Fred Martin's Disciplined Growth Portfolio: Heavy Tech & Energy Concentration
Disciplined Growth Investors' portfolio, as of March 31, 2026, shows significant concentration in Technology and Energy sectors, with notable changes in holdings.

Portfolio Overview
As of March 31, 2026, Fred Martin's portfolio at Disciplined Growth Investors exhibits a pronounced concentration in specific sectors and holdings. The analysis focuses on the Technology and Energy sectors, which together account for a substantial portion of the portfolio's allocation.
High Concentration in Technology and Energy
The portfolio demonstrates a clear tilt towards Technology and Energy stocks. Technology sector holdings collectively represent approximately 41.5% of the portfolio's allocation, while Energy stocks make up about 10.3%. This significant allocation to these two sectors suggests a strategic focus on these industries, likely driven by the fund's investment mandate.
Top Holdings by Value
The largest individual positions by value are heavily weighted towards Technology and Energy companies:
- GARMIN LTD (GRMN): A Technology holding, representing 6.32% of the portfolio.
- PLEXUS CORP (PLXS): Another Technology holding, at 6.19%.
- EVERPURE INC (PSTG): A Technology holding, accounting for 5.64%.
- EXPAND ENERGY (CHK): An Energy holding, representing 5.33%.
- VIASAT INC (VSAT): A Technology holding, at 5.31%.
- COTERRA ENERGY (CTRA): An Energy holding, making up 4.6%.
- ARISTA NETWORKS (ANET): A Technology holding, at 4.55%.
- COGNEX CORP (CGNX): A Technology holding, representing 4.33%.
- AKAMAI TECHNOLOGIES (AKAM): A Technology holding, at 3.9%.
- SEMTECH CORP (SMTC): A Technology holding, accounting for 3.47%.
Recent Changes in Holdings
The portfolio has seen reductions in several holdings over the prior period:
- GARMIN LTD (GRMN) decreased by 4.86% in shares.
- PLEXUS CORP (PLXS) saw a 6.05% reduction.
- EVERPURE INC (PSTG) experienced a 4.71% decrease.
- EXPAND ENERGY (CHK) had the largest percentage decrease at 6.92%.
- VIASAT INC (VSAT) decreased by 4.47%.
- COTERRA ENERGY (CTRA) saw a 5.64% reduction.
- ARISTA NETWORKS (ANET) decreased by 7.07%.
- COGNEX CORP (CGNX) saw a significant 7.16% reduction.
- AKAMAI TECHNOLOGIES (AKAM) decreased by 6.54%.
- SEMTECH CORP (SMTC) saw a substantial 21.22% reduction in shares.
Investment Strategy Analysis
The portfolio's strategy appears to be centered on investing in companies within the Technology and Energy sectors. The high allocation to Technology suggests confidence in the sector's growth potential, while the significant Energy allocation points to an interest in energy-related companies. The fund manager, Fred Martin, may be employing a concentrated approach, focusing on specific industry themes within these sectors. The recent reductions in several holdings could indicate a strategy of harvesting gains or reassessing positions, maintaining a disciplined approach to portfolio management.