In a recent LinkedIn post, Michael Merlin explores the often-overlooked benefits of concentrated investment strategies, challenging the conventional wisdom that broader diversification inherently leads to superior outcomes. Merlin argues that a focused approach, centered on high-quality investments, can significantly outperform strategies that prioritize owning a large number of assets.
Merlin begins by highlighting a core paradox in investing: the perceived safety of owning many different assets versus the hidden risks that can arise from a lack of deep understanding. He posits that true investment security comes not from sheer breadth, but from a profound knowledge of a select few holdings.
“Owning everything feels safe. Not understanding creates hidden risk.”
The investment expert outlines several key reasons why a concentrated portfolio, when built with quality and discipline, can lead to better long-term results. According to Merlin, this approach sharpens decision-making and fosters accountability among investors.
The Power of Concentration and Quality
Merlin emphasizes that focusing on fewer, high-quality investments allows for deeper understanding and conviction. He contends that great businesses, characterized by strong fundamentals, have the capacity to grow value consistently across different market cycles, thereby outlasting short-term market fluctuations.
Focus Sharpens Decisions
One of the primary advantages Merlin points to is the clarity that concentration brings. He states that dilution, often a byproduct of excessive diversification, can weaken an investor’s conviction and obscure genuine risks within a portfolio. This lack of focus can lead to a passive approach where potential problems are not identified or addressed promptly.
“Concentration sharpens decisions and accountability.”
Furthermore, Merlin suggests that a deeper understanding of a smaller number of investments enables better monitoring and quicker, more informed actions when necessary. This level of knowledge, in his view, provides a sense of control over one’s financial destiny.
Conviction and Capital Allocation
Merlin also delves into the importance of conviction and strategic capital allocation. He argues that an investor’s best ideas deserve significant weighting in their portfolio to maximize their potential impact. This intentional approach, he notes, keeps the concept of opportunity cost visible and actively managed.
“Best ideas deserve meaningful weight. Opportunity cost stays visible and intentional.”
The author contrasts this with shallow investment theses that are prone to breaking under market pressure. High conviction, conversely, supports the patience and discipline required to ride out market volatility and allow quality investments to compound over time.
Risk Management Through Business Quality
A crucial point made by Merlin is that true investment risk stems not from the number of holdings, but from the underlying quality of the businesses themselves. He asserts that durable, well-managed companies are better equipped to absorb economic shocks, while fragile ones tend to magnify downside potential.
Merlin concludes by reiterating that discipline, driven by making fewer, better decisions, is a key differentiator for outperformance. He summarizes his philosophy by stating that while diversification can protect against ignorance, focus rewards understanding, and the combination of quality and discipline is the true engine for compounding wealth.
Merlin invites readers to reflect on their own investment strategies, asking, “How concentrated is your portfolio today?” He also directs readers to his book, “Financial Longevity: Increase Your Wealth Span, Spend Money Guilt-Free, and Gain the Confidence to Enjoy Your Bigger Future,” for further insights.
📝 About This Content
This article is based on insights shared by Michael Merlin on LinkedIn.
📅 Originally posted on February 28, 2026 | View original post on LinkedIn →