The Primex Auction System's hours of operation coincide with regular
U.S. equity market trading hours (9:30 a.m. to 4:00 p.m. Eastern Time). The system will accept orders and process executions in any security eligible to trade within the system as long as the primary market for that security disseminates firm quotations, and the NBBO is neither locked
nor crossed.
The system will not accept market-on-open or market-on-close orders.
When the system is available and accessible (normally 7:30 a.m. to 6:00 p.m. ET), participants are able to enter indications of their response interest, update credit limits and clearing limits, review market activity, and evaluate their exposure.
