Source: https://mochatrade.com/learn/glossary/dark-pool

# Dark pool
URL: https://mochatrade.com/learn/glossary/dark-pool
Last modified: 2026-10-17

A dark pool is a private trading venue where orders stay hidden until they fill, so a fund can move a large block without [showing its hand on the public book](https://mochatrade.com/learn/us-market-structure/how-us-stock-prices-form). Trades still print to the tape afterward and must respect the [one national best price set up in 1975](https://mochatrade.com/learn/us-market-structure/us-stock-market-explained).

## Related terms

- NBBO: https://mochatrade.com/learn/glossary/nbbo
- NYSE: https://mochatrade.com/learn/glossary/nyse
- NASDAQ: https://mochatrade.com/learn/glossary/nasdaq
- CME Group: https://mochatrade.com/learn/glossary/cme-group
- Index futures (E-mini S&P 500): https://mochatrade.com/learn/glossary/index-futures
- US ETF: https://mochatrade.com/learn/glossary/us-etf