East Coast Asset Management, LLC. logo

East Coast Asset Management, LLC. Portfolio Analytics

Investment Analysis & Holdings Breakdown

Comprehensive portfolio analytics for East Coast Asset Management, LLC. with $319.2M in long positions as of Q3 2025, 27% allocated to Communication Services, and 74% concentrated in top 10 positions.

Portfolio Value
$319.2M
Top 10 Concentration
74%
Top Sector
Communication Services (27%)
US Exposure
100%
Market Cap Focus
Mega Cap
Countries
3

Composition Analysis

Portfolio breakdown by sector, industry, and market capitalization

Sector Allocation

Communication Services: 26.50%Communication ServicesIndustrials: 18.10%IndustrialsFinancial Services: 16.60%Financial ServicesConsumer Cyclical: 16.10%Consumer CyclicalBasic Materials: 12.20%Basic MaterialsTechnology: 5.00%ETF: 2.80%Healthcare: 1.30%Consumer Defensive: 1.20%Real Estate: 0.10%
Communication Services
26.50%
Industrials
18.10%
Financial Services
16.60%
Consumer Cyclical
16.10%
Basic Materials
12.20%
Technology
5.00%
ETF
2.80%
Healthcare
1.30%
Consumer Defensive
1.20%
Real Estate
0.10%

Industry Breakdown

35 industries across all sectors

Internet Content & Information: 25.32%Internet Content & InformationAerospace & Defense: 12.30%Aerospace & DefenseChemicals - Specialty: 12.19%Chemicals - SpecialtyAuto - Manufacturers: 9.65%Auto - ManufacturersFinancial - Credit Services: 6.07%Insurance - Diversified: 5.70%Specialty Retail: 4.22%Consumer Electronics: 3.14%ETF: 2.83%26 more: 18.59%26 more
Internet Content & Information
Communication Services
25.32%
Aerospace & Defense
Industrials
12.30%
Chemicals - Specialty
Basic Materials
12.19%
Auto - Manufacturers
Consumer Cyclical
9.65%
Financial - Credit Services
Financial Services
6.07%
Insurance - Diversified
Financial Services
5.70%
Specialty Retail
Consumer Cyclical
4.22%
Consumer Electronics
Technology
3.14%
ETF
ETF
2.83%
Financial - Data & Stock Exchanges
Financial Services
2.15%
Apparel - Retail
Consumer Cyclical
2.12%
Agricultural - Machinery
Industrials
1.47%

Filter by Sector

Select a sector to filter industries

Market Cap Distribution

Mega Cap (> $200B): 56.47%Mega Cap (> $200B)Large Cap ($10B - $200B): 28.65%Large Cap ($10B - $200B)Mid Cap ($2B - $10B): 12.05%Mid Cap ($2B - $10B)N/A (ETF or Unknown): 2.83%
Mega Cap (> $200B)
56.47%
Large Cap ($10B - $200B)
28.65%
Mid Cap ($2B - $10B)
12.05%
N/A (ETF or Unknown)
2.83%

Portfolio Concentration

Top 10 Holdings %
73.97%
Top 20 Holdings %
88.47%
Top 50 Holdings %
98.44%
Top 100 Holdings %
100.0%

Geographic Exposure

Portfolio breakdown by country of incorporation

Domestic (US)
99.81%
International
0.186%
Countries
3
Largest Int'l Market
Italy - 0.11%
United States of America
99.81% ($318.6M)
66 holdings
Italy
0.11% ($361.5K)
1 holdings
Ireland
0.07% ($230.9K)
1 holdings

Holding Behavior

Investment patterns and position management analysis

Portfolio Stability & Commitment

Avg. Top 10
28.8 quarters
Avg. Top 20
35.3 quarters
Avg. All Positions
35.2 quarters
Median Holding Period
49.5 quarters
Persistence Rate
95.59%
Persistent Holdings Weight
99.78%
Persistent Positions
65
Longest Held
SPDR S&P 500 ETF Trust logo
SPDR S&P 500 ETF TrustSPY - 51 quarters

Position Sizing & Influence

Current Quarter

Avg. New Position
0.07%
Avg. Position Weight
1.47%
Largest Position
Alphabet Inc. Class C Capital Stock logo
Alphabet Inc. Class C Capital StockGOOG - 15.28%
Largest Ownership Stake
Perimeter Solutions, Inc. logo
Perimeter Solutions, Inc.PRM - 1.07%
Avg. Ownership Stake
0.13%
Ownership Stake >5%
0
Ownership Stake >1%
1

Historical (Since Q4 2012)

Avg. New Position
0.44%
Avg. Ownership Stake
0.06%
Largest Position
Meta Platforms, Inc. Class A Common Stock logo
Meta Platforms, Inc. Class A Common StockMETA - 20.93% (Q2 2021)
Largest Ownership Stake
Perimeter Solutions, Inc. logo
Perimeter Solutions, Inc.PRM - 1.75% (Q2 2022)

Portfolio Turnover

Current Quarter

Turnover Ratio
4.3%
Value Traded
$13.83M
Positions Added
1
Positions Exited
3

Historical (Since Q4 2012)

Avg. Turnover Ratio
7.7%
Avg. Positions Added
9
Avg. Positions Exited
9
Highest Turnover
50.0%
Q4 2012
Lowest Turnover
0.1%
Q4 2020

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