Anyone looking to trade US shares today will have to wait. The New York Stock Exchange and Nasdaq are closed on Monday, 7 September, for Labor Day. Both are scheduled to reopen for normal trading at 9.30 a.m. Eastern Time on Tuesday, 8 September.
The US fixed-income market is also observing the holiday. The Securities Industry and Financial Markets Association (SIFMA) has recommended a full market close on Monday for trading in US dollar-denominated fixed-income securities in the US, UK and Japan. Its holiday schedules are industry recommendations rather than laws requiring every firm to close.