Core S&P 500 ETFAMATvs. Q4 2023SEC
Q4 2023Feb 2, 202496$420.8MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q3 2023SEC
Q3 2023Oct 16, 202392$417.4MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q2 2023SEC
Q2 2023Aug 3, 202393$431.7MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q1 2023SEC
Q1 2023May 11, 202393$410.5MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q4 2022SEC
Q4 2022Feb 14, 2023246$399.6MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q3 2022SEC
Q3 2022Nov 7, 202291$365.3MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q2 2022SEC
Q2 2022Aug 12, 202291$390.1MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q1 2022SEC
Q1 2022May 4, 202289$456.5MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q4 2021SEC
Q4 2021Jan 24, 202291$482.7MVanguard S&P 500 ETFiShares Core S&P 500 ETFSchwab U.S. Large-Cap ETFvs. Q3 2021SEC
Q3 2021Oct 28, 202194$466.2MVanguard S&P 500 ETFVanguard Morningstar Growth ETFiShares Core S&P 500 ETFvs. Q2 2021SEC
Q2 2021Jul 28, 202194$473.0MVanguard S&P 500 ETFVanguard Morningstar Growth ETFiShares Core S&P 500 ETFvs. Q1 2021SEC
Q1 2021May 3, 202197$448.7MVanguard S&P 500 ETFVanguard Morningstar Growth ETFiShares Core S&P 500 ETF–SEC