Market-Wide Circuit Breakers
Chapters in this video
What this video covers
- The three market-wide circuit breaker (MWCB) levels tied to S&P 500 declines of 7%, 13%, and 20%, and what triggers each
- Why Level 1 and Level 2 halts last 15 minutes but Level 3 shuts the market for the remainder of the day
- The 3:25 PM Eastern Time cutoff that eliminates Level 1 and Level 2 halts late in the session, while Level 3 still applies
- Why MWCB only triggers on declines, not rallies, and why each level can only activate once per day
- How Limit Up-Limit Down (LULD) creates price bands around a 5-minute average for individual National Market System (NMS) stocks
- The 15-second limit state and 5-minute trading pause workflow for LULD, and why bands double in the last 25 minutes for Tier 1 stocks
- The critical exam distinction that MWCB is decline-only while LULD halts on both up and down moves
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