Exchange Consolidation and Vertical Silos

Decades ago, most major exchanges were separate, independently owned marketplaces. Since then, a wave of mergers has consolidated much of the world's trading into a handful of large groups — Deutsche Börse, ICE, Nasdaq, CME Group, and a few others — each of which now often owns not just one exchange, but several exchanges, a clearing house that settles the trades made on them, and the data business that sells the resulting price feeds.

A "vertical silo" describes this end-to-end ownership: the same company runs the venue where a trade happens, the clearing house that guarantees and settles it, and the terminal or feed that sells the resulting market data back to traders. The efficiency argument for this structure is real — a single company can integrate trading and clearing more smoothly, cutting friction and settlement risk for customers who use both. The concern regulators raise is that vertical integration can let a dominant exchange group charge monopoly-like prices for clearing or data precisely because a customer who wants to trade on that exchange has little choice but to also use its clearing house and buy its data, none of which face meaningful competition the way trading venues themselves increasingly do.

This tension is a recurring theme in market-structure regulation: rules like clearing interoperability mandates (letting a trade executed on one venue be cleared by a different, competing clearinghouse) and data fee caps exist specifically to blunt the pricing power that a vertically integrated exchange group would otherwise have over the parts of the pipeline that face less competitive pressure than execution itself.