S&P 500 seesaws after hitting fresh record as U.S. government shutdown continues: Live updates CNBCStock Market Today: Nasdaq Edges Higher Up as Government Shutdown Enters Second Day — Live Updates The Wall Street JournalS&P 500, Nasdaq slip after hitting intraday records as momentum wavers ReutersDow Jones Today: Stock Indexes Rise on 2nd Day of Government Shutdown; S&P 500, Nasdaq Hit New Record Highs Investopedia