Three thresholds, three responses, one goal: stop a crash from feeding on itself. Here’s exactly what each level triggers.
NoVo Options Trading ·
Educational only, not financial advice. Market rules and thresholds can change — verify current specifics with the exchanges or your broker.
The three market-wide circuit breaker levels — 7%, 13%, and 20% single-day S&P 500 declines — trigger progressively longer halts. Here’s exactly what each does.
The three levels
Level 1 (−7%): if hit before 3:25pm ET, a 15-minute market-wide halt; at/after 3:25pm, no halt. Level 2 (−13%): same rule — 15-minute halt before 3:25pm, none after. Level 3 (−20%): at any time, trading halts for the rest of the day. Each level is measured from the prior day’s S&P close.
The logic of the timing rule
Levels 1 and 2 don’t halt after 3:25pm because there’s little session left — a pause would just delay the inevitable close. Level 3 halts anytime because a 20% single-day crash is catastrophic enough to stop trading entirely and reset overnight. The escalating severity matches the escalating decline.
7% and 13% buy a 15-minute timeout (before 3:25pm); 20% ends the day. Progressive brakes for a progressively worse crash.
What it means for a scalper
If a halt hits while you’re in a 0DTE position, you’re frozen — you can’t exit until trading resumes, and it may reopen at a very different price. That’s a real tail risk on a crash day, and a reason risk controls and defined-risk long options (max loss = premium) matter. These events are rare, but knowing the mechanics keeps you calm if one occurs.
Ready to put it to work?
NoVo reads the full tape and maps every dealer level live — the market intelligence no human can track by hand — then draws it on your chart as it moves, and tells you what it has seen this setup do before.
Trader · $209/mo
The cockpit.
Every dealer level living on a real charting terminal — 1-minute to weekly, fifteen years deep, your own drawings on the map, SPY/QQQ/IWM one click apart — with the hourly audit, ‘The Line’ playbooks, the three books side by side and NoVo’s written read where you trade. Analyst included.
The same dealer map drawn on crypto — gamma by strike on every book with real open interest, funding per venue, open interest, 24-hour liquidation flow and true cost to trade — plus the on-chain liquidity map across Solana, Base and Robinhood Chain. NoVo reads it too.
The live dealer map — dealer positioning, options flow, and in-house sweeps & block prints — plus a written market read every session, to your inbox, the dashboard, and the private Analyst Discord. Structure, levels, and the order-flow footprint.
NoVo is a software tool for market analysis, not financial advice. This article is general education, not investment advice. Options trading involves substantial risk of loss, up to and including your entire capital. NoVo makes no guarantee of profit, win rate, or performance, and past results do not predict future outcomes. You are responsible for your own broker account, configuration, and trading decisions.
The member portal — delayed dealer levels with the gamma flip and the expected-move band on SPY, QQQ and IWM, plus sectors, movers and the week’s catalysts. NoVo’s Mid-Day Tape Review every trading day and the Week Ahead on Sundays. And the NoVo Discord: live discussion and NoVo’s daily dealer-map read.