Harbor Advisory Corp.

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed April 29, 2024), Harbor Advisory Corp. reported 86 stock positions worth $293.8 million. Its top holding was Vanguard S&P 500 ETF (VOO) at 6.4% of the portfolio, followed by Vanguard Ftse Europe ETF (VGK, 3.9%) and Berkshire Hathaway Class B (BRK.B, 3.9%). Compared with Q4 2023, it opened 5 new positions, sold out of 3, added to 7 and reduced 35. The biggest buy was iShares Ibonds Dec 2028 ETF (IBDT, shares +25%) and the biggest sale Apple (AAPL, shares −1%).

Most Recent 13F
Q2 2026
Location
PORTSMOUTH, NH
CIK
0001100710
Portfolio Value
$293.8M (Q1 2024)
SEC Filing
0001100710-24-000002 ↗ filed Apr 29, 2024

Holdings Value

0$100.0M$200.0M$300.0M$400.0M Q1 2024: $293.8M $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 Q3 2025 Q4 2025: $330.6M Q4 2025 Q1 2026: $332.8M Q1 2026 Q2 2026: $373.7M Q2 2026

Holdings 86 stocks · $293.8M

VOO Vanguard S&P 500 ETF 6.41% 39,159 $18.8M Reduce -0.2%
VGK Vanguard Ftse Europe ETF 3.95% 172,248 $11.6M Reduce -0.6%
BRK.B Berkshire Hathaway Inc. Class B 3.90% 27,242 $11.5M Reduce -1.5%
GOOGL Alphabet Inc. Class A 3.83% 74,554 $11.3M Reduce -2.8%
SRLN SS Blackstone Sr Loan ETF 3.45% 240,357 $10.1M Reduce -0.2%
IVV iShares Core S&P 500 ETF 3.36% 18,791 $9.9M Reduce -7.3%
AAPL Apple Inc. 3.24% 55,520 $9.5M Reduce -0.8%
VWO Vanguard Ftse Emerging Marke 3.21% 225,770 $9.4M Reduce -0.6%
AMZN Amazon.com Inc. 3.11% 50,656 $9.1M Reduce -1.0%
IJH iShares Core S&P Midcap ETF 2.98% 143,988 $8.7M Reduce -1.5%
VB Vanguard Most SM-Cap ETF-Usd 2.69% 34,634 $7.9M Add +0.8%
BIP Brookfield Infrastructure Pa 2.68% 251,993 $7.9M Reduce -1.6%
IJR iShares Core S&P Small-Cap E 2.63% 69,781 $7.7M Add +0.1%
FLRN SS SPDR BB Ig Float RT ETF 2.54% 242,425 $7.5M No change
JPM JPMorgan Chase & Co. 2.53% 37,042 $7.4M Reduce -0.5%
EEMS iShares MSCI Emerging MKT SM 2.23% 111,139 $6.5M Reduce -1.1%
VO Vngrd Mrngstr MD-Cap ETF-Usd 2.15% 25,281 $6.3M Add +0.2%
TMO Thermo Fisher Scientific Inc. 2.07% 10,457 $6.1M Reduce -0.6%
MSFT Microsoft Corp. 2.06% 14,377 $6.0M Reduce -2.0%
JNJ Johnson & Johnson 1.97% 36,556 $5.8M Add +6.2%
IVOO Vanguard S&P Mid-Cap 400 ETF 1.83% 52,203 $5.4M Reduce -0.3%
PEP Pepsico Inc. 1.80% 30,272 $5.3M No change
ABBV Abbvie Inc. 1.58% 25,498 $4.6M Reduce -1.9%
SCZ iShares MSCI Eafe Small-Cap 1.53% 70,900 $4.5M Reduce -1.6%
ABT Abbott Laboratories 1.43% 37,036 $4.2M Reduce -0.8%
VIOO Vanguard S&P Small-Cap 600 E 1.39% 40,206 $4.1M Reduce -0.6%
IBDQ iShares Ibonds Dec 2025 Term 1.34% 158,086 $3.9M No change
SOXX iShares Semiconductor ETF 1.32% 17,145 $3.9M Reduce -1.5%
IBDP iShares Ibonds Dec 2024 Term 1.31% 153,173 $3.8M No change
MRK Merck & Co. Inc. 1.29% 28,769 $3.8M Reduce -0.7%
ENB Enbridge Inc. 1.20% 97,284 $3.5M No change
PFE Pfizer Inc. 1.17% 123,365 $3.4M Add +0.2%
IJT iShares S&P Small-Cap 600 GR 1.15% 25,784 $3.4M Reduce -5.5%
XBI SS SPDR S&P Biotech ETF 1.08% 33,440 $3.2M Reduce -0.2%
SPDW Ste STR SPDR PT DW Eu ETF 0.98% 80,440 $2.9M No change
IBDT iShares Ibonds Dec 2028 ETF 0.93% 110,188 $2.7M Add +24.9%
SPEM State Street SP PTF Em ETF 0.88% 71,121 $2.6M No change
DIS The Walt Disney Co. filed as DISNEY WALT CO 0.87% 20,835 $2.5M No change
V Visa Inc. Class A 0.86% 9,070 $2.5M Reduce -1.5%
PFF iShares Preferred & Income S 0.84% 76,921 $2.5M No change
DGRO iShares Core Dividend Growth 0.83% 41,823 $2.4M Reduce -12.2%
HYBL SS Blackstone High Inc. ETF 0.81% 84,058 $2.4M No change
CSCO Cisco Systems Inc. 0.78% 45,797 $2.3M No change
LOW Lowe's Cos Inc. 0.74% 8,486 $2.2M Reduce -1.8%
EFA iShares MSCI Eafe ETF 0.70% 25,786 $2.1M No change
XSD SS SPDR S&P Semiconductor 0.63% 7,943 $1.8M No change
MCD McDonald's Corp. 0.62% 6,430 $1.8M Reduce -17.2%
IBB iShares Biotechnology ETF 0.60% 12,774 $1.8M No change
HD Home Depot Inc. 0.52% 4,007 $1.5M No change
MDY State Street SPDR S&P Midcap 0.52% 2,743 $1.5M No change
EEM iShares MSCI Emerging Market 0.51% 36,314 $1.5M No change
PG The Procter & Gamble Co. 0.50% 9,056 $1.5M No change
XOM Exxon Mobil Corp. 0.49% 12,304 $1.4M No change
FNDE Schwab Fndmntl Em MRK Eq ETF 0.46% 48,443 $1.3M No change
GOOG Alphabet Inc. Class C 0.41% 7,825 $1.2M No change
WY Weyerhaeuser Co. 0.40% 32,785 $1.2M Reduce -4.0%
IBDR iShares Ibonds Dec 2026 Term 0.39% 47,760 $1.1M No change
VNQ Vanguard Real Estate ETF 0.36% 12,081 $1.0M Reduce -4.9%
BIPC Brookfield Infrastructure-A 0.35% 28,258 $1.0M Reduce -8.1%
VTI VG Morningstar TS MKT ETF-US 0.34% 3,877 $1.0M No change
BAC Bank of America Corp. filed as BANK AMERICA CORP 0.31% 23,695 $899K No change
VNQI Vanguard GLBL Ex-US Real Est 0.25% 17,325 $730K No change
IBDS Ishrs Ibnds Dec 27 Corp. ETF 0.22% 26,695 $635K Add +1.4%
PSK SS SPDR Ice Pref Sec ETF 0.20% 17,075 $595K No change
IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS 0.20% 3,036 $580K No change
KO The Coca-Cola Co. 0.19% 9,130 $559K No change
NVDA Nvidia Corp. 0.14% 471 $426K No change
SPY SS SPDR S&P 500 ETF Trust-US 0.14% 791 $414K No change
AGG iShares Core U.S. Aggregate 0.14% 4,150 $406K No change
IWF iShares Russell 1000 Growth 0.12% 1,050 $354K Reduce -22.2%
BKLN Invesco Senior Loan ETF 0.12% 16,549 $350K No change
TDIV FT Nasdaq Tech DVD Index FD 0.12% 5,000 $348K New
XSOE Wisdmtree Emerg MKT Ex-St Ow 0.11% 10,745 $317K No change
AVGO Broadcom Inc. 0.11% 237 $314K Reduce -15.7%
GE General Electric 0.10% 1,728 $303K No change
SCHD Schwab US DVD Equity ETF 0.09% 3,409 $275K No change
MDLZ Mondelez International Inc. Class A 0.09% 3,786 $265K Reduce -16.6%
INTC Intel Corp. 0.09% 5,876 $260K No change
PM Philip Morris International 0.08% 2,645 $242K New
SPYM Ste STR SPDR PT S&P 500 ETF 0.08% 3,936 $242K No change
ZBH Zimmer Biomet Holdings Inc. 0.08% 1,729 $228K No change
IEFA iShares Core MSCI Eafe ETF 0.07% 2,849 $211K No change
EMR Emerson Electric Co. 0.07% 1,832 $208K New
CVX Chevron Corp. 0.07% 1,308 $206K New
HON Honeywell International Inc. 0.07% 990 $203K Reduce -24.3%
CRM Salesforce Inc. 0.07% 671 $202K New

Portfolio Sells Q4 2023 → Q1 2024

AAPL Apple Inc. Reduce -0.8% 3.24% −0.62
BIP Brookfield Infrastructure Pa Reduce -1.6% 2.68% −0.21
MCD McDonald's Corp. Reduce -17.2% 0.62% −0.21
SRLN SS Blackstone Sr Loan ETF Reduce -0.2% 3.45% −0.17
VWO Vanguard Ftse Emerging Marke Reduce -0.6% 3.21% −0.13
DHR Danaher Corp. Sold out 0.00% −0.11
IVV iShares Core S&P 500 ETF Reduce -7.3% 3.36% −0.10
EEMS iShares MSCI Emerging MKT SM Reduce -1.1% 2.23% −0.10
DGRO iShares Core Dividend Growth Reduce -12.2% 0.83% −0.09
VUG Vanguard Mrngstar GR ETF-Sui Sold out 0.00% −0.09
ZTS Zoetis Inc. Sold out 0.00% −0.08
IJT iShares S&P Small-Cap 600 GR Reduce -5.5% 1.15% −0.07
SCZ iShares MSCI Eafe Small-Cap Reduce -1.6% 1.53% −0.07
VGK Vanguard Ftse Europe ETF Reduce -0.6% 3.95% −0.05
VIOO Vanguard S&P Small-Cap 600 E Reduce -0.6% 1.39% −0.05
VNQ Vanguard Real Estate ETF Reduce -4.9% 0.36% −0.05
BIPC Brookfield Infrastructure-A Reduce -8.1% 0.35% −0.04
ABT Abbott Laboratories Reduce -0.8% 1.43% −0.04
HON Honeywell International Inc. Reduce -24.3% 0.07% −0.03
MDLZ Mondelez International Inc. Class A Reduce -16.6% 0.09% −0.03
IWF iShares Russell 1000 Growth Reduce -22.2% 0.12% −0.03
WY Weyerhaeuser Co. Reduce -4.0% 0.40% −0.02
AVGO Broadcom Inc. Reduce -15.7% 0.11% −0.01
GOOGL Alphabet Inc. Class A Reduce -2.8% 3.83% −0.00
V Visa Inc. Class A Reduce -1.5% 0.86% +0.00
XBI SS SPDR S&P Biotech ETF Reduce -0.2% 1.08% +0.01
LOW Lowe's Cos Inc. Reduce -1.8% 0.74% +0.05
IVOO Vanguard S&P Mid-Cap 400 ETF Reduce -0.3% 1.83% +0.07
TMO Thermo Fisher Scientific Inc. Reduce -0.6% 2.07% +0.07
IJH iShares Core S&P Midcap ETF Reduce -1.5% 2.98% +0.08
MSFT Microsoft Corp. Reduce -2.0% 2.06% +0.08
SOXX iShares Semiconductor ETF Reduce -1.5% 1.32% +0.12
ABBV Abbvie Inc. Reduce -1.9% 1.58% +0.14
MRK Merck & Co. Inc. Reduce -0.7% 1.29% +0.16
JPM JPMorgan Chase & Co. Reduce -0.5% 2.53% +0.26
VOO Vanguard S&P 500 ETF Reduce -0.2% 6.41% +0.27
AMZN Amazon.com Inc. Reduce -1.0% 3.11% +0.33
BRK.B Berkshire Hathaway Inc. Class B Reduce -1.5% 3.90% +0.37

Portfolio Buys Q4 2023 → Q1 2024

IBDT iShares Ibonds Dec 2028 ETF Add +24.9% 0.93% +0.14
TDIV FT Nasdaq Tech DVD Index FD New 0.12% +0.12
PM Philip Morris International New 0.08% +0.08
VB Vanguard Most SM-Cap ETF-Usd Add +0.8% 2.69% +0.07
EMR Emerson Electric Co. New 0.07% +0.07
CVX Chevron Corp. New 0.07% +0.07
CRM Salesforce Inc. New 0.07% +0.07
VO Vngrd Mrngstr MD-Cap ETF-Usd Add +0.2% 2.15% +0.05
JNJ Johnson & Johnson Add +6.2% 1.97% +0.04
IBDS Ishrs Ibnds Dec 27 Corp. ETF Add +1.4% 0.22% −0.01
IJR iShares Core S&P Small-Cap E Add +0.1% 2.63% −0.08
PFE Pfizer Inc. Add +0.2% 1.17% −0.10

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