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Livermore
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Old Port Advisors

SEC CIK
0001744348
Latest filing
Oct 23, 2026

The latest 13F from Old Port Advisors covers Q3 2026 (filed Oct 23, 2026): 270 long positions worth $498.3M. The top 10 holdings make up 26.3% of the portfolio, and the largest is Seagate Technology Holdings plc (STX) at 5.5%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q3 2026

Full comparison

Share counts compared with Q2 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.

New
14
Est. +$4.30M
Added
121
Est. +$9.33M
Reduced
118
Est. −$9.62M
Sold out
10
Est. −$2.05M

Top 5 holdings

Share of this quarter's portfolio value

  1. STXSeagate Technology Holdings plc
    5.5%$27.3MHistory
  2. MSFTMicrosoft Corp
    3.1%$15.6MHistory
  3. ETF Opportunities Trust26923N405
    2.7%$13.4M
  4. GLWCorning Inc
    2.4%$12.2MHistory
  5. IAUiShares Gold Trust
    2.4%$11.9MHistory

Share of portfolio

Top 5 holdings and the other 265 positions, by share of portfolio value

  1. STX5.5%
  2. MSFT3.1%
  3. ETF Opportunities Trust2.7%
  4. GLW2.4%
  5. IAU2.4%
  6. Other 265 positions83.9%

Biggest buys

New and added positions, by estimated amount bought

  1. MASS908 Devices Inc.
    +$2.16MAddedHistory
  2. Schwab US Tips ETF808524870
    +$1.43MNew
  3. Alps ETF Tr00162Q346
    +$594.8KAdded
  4. iShares Russell 1000 Growth ETF464287614
    +$541.9KNew
  5. Profesionally Managed Portfo74316P538
    +$466.3KAdded

Largest weight increases

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

  1. MASS908 Devices Inc.
    +0.46 pp0.1% → 0.5%History
  2. MRNAModerna, Inc.
    +0.34 pp0.2% → 0.5%History
  3. Schwab US Tips ETF808524870
    +0.29 pp0.0% → 0.3%
  4. ETF Opportunities Trust26923N405
    +0.21 pp2.5% → 2.7%
  5. IAUiShares Gold Trust
    +0.20 pp2.2% → 2.4%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. Global X FDS37954Y293
    −$1.68MReduced
  2. AAPLApple Inc.
    −$1.44MReducedHistory
  3. MUMicron Technology Inc
    −$742.3KReducedHistory
  4. STXSeagate Technology Holdings plc
    −$641.9KReducedHistory
  5. iShares Tr46436E841
    −$328.2KReduced

Largest weight decreases

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

  1. GLWCorning Inc
    −1.59 pp4.0% → 2.4%History
  2. INTCIntel Corp
    −0.38 pp2.6% → 2.2%History
  3. Global X FDS37954Y293
    −0.36 pp0.7% → 0.4%
  4. CATCaterpillar Inc
    −0.36 pp1.6% → 1.2%History
  5. STXSeagate Technology Holdings plc
    −0.29 pp5.8% → 5.5%History

Metrics

13F metrics for Q3 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$498.3M
−$8.24M (−1.6%) vs. prior quarter
Positions
270
+4 vs. prior quarter
Top 10 concentration
26.3%
Top 10 as share of value
Turnover
2.3%
Q3 2026, one quarter
Average holding period
11.1 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 $506.5M (Q2 2026)

Q1 2021: $254.8MQ2 2021: $278.0MQ3 2021: $276.0MQ4 2021: $295.3MQ1 2022: $293.8MQ2 2022: $258.5MQ3 2022: $251.4MQ4 2022: $265.5MQ1 2023: $277.9MQ3 2023: $275.6MQ4 2023: $301.1MQ1 2024: $326.7MQ2 2024: $334.9MQ3 2024: $360.0MQ4 2024: $347.9MQ1 2025: $337.0MQ2 2025: $366.6MQ3 2025: $396.8MQ4 2025: $405.9MQ1 2026: $433.2MQ2 2026: $506.5MQ3 2026: $498.3M
Q1 2021Q3 2026
13F filings of Old Port Advisors by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q3 2026Oct 23, 2026270$498.3MSTXMSFTETF Opportunities Trustvs. Q2 2026SEC
Q2 2026Jul 21, 2026266$506.5MSTXGLWINTCvs. Q1 2026SEC
Q1 2026Apr 6, 2026237$433.2MSTXIAUMSFTvs. Q4 2025SEC
Q4 2025Jan 8, 2026230$405.9MMSFTIAUAAPLvs. Q3 2025SEC
Q3 2025Oct 6, 2025237$396.8MMSFTIAUAAPLvs. Q2 2025SEC
Q2 2025Jul 16, 2025233$366.6MMSFTiShares Core S&P 500 ETFIAUvs. Q1 2025SEC
Q1 2025May 6, 2025223$337.0MMSFTIAUiShares Core S&P 500 ETFvs. Q4 2024SEC
Q4 2024Jan 2, 2025229$347.9MMSFTAAPLETF Ser Solutionsvs. Q3 2024SEC
Q3 2024Oct 24, 2024238$360.0MMSFTAAPLETF Ser Solutionsvs. Q2 2024SEC
Q2 2024Jul 18, 2024225$334.9MMSFTAAPLETF Ser Solutionsvs. Q1 2024SEC
Q1 2024Jun 26, 2024222$326.7MMSFTSchwab US Dividend Equity ETFETF Ser Solutionsvs. Q4 2023SEC
Q4 2023Jun 26, 2024218$301.1MMSFTAAPLSchwab US Dividend Equity ETFvs. Q3 2023SEC
Q3 2023Nov 14, 2023206$275.6MMSFTAAPLSchwab US Dividend Equity ETF–SEC
Q1 2023Apr 12, 2023210$277.9MMSFTAAPLSchwab US Dividend Equity ETFvs. Q4 2022SEC
Q4 2022Jan 11, 2023216$265.5MMSFTAAPLSchwab US Dividend Equity ETFvs. Q3 2022SEC
Q3 2022Oct 13, 2022215$251.4MMSFTAAPLSPDR Series Trustvs. Q2 2022SEC
Q2 2022Jul 8, 2022219$258.5MMSFTAAPLPFEvs. Q1 2022SEC
Q1 2022Apr 12, 2022226$293.8MMSFTAAPLTYLvs. Q4 2021SEC
Q4 2021Jan 12, 2022227$295.3MMSFTAAPLTYLvs. Q3 2021SEC
Q3 2021Oct 12, 2021215$276.0MMSFTTYLAAPLvs. Q2 2021SEC
Q2 2021Jul 20, 2021219$278.0MMSFTTYLAAPLvs. Q1 2021SEC
Q1 2021Apr 8, 2021213$254.8MMSFTTYLSPDR Series Trust–SEC