If the NYSE Group exchanges receive an MWCB message from the SIPs, they will stop trading all equities and options. Trading in securities with unlisted rights on NYSE Group exchanges will not resume until the prime list interactions for those codes revive, and LULD Bands are established.
Following a Level 3 violation, trading on NYSE Group exchanges will be halted for the remainder of the trading day. At the usual times for each Exchange, order entry and trading will resume the following trading day. Following a Level 3 violation, NYSE Group non-listed symbol trading (Unlisted Trading Privileges) will resume until the primary listing exchanges for those symbols open and LULD Bands are received, just as it did after Level 1 and 2 breaches.
It permits software carriers of at least 15 NYSE-operated securities to be imported regardless of their value. Starting at 4:00 p.m. and finishing at 6:30 p.m., baskets can be submitted via the web-based electronic platform or an XML format. Holders of an equity trading license who have facilitated a basket trade or paired the baskets of two customers will send aggregate data to the Exchange for immediate execution. Execution reports are available via the web-based electronic platform or in XML format after a trade is entered.
Members who believe an NYSE execution is incorrect may request that the transaction(s) be reviewed: Requests for Customer Submission for Clearly Erroneous Execution Review must be made through the website’s Customer Submission for Clearly Erroneous Execution Review link.. The request must be submitted within thirty (30) minutes of the execution time. Following receipt of the request, the execution(s) will be reviewed. A determination will be made as to whether the execution(s) submitted for the request are erroneous, as defined by NYSE path at https://www.webull.com/quote/nyse-path.
Limit Up/Limit Down/Limit Up/Limit Down/Limit
On May 31, 2012, the SEC adopted a pilot version of a National Market System Plan, known as the Limit Up/Limit Down (“LULD”) Plan, to address extreme market volatility.
The Plan is designed to keep NMS Stock trades within defined price bands, which are set at a percentage level above and below a security’s average reference price over the previous five minutes. Whether security is classified as Tier 1 or Tier 2 determines the percentage level. The S& P 500, Russell 1000, and a few Exchange Traded Items are all Tier 1 stocks (ETPs). Tier 2 includes all NMS securities except rights and warrants, which are expressly excluded from coverage. During regular trading hours, the Plan is in effect from 9:30 a.m. to 4:00 p.m. ET. There are many other stocks such as otcmkts gbtc which you can check at https://www.webull.com/quote/otcmkts-gbtc.