Harbor Investment Advisory portfolio

Type not verified

Portfolio as of Sep 30, 2026 (Q3 2026) · filed with the SEC on Oct 13, 2026 · data updated on Nov 5, 2026 · Q3 2026 13F (filing) ↗ · all its 13F filings ↗

A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.

Harbor Investment Advisory reported a $1.5 bn portfolio of 1,417 companies (1,428 positions, counting each share class separately) to the SEC as of the end of Q3 2026. Its largest positions are MAR, AAPL, GOOGL.

Stock portfolio

$1.5 bn

Companies

1,417

1,428 positions (by CUSIP)Top 10: 39%

Turnover

Copying its 13F, 5 years

—

Not calculated: not counted as a concentrated manager

Sections with a free account

What changed this quarter

795 positions with a change (150 new, 386 added to, 229 trimmed, 30 sold).

No moves of 0.5 points of the portfolio or more.

The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.

Top holdings

Marriott InternationalMAR12.9%
AppleAAPL7.2%
AlphabetGOOGL · GOOG5.4%
Amazon.comAMZN3.9%
MicrosoftMSFT3.4%
Berkshire HathawayBRK/B2.1%
NVIDIANVDA1.5%
JPMorgan ChaseJPM1.3%
iShares Core S&P 500 ETFIVV1.3%
Vanguard Index FundsVTI1.2%
Vanguard Mrngstar GR ETF-sui ETFVUG1.2%
Vanguard Mrngstr Val ETF-aui ETFVTV1.2%
Invesco Exchange Traded Fund TRSP1.2%
Vanguard S&P 500 ETFVOO1.1%
SPDR Gold Minishares Trust ETFGLDM1.0%
MastercardMA1.0%
VisaV1.0%
iShares Russell 2000 Value E ETFIWN0.8%
Eli LillyLLY0.8%
Johnson & JohnsonJNJ0.8%
State Street SPDR BB 1-3m T-bill ETFBIL0.8%
State Str Spdr S&P 500 ETF TSPY0.7%
Vanguard Index FundsVOE0.7%
Meta PlatformsMETA0.7%
SPDR Gold Shares ETFGLD0.7%
AmgenAMGN0.7%
BroadcomAVGO0.7%
iShares Core Msci Eafe ETFIEFA0.7%
Vanguard Index FundsVOT0.6%
CrowdStrike HoldingsCRWD0.6%
iShares Russell Top 200 Grow ETFIWY0.6%
iShares Msci Eafe ETFEFA0.5%
Janus Detroit Str TrJSI0.5%
Janus Henderson AAA CLO ETFJAAA0.5%
iShares Core Dividend Growth ETFDGRO0.5%
Vanguard Real Estate ETFVNQ0.5%
Invesco QQQ Trust Series 1 ETFQQQ0.5%
BlackRockBLK0.5%
iShares Russell 1000 Growth ETFIWF0.5%
Tidal Trust IRISR0.5%
Goldman Sachs GroupGS0.5%
Bank of AmericaBAC0.5%
Exxon MobilXOM0.5%
iShares Russell 1000 Value E ETFIWD0.4%
Dimensional ETF TrustDFIS0.4%
iShares Russell 2000 Growth ETFIWO0.4%
iShares Core S&P Midcap ETFIJH0.4%
iShares S&P 500 Growth ETFIVW0.4%
WalmartWMT0.4%
Costco WholesaleCOST0.4%
iShares Russell 1000 ETFIWB0.4%
Advanced Micro DevicesAMD0.4%
UnitedHealth GroupUNH0.4%
Amer Beac GLG Ntrl Rsrcs ETFMGNR0.4%
AbbVieABBV0.4%
Vanguard Index FundsVBK0.4%
iShares Russell Top 200 Valu ETFIWX0.4%
iShares Russell Mid-cap Grow ETFIWP0.3%
iShares Core S&P Small-cap E ETFIJR0.3%
iShares S&P 500 Value ETFIVE0.3%
Vaneck ETF TrustGDXJ0.3%
T Rowe Price Exchange-tradedTCAF0.3%
StarbucksSBUX0.3%
IntelINTC0.3%
Vanguard High DVD Yield ETFVYM0.3%
Markel GroupMKL0.3%
iShares Russell Mid-cap Valu ETFIWS0.3%
TeslaTSLA0.3%
ChevronCVX0.3%
Agnico Eagle MinesAEM0.3%
Vanguard Dividend Apprec ETFVIG0.3%
Cisco SystemsCSCO0.2%
ASML HoldingASML0.2%
Procter & GamblePG0.2%
iShares Ibonds DEC 2028 ETFIBDT0.2%
Capital Group Dividend ValueCGDV0.2%
Ishares TrIBDS0.2%
J P Morgan Exchange Traded FundHELO0.2%
GE VernovaGEV0.2%
Micron TechnologyMU0.2%
iShares 1-3 Year Treasury BO ETFSHY0.2%
IsharesIEMG0.2%
Vanguard Index FundsVBR0.2%
KLAKLAC0.2%
RTXRTX0.2%
Abbott LaboratoriesABT0.2%
United RentalsURI0.2%
iShares Ibonds DEC 2029 Term ETFIBDU0.2%
State Street SPDR S&P Biotech ETFXBI0.2%
EatonETN0.2%
Harbor ETF TrustHGER0.2%
State Street Technology Select Sector ETFXLK0.2%
American Centy ETF TrAVDE0.2%
Home DepotHD0.2%
Suncor EnergySU0.2%
Vertiv HoldingsVRT0.2%
J P Morgan Exchange Traded FundJEPI0.2%
Taiwan Semiconductor ManufacturingTSM0.2%
iShares Ibonds DEC 2026 Term ETFIBDR0.2%

Portfolio by sector

● No sector 35%
● Consumer Discretionary 19%
● Information Technology 17%
● Financials 9%
● Communication Services 6%
● Health Care 5%
● Industrials 4%
● Energy 2%
● Consumer Staples 2%
● Materials 1%
● Real Estate 1%
● Utilities 1%

Declared options (9)

Besides stocks, Harbor Investment Advisory declared 8 puts (they gain if the stock falls) and 1 call (they gain if it rises) with a notional of $3.1M. The 13F reports the value of the underlying shares, not the premium paid, so these figures look large and are not added to the portfolio. Nor does it say whether the option is bought or written, or its strike or expiry: it may be a hedge.

PUTIshares Bitcoin Trust ETFIBIT$1.7M
CALLState Str Spdr S&P 500 ETF TSPY$381K
PUTAppleAAPL$266K
PUTBroadcomAVGOnew this quarter$246K
PUTMicrosoftMSFTnew this quarter$154K
PUTInvesco QQQ Trust Series 1 ETFQQQ$148K
PUTAmazon.comAMZNnew this quarter$80.7K
PUTNVIDIANVDA$68.5K
PUTIntelINTCnew this quarter$60.1K

Stakes above 5% (13D/13G)

Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.

How we classify it

Type not verified: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.

Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%; more than 20% is ETFs. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided

Managers of a similar size

A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.

City of London Investment ManagementInvestment firm · $1.5 bn
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Redmile GroupInvestment firm · $1.5 bn
Fairholme Capital ManagementInvestment firm · $1.5 bn