Harbor Advisory Corp.

In its 13F for Q3 2025 (holdings as of September 30, 2025, filed November 12, 2025), Harbor Advisory Corp. reported 80 stock positions worth $338.2 million. Its top holding was Vanguard S&P 500 ETF (VOO) at 6.3% of the portfolio, followed by Alphabet Class A (GOOGL, 4.9%) and Amazon.com (AMZN, 4.4%). Compared with Q2 2025, it opened 1 new position, sold out of 2, added to 19 and reduced 27. The biggest buy was iShares Core S&P Small-Cap E (IJR, shares +6%) and the biggest sale Amazon.com (AMZN, shares −0%).

Most Recent 13F
Q2 2026
Location
PORTSMOUTH, NH
CIK
0001100710
Portfolio Value
$338.2M (Q3 2025)
SEC Filing
0001765380-25-000479 ↗ filed Nov 12, 2025

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $293.8M Q1 2024 Q2 2024: $289.5M Q2 2024 Q3 2024: $306.4M Q3 2024 Q4 2024: $304.4M Q4 2024 Q1 2025: $297.9M Q1 2025 Q2 2025: $313.8M Q2 2025 Q3 2025: $338.2M $338.2M Q3 2025 Q4 2025: $330.6M Q4 2025 Q1 2026: $332.8M Q1 2026 Q2 2026: $373.7M Q2 2026

