HARBOR INVESTMENT ADVISORY, LLC

Diversified mechanical Mechanical CIK 1468792
League rank
#155
in Diversified mechanical · #3107 overall
Long book
$1.27B
Q1 2026
Positions
1227
Top-10 weight
38%
concentration
Last quarter
+12.4%
SPY +14.8%
Turnover
21%
of book per quarter

Strategy in plain words

auto-generated from filings

HARBOR INVESTMENT ADVISORY, LLC is a mechanically diversified allocator, running a $1.27B US long book across 1227 positions.

The portfolio is moderately concentrated (top 10 ≈ 38% of the book). Turnover is modest: positions are typically held for years. Current anchor positions: MARRIOTT INTERNATIONAL -CL A, APPLE INC, ALPHABET INC-CL A, AMAZON.COM INC, MICROSOFT CORP.

Over the last 9 quarters its long book ran on average 0.4pp per quarter behind the S&P 500, beating the index in 3 of 9 quarters. Its holdings are mechanical (indexing / client flows), so position changes carry no stock-picking signal.

Implied long-book return vs S&P 500

methodology: positions priced quarterly, no shorts/options
Fund long book S&P 500
Q1 2024
+2.2%
Q2 2024
+5.6%
Q3 2024
+3.7%
Q4 2024
-5.0%
Q1 2025
+8.1%
Q2 2025
+6.5%
Q3 2025
+5.4%
Q4 2025
-2.3%
Q1 2026
+12.4%

Sector allocation

Technology
31%
Services media
26%
Financials
12%
Consumer discretionary
11%
Healthcare
6%
Industrials
6%
Energy
2%
Materials
2%

Long book by quarter

$956.6M
Q1 2024
$957.8M
Q2 2024
$1.01B
Q3 2024
$1.07B
Q4 2024
$1.03B
Q1 2025
$1.12B
Q2 2025
$1.21B
Q3 2025
$1.33B
Q4 2025
$1.27B
Q1 2026

What does HARBOR INVESTMENT own?

Q1 2026 13F
CompanySectorSharesValue% of bookChange
MAR MARRIOTT INTERNATIONAL -CL AServices media533.9K$174.6M13.8%-5.7%
AAPL APPLE INCTechnology322.5K$81.8M6.5%-10.4%
GOOGL ALPHABET INC-CL ATechnology171.3K$49.3M3.9%-5.0%
AMZN AMAZON.COM INCConsumer discretionary230.9K$48.1M3.8%-25.4%
MSFT MICROSOFT CORPTechnology95.0K$35.2M2.8%-37.5%
BRK/B BERKSHIRE HATHAWAY INC-CL BFinancials64.2K$30.8M2.4%-72.9%
GOOG ALPHABET INC-CL CTechnology64.5K$18.5M1.5%-18.3%
JPM JPMORGAN CHASE & COFinancials55.8K$16.4M1.3%-19.4%
MA MASTERCARD INC - AServices media27.3K$13.6M1.1%-1.6%
NVDA NVIDIA CORPTechnology77.0K$13.4M1.1%-10.0%
V VISA INC-CLASS A SHARESServices media40.1K$12.1M1.0%-2.7%
JNJ JOHNSON & JOHNSONHealthcare40.8K$10.0M0.8%-3.3%
LLY ELI LILLY & COHealthcare9.9K$9.1M0.7%-1.7%
AVGO BROADCOM INCTechnology26.4K$8.2M0.6%-8.3%
AMGN AMGEN INCHealthcare22.9K$8.1M0.6%-2.5%
META META PLATFORMS INC-CLASS ATechnology13.8K$7.9M0.6%-6.5%
BLK BLACKROCK INCFinancials7.3K$7.0M0.6%-1.7%
WMT WALMART INCConsumer discretionary55.5K$6.9M0.5%-4.5%
XOM EXXON MOBIL CORPEnergy39.3K$6.7M0.5%-0.8%
COST COSTCO WHOLESALE CORPConsumer discretionary6.7K$6.7M0.5%-3.9%
BAC BANK OF AMERICA CORPFinancials121.0K$5.9M0.5%+9.7%
GEV GE VERNOVA INCIndustrials6.0K$5.2M0.4%-0.4%
TSLA TESLA INCIndustrials13.4K$5.0M0.4%-0.3%
GS GOLDMAN SACHS GROUP INCFinancials5.9K$5.0M0.4%+29.0%
ABBV ABBVIE INCHealthcare20.1K$4.4M0.3%-9.2%
UNH UNITEDHEALTH GROUP INCFinancials15.8K$4.3M0.3%-23.3%
HD HOME DEPOT INCConsumer discretionary12.1K$4.0M0.3%-13.9%
CRWD CROWDSTRIKE HOLDINGS INC - ATechnology10.2K$4.0M0.3%-5.0%
SBUX STARBUCKS CORPConsumer discretionary44.1K$3.9M0.3%-2.2%
AEM AGNICO EAGLE MINES LTDMaterials19.2K$3.9M0.3%+7.2%
PG PROCTER & GAMBLE CO/THEOther26.8K$3.9M0.3%+2.8%
CVX CHEVRON CORPEnergy17.6K$3.7M0.3%-3.0%
MKL MARKEL GROUP INCFinancials1.9K$3.6M0.3%+2.4%
HON HONEYWELL INTERNATIONAL INCIndustrials15.0K$3.4M0.3%-1.5%
CCJ CAMECO CORPMaterials29.0K$3.1M0.2%-4.8%
TJX TJX COMPANIES INCConsumer discretionary18.6K$3.0M0.2%-0.9%
AGI ALAMOS GOLD INC-CLASS AMaterials65.3K$2.9M0.2%-0.5%
GE GENERAL ELECTRICIndustrials10.1K$2.9M0.2%-1.1%
RTX RTX CORPIndustrials14.8K$2.9M0.2%-9.4%
ABT ABBOTT LABORATORIESHealthcare25.8K$2.6M0.2%-2.4%
CEG CONSTELLATION ENERGYUtilities9.4K$2.6M0.2%+1.3%
CSCO CISCO SYSTEMS INCTechnology33.3K$2.6M0.2%+3.1%
SU SUNCOR ENERGY INCEnergy38.8K$2.6M0.2%+2.0%
TXRH TEXAS ROADHOUSE INCConsumer discretionary14.2K$2.3M0.2%-9.2%
NFLX NETFLIX INCServices media23.7K$2.3M0.2%-51.2%
VRT VERTIV HOLDINGS CO-ATechnology8.9K$2.2M0.2%+0.9%

13F filing history

PeriodFormFiledEntriesReported valueFlagsSource
Q1 202613F-HRApr 23, 20261233$1.27B canonicalSEC ↗
Q4 202513F-HRJan 7, 20261230$1.33B canonicalSEC ↗
Q3 202513F-HROct 27, 20251180$1.21B canonicalSEC ↗
Q2 202513F-HRJul 1, 20251176$1.12B canonicalSEC ↗
Q1 202513F-HRApr 9, 20251176$1.03B canonicalSEC ↗
Q4 202413F-HRJan 16, 20251147$1.07B canonicalSEC ↗
Q3 202413F-HROct 4, 20241151$1.01B canonicalSEC ↗
Q2 202413F-HRJul 19, 20241306$958.3M canonicalSEC ↗
Q1 202413F-HRApr 12, 20241339$956.6M canonicalSEC ↗