Leadership and the Long Cycle: Notes from 28 Years of Investing

When I founded Aethon Capital in 1996, I held a number of strong opinions about what would make a great investment firm. Some have proven enduring; others I have had to revise—occasionally painfully—over the years. As Aethon enters its 30th year and prepares for its next phase of growth, I want to share five lessons that have most shaped my approach to investing and leadership over nearly three decades.

**Lesson one: the cycle is longer than you think**

When I started in private equity in the late 1980s, I was taught to think about market cycles in terms of three to five year periods. That framing turned out to be dangerously incomplete. The real cycles that matter for long-duration investors operate on much longer timeframes—often a decade or more—and they are often invisible until they are nearly over.

The cycle in interest rates that ended in 2022 lasted forty years. The cycle in globalization that began in the early 1990s lasted three decades. The cycle in the importance of operational improvement versus financial engineering as a source of private equity returns has spanned multiple decades. Investors who calibrate their thinking to short cycles miss the larger forces that ultimately determine outcomes.

The practical implication is to spend as much time thinking about the long-duration trends shaping the next decade as about the immediate environment. At Aethon, our annual strategy retreat devotes significant time to the long cycle—what is changing, what is constant, and what we are missing.

**Lesson two: people are the moat**

In my early years, I believed that the most important determinant of investment success was the quality of analysis, due diligence, and decision-making process. Those things matter, of course. But as I have grown older, I have come to believe that the most important determinant is the quality of people—both within the firm and across portfolio companies.

The decisions that matter most in any investment are often made under conditions of uncertainty, time pressure, or stress. The quality of judgment displayed in those moments depends on the people involved more than on any analytical framework. Building Aethon has, in many ways, been a sustained exercise in attracting, developing, and retaining people whose judgment I trust in those moments.

This has practical implications for how we run the firm. We invest heavily in talent development, internal mobility, and culture. We promote from within whenever possible. We protect time for mentoring and apprenticeship. And we are willing to walk away from investments where we lack conviction in the management team, regardless of how attractive the financial profile appears.

**Lesson three: optimism is a strategy**

This may sound naive, but I have come to believe that optimism is not just a personality trait—it is a competitive advantage in long-duration investing. The willingness to commit capital to building businesses, creating jobs, and pursuing improvements that may take years to materialize requires a fundamentally optimistic worldview.

Pessimism is intellectually attractive because it is often correct in the short term and provides easy cover against criticism. But the businesses and economies that have generated the most value over the past century have done so through patient, optimistic capital formation. The investors who have generated the strongest long-term returns have been those who maintained conviction through periods when pessimism was the consensus view.

I am not suggesting that optimism should override discipline. The most important investing skill is calibrated optimism—the willingness to act on a positive thesis while maintaining clear-eyed awareness of what could go wrong and predetermined responses if it does.

**Lesson four: humility is a process**

The most dangerous investors I have encountered are those who have been right enough times to mistake themselves for infallible. The most enduring investors are those who maintain genuine humility about the limits of their own knowledge and judgment, even after decades of success.

Humility, in my experience, is not a personality trait—it is a process. It requires actively soliciting dissenting views, taking criticism seriously, conducting honest post-mortems on both successes and failures, and creating organizational structures that surface inconvenient information. We have built a number of humility-enforcing rituals at Aethon, including pre-mortems on every major investment, regular external reviews of our investment process, and a culture that explicitly rewards challenging the consensus.

**Lesson five: the firm is the product**

Finally, after nearly thirty years, I am convinced that the most important thing I have built is not any specific investment or fund—it is the firm itself. Funds come and go. Investments succeed or fail. But the firm—its people, culture, processes, relationships, and reputation—is what compounds over decades.

This realization shapes how I spend my time. I devote a significant portion of my energy to firm building: recruiting senior talent, mentoring rising leaders, refining culture, articulating values, and building the institutional infrastructure that will outlast any individual fund cycle. The investments I am most proud of are not specific transactions—they are the institutional capabilities we have built that allow Aethon to compete at the highest level for decades.

I share these lessons with humility, recognizing that they are personal observations rather than universal truths. Different investors will draw different lessons from their own experience. But for whatever value they may have, these are the principles that have most shaped how I think about leading Aethon Capital into its next chapter.