Holdings 80 stocks · $338.2M

VOO Vanguard S&P 500 ETF 6.28% 34,689 $21.2M Reduce -0.3%
GOOGL Alphabet Inc. Class A 4.94% 68,708 $16.7M Reduce -2.0%
AMZN Amazon.com Inc. 4.35% 67,009 $14.7M Reduce -0.4%
FTSL First Trust Senior Loan ETF 4.19% 308,963 $14.2M Add +2.9%
VGK Vanguard Ftse Europe ETF 4.11% 173,974 $13.9M Add +0.7%
VWO Vanguard Ftse Emerging Marke 3.87% 241,526 $13.1M Add +2.4%
IVV iShares Core S&P 500 ETF 3.74% 18,884 $12.6M Reduce -1.4%
BRK.B Berkshire Hathaway Inc. Class B 3.70% 24,858 $12.5M Reduce -1.2%
AAPL Apple Inc. 3.59% 47,685 $12.1M Reduce -2.5%
IJH iShares Core S&P Midcap ETF 3.23% 167,112 $10.9M Add +5.7%
VB Vanguard Most SM-Cap ETF-Usd 3.21% 42,702 $10.9M Add +2.8%
SOXX iShares Semiconductor ETF 2.96% 36,872 $10.0M Reduce -0.5%
IJR iShares Core S&P Small-Cap E 2.94% 83,611 $9.9M Add +6.5%
VO Vngrd Mrngstr MD-Cap ETF-Usd 2.92% 33,659 $9.9M Add +3.5%
JPM JPMorgan Chase & Co. 2.73% 29,290 $9.2M Reduce -6.5%
MSFT Microsoft Corp. 2.65% 17,325 $9.0M Reduce -0.4%
BIP Brookfield Infrastructure Pa 2.50% 256,797 $8.4M Add +0.7%
EEMS iShares MSCI Emerging MKT SM 2.48% 123,302 $8.4M Add +2.0%
FLRN SS SPDR BB Ig Float RT ETF 2.21% 242,150 $7.5M Add +1.2%
JNJ Johnson & Johnson 1.89% 34,386 $6.4M Reduce -0.8%
SCZ iShares MSCI Eafe Small-Cap 1.62% 71,410 $5.5M Add +4.4%
IVOO Vanguard S&P Mid-Cap 400 ETF 1.61% 49,445 $5.5M Reduce -0.0%
ABBV Abbvie Inc. 1.50% 21,877 $5.1M Reduce -6.6%
SPDW Ste STR SPDR PT DW Eu ETF 1.45% 114,577 $4.9M Reduce -0.1%
PFE Pfizer Inc. 1.43% 189,924 $4.8M Reduce -0.0%
IBDT iShares Ibonds Dec 2028 ETF 1.37% 181,360 $4.6M Add +12.7%
VIOO Vanguard S&P Small-Cap 600 E 1.31% 40,044 $4.4M Reduce -0.0%
SPEM State Street SP PTF Em ETF 1.23% 88,911 $4.2M Reduce -0.2%
PEP Pepsico Inc. 1.23% 29,575 $4.2M Add +1.2%
IBDQ iShares Ibonds Dec 2025 Term 1.21% 162,106 $4.1M No change
ABT Abbott Laboratories 1.14% 28,836 $3.9M Reduce -6.2%
IJT iShares S&P Small-Cap 600 GR 1.08% 25,784 $3.6M No change
V Visa Inc. Class A 0.94% 9,336 $3.2M No change
CSCO Cisco Systems Inc. 0.89% 43,955 $3.0M No change
XSD SS SPDR S&P Semiconductor 0.71% 7,548 $2.4M Reduce -0.1%
EFA iShares MSCI Eafe ETF 0.69% 25,146 $2.3M No change
MRK Merck & Co. Inc. 0.65% 26,300 $2.2M Reduce -0.0%
LOW Lowe's Cos Inc. 0.63% 8,523 $2.1M No change
DGRO iShares Core Dividend Growth 0.62% 30,735 $2.1M Reduce -8.3%
HD Home Depot Inc. 0.58% 4,824 $2.0M Add +6.6%
IBDU iShares Ibonds Dec 2029 Term 0.55% 78,820 $1.8M No change
EEM iShares MSCI Emerging Market 0.54% 34,039 $1.8M Reduce -1.4%
FNDE Schwab Fndmntl Em MRK Eq ETF 0.52% 48,443 $1.8M No change
GOOG Alphabet Inc. Class C 0.50% 6,980 $1.7M Reduce -2.1%
CVX Chevron Corp. 0.50% 10,842 $1.7M Add +0.9%
MDY State Street SPDR S&P Midcap 0.48% 2,743 $1.6M No change
MCD McDonald's Corp. 0.47% 5,232 $1.6M Reduce -8.3%
IBDR iShares Ibonds Dec 2026 Term 0.46% 63,891 $1.6M Add +11.3%
XOM Exxon Mobil Corp. 0.41% 12,194 $1.4M No change
PG The Procter & Gamble Co. 0.40% 8,806 $1.4M No change
PFF iShares Preferred & Income S 0.39% 41,623 $1.3M No change
VTI VG Morningstar TS MKT ETF-US 0.31% 3,242 $1.1M Reduce -1.1%
BAC Bank of America Corp. filed as BANK AMERICA CORP 0.31% 20,577 $1.1M No change
RSP Invesco S&P 500 Equal Weight 0.29% 5,205 $987K No change
IBDS Ishrs Ibnds Dec 27 Corp. ETF 0.27% 37,533 $914K Add +7.1%
BIPC Brookfield Infrastructure-A 0.26% 21,714 $893K Add +9.9%
NVDA Nvidia Corp. 0.26% 4,710 $879K No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.25% 3,036 $857K No change
AVGO Broadcom Inc. 0.23% 2,370 $782K No change
VNQ Vanguard Real Estate ETF 0.16% 5,924 $542K Reduce -2.5%
SPY SS SPDR S&P 500 ETF Trust-US 0.16% 794 $529K Add +0.4%
GE General Electric filed as GE AEROSPACE 0.15% 1,728 $520K No change
TDIV FT Nasdaq Tech DVD Index FD 0.15% 5,000 $493K No change
IWF iShares Russell 1000 Growth 0.15% 1,050 $492K No change
KO The Coca-Cola Co. 0.14% 7,092 $470K No change
ACWX iShares MSCI Acwi Ex US ETF 0.13% 6,875 $447K No change
VNQI Vanguard GLBL Ex-US Real Est 0.13% 9,125 $436K Reduce -15.8%
PM Philip Morris International 0.13% 2,645 $429K No change
XSOE Wisdmtree Emerg MKT Ex-St Ow 0.12% 10,745 $408K No change
SPYM Ste STR SPDR PT S&P 500 ETF 0.09% 3,936 $308K No change
ASML ASML Holding NV-NY Reg SHS 0.08% 295 $286K No change
META Meta Platforms Inc. Class A 0.08% 359 $264K No change
GEV GE Vernova Inc. 0.08% 428 $263K No change
IEMG iShares Core MSCI Emerging 0.07% 3,810 $251K No change
GWW WW Grainger Inc. filed as GRAINGER W W INC 0.07% 255 $243K No change
EMR Emerson Electric Co. 0.07% 1,832 $240K No change
AMAT Applied Materials Inc. 0.07% 1,150 $235K No change
SCHD Schwab US DVD Equity ETF 0.07% 8,550 $233K Reduce -16.4%
COST Costco Wholesale Corp. 0.06% 227 $210K No change
IEFA iShares Core MSCI Eafe ETF 0.06% 2,352 $205K New

Portfolio Sells Q2 2025 → Q3 2025

AMZN Amazon.com Inc. Reduce -0.4% 4.35% −0.35
DIS The Walt Disney Co. Sold out 0.00% −0.21
BRK.B Berkshire Hathaway Inc. Class B Reduce -1.2% 3.70% −0.20
ABT Abbott Laboratories Reduce -6.2% 1.14% −0.19
JPM JPMorgan Chase & Co. Reduce -6.5% 2.73% −0.16
MSFT Microsoft Corp. Reduce -0.4% 2.65% −0.10
WY Weyerhaeuser Co. Sold out 0.00% −0.09
DGRO iShares Core Dividend Growth Reduce -8.3% 0.62% −0.06
MCD McDonald's Corp. Reduce -8.3% 0.47% −0.06
IVV iShares Core S&P 500 ETF Reduce -1.4% 3.74% −0.05
IVOO Vanguard S&P Mid-Cap 400 ETF Reduce -0.0% 1.61% −0.04
PFE Pfizer Inc. Reduce -0.0% 1.43% −0.04
VNQI Vanguard GLBL Ex-US Real Est Reduce -15.8% 0.13% −0.03
SPDW Ste STR SPDR PT DW Eu ETF Reduce -0.1% 1.45% −0.03
SCHD Schwab US DVD Equity ETF Reduce -16.4% 0.07% −0.02
VNQ Vanguard Real Estate ETF Reduce -2.5% 0.16% −0.01
VOO Vanguard S&P 500 ETF Reduce -0.3% 6.28% −0.01
MRK Merck & Co. Inc. Reduce -0.0% 0.65% −0.01
VTI VG Morningstar TS MKT ETF-US Reduce -1.1% 0.31% −0.00
EEM iShares MSCI Emerging Market Reduce -1.4% 0.54% +0.01
VIOO Vanguard S&P Small-Cap 600 E Reduce -0.0% 1.31% +0.02
SPEM State Street SP PTF Em ETF Reduce -0.2% 1.23% +0.02
XSD SS SPDR S&P Semiconductor Reduce -0.1% 0.71% +0.09
GOOG Alphabet Inc. Class C Reduce -2.1% 0.50% +0.10
ABBV Abbvie Inc. Reduce -6.6% 1.50% +0.11
SOXX iShares Semiconductor ETF Reduce -0.5% 2.96% +0.14
JNJ Johnson & Johnson Reduce -0.8% 1.89% +0.20
AAPL Apple Inc. Reduce -2.5% 3.59% +0.39
GOOGL Alphabet Inc. Class A Reduce -2.0% 4.94% +1.00

Portfolio Buys Q2 2025 → Q3 2025

IJR iShares Core S&P Small-Cap E Add +6.5% 2.94% +0.20
VWO Vanguard Ftse Emerging Marke Add +2.4% 3.87% +0.15
IJH iShares Core S&P Midcap ETF Add +5.7% 3.23% +0.10
VB Vanguard Most SM-Cap ETF-Usd Add +2.8% 3.21% +0.07
IBDT iShares Ibonds Dec 2028 ETF Add +12.7% 1.37% +0.07
IEFA iShares Core MSCI Eafe ETF New 0.06% +0.06
HD Home Depot Inc. Add +6.6% 0.58% +0.05
SCZ iShares MSCI Eafe Small-Cap Add +4.4% 1.62% +0.04
VO Vngrd Mrngstr MD-Cap ETF-Usd Add +3.5% 2.92% +0.03
IBDR iShares Ibonds Dec 2026 Term Add +11.3% 0.46% +0.02
CVX Chevron Corp. Add +0.9% 0.50% +0.01
BIPC Brookfield Infrastructure-A Add +9.9% 0.26% +0.00
SPY SS SPDR S&P 500 ETF Trust-US Add +0.4% 0.16% +0.00
IBDS Ishrs Ibnds Dec 27 Corp. ETF Add +7.1% 0.27% −0.00
PEP Pepsico Inc. Add +1.2% 1.23% −0.00
EEMS iShares MSCI Emerging MKT SM Add +2.0% 2.48% −0.02
FLRN SS SPDR BB Ig Float RT ETF Add +1.2% 2.21% −0.14
VGK Vanguard Ftse Europe ETF Add +0.7% 4.11% −0.16
FTSL First Trust Senior Loan ETF Add +2.9% 4.19% −0.20
BIP Brookfield Infrastructure Pa Add +0.7% 2.50% −0.23

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 82$373.7MVOO, IJH, GOOGL, VGK, IJR
Q1 2026 79$332.8MVOO, GOOGL, FTSL, VGK, IJH
Q4 2025 78$330.6MVOO, GOOGL, FTSL, AMZN, VGK
Q3 2025 80$338.2MVOO, GOOGL, AMZN, FTSL, VGK
Q2 2025 81$313.8MVOO, AMZN, FTSL, VGK, GOOGL
Q1 2025 83$297.9MVOO, BRK.B, AMZN, VGK, AAPL
Q4 2024 86$304.4MVOO, GOOGL, AAPL, BRK.B, IVV
Q3 2024 90$306.4MVOO, AAPL, VGK, BRK.B, GOOGL
Q2 2024 84$289.5MVOO, GOOGL, VGK, AAPL, BRK.B
Q1 2024 86$293.8MVOO, VGK, BRK.B, GOOGL, SRLN