Frederick (Shad) Rowe - Greenbrier Partners Capital Management Investment Strategy & Portfolio Analysis
How Greenbrier Partners Capital Management allocates capital, manages risk, and constructs its portfolio — based on SEC 13F filings.
As of Mar 31, 2026, Frederick (Shad) Rowe's Greenbrier Partners Capital Management portfolio reflects a highly concentrated, high-conviction approach across 11 reported 13F positions. Portfolio returns are primarily driven by a small set of mega-cap compounders, with the top five holdings accounting for approximately 78% of total exposure and Apple alone contributing ~23%. While the portfolio includes 11 positions, economic outcomes are highly concentrated in a narrow set of large-cap technology and growth-oriented names, indicating a meaningful divergence between structural diversification and return concentration. Exposure to high-growth and technology-oriented segments is elevated relative to peers, with performance anchored in growth-oriented names across communication services, technology, and consumer staples. The portfolio exhibits extremely low turnover, reinforcing a patient, conviction-led investment approach. Distinctive traits include Long-Term Holder, Moderately Concentrated, Economically Concentrated.
Investment Style
Value, growth, quality, and behavioral classification from latest 13F holdings.
Primary type: Growth-Oriented Investor
Traits: Long-Term Holder, Moderately Concentrated, Economically Concentrated
Turnover profile
Buy & Hold
Holding horizon
Long-Term
Portfolio Construction
Concentration and position sizing in the latest filing.
Portfolio construction is highly concentrated: top three names represent 57.6% of assets, top five 77.7%, and the largest single position is 23.1%.
Top 3 weight
57.6%
Top 5 weight
77.7%
Top 10 weight
99.1%
Largest position
23.1%
Top holdings: Apple Inc., Meta Platforms, Inc., Costco Wholesale Corporation, Alphabet Inc., Amazon.com, Inc. — view full holdings
Sector Preferences
Where capital is allocated by sector.
Capital is tilted toward Communication Services and Technology, with 7 sectors represented in the latest filing.
Leading sectors: Communication Services, Technology, Consumer Defensive
Risk Framework
Concentration, diversification, and turnover tolerance.
This investor accepts high single-name risk (largest position 23.1%, top ten 99.1%) and low economic diversification (HHI 0.06). Turnover tolerance maps to a buy & hold profile.
Largest position
23.1%
Top 10 weight
99.1%
Max sector
37.5%
Diversification
Low
Strategy Evolution
How the strategy changed between the two most recent filing periods.
Dec 31, 2025 → Mar 31, 2026
- Position count decreased from 12 to 11 (-1 names).
- Top-five concentration rose from 76.1% to 77.7%.
- Quarter-over-quarter portfolio weight turnover: 5.3%.
For trade-level changes, see the Activity page. View activity.
Similar Investors
Peer group with comparable portfolio behavior.
Similar-investor comparisons are coming soon.