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The Only Moat That Matters
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The Only Moat That Matters

In early-stage investing, competitive advantage starts with the person, not the product

Jay Keller

Co-Founder, Keller Winston

January 28, 20257 min read
InvestingFoundersCompetitive Advantage

Warren Buffett talks about economic moats — the durable competitive advantages that protect a business from competition. Wide moats. Narrow moats. No moats. It is a useful framework for evaluating mature businesses. But at the early stage, it is almost completely irrelevant.

Warren Buffett talks about economic moats — the durable competitive advantages that protect a business from competition. Wide moats. Narrow moats. No moats. It is a useful framework for evaluating mature businesses. But at the early stage, it is almost completely irrelevant.

At the early stage, there is only one moat that matters: the founder.

I have spent my career in fintech — building Onyx IQ from the ground up, watching the alternative lending space transform from a fringe experiment into a multi-trillion dollar infrastructure layer for the global economy. In that time, I have seen companies with extraordinary technology fail because the people behind them could not execute. And I have seen companies with ordinary technology succeed because the founders were extraordinary.

The pattern is not subtle. It is the single most consistent signal I have found.

What Peter Thiel Got Right

Peter Thiel's *Zero to One* is one of the few investing books that I think is genuinely worth reading — not because it tells you what to invest in, but because it forces you to think about what makes a business defensible at all. Thiel's central argument is that the most valuable companies are not the ones that compete; they are the ones that create. Monopolies built on secrets — things that are true but that most people do not yet believe.

But the insight I find most useful is not about the business. It is about the founder. Thiel argues that the best founders have a kind of definite optimism — a specific, concrete vision of the future that they are building toward, combined with the conviction that they can actually get there. Not the vague optimism of "the market is big and we have a great team." The specific, almost unreasonable belief that this particular thing, built in this particular way, will work.

I look for that quality in every founder I meet. And I can usually tell within the first fifteen minutes whether it is there.

The Fintech Lens

In financial services, the barriers to entry are real. Regulatory complexity. Capital requirements. Incumbent relationships. The weight of legacy infrastructure that has been accumulating for decades. These are not trivial obstacles.

But I have watched founders navigate all of them — not because they had more resources than the incumbents, but because they understood something the incumbents did not. They saw the friction in the system. They understood why it existed. And they built the technology to remove it.

At Onyx IQ, the insight was simple but profound: the alternative lending space was growing rapidly, but the technology infrastructure supporting it was a decade behind. Lenders were making billion-dollar decisions on spreadsheets. The underwriting process was manual, slow, and inconsistent. The opportunity was not to build a better lender. It was to build the infrastructure that made all lenders better.

That kind of insight — the ability to see the system from the outside, to identify where the friction is and why it persists — is the founder moat. It cannot be replicated by a competitor who does not have it. It cannot be purchased. It is the product of years of experience, pattern recognition, and the specific kind of intellectual honesty that allows you to see things as they are rather than as you wish they were.

The Three Questions

When I evaluate a founder, I am really asking three questions. First: do they understand the problem better than anyone else in the room? Not better than me — better than the market. Better than the incumbents. Better than the other founders trying to solve the same problem.

Second: do they have the operational capacity to execute? Understanding a problem is not the same as being able to solve it. The gap between insight and execution is where most companies die. I want to see evidence — not just in what they say, but in what they have already done — that this person can move from vision to reality.

Third: can they attract and retain the people they need? The founder moat is not just about the individual. It is about the founder's ability to build a team that extends their capabilities. The best founders I have backed are magnets — for talent, for customers, for partners. They create a gravitational field around their vision that pulls the right people in.

The Contrarian Bet

The most interesting investments I have made have been the ones where the conventional wisdom was wrong. Where the market had decided that a particular problem was too hard, or a particular space was too crowded, or a particular founder was too early.

First Round Capital's ten-year study of their portfolio found that the single best predictor of startup success was not the market size, the technology, or the business model. It was the founder's prior experience with the specific problem they were solving. Founders who had lived the problem — who had felt the friction personally, who had tried and failed to solve it with existing tools — dramatically outperformed founders who had identified the problem from the outside.

This makes intuitive sense. But it has a counterintuitive implication: the best investments are often in spaces that look unattractive from the outside, because the founder's insight into the problem is not yet visible to the market.

What This Means for How We Invest

At Keller Winston, we do not start with markets. We start with people. We ask: is this person the right person to solve this specific problem? Do they have the insight, the experience, and the operational capacity to build something that matters?

If the answer is yes, the market question becomes almost secondary. Great founders find markets. They create them. They expand them. The history of venture capital is littered with companies that succeeded in markets that did not exist when they were founded, because the founder was extraordinary enough to create the conditions for their own success.

The moat is the person. Everything else is a consequence.

Jay Keller is the co-founder of Keller Winston and the founder of Onyx IQ.