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HARBOR ADVISORY CORP /MA/

Institutional InvestorSimilar funds →SEC EDGAR: CIK 1100710
Institutional-grade research for retail investors

Sector Allocation

  • Other62.7%$234.5M
  • Technology14.1%$52.6M
  • Financials7.1%$26.4M
  • Healthcare5.6%$21.1M
  • Consumer Discretionary5.2%$19.3M
  • Industrials2.6%$9.9M
  • Consumer Staples1.6%$5.9M
  • Energy1.1%$4.1M

AUM History

13fpro.ai/research/fund/harbor-advisory-corp-ma-1100710

Conviction and streaks

Concentrating · top 10 = 42.5%

From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.

Largest positions — Q2 2026

  • VANGUARD
    $20.4M
  • ISHARES
    $17.7M
  • GOOGLGOOGL
    $17.0M
  • VANGUARD
    $15.7M
  • ISHARES
    $15.4M
  • VANGUARD
    $15.0M
  • FIRST
    $14.7M
  • AMZNAMZN
    $14.5M
  • J
    $14.2M
  • BRK.BBRK.B
    $14.1M
  • ISHARES
    $12.0M
  • AAPLAAPL
    $11.4M
  • ISHARES
    $11.2M
  • CSCOCSCO
    $10.2M
  • VANGUARD
    $9.3M
  • ISHARES
    $8.8M
  • BIPBIP
    $8.7M
  • MSFTMSFT
    $8.5M
  • VANGUARD
    $7.8M
  • JNJJNJ
    $7.3M

Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.

13fpro.ai/research/fund/harbor-advisory-corp-ma-1100710

HARBOR ADVISORY CORP /MA/ 13F holdings — Q2 2026

$373.7M portfolio (+12.3% QoQ) · 82 holdings · Q2 2026 13F · top 10 are 43% of the stock portfolio

  • 1

    VANGUARD INDEX FDS - S&P 500 ETF SHS

    $20.4M

    5.5% of stocks

    -8%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • 2

    ISHARES TR - CORE S&P MCP ETF

    $17.7M

    4.7% of stocks

    +12%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • $17.0M

    4.5% of stocks

    -9%This quarter-8.7%Since filed10+ qtrsHeld
    AIQuality77.7#62Est. buyEstimated buy price is Pro: unlock with a free trialTrimmed 4 qtrs in a row
  • 4

    VANGUARD INTL EQUITY INDEX F - FTSE EUROPE ETF

    $15.7M

    4.2% of stocks

    +3%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • 5

    ISHARES TR - CORE S&P SCP ETF

    $15.4M

    4.1% of stocks

    +5%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • 6

    VANGUARD INTL EQUITY INDEX F - FTSE EMR MKT ETF

    $15.0M

    4.0% of stocks

    +5%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • 7

    FIRST TR EXCHANGE-TRADED FD - SENIOR LN FD

    $14.7M

    3.9% of stocks

    +2%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • $14.5M

    3.9% of stocks

    -2%This quarter-6.0%Since filed10+ qtrsHeld
    AIQuality67.5#363Est. buyEstimated buy price is Pro: unlock with a free trialTrimmed 3 qtrs in a row
  • 9

    J P MORGAN EXCHANGE TRADED F - INCOME ETF

    $14.2M

    3.8% of stocks

    +18%This quarter—Since filed—Held
    AIQuality—Est. buy—
  • $14.1M

    3.8% of stocks

    +28%This quarter—Since filed10+ qtrsHeld

All holdings — HARBOR ADVISORY CORP /MA/ (Q2 2026)

82 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.

Company
— ISHARES TR - ISHARES SEMICDTRetf/fund$12.0M-40%
AAPL$AAPLApple Inc.$11.4M-3%
— ISHARES TR - CORE S&P500 ETFetf/fund$11.2M-2%
CSCO$CSCOCISCO SYSTEMS, INC.$10.2M-13%
— VANGUARD INDEX FDS - SMALL CP ETFetf/fund$9.3M-8%
— ISHARES INC - EM MKT SM-CP ETFetf/fund$8.8M+2%
BIP$BIPBrookfield Infrastructure Partners L.P.lp unit$8.7M+1%
MSFT$MSFTMICROSOFT CORP$8.5M+3%
— VANGUARD INDEX FDS - MID CAP ETFetf/fund$7.8M+289%
JNJ$JNJJOHNSON & JOHNSON$7.3M-3%
JPM$JPMJPMORGAN CHASE & CO$7.3M-4%
— VANGUARD ADMIRAL FDS INC - MIDCP 400 IDXetf/fund$6.4M—
— ISHARES TR - IBDS DEC28 ETFetf/fund$6.1M+13%
— ISHARES TR - EAFE SML CP ETFetf/fund$5.8M+8%
— SPDR INDEX SHS FDS - ST STR PO EX ETFetf/fund$5.7M—

What changed in Q2 2026

Against the previous quarter's 13F: 7 new, 18 added to, 24 trimmed, 4 sold out. Share-count changes; largest moves by dollar size first.

New positions (7)

  • MU$MUMICRON TECHNOLOGY INC$1.5M

    first bought this quarter

  • ISHARES TR - IBONDS DEC 2031$652K

    first bought this quarter

  • HFWA$HFWAHERITAGE FINANCIAL CORP /WA/$609K

    first bought this quarter

  • INTC$INTCINTEL CORP$262K

    first bought this quarter

  • LLY$LLYELI LILLY & Co$233K

    first bought this quarter

  • ISHARES TR - RUS 2000 VAL ETF$227K

    first bought this quarter

+1 more in the Excel export

Added to (18)

  • VANGUARD INDEX FDS - MID CAP ETF+289%

    now $7.8M

  • BRK.B$BRK.BBERKSHIRE HATHAWAY INC+28%

    now $14.1M · held 10+ qtrs

  • J P MORGAN EXCHANGE TRADED F - INCOME ETF+18%

    now $14.2M

  • ISHARES TR - CORE S&P MCP ETF+12%

    now $17.7M

  • ISHARES TR - CORE S&P SCP ETF+5%

    now $15.4M

  • ISHARES TR - IBDS DEC28 ETF+13%

    now $6.1M

+12 more in the Excel export

Trimmed (24)

  • ISHARES TR - ISHARES SEMICDTR-40%

    now $12.0M

  • VANGUARD INDEX FDS - S&P 500 ETF SHS-8%

    now $20.4M

  • GOOGL$GOOGLAlphabet Inc.-9%

    now $17.0M · held 10+ qtrs, 4 trims in a row

  • CSCO$CSCOCISCO SYSTEMS, INC.-13%

    now $10.2M · held 10+ qtrs

  • VANGUARD INDEX FDS - SMALL CP ETF-8%

    now $9.3M

  • V$VVISA INC.-17%

    now $2.1M · held 10+ qtrs, 3 trims in a row

+18 more in the Excel export

Sold out (4)

  • ISHARES TRwas $448K
  • AVGO$AVGOBroadcom Inc.was $362K

    held 9+ qtrs

  • VANGUARD INDEX FDSwas $225K
  • STX$STXSeagate Technology Holdings plcwas $206K

    held 1 qtr

Firm AUM (Form ADV): $480.9M as of 2025-12-31 · SEC IAPD

Holdings by quarter

Every 13F HARBOR ADVISORY CORP /MA/ has filed, 34 earlier quarters. Pick one to see what it held then.

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Q2 2026 13F filed with the SEC on Aug 13, 2026. Prices are closing prices as of Oct 26, 2026.

Average quality of HARBOR ADVISORY's top 20 holdings: 72/100 (our AI quality score, weighted by position size; 18 of the 20 are scored)

Top 10 since filing

-1.5%

Value-weighted move of the 10 largest stock positions

Turnover

5%

Last quarter; 15% over the last 4

Top 10 weight

43%

Share of the stock portfolio in its 10 largest positions

Held 4+ quarters

98%

Share of portfolio value in positions held a year or more

Highest-quality names it owns(among its 100 largest positions)

The 8 highest-scoring companies in this portfolio are a Pro feature.

How these are measured
  • Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
  • Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
  • Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q1 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
  • Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
  • Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.

Portfolio Overview

HARBOR ADVISORY CORP /MA/ disclosed 82 positions worth $373.7M in its Form 13F-HR for Q2 2026. During the quarter the fund opened 7 new positions and exited 4 — including a new stake in $MU. The portfolio is most concentrated in Other (62.7% of disclosed assets). All figures are sourced directly from HARBOR ADVISORY CORP /MA/’s Form 13F-HR filing with the SEC under CIK 1100710.

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AI-Powered Hedge Fund Analysis: HARBOR ADVISORY CORP /MA/

13F Pro is an AI hedge fund tracker and stock research platform. For HARBOR ADVISORY CORP /MA/ (SEC CIK: 1100710), the platform ingests every quarterly Form 13F filing and applies AI-powered analysis on top — 10 specialized AI analysts (value, growth, momentum, macro, activist, and more) debate the fund's top positions and publish AI-generated analysis with cited SEC sources.

Every holding in HARBOR ADVISORY CORP /MA/'s portfolio is scored on an AI quality ranking built from its SEC filings (ROIC, FCF margin, revenue growth, institutional flow, earnings quality, shareholder dilution, and more). Track accumulation and distribution quarter over quarter, identify conviction positions, and see AI stock analysis for each position — alongside 8,700+ other institutional filers and 2,800+ AI-ranked companies.