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.

Highly Concentrated High Conviction Growth

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

View full sector allocation

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.