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Livermore
Livermore
ZHEN

Harbor Investment Advisory, LLC

SEC CIK
0001468792
Latest filing
Jul 7, 2026

The latest 13F from Harbor Investment Advisory, LLC covers Q2 2026 (filed Jul 7, 2026): 1,310 long positions worth $1.43B. The top 10 holdings make up 38.4% of the portfolio, and the largest is Marriott International Inc (MAR) at 13.8%. 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
156
Est. +$18.7M
Added
264
Est. +$45.3M
Reduced
224
Est. −$32.9M
Sold out
73
Est. −$10.9M

Top 5 holdings

Share of this quarter's portfolio value

  1. MARMarriott International Inc
    13.8%$197.2MHistory
  2. AAPLApple Inc.
    6.4%$91.9MHistory
  3. GOOGLAlphabet Inc.
    4.2%$60.8MHistory
  4. AMZNAmazon Com Inc
    3.8%$54.7MHistory
  5. MSFTMicrosoft Corp
    2.4%$35.0MHistory

Share of portfolio

Top 5 holdings and the other 1,305 positions, by share of portfolio value

  1. MAR13.8%
  2. AAPL6.4%
  3. GOOGL4.2%
  4. AMZN3.8%
  5. MSFT2.4%
  6. Other 1,305 positions69.3%

Biggest buys

New and added positions, by estimated amount bought

  1. XOMExxonMobil Holdings Corp
    +$5.42MNewHistory
  2. iShares Core MSCI Emerging Markets ETF46434G103
    +$1.92MAdded
  3. Invesco QQQ Trust Series I46090E103
    +$1.72MAdded
  4. Vanguard Morningstar Value ETF922908744
    +$1.42MAdded
  5. iShares Russell 1000 Value ETF464287598
    +$1.39MAdded

Largest weight increases

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

  1. XOMExxonMobil Holdings Corp
    +0.38 pp0.0% → 0.4%History
  2. INTCIntel Corp
    +0.21 pp0.1% → 0.3%History
  3. AMDAdvanced Micro Devices Inc
    +0.20 pp0.1% → 0.3%History
  4. SNDKSandisk Corp
    +0.20 pp0.1% → 0.3%History
  5. Invesco QQQ Trust Series I46090E103
    +0.17 pp0.4% → 0.5%

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. XOMExxonMobil Holdings Corp
    −$6.68MSold outHistory
  2. GEVGE Vernova Inc.
    −$3.77MReducedHistory
  3. HONHoneywell International Inc
    −$3.39MSold outHistory
  4. VICRVicor Corp
    −$2.43MReducedHistory
  5. GEGeneral Electric Co
    −$1.97MReducedHistory

Largest weight decreases

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

  1. XOMExxonMobil Holdings Corp
    −0.53 pp0.5% → 0.0%History
  2. MSFTMicrosoft Corp
    −0.33 pp2.8% → 2.4%History
  3. HONHoneywell International Inc
    −0.27 pp0.3% → 0.0%History
  4. GLDSPDR Gold Trust
    −0.25 pp1.0% → 0.7%History
  5. BRK.BBerkshire Hathaway Inc
    −0.19 pp2.4% → 2.2%History

Metrics

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

Portfolio value
$1.43B
+$161.9M (+12.8%) vs. prior quarter
Positions
1,310
+83 vs. prior quarter
Top 10 concentration
38.4%
Top 10 as share of value
Turnover
3.2%
Q2 2026, one quarter
Average holding period
20.2 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 $1.43B (Q2 2026)

Q1 2021: $663.7MQ2 2021: $737.5MQ3 2021: $737.1MQ4 2021: $789.9MQ1 2022: $754.3MQ2 2022: $623.8MQ3 2022: $607.0MQ4 2022: $640.2MQ1 2023: $669.3MQ2 2023: $717.9MQ3 2023: $764.0MQ4 2023: $866.6MQ1 2024: $956.6MQ2 2024: $957.8MQ3 2024: $1.01BQ4 2024: $1.07BQ1 2025: $1.03BQ2 2025: $1.12BQ3 2025: $1.21BQ4 2025: $1.33BQ1 2026: $1.27BQ2 2026: $1.43B
Q1 2021Q2 2026
13F filings of Harbor Investment Advisory, LLC by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Jul 7, 20261,310$1.43BMARAAPLGOOGLvs. Q1 2026SEC
Q1 2026Apr 23, 20261,227$1.27BMARAAPLGOOGLvs. Q4 2025SEC
Q4 2025Jan 7, 20261,223$1.33BMARAAPLGOOGLvs. Q3 2025SEC
Q3 2025Oct 27, 20251,171$1.21BMARAAPLAMZNvs. Q2 2025SEC
Q2 2025Jul 1, 20251,172$1.12BMARAAPLAMZNvs. Q1 2025SEC
Q1 2025Apr 9, 20251,173$1.03BMARAAPLAMZNvs. Q4 2024SEC
Q4 2024Jan 16, 20251,135$1.07BMARAAPLAMZNvs. Q3 2024SEC
Q3 2024Oct 4, 20241,144$1.01BMARAAPLAMZNvs. Q2 2024SEC
Q2 2024Jul 19, 20241,302$957.8MMARAAPLAMZNvs. Q1 2024SEC
Q1 2024Apr 12, 20241,327$956.6MMARAAPLAMZNvs. Q4 2023SEC
Q4 2023Jan 26, 20241,159$866.6MMARAAPLAMZNvs. Q3 2023SEC
Q3 2023Oct 13, 20231,183$764.0MMARAAPLAMZNvs. Q2 2023SEC
Q2 2023Jul 14, 20231,338$717.9MAAPLMSFTAMZNvs. Q1 2023SEC
Q1 2023Apr 21, 20231,323$669.3MAAPLMSFTAMZNvs. Q4 2022SEC
Q4 2022Jan 24, 20231,331$640.2MAAPLMSFTAMZNvs. Q3 2022SEC
Q3 2022Nov 1, 20221,369$607.0MAAPLAMZNMSFTvs. Q2 2022SEC
Q2 2022Jul 18, 20221,379$623.8MAAPLAMZNMSFTvs. Q1 2022SEC
Q1 2022Apr 20, 20221,360$754.3MAAPLAMZNMSFTvs. Q4 2021SEC
Q4 2021Jan 10, 20221,329$789.9MAAPLAMZNMSFTvs. Q3 2021SEC
Q3 2021Oct 12, 20211,337$737.1MAAPLAMZNGOOGLvs. Q2 2021SEC
Q2 2021Jul 27, 20211,278$737.5MAAPLAMZNGOOGLvs. Q1 2021SEC
Q1 2021Apr 16, 20211,283$663.7MAAPLAMZNGOOGL–SEC