A major shift may be coming for the stock market in 2026. Nasdaq is planning to submit paperwork to the Securities & Exchange Commission seeking approval to enable around-the-clock stock trading for 23 hours a day during the week.The move would shake up the long-standing 9:30 a.m. to 4 p.m. trading session that's been in place since the 1980s, and market pros have mixed views on the prospect. While some market veterans believe that around-the-clock trading would ultimately be beneficial for the market, ot ...