Stats Intraday and market microstructure Circuit breaker clock

After 15:25 New York, only a 20% fall halts US stocks

Time of dayLevel 1, -7%Level 2, -13%Level 3, -20%
Before 09:30Nothing. The index is only measured 09:30 to 16:00.Nothing.Nothing.
09:30 to 15:25 inclusive15 minute halt, once per day15 minute halt, once per dayMarket closes until the next trading day
After 15:25No halt. Trading continues.No halt. Trading continues.Market closes until the next trading day
Early close days, after 12:25No halt. Trading continues.No halt. Trading continues.Market closes until the next trading day

Source: NYSE Rule 7.12 and Nasdaq Rule 4121, Trading Halts Due to Extraordinary Market Volatility.

US exchanges halt stock trading for fifteen minutes if the S&P 500 falls 7% or 13%, but only up to 15:25 New York time. After that, nothing stops the market short of a 20% fall, which closes it. The last half hour has one brake.

15:25Halt cutoff, New York
-7%Level 1 decline
-20%Level 3, closes market
3 of 4Fired near the open

Members only

The rest of this page is for members

Below this point there are 7 sections, 1 chart, 1 table and 5 named sources, roughly 1200 words of it. Every figure carries the source it came from and the date the data is from.

You can keep browsing every statistic in the library for free. The intro and the summary are always open.