[Nasdaq to Officially Apply for '5X23' Hour Trading] BlockBeats News, December 16: According to foreign media reports, Nasdaq plans to submit a filing to the U.S. Securities and Exchange Commission on Monday to launch a round-the-clock stock trading service. Nasdaq intends to extend the trading hours for stocks and exchange-traded products (ETPs) from the current five days a week, 16 hours per day, to 23 hours per day. Nasdaq's new '5X23' model will be divided into two main trading sessions: Daytime Session: Starts at 4:00 AM ET and ends at 8:00 PM ET. This session will continue to include pre-market, regular, and after-hours trading periods, with the opening bell (9:30 AM) and closing bell (4:00 PM) of the regular trading session remaining unchanged. Night Session: Starts at 9:00 PM ET and ends at 4:00 AM ET the following day. Trades executed between 9:00 PM and midnight will be considered as transactions for the next calendar day. Under the new plan, the trading week will begin at 9:00 PM on Sunday and end at 8:00 PM on Friday after the daytime session concludes. (Jin10)