HKEX (0388.HK): the stock exchange monopoly

2026-07-07 · By Lubin Danilo, founder of Lubin Investment

0388.HK: see the full analysis on Lubin Investment

Hong Kong Exchanges and Clearing owns and operates the Hong Kong stock exchange and its clearing house, a legal near-monopoly on one of Asia's most active financial markets. It passes all 10 criteria in my screener, a rare feat, with a free cash flow margin that even exceeds 100% of revenue.

Key takeaways

• Hong Kong Exchanges and Clearing passes all 10 criteria in my screener, a rare result I only see in a handful of companies.
• The company literally owns the Hong Kong stock exchange and its clearing house, a near-monopoly position protected by regulation.
• Its free cash flow margin exceeds 100% of revenue, a figure reflecting extremely low investment needs to run the business.
• The stock trades at roughly 20 times its free cash flow, a level that already recognizes the quality of this near-monopoly without being extreme.

A business few people really understand

Hong Kong Exchanges and Clearing (HKEX) doesn't just provide financial data like Bloomberg or FactSet: it literally owns the market infrastructure itself, the Hong Kong stock exchange and the clearing house that guarantees settlement of every transaction. Every share bought or sold in Hong Kong, every derivative traded, generates a fee for HKEX. It's a critical infrastructure business, not a simple optional service provider.

A perfect score, rare in my screener

HKEX passes all ten of my financial criteria, a result I rarely observe. Net margin reaches 74.8%, a level almost never seen outside regulated near-monopolies, and the free cash flow margin even exceeds 100% of revenue: that means the company generates more available cash than its accounting revenue over the period, an extreme sign of how capital-light this business is once market infrastructure is in place.

The moat: a license, not just a brand

HKEX's moat isn't about reputation or customer loyalty: it's a legal monopoly. There is only one official stock exchange in Hong Kong, and regulators don't grant a competing license to a new entrant. It's one of the strongest moats that exist, comparable to an airport or a regulated utility, but with far higher profitability thanks to the near-total absence of heavy physical assets to maintain.

A parallel with CME, ICE, SPGI, and other financial data names

I've already covered a group of financial data and infrastructure companies on my site (CME Group, ICE, S&P Global, FactSet, MSCI), but HKEX stands apart by its business: those companies mainly sell data or operate derivatives markets, while HKEX literally operates the stock exchange itself and its clearing house, with geographic exposure concentrated on Asia rather than Western markets.

Risks specific to this stock

HKEX's main risk is geopolitical and regulatory: its business depends on the vitality of Hong Kong and mainland Chinese financial markets, sensitive to tensions between China and the West and to changes in Hong Kong's special status. A sustained drop in trading volumes, tied to declining attractiveness of the financial hub, would hit revenue directly, unlike a more geographically diversified business.

What I take away from this

HKEX is one of the highest-quality profiles I've found to date: a legal monopoly, extreme profitability, and near-zero capital needs. Its valuation, while not cheap, also doesn't seem to reflect an extravagant premium for this quality, perhaps due to the geopolitical risk tied to Hong Kong. That's exactly the kind of tension between exceptional quality and geographic risk premium my method tries to surface.

FAQ

What does Hong Kong Exchanges and Clearing actually own?

The company literally owns the Hong Kong stock exchange and its clearing house, and collects a fee on every transaction executed there.

Why is HKEX's score so high?

It passes all 10 criteria in my screener, with a 74.8% net margin and a free cash flow margin that even exceeds 100% of revenue.

How is HKEX different from CME or S&P Global?

Those companies mainly sell data or operate derivatives markets, while HKEX literally operates the stock exchange itself and its clearing house, with exposure concentrated on Asia.

What is the main risk with HKEX?

A geopolitical and regulatory risk tied to the vitality of Hong Kong's financial markets, sensitive to tensions between China and the West.

Is HKEX expensive on the stock market?

It trades at roughly 20 times its free cash flow, a level that recognizes its quality without looking extreme.

0388.HK: see the full analysis on Lubin Investment

About the author

Written by Lubin Danilo, founder of Lubin Investment. A self-taught individual investor, I find fundamental analysis fascinating, and it has delivered excellent results. For three years now, my performance has beaten the S&P 500. But analyzing every stock took too much time: sites with incomplete data, calculation methods and criteria never aligned with mine. And spotting the best stocks was just as time-consuming, even with my own well-defined checklist. So I put my software development background to work to build this software, base my investment strategy on its results, and share it with people who share the same passion as me. It judges a company's quality and its price separately, using criteria drawn from the financial literature (Warren Buffett, Michael Mauboussin, Aswath Damodaran).