Source: https://mochatrade.com/learn/glossary/limit-up-limit-down

# Limit up-limit down
URL: https://mochatrade.com/learn/glossary/limit-up-limit-down
Last modified: 2026-10-17

Limit up-limit down is the US single-stock speed limit: a band around the recent price, 5% either side for large stocks and 10% for the rest. If the price sits at the edge for fifteen seconds, [trading stops everywhere for five minutes](https://mochatrade.com/learn/us-market-structure/how-us-stock-prices-form) and restarts with an auction. Index-wide falls trigger a [separate set of market-wide breakers](https://mochatrade.com/learn).

## Related terms

- Trading halt: https://mochatrade.com/learn/glossary/trading-halt
- NYSE: https://mochatrade.com/learn/glossary/nyse
- CME Group: https://mochatrade.com/learn/glossary/cme-group
- Closing auction (official close): https://mochatrade.com/learn/glossary/closing-auction
- Circuit breaker (US): https://mochatrade.com/learn/glossary/circuit-breaker
- Index ETF: https://mochatrade.com/learn/glossary/index-etf