Dark pools are private off-book trading venues widely used in TradFi to execute block trades discreetly, shielding them from order book impact, slippage, and latency arbitrage such as MEV bots

Quotes that support claims

Zhao said that “large traders in TradFi use dark pools, often 10 times bigger” than traditional, transparent pools. Dark pools are private trading venues where large orders are hidden from public view until after they are executed.

These pools are essentially private trading venues that do not make trades publicly visible until after they are executed