Fred Martin - Disciplined Growth Investors Investment Strategy & Portfolio Analysis
How Disciplined Growth Investors allocates capital, manages risk, and constructs its portfolio — based on SEC 13F filings.
According to the SEC 13F filed on Aug 14, 2026, Fred Martin's Disciplined Growth Investors portfolio reflects a quant / systematic investor approach across 58 reported 13F positions as of quarter-end Jun 30, 2026. Portfolio returns are distributed across holdings, with the top five positions representing approximately 31% of total exposure. The portfolio maintains structural breadth across 58 positions, with economic weighting tilted toward large-cap technology and growth-oriented names. Exposure to high-growth and technology-oriented segments is elevated relative to peers, with performance anchored in growth-oriented names across technology, unknown, and industrials. The portfolio exhibits low turnover, consistent with a buy-and-hold posture held through multiple reporting cycles. Distinctive traits include Long-Term Holder, Broadly Diversified, Structurally Diversified.
Investment Style
Value, growth, quality, and behavioral classification from latest 13F holdings.
Primary type: Quant / Systematic Investor
Traits: Long-Term Holder, Broadly Diversified, Structurally Diversified, Sector-Tilted
Turnover profile
Moderate
Holding horizon
Long-Term
Portfolio Construction
Concentration and position sizing in the latest filing.
Portfolio construction is lowly concentrated: top three names represent 20.7% of assets, top five 31.2%, and the largest single position is 7.3%.
Top 3 weight
20.7%
Top 5 weight
31.2%
Top 10 weight
49.4%
Largest position
7.3%
Top holdings: Plexus Corp., ViaSat, Inc., Pure Storage, Inc., Garmin, Arista Networks — view full holdings
Sector Preferences
Where capital is allocated by sector.
Capital is tilted toward Technology and Unknown, with 9 sectors represented in the latest filing.
Leading sectors: Technology, Unknown, Industrials
Risk Framework
Concentration, diversification, and turnover tolerance.
This investor accepts low single-name risk (largest position 7.3%, top ten 49.4%) and high economic diversification (HHI 0.02). Turnover tolerance maps to a moderate profile.
Largest position
7.3%
Top 10 weight
49.4%
Max sector
53.5%
Diversification
High
Strategy Evolution
How the strategy changed between the two most recent filing periods.
Mar 31, 2026 → Jun 30, 2026
- Position count decreased from 61 to 58 (-3 names).
- Top-five concentration rose from 28.8% to 31.2%.
- Largest holding changed from Garmin to Plexus Corp..
- Quarter-over-quarter portfolio weight turnover: 17.0%.
For trade-level changes, see the Activity page. View activity.
Similar Investors
Peer group with comparable portfolio behavior.
Similar-investor comparisons are coming soon.