Harbor Advisors LLC Portfolio Analytics

Investment Analysis & Holdings Breakdown

Comprehensive portfolio analytics for Harbor Advisors LLC with $649.2M in long positions as of Q3 2025, 32% allocated to Real Estate, and 63% concentrated in top 10 positions.

Portfolio Value: $649.2M
Top 10 Concentration: 63%
Top Sector: Real Estate (32%)
US Exposure: 94%
Market Cap Focus: Large Cap
Countries: 8

Composition Analysis

Portfolio breakdown by sector, industry, and market capitalization

Sector Allocation

Real Estate

31.70%

Financial Services

19.40%

Technology

17.10%

Communication Services

10.30%

Consumer Cyclical

6.40%

Industrials

5.70%

Energy

4.10%

Healthcare

1.60%

Basic Materials

1.20%

Consumer Defensive

0.70%

ETF

0.20%

Utilities

0.10%

Industry Breakdown

69 industries across all sectors

REIT - Specialty

Real Estate

30.50%

Internet Content & Information

Communication Services

8.03%

Semiconductors

Technology

6.80%

Consumer Electronics

Technology

5.82%

Financial - Capital Markets

Financial Services

5.24%

Specialty Retail

Consumer Cyclical

5.23%

Software - Infrastructure

Technology

3.94%

Oil & Gas Exploration & Production

Energy

3.48%

Banks - Regional

Financial Services

2.97%

Financial - Credit Services

Financial Services

2.59%

Banks - Diversified

Financial Services

2.54%

Financial - Data & Stock Exchanges

Financial Services

1.74%

Market Cap Distribution

Mega Cap (> $200B)

34.36%

Large Cap ($10B - $200B)

58.33%

Mid Cap ($2B - $10B)

4.11%

Small Cap ($300M - $2B)

2.29%

Nano Cap (< $50M)

0.18%

N/A (ETF or Unknown)

0.74%

Portfolio Concentration

Top 10 Holdings %

62.81%

Top 20 Holdings %

73.63%

Top 50 Holdings %

86.62%

Top 100 Holdings %

94.94%

Geographic Exposure

Portfolio breakdown by country of incorporation

Domestic (US)

93.5%

International

6.5%

Countries

Largest Int'l Market

Canada - 2.83%

United States of America

93.50% ($607.0M)

173 holdings

Canada

2.83% ($18.4M)

5 holdings

United Kingdom

1.52% ($9.9M)

4 holdings

Bermuda

1.49% ($9.6M)

4 holdings

Ireland

0.36% ($2.4M)

2 holdings

Netherlands

0.13% ($855.2K)

2 holdings

China

0.13% ($815.5K)

1 holdings

Taiwan

0.04% ($279.3K)

1 holdings

Holding Behavior

Investment patterns and position management analysis

Portfolio Stability & Commitment

Avg. Top 10: 34.7 quarters
Avg. Top 20: 33.6 quarters
Avg. All Positions: 19 quarters
Median Holding Period: 18 quarters
Persistence Rate: 83.33%
Persistent Holdings Weight: 97.78%
Persistent Positions: 160
Longest Held: Martin Marietta MaterialsMLM - 35 quarters

Position Sizing & Influence

Current Quarter

Avg. New Position: 0.05%
Avg. Position Weight: 0.52%
Largest Position: Equinix, Inc. Common Stock REITEQIX - 30.50%
Largest Ownership Stake: Ambac Financial Group, Inc.AMBC - 0.42%
Avg. Ownership Stake: 0.09%
Ownership Stake >5%: 0
Ownership Stake >1%: 0

Historical (Since Q4 2016)

Avg. New Position: 0.41%
Avg. Ownership Stake: 0.14%
Largest Position: Equinix, Inc. Common Stock REITEQIX - 52.16% (Q4 2016)
Largest Ownership Stake: Ambac Financial Group, Inc.AMBC - 0.56% (Q2 2021)

Portfolio Turnover

Current Quarter

Turnover Ratio: 0.7%
Value Traded: $4.83M
Positions Added: 6
Positions Exited: 9

Historical (Since Q4 2016)

Avg. Turnover Ratio: 2.7%
Avg. Positions Added: 12
Avg. Positions Exited: 9
Highest Turnover: 50.0%
Q4 2016
Lowest Turnover: 0.1%
Q3 2021

Harbor Advisors LLC Portfolio Analytics

Composition Analysis

Sector Allocation

Industry Breakdown

Filter by Sector

Market Cap Distribution

Portfolio Concentration

Geographic Exposure

Holding Behavior

Portfolio Stability & Commitment

Position Sizing & Influence

Current Quarter

Historical (Since Q4 2016)

Portfolio Turnover

Current Quarter

Historical (Since Q4 2016)

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