Dome Enables Cross-Venue Routing

Vertical integration matters because the exchange can treat data as a customer acquisition subsidy, not a standalone profit center. Polymarket and Kalshi make money first from trading volume and liquidity, so they can price APIs and media feeds aggressively, or bundle them free, if that pulls more order flow onto their own venue. That leaves independent aggregators strongest where customers need cross venue routing, normalized schemas, and a single view of fragmented liquidity.

• Polymarket and Kalshi are already moving beyond consumer apps into distribution. Polymarket pairs near zero fees with a data monetization layer, while Kalshi is positioning its market probabilities as an information product. That means a platform can discount raw data if it helps lock in developers, brokers, or media buyers upstream of trading.
  3 sacra 4 sacra 5 kalshi
• The aggregator only wins when customers need something the venue cannot offer alone. Dome standardizes very different architectures, matches equivalent markets across platforms, and routes orders to the best venue. In practice, that helps a builder avoid wiring separately into Polymarket blockchain data, Kalshi REST endpoints, and every niche exchange that follows.
  1 sacra 2 sacra
• This is the same playbook as exchanges and sportsbooks. The venue with the most liquidity can accept lower take rates on adjacent products because the core engine is order flow. FanDuel and CME have already launched a joint prediction market platform, and Kalshi has an exclusive CNBC data partnership, showing that data and distribution are becoming part of the venue bundle.
  4 sacra 6 cmegroup

The market is heading toward a split where a few giant venues own the deepest pools of liquidity, while aggregators survive by sitting above them as the routing and developer layer. As more brokers, sportsbooks, and media companies embed event contracts, the winning independent platform will be the one that makes many fragmented markets feel like one market.