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The Quality 13: A Portfolio of Monopolies and Compounders

I wanted to build a portfolio I'd never have to sell. Businesses so dominant, so essential, that I could hold them for decades and let compounding do the work.

The result is 13 positions — monopolies, duopolies, and toll booths on modern commerce. Every one of them has pricing power, excellent leadership, and cash flows that grow year after year.

The Holdings

StockWeightWhat It Owns
V7.7%Payment rails duopoly — clips every card transaction
MSFT7.7%Enterprise software + cloud + AI infrastructure
GOOG7.7%Search monopoly + YouTube + cloud
AAPL7.7%Consumer hardware ecosystem, 2B+ devices
SNPS7.7%Chip design software duopoly — no chips without Synopsys
ASML7.7%Literal monopoly on EUV lithography machines
GE7.7%Jet engine duopoly, 70% aftermarket revenue
TDG7.7%Sole-source aircraft parts, 50%+ EBITDA margins
FRFHF7.7%Insurance float + value investing (Buffett of the North)
NFLX7.7%250M+ subscribers, pricing power, content flywheel
COST7.7%Membership model, 90%+ renewal rate, fanatical customers
SPGI7.7%Credit ratings duopoly — if debt exists, S&P gets paid
FICO7.7%Credit scoring monopoly — every US loan uses FICO

Equal-weighted at 7.7% each. Simple to manage, easy to rebalance.

The Selection Criteria

Every stock passed three tests:

  1. Monopoly or duopoly — Can competitors realistically take share? If not, it's in.
  2. Cash flow machine — Strong free cash flow relative to costs, not dependent on capital raises.
  3. Excellent leadership — Proven operators who allocate capital well.

These aren't growth stocks I'm hoping will work out. They're businesses that already won.

Why Not Just Buy the S&P 500?

MetricQuality 13S&P 500
Expected Return19.4%12.0%
Volatility20.6%16.0%
Sharpe Ratio0.700.44
Positions13500

The S&P 500 holds a lot of average businesses. Banks with no moat, retailers fighting Amazon, commodity producers with no pricing power. You're paying for diversification but diluting quality.

Quality 13 concentrates on the winners. Yes, volatility is higher. Yes, drawdowns will hurt more. But you're getting 60% better risk-adjusted returns for that pain.

10-Year Math

$100,000 invested for 10 years:

PortfolioExpected Value
Quality 13$589,000
S&P 500$311,000

Even if Quality 13 takes a 50% crash in year one and SPY doesn't, Quality 13 still likely wins over a decade. That's what happens when you compound at 19% instead of 12%.

The Risks

This isn't a free lunch. The tradeoffs are real:

If you can't stomach a 30% drawdown, this isn't for you. Go buy SPY and sleep well.

The Bottom Line

Quality 13 is a bet on business fundamentals: that monopolies stay monopolies, that cash flows compound, and that excellent operators keep executing.

It's not diversified. It's not low volatility. But it's built to compound for decades.

Thirteen businesses. Zero intention to sell.


This is not financial advice. I hold positions in the securities mentioned. Do your own research